+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright (C) 2002-2003 Cluster File Systems, Inc.
-# Authors: Robert Read <rread@clusterfs.com>
-# Mike Shaver <shaver@clusterfs.com>
-# This file is part of Lustre, http://www.lustre.org.
-#
-# Lustre is free software; you can redistribute it and/or
-# modify it under the terms of version 2 of the GNU General Public
-# License as published by the Free Software Foundation.
-#
-# Lustre is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Lustre; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-# lconf - lustre configuration tool
-#
-# lconf is the main driver script for starting and stopping
-# lustre filesystem services.
-#
-# Based in part on the XML obdctl modifications done by Brian Behlendorf
-
-import sys, getopt, types
-import string, os, stat, popen2, socket, time, random, fcntl, select
-import re, exceptions, signal, traceback
-import xml.dom.minidom
-
-if sys.version[0] == '1':
- from FCNTL import F_GETFL, F_SETFL
-else:
- from fcntl import F_GETFL, F_SETFL
-
-PYMOD_DIR = "@PYMOD_DIR@"
-
-def development_mode():
- base = os.path.dirname(sys.argv[0])
- if os.access(base+"/Makefile", os.R_OK):
- return 1
- return 0
-
-if not development_mode():
- sys.path.append(PYMOD_DIR)
-
-import Lustre
-
-# Global parameters
-MAXTCPBUF = 16777216
-DEFAULT_TCPBUF = 8388608
-DEFAULT_PORT = 988
-#
-# Maximum number of devices to search for.
-# (the /dev/loop* nodes need to be created beforehand)
-MAX_LOOP_DEVICES = 256
-PORTALS_DIR = 'portals'
-
-# Needed to call lconf --record
-CONFIG_FILE = ""
-
-# Please keep these in sync with the values in portals/kp30.h
-ptldebug_names = {
- "trace" : (1 << 0),
- "inode" : (1 << 1),
- "super" : (1 << 2),
- "ext2" : (1 << 3),
- "malloc" : (1 << 4),
- "cache" : (1 << 5),
- "info" : (1 << 6),
- "ioctl" : (1 << 7),
- "blocks" : (1 << 8),
- "net" : (1 << 9),
- "warning" : (1 << 10),
- "buffs" : (1 << 11),
- "other" : (1 << 12),
- "dentry" : (1 << 13),
- "portals" : (1 << 14),
- "page" : (1 << 15),
- "dlmtrace" : (1 << 16),
- "error" : (1 << 17),
- "emerg" : (1 << 18),
- "ha" : (1 << 19),
- "rpctrace" : (1 << 20),
- "vfstrace" : (1 << 21),
- "reada" : (1 << 22),
- }
-
-subsystem_names = {
- "undefined" : (1 << 0),
- "mdc" : (1 << 1),
- "mds" : (1 << 2),
- "osc" : (1 << 3),
- "ost" : (1 << 4),
- "class" : (1 << 5),
- "log" : (1 << 6),
- "llite" : (1 << 7),
- "rpc" : (1 << 8),
- "mgmt" : (1 << 9),
- "portals" : (1 << 10),
- "socknal" : (1 << 11),
- "qswnal" : (1 << 12),
- "pinger" : (1 << 13),
- "filter" : (1 << 14),
- "ptlbd" : (1 << 15),
- "echo" : (1 << 16),
- "ldlm" : (1 << 17),
- "lov" : (1 << 18),
- "gmnal" : (1 << 19),
- "ptlrouter" : (1 << 20),
- "cobd" : (1 << 21),
- "ibnal" : (1 << 22),
- }
-
-
-first_cleanup_error = 0
-def cleanup_error(rc):
- global first_cleanup_error
- if not first_cleanup_error:
- first_cleanup_error = rc
-
-# ============================================================
-# debugging and error funcs
-
-def fixme(msg = "this feature"):
- raise Lustre.LconfError, msg + ' not implmemented yet.'
-
-def panic(*args):
- msg = string.join(map(str,args))
- if not config.noexec:
- raise Lustre.LconfError(msg)
- else:
- print "! " + msg
-
-def log(*args):
- msg = string.join(map(str,args))
- print msg
-
-def logall(msgs):
- for s in msgs:
- print string.strip(s)
-
-def debug(*args):
- if config.verbose:
- msg = string.join(map(str,args))
- print msg
-
-# ack, python's builtin int() does not support '0x123' syntax.
-# eval can do it, although what a hack!
-def my_int(s):
- try:
- if s[0:2] == '0x':
- return eval(s, {}, {})
- else:
- return int(s)
- except SyntaxError, e:
- raise ValueError("not a number")
- except NameError, e:
- raise ValueError("not a number")
-
-# ============================================================
-# locally defined exceptions
-class CommandError (exceptions.Exception):
- def __init__(self, cmd_name, cmd_err, rc=None):
- self.cmd_name = cmd_name
- self.cmd_err = cmd_err
- self.rc = rc
-
- def dump(self):
- import types
- if type(self.cmd_err) == types.StringType:
- if self.rc:
- print "! %s (%d): %s" % (self.cmd_name, self.rc, self.cmd_err)
- else:
- print "! %s: %s" % (self.cmd_name, self.cmd_err)
- elif type(self.cmd_err) == types.ListType:
- if self.rc:
- print "! %s (error %d):" % (self.cmd_name, self.rc)
- else:
- print "! %s:" % (self.cmd_name)
- for s in self.cmd_err:
- print "> %s" %(string.strip(s))
- else:
- print self.cmd_err
-
-
-# ============================================================
-# handle daemons, like the acceptor
-class DaemonHandler:
- """ Manage starting and stopping a daemon. Assumes daemon manages
- it's own pid file. """
-
- def __init__(self, cmd):
- self.command = cmd
- self.path =""
-
- def start(self):
- if self.running():
- log(self.command, "already running.")
- if not self.path:
- self.path = find_prog(self.command)
- if not self.path:
- panic(self.command, "not found.")
- ret, out = runcmd(self.path +' '+ self.command_line())
- if ret:
- raise CommandError(self.path, out, ret)
-
- def stop(self):
- if self.running():
- pid = self.read_pidfile()
- try:
- log ("killing process", pid)
- os.kill(pid, 15)
- #time.sleep(1) # let daemon die
- except OSError, e:
- log("unable to kill", self.command, e)
- if self.running():
- log("unable to kill", self.command)
-
- def running(self):
- pid = self.read_pidfile()
- if pid:
- try:
- os.kill(pid, 0)
- except OSError:
- self.clean_pidfile()
- else:
- return 1
- return 0
-
- def read_pidfile(self):
- try:
- fp = open(self.pidfile(), 'r')
- pid = int(fp.read())
- fp.close()
- return pid
- except IOError:
- return 0
-
- def clean_pidfile(self):
- """ Remove a stale pidfile """
- log("removing stale pidfile:", self.pidfile())
- try:
- os.unlink(self.pidfile())
- except OSError, e:
- log(self.pidfile(), e)
-
-class AcceptorHandler(DaemonHandler):
- def __init__(self, port, net_type, send_mem, recv_mem, irq_aff):
- DaemonHandler.__init__(self, "acceptor")
- self.port = port
- self.flags = ''
- self.send_mem = send_mem
- self.recv_mem = recv_mem
-
- if irq_aff:
- self.flags = self.flags + ' -i'
-
- def pidfile(self):
- return "/var/run/%s-%d.pid" % (self.command, self.port)
-
- def command_line(self):
- return string.join(map(str,('-s', self.send_mem, '-r', self.recv_mem, self.flags, self.port)))
-
-acceptors = {}
-
-# start the acceptors
-def run_acceptors():
- if config.lctl_dump or config.record:
- return
- for port in acceptors.keys():
- daemon = acceptors[port]
- if not daemon.running():
- daemon.start()
-
-def run_one_acceptor(port):
- if config.lctl_dump or config.record:
- return
- if acceptors.has_key(port):
- daemon = acceptors[port]
- if not daemon.running():
- daemon.start()
- else:
- panic("run_one_acceptor: No acceptor defined for port:", port)
-
-def stop_acceptor(port):
- if acceptors.has_key(port):
- daemon = acceptors[port]
- if daemon.running():
- daemon.stop()
-
-
-# ============================================================
-# handle lctl interface
-class LCTLInterface:
- """
- Manage communication with lctl
- """
-
- def __init__(self, cmd):
- """
- Initialize close by finding the lctl binary.
- """
- self.lctl = find_prog(cmd)
- self.save_file = ''
- self.record_device = ''
- if not self.lctl:
- if config.noexec:
- debug('! lctl not found')
- self.lctl = 'lctl'
- else:
- raise CommandError('lctl', "unable to find lctl binary.")
-
- def use_save_file(self, file):
- self.save_file = file
-
- def record(self, dev_name, logname):
- log("Recording log", logname, "on", dev_name)
- self.record_device = dev_name
- self.record_log = logname
-
- def end_record(self):
- log("End recording log", self.record_log, "on", self.record_device)
- self.record_device = None
- self.record_log = None
-
- def set_nonblock(self, fd):
- fl = fcntl.fcntl(fd, F_GETFL)
- fcntl.fcntl(fd, F_SETFL, fl | os.O_NDELAY)
-
- def run(self, cmds):
- """
- run lctl
- the cmds are written to stdin of lctl
- lctl doesn't return errors when run in script mode, so
- stderr is checked
- should modify command line to accept multiple commands, or
- create complex command line options
- """
- cmd_line = self.lctl
- if self.save_file:
- cmds = '\n dump ' + self.save_file + '\n' + cmds
- elif self.record_device:
- cmds = """
- device $%s
- record %s
- %s""" % (self.record_device, self.record_log, cmds)
-
- debug("+", cmd_line, cmds)
- if config.noexec: return (0, [])
-
- child = popen2.Popen3(cmd_line, 1) # Capture stdout and stderr from command
- child.tochild.write(cmds + "\n")
- child.tochild.close()
-
- # From "Python Cookbook" from O'Reilly
- outfile = child.fromchild
- outfd = outfile.fileno()
- self.set_nonblock(outfd)
- errfile = child.childerr
- errfd = errfile.fileno()
- self.set_nonblock(errfd)
-
- outdata = errdata = ''
- outeof = erreof = 0
- while 1:
- ready = select.select([outfd,errfd],[],[]) # Wait for input
- if outfd in ready[0]:
- outchunk = outfile.read()
- if outchunk == '': outeof = 1
- outdata = outdata + outchunk
- if errfd in ready[0]:
- errchunk = errfile.read()
- if errchunk == '': erreof = 1
- errdata = errdata + errchunk
- if outeof and erreof: break
- # end of "borrowed" code
-
- ret = child.wait()
- if os.WIFEXITED(ret):
- rc = os.WEXITSTATUS(ret)
- else:
- rc = 0
- if rc or len(errdata):
- raise CommandError(self.lctl, errdata, rc)
- return rc, outdata
-
- def runcmd(self, *args):
- """
- run lctl using the command line
- """
- cmd = string.join(map(str,args))
- debug("+", self.lctl, cmd)
- rc, out = run(self.lctl, cmd)
- if rc:
- raise CommandError(self.lctl, out, rc)
- return rc, out
-
-
- def clear_log(self, dev, log):
- """ clear an existing log """
- cmds = """
- device $%s
- probe
- clear_log %s
- quit """ % (dev, log)
- self.run(cmds)
-
- def network(self, net, nid):
- """ set mynid """
- cmds = """
- network %s
- mynid %s
- quit """ % (net, nid)
- self.run(cmds)
-
- # create a new connection
- def add_uuid(self, net_type, uuid, nid):
- cmds = "\n add_uuid %s %s %s" %(uuid, nid, net_type)
- self.run(cmds)
-
- def add_autoconn(self, net_type, send_mem, recv_mem, nid, hostaddr,
- port, flags):
- if net_type in ('tcp',) and not config.lctl_dump:
- cmds = """
- network %s
- send_mem %d
- recv_mem %d
- add_autoconn %s %s %d %s
- quit""" % (net_type,
- send_mem,
- recv_mem,
- nid, hostaddr, port, flags )
- self.run(cmds)
-
- def connect(self, srv):
- self.add_uuid(srv.net_type, srv.nid_uuid, srv.nid)
- if srv.net_type in ('tcp',) and not config.lctl_dump:
- flags = 's'
- if srv.irq_affinity:
- flags = flags + 'i'
- self.add_autoconn(srv.net_type, srv.send_mem, srv.recv_mem,
- srv.nid, srv.hostaddr, srv.port, flags)
-
- # Recover a device
- def recover(self, dev_name, new_conn):
- cmds = """
- device $%s
- recover %s""" %(dev_name, new_conn)
- self.run(cmds)
-
- # add a route to a range
- def add_route(self, net, gw, lo, hi):
- cmds = """
- network %s
- add_route %s %s %s
- quit """ % (net,
- gw, lo, hi)
- try:
- self.run(cmds)
- except CommandError, e:
- log ("ignore: ")
- e.dump()
-
- def del_route(self, net, gw, lo, hi):
- cmds = """
- ignore_errors
- network %s
- del_route %s %s %s
- quit """ % (net, gw, lo, hi)
- self.run(cmds)
-
- # add a route to a host
- def add_route_host(self, net, uuid, gw, tgt):
- self.add_uuid(net, uuid, tgt)
- cmds = """
- network %s
- add_route %s %s
- quit """ % (net,
- gw, tgt)
- try:
- self.run(cmds)
- except CommandError, e:
- log ("ignore: ")
- e.dump()
-
- # add a route to a range
- def del_route_host(self, net, uuid, gw, tgt):
- self.del_uuid(uuid)
- cmds = """
- ignore_errors
- network %s
- del_route %s %s
- quit """ % (net, gw, tgt)
- self.run(cmds)
-
-
- def del_autoconn(self, net_type, nid, hostaddr):
- if net_type in ('tcp',) and not config.lctl_dump:
- cmds = """
- ignore_errors
- network %s
- del_autoconn %s %s s
- quit""" % (net_type,
- nid, hostaddr)
- self.run(cmds)
-
- # disconnect one connection
- def disconnect(self, srv):
- self.del_uuid(srv.nid_uuid)
- if srv.net_type in ('tcp',) and not config.lctl_dump:
- self.del_autoconn(srv.net_type, srv.nid, srv.hostaddr)
-
- def del_uuid(self, uuid):
- cmds = """
- ignore_errors
- del_uuid %s
- quit""" % (uuid,)
- self.run(cmds)
-
- # disconnect all
- def disconnectAll(self, net):
- cmds = """
- ignore_errors
- network %s
- disconnect
- quit""" % (net)
- self.run(cmds)
-
- def attach(self, type, name, uuid):
- cmds = """
- attach %s %s %s
- quit""" % (type, name, uuid)
- self.run(cmds)
-
- def setup(self, name, setup = ""):
- cmds = """
- cfg_device %s
- setup %s
- quit""" % (name, setup)
- self.run(cmds)
-
-
- # create a new device with lctl
- def newdev(self, type, name, uuid, setup = ""):
- self.attach(type, name, uuid);
- try:
- self.setup(name, setup)
- except CommandError, e:
- self.cleanup(name, uuid, 0)
- raise e
-
-
- # cleanup a device
- def cleanup(self, name, uuid, force, failover = 0):
- if failover: force = 1
- cmds = """
- ignore_errors
- cfg_device $%s
- cleanup %s %s
- detach
- quit""" % (name, ('', 'force')[force],
- ('', 'failover')[failover])
- self.run(cmds)
-
- # create an lov
- def lov_setup(self, name, uuid, desc_uuid, mdsuuid, stripe_cnt,
- stripe_sz, stripe_off,
- pattern, devlist):
- cmds = """
- attach lov %s %s
- lov_setup %s %d %d %d %s %s
- quit""" % (name, uuid, desc_uuid, stripe_cnt, stripe_sz, stripe_off,
- pattern, devlist)
- self.run(cmds)
-
- # create an lov
- def lov_setconfig(self, uuid, mdsuuid, stripe_cnt, stripe_sz, stripe_off,
- pattern, devlist):
- cmds = """
- cfg_device $%s
- lov_setconfig %s %d %d %d %s %s
- quit""" % (mdsuuid, uuid, stripe_cnt, stripe_sz, stripe_off, pattern, devlist)
- self.run(cmds)
-
- # dump the log file
- def dump(self, dump_file):
- cmds = """
- debug_kernel %s 1
- quit""" % (dump_file)
- self.run(cmds)
-
- # get list of devices
- def device_list(self):
- devices = '/proc/fs/lustre/devices'
- ret = []
- if os.access(devices, os.R_OK):
- try:
- fp = open(devices, 'r')
- ret = fp.readlines()
- fp.close()
- except IOError, e:
- log(e)
- return ret
-
- # get lustre version
- def lustre_version(self):
- rc, out = self.runcmd('version')
- return out
-
- # dump mount options
- def mount_option(self, profile, osc, mdc):
- cmds = """
- mount_option %s %s %s
- quit""" % (profile, osc, mdc)
- self.run(cmds)
-
- # delete mount options
- def del_mount_option(self, profile):
- cmds = """
- del_mount_option %s
- quit""" % (profile,)
- self.run(cmds)
-
- def set_timeout(self, timeout):
- cmds = """
- set_timeout %s
- quit""" % (timeout,)
- self.run(cmds)
-
- # delete mount options
- def set_lustre_upcall(self, upcall):
- cmds = """
- set_lustre_upcall %s
- quit""" % (upcall,)
- self.run(cmds)
-# ============================================================
-# Various system-level functions
-# (ideally moved to their own module)
-
-# Run a command and return the output and status.
-# stderr is sent to /dev/null, could use popen3 to
-# save it if necessary
-def runcmd(cmd):
- debug ("+", cmd)
- if config.noexec: return (0, [])
- f = os.popen(cmd + ' 2>&1')
- out = f.readlines()
- ret = f.close()
- if ret:
- ret = ret >> 8
- else:
- ret = 0
- return (ret, out)
-
-def run(*args):
- cmd = string.join(map(str,args))
- return runcmd(cmd)
-
-# Run a command in the background.
-def run_daemon(*args):
- cmd = string.join(map(str,args))
- debug ("+", cmd)
- if config.noexec: return 0
- f = os.popen(cmd + ' 2>&1')
- ret = f.close()
- if ret:
- ret = ret >> 8
- else:
- ret = 0
- return ret
-
-# Determine full path to use for an external command
-# searches dirname(argv[0]) first, then PATH
-def find_prog(cmd):
- syspath = string.split(os.environ['PATH'], ':')
- cmdpath = os.path.dirname(sys.argv[0])
- syspath.insert(0, cmdpath);
- if config.portals:
- syspath.insert(0, os.path.join(config.portals, 'utils/'))
- for d in syspath:
- prog = os.path.join(d,cmd)
- if os.access(prog, os.X_OK):
- return prog
- return ''
-
-# Recursively look for file starting at base dir
-def do_find_file(base, mod):
- fullname = os.path.join(base, mod)
- if os.access(fullname, os.R_OK):
- return fullname
- for d in os.listdir(base):
- dir = os.path.join(base,d)
- if os.path.isdir(dir):
- module = do_find_file(dir, mod)
- if module:
- return module
-
-def find_module(src_dir, dev_dir, modname):
- modbase = src_dir +'/'+ dev_dir +'/'+ modname
- for modext in '.ko', '.o':
- module = modbase + modext
- try:
- if os.access(module, os.R_OK):
- return module
- except OSError:
- pass
- return None
-
-# is the path a block device?
-def is_block(path):
- s = ()
- try:
- s = os.stat(path)
- except OSError:
- return 0
- return stat.S_ISBLK(s[stat.ST_MODE])
-
-# build fs according to type
-# fixme: dangerous
-def mkfs(dev, devsize, fstype, jsize, isize, mkfsoptions, isblock=1):
- block_cnt = ''
- jopt = ''
- iopt = ''
- if devsize:
- if devsize < 8000:
- panic("size of filesystem on '%s' must be larger than 8MB, but is set to %s"%
- (dev, devsize))
- # devsize is in 1k, and fs block count is in 4k
- block_cnt = devsize/4
-
- if fstype in ('ext3', 'extN'):
- # ext3 journal size is in megabytes
- if jsize == 0:
- if devsize == 0:
- if not is_block(dev):
- ret, out = runcmd("ls -l %s" %dev)
- devsize = int(string.split(out[0])[4]) / 1024
- else:
- ret, out = runcmd("sfdisk -s %s" %dev)
- devsize = int(out[0])
- if devsize > 1024 * 1024:
- jsize = ((devsize / 102400) * 4)
- if jsize > 400:
- jsize = 400
- if jsize: jopt = "-J size=%d" %(jsize,)
- if isize: iopt = "-I %d" %(isize,)
- mkfs = 'mkfs.ext2 -j -b 4096 '
- if not isblock or config.force:
- mkfs = mkfs + ' -F '
- elif fstype == 'reiserfs':
- # reiserfs journal size is in blocks
- if jsize: jopt = "--journal_size %d" %(jsize,)
- mkfs = 'mkreiserfs -ff'
- else:
- panic('unsupported fs type: ', fstype)
-
- if config.mkfsoptions != None:
- mkfs = mkfs + ' ' + config.mkfsoptions
- if mkfsoptions != None:
- mkfs = mkfs + ' ' + mkfsoptions
- (ret, out) = run (mkfs, jopt, iopt, dev, block_cnt)
- if ret:
- panic("Unable to build fs:", dev, string.join(out))
- # enable hash tree indexing on fsswe
- if fstype in ('ext3', 'extN'):
- htree = 'echo "feature FEATURE_C5" | debugfs -w'
- (ret, out) = run (htree, dev)
- if ret:
- panic("Unable to enable htree:", dev)
-
-# some systems use /dev/loopN, some /dev/loop/N
-def loop_base():
- import re
- loop = '/dev/loop'
- if not os.access(loop + str(0), os.R_OK):
- loop = loop + '/'
- if not os.access(loop + str(0), os.R_OK):
- panic ("can't access loop devices")
- return loop
-
-# find loop device assigned to thefile
-def find_loop(file):
- loop = loop_base()
- for n in xrange(0, MAX_LOOP_DEVICES):
- dev = loop + str(n)
- if os.access(dev, os.R_OK):
- (stat, out) = run('losetup', dev)
- if out and stat == 0:
- m = re.search(r'\((.*)\)', out[0])
- if m and file == m.group(1):
- return dev
- else:
- break
- return ''
-
-# create file if necessary and assign the first free loop device
-def init_loop(file, size, fstype, journal_size, inode_size, mkfsoptions, reformat):
- dev = find_loop(file)
- if dev:
- print 'WARNING file:', file, 'already mapped to', dev
- return dev
- if reformat or not os.access(file, os.R_OK | os.W_OK):
- if size < 8000:
- panic("size of loopback file '%s' must be larger than 8MB, but is set to %s" % (file,size))
- (ret, out) = run("dd if=/dev/zero bs=1k count=0 seek=%d of=%s" %(size,
- file))
- if ret:
- panic("Unable to create backing store:", file)
- mkfs(file, size, fstype, journal_size, inode_size, mkfsoptions, isblock=0)
-
- loop = loop_base()
- # find next free loop
- for n in xrange(0, MAX_LOOP_DEVICES):
- dev = loop + str(n)
- if os.access(dev, os.R_OK):
- (stat, out) = run('losetup', dev)
- if stat:
- run('losetup', dev, file)
- return dev
- else:
- print "out of loop devices"
- return ''
- print "out of loop devices"
- return ''
-
-# undo loop assignment
-def clean_loop(file):
- dev = find_loop(file)
- if dev:
- ret, out = run('losetup -d', dev)
- if ret:
- log('unable to clean loop device:', dev, 'for file:', file)
- logall(out)
-
-# determine if dev is formatted as a <fstype> filesystem
-def need_format(fstype, dev):
- # FIXME don't know how to implement this
- return 0
-
-# initialize a block device if needed
-def block_dev(dev, size, fstype, reformat, autoformat, journal_size,
- inode_size, mkfsoptions):
- if config.noexec: return dev
- if not is_block(dev):
- dev = init_loop(dev, size, fstype, journal_size, inode_size,
- mkfsoptions, reformat)
- elif reformat or (need_format(fstype, dev) and autoformat == 'yes'):
- mkfs(dev, size, fstype, journal_size, inode_size, mkfsoptions,
- isblock=0)
-# else:
-# panic("device:", dev,
-# "not prepared, and autoformat is not set.\n",
-# "Rerun with --reformat option to format ALL filesystems")
-
- return dev
-
-def if2addr(iface):
- """lookup IP address for an interface"""
- rc, out = run("/sbin/ifconfig", iface)
- if rc or not out:
- return None
- addr = string.split(out[1])[1]
- ip = string.split(addr, ':')[1]
- return ip
-
-def sys_get_elan_position_file():
- procfiles = ["/proc/elan/device0/position",
- "/proc/qsnet/elan4/device0/position",
- "/proc/qsnet/elan3/device0/position"]
- for p in procfiles:
- if os.access(p, os.R_OK):
- return p
- return ""
-
-def sys_get_local_nid(net_type, wildcard, cluster_id):
- """Return the local nid."""
- local = ""
- if sys_get_elan_position_file():
- local = sys_get_local_address('elan', '*', cluster_id)
- else:
- local = sys_get_local_address(net_type, wildcard, cluster_id)
- return local
-
-def sys_get_local_address(net_type, wildcard, cluster_id):
- """Return the local address for the network type."""
- local = ""
- if net_type in ('tcp',):
- if ':' in wildcard:
- iface, star = string.split(wildcard, ':')
- local = if2addr(iface)
- if not local:
- panic ("unable to determine ip for:", wildcard)
- else:
- host = socket.gethostname()
- local = socket.gethostbyname(host)
- elif net_type == 'elan':
- # awk '/NodeId/ { print $2 }' 'sys_get_elan_position_file()'
- f = sys_get_elan_position_file()
- if not f:
- panic ("unable to determine local Elan ID")
- try:
- fp = open(f, 'r')
- lines = fp.readlines()
- fp.close()
- for l in lines:
- a = string.split(l)
- if a[0] == 'NodeId':
- elan_id = a[1]
- break
- try:
- nid = my_int(cluster_id) + my_int(elan_id)
- local = "%d" % (nid)
- except ValueError, e:
- local = elan_id
- except IOError, e:
- log(e)
- elif net_type == 'gm':
- fixme("automatic local address for GM")
- elif net_type == 'scimac':
- scinode="/opt/scali/sbin/scinode"
- if os.path.exists(scinode):
- (rc,local) = run(scinode)
- else:
- panic (scinode, " not found on node with scimac networking")
- if rc:
- panic (scinode, " failed")
- local=string.rstrip(local[0])
-
- return local
-
-def mod_loaded(modname):
- """Check if a module is already loaded. Look in /proc/modules for it."""
- try:
- fp = open('/proc/modules')
- lines = fp.readlines()
- fp.close()
- # please forgive my tired fingers for this one
- ret = filter(lambda word, mod=modname: word == mod,
- map(lambda line: string.split(line)[0], lines))
- return ret
- except Exception, e:
- return 0
-
-# XXX: instead of device_list, ask for $name and see what we get
-def is_prepared(name):
- """Return true if a device exists for the name"""
- if config.lctl_dump:
- return 0
- if (config.noexec or config.record) and config.cleanup:
- return 1
- try:
- # expect this format:
- # 1 UP ldlm ldlm ldlm_UUID 2
- out = lctl.device_list()
- for s in out:
- if name == string.split(s)[3]:
- return 1
- except CommandError, e:
- e.dump()
- return 0
-
-def is_network_prepared():
- """If the any device exists, then assume that all networking
- has been configured"""
- out = lctl.device_list()
- return len(out) > 0
-
-def fs_is_mounted(path):
- """Return true if path is a mounted lustre filesystem"""
- try:
- fp = open('/proc/mounts')
- lines = fp.readlines()
- fp.close()
- for l in lines:
- a = string.split(l)
- if a[1] == path and a[2] == 'lustre_lite':
- return 1
- except IOError, e:
- log(e)
- return 0
-
-
-class kmod:
- """Manage kernel modules"""
- def __init__(self, lustre_dir, portals_dir):
- self.lustre_dir = lustre_dir
- self.portals_dir = portals_dir
- self.kmodule_list = []
-
- def add_portals_module(self, dev_dir, modname):
- """Append a module to list of modules to load."""
- self.kmodule_list.append((self.portals_dir, dev_dir, modname))
-
- def add_lustre_module(self, dev_dir, modname):
- """Append a module to list of modules to load."""
- self.kmodule_list.append((self.lustre_dir, dev_dir, modname))
-
- def load_module(self):
- """Load all the modules in the list in the order they appear."""
- for src_dir, dev_dir, mod in self.kmodule_list:
- if mod_loaded(mod) and not config.noexec:
- continue
- log ('loading module:', mod, 'srcdir', src_dir, 'devdir', dev_dir)
- if src_dir:
- module = find_module(src_dir, dev_dir, mod)
- if not module:
- panic('module not found:', mod)
- (rc, out) = run('/sbin/insmod', module)
- if rc:
- raise CommandError('insmod', out, rc)
- else:
- (rc, out) = run('/sbin/modprobe', mod)
- if rc:
- raise CommandError('modprobe', out, rc)
-
- def cleanup_module(self):
- """Unload the modules in the list in reverse order."""
- rev = self.kmodule_list
- rev.reverse()
- for src_dir, dev_dir, mod in rev:
- if not mod_loaded(mod) and not config.noexec:
- continue
- # debug hack
- if mod == 'portals' and config.dump:
- lctl.dump(config.dump)
- log('unloading module:', mod)
- (rc, out) = run('/sbin/rmmod', mod)
- if rc:
- log('! unable to unload module:', mod)
- logall(out)
-
-# ============================================================
-# Classes to prepare and cleanup the various objects
-#
-class Module:
- """ Base class for the rest of the modules. The default cleanup method is
- defined here, as well as some utilitiy funcs.
- """
- def __init__(self, module_name, db):
- self.db = db
- self.module_name = module_name
- self.name = self.db.getName()
- self.uuid = self.db.getUUID()
- self._server = None
- self._connected = 0
- self.kmod = kmod(config.lustre, config.portals)
-
- def info(self, *args):
- msg = string.join(map(str,args))
- print self.module_name + ":", self.name, self.uuid, msg
-
- def cleanup(self):
- """ default cleanup, used for most modules """
- self.info()
- try:
- lctl.cleanup(self.name, self.uuid, config.force)
- except CommandError, e:
- log(self.module_name, "cleanup failed: ", self.name)
- e.dump()
- cleanup_error(e.rc)
-
- def add_portals_module(self, dev_dir, modname):
- """Append a module to list of modules to load."""
- self.kmod.add_portals_module(dev_dir, modname)
-
- def add_lustre_module(self, dev_dir, modname):
- """Append a module to list of modules to load."""
- self.kmod.add_lustre_module(dev_dir, modname)
-
- def load_module(self):
- """Load all the modules in the list in the order they appear."""
- self.kmod.load_module()
-
- def cleanup_module(self):
- """Unload the modules in the list in reverse order."""
- if self.safe_to_clean():
- self.kmod.cleanup_module()
-
- def safe_to_clean(self):
- return 1
-
- def safe_to_clean_modules(self):
- return self.safe_to_clean()
-
-class Network(Module):
- def __init__(self,db):
- Module.__init__(self, 'NETWORK', db)
- self.net_type = self.db.get_val('nettype')
- self.nid = self.db.get_val('nid', '*')
- self.cluster_id = self.db.get_val('clusterid', "0")
- self.port = self.db.get_val_int('port', 0)
- self.send_mem = self.db.get_val_int('sendmem', DEFAULT_TCPBUF)
- self.recv_mem = self.db.get_val_int('recvmem', DEFAULT_TCPBUF)
- self.irq_affinity = self.db.get_val_int('irqaffinity', 0)
-
- if '*' in self.nid:
- self.nid = sys_get_local_nid(self.net_type, self.nid, self.cluster_id)
- if not self.nid:
- panic("unable to set nid for", self.net_type, self.nid, cluster_id)
- self.generic_nid = 1
- debug("nid:", self.nid)
- else:
- self.generic_nid = 0
-
- self.nid_uuid = self.nid_to_uuid(self.nid)
-
- self.hostaddr = self.db.get_val('hostaddr', self.nid)
- if '*' in self.hostaddr:
- self.hostaddr = sys_get_local_address(self.net_type, self.hostaddr, self.cluster_id)
- if not self.hostaddr:
- panic("unable to set hostaddr for", self.net_type, self.hostaddr, self.cluster_id)
- debug("hostaddr:", self.hostaddr)
-
- self.add_portals_module("libcfs", 'libcfs')
- self.add_portals_module("portals", 'portals')
- if node_needs_router():
- self.add_portals_module("router", 'kptlrouter')
- if self.net_type == 'tcp':
- self.add_portals_module("knals/socknal", 'ksocknal')
- if self.net_type == 'elan':
- self.add_portals_module("knals/qswnal", 'kqswnal')
- if self.net_type == 'gm':
- self.add_portals_module("knals/gmnal", 'kgmnal')
- if self.net_type == 'scimac':
- self.add_portals_module("knals/scimacnal", 'kscimacnal')
-
- def nid_to_uuid(self, nid):
- return "NID_%s_UUID" %(nid,)
-
- def prepare(self):
- if is_network_prepared():
- return
- self.info(self.net_type, self.nid, self.port)
- if not (config.record and self.generic_nid):
- lctl.network(self.net_type, self.nid)
- if self.net_type == 'tcp':
- sys_tweak_socknal()
- if self.net_type == 'elan':
- sys_optimize_elan()
- if self.port and node_is_router():
- run_one_acceptor(self.port)
- self.connect_peer_gateways()
-
- def connect_peer_gateways(self):
- for router in self.db.lookup_class('node'):
- if router.get_val_int('router', 0):
- for netuuid in router.get_networks():
- net = self.db.lookup(netuuid)
- gw = Network(net)
- if (gw.cluster_id == self.cluster_id and
- gw.net_type == self.net_type):
- if gw.nid != self.nid:
- lctl.connect(gw)
-
- def disconnect_peer_gateways(self):
- for router in self.db.lookup_class('node'):
- if router.get_val_int('router', 0):
- for netuuid in router.get_networks():
- net = self.db.lookup(netuuid)
- gw = Network(net)
- if (gw.cluster_id == self.cluster_id and
- gw.net_type == self.net_type):
- if gw.nid != self.nid:
- try:
- lctl.disconnect(gw)
- except CommandError, e:
- print "disconnect failed: ", self.name
- e.dump()
- cleanup_error(e.rc)
-
- def safe_to_clean(self):
- return not is_network_prepared()
-
- def cleanup(self):
- self.info(self.net_type, self.nid, self.port)
- if self.port:
- stop_acceptor(self.port)
- if node_is_router():
- self.disconnect_peer_gateways()
-
-class RouteTable(Module):
- def __init__(self,db):
- Module.__init__(self, 'ROUTES', db)
-
- def server_for_route(self, net_type, gw, gw_cluster_id, tgt_cluster_id,
- lo, hi):
- # only setup connections for tcp NALs
- srvdb = None
- if not net_type in ('tcp',):
- return None
-
- # connect to target if route is to single node and this node is the gw
- if lo == hi and local_interface(net_type, gw_cluster_id, gw):
- if not local_cluster(net_type, tgt_cluster_id):
- panic("target", lo, " not on the local cluster")
- srvdb = self.db.nid2server(lo, net_type, gw_cluster_id)
- # connect to gateway if this node is not the gw
- elif (local_cluster(net_type, gw_cluster_id)
- and not local_interface(net_type, gw_cluster_id, gw)):
- srvdb = self.db.nid2server(gw, net_type, gw_cluster_id)
- else:
- return None
-
- if not srvdb:
- panic("no server for nid", lo)
- return None
-
- return Network(srvdb)
-
- def prepare(self):
- if is_network_prepared():
- return
- self.info()
- for net_type, gw, gw_cluster_id, tgt_cluster_id, lo, hi in self.db.get_route_tbl():
- lctl.add_route(net_type, gw, lo, hi)
- srv = self.server_for_route(net_type, gw, gw_cluster_id, tgt_cluster_id, lo, hi)
- if srv:
- lctl.connect(srv)
-
- def safe_to_clean(self):
- return not is_network_prepared()
-
- def cleanup(self):
- if is_network_prepared():
- # the network is still being used, don't clean it up
- return
- for net_type, gw, gw_cluster_id, tgt_cluster_id, lo, hi in self.db.get_route_tbl():
- srv = self.server_for_route(net_type, gw, gw_cluster_id, tgt_cluster_id, lo, hi)
- if srv:
- try:
- lctl.disconnect(srv)
- except CommandError, e:
- print "disconnect failed: ", self.name
- e.dump()
- cleanup_error(e.rc)
-
- try:
- lctl.del_route(net_type, gw, lo, hi)
- except CommandError, e:
- print "del_route failed: ", self.name
- e.dump()
- cleanup_error(e.rc)
-
-class Management(Module):
- def __init__(self, db):
- Module.__init__(self, 'MGMT', db)
- self.add_lustre_module('lvfs', 'lvfs')
- self.add_lustre_module('obdclass', 'obdclass')
- self.add_lustre_module('ptlrpc', 'ptlrpc')
- self.add_lustre_module('mgmt', 'mgmt_svc')
-
- def prepare(self):
- if is_prepared(self.name):
- return
- self.info()
- lctl.newdev("mgmt", self.name, self.uuid)
-
- def safe_to_clean(self):
- return 1
-
- def cleanup(self):
- if is_prepared(self.name):
- Module.cleanup(self)
-
-# This is only needed to load the modules; the LDLM device
-# is now created automatically.
-class LDLM(Module):
- def __init__(self,db):
- Module.__init__(self, 'LDLM', db)
- self.add_lustre_module('lvfs', 'lvfs')
- self.add_lustre_module('obdclass', 'obdclass')
- self.add_lustre_module('ptlrpc', 'ptlrpc')
-
- def prepare(self):
- return
-
- def cleanup(self):
- return
-
-class LOV(Module):
- def __init__(self, db, uuid, fs_name, name_override = None, config_only = None):
- Module.__init__(self, 'LOV', db)
- if name_override != None:
- self.name = "lov_%s" % name_override
- self.add_lustre_module('lov', 'lov')
- self.mds_uuid = self.db.get_first_ref('mds')
- self.stripe_sz = self.db.get_val_int('stripesize', 65536)
- self.stripe_off = self.db.get_val_int('stripeoffset', 0)
- self.pattern = self.db.get_val_int('stripepattern', 0)
- self.devlist = self.db.get_refs('obd')
- self.stripe_cnt = self.db.get_val_int('stripecount', len(self.devlist))
- self.osclist = []
- self.desc_uuid = self.uuid
- self.uuid = generate_client_uuid(self.name)
- self.fs_name = fs_name
- if config_only:
- self.config_only = 1
- return
- self.config_only = None
- mds= self.db.lookup(self.mds_uuid)
- self.mds_name = mds.getName()
- for obd_uuid in self.devlist:
- obd = self.db.lookup(obd_uuid)
- osc = get_osc(obd, self.uuid, fs_name)
- if osc:
- self.osclist.append(osc)
- else:
- panic('osc not found:', obd_uuid)
-
- def prepare(self):
- if is_prepared(self.name):
- return
- if self.config_only:
- panic("Can't prepare config_only LOV ", self.name)
-
- for osc in self.osclist:
- try:
- # Only ignore connect failures with --force, which
- # isn't implemented here yet.
- osc.prepare(ignore_connect_failure=0)
- except CommandError, e:
- print "Error preparing OSC %s\n" % osc.uuid
- raise e
- self.info(self.mds_uuid, self.stripe_cnt, self.stripe_sz,
- self.stripe_off, self.pattern, self.devlist, self.mds_name)
- lctl.lov_setup(self.name, self.uuid,
- self.desc_uuid, self.mds_name, self.stripe_cnt,
- self.stripe_sz, self.stripe_off, self.pattern,
- string.join(self.devlist))
-
- def cleanup(self):
- if is_prepared(self.name):
- Module.cleanup(self)
- if self.config_only:
- panic("Can't clean up config_only LOV ", self.name)
- for osc in self.osclist:
- osc.cleanup()
-
- def load_module(self):
- if self.config_only:
- panic("Can't load modules for config_only LOV ", self.name)
- for osc in self.osclist:
- osc.load_module()
- break
- Module.load_module(self)
-
- def cleanup_module(self):
- if self.config_only:
- panic("Can't cleanup modules for config_only LOV ", self.name)
- Module.cleanup_module(self)
- for osc in self.osclist:
- osc.cleanup_module()
- break
-
-class MDSDEV(Module):
- def __init__(self,db):
- Module.__init__(self, 'MDSDEV', db)
- self.devpath = self.db.get_val('devpath','')
- self.size = self.db.get_val_int('devsize', 0)
- self.journal_size = self.db.get_val_int('journalsize', 0)
- self.fstype = self.db.get_val('fstype', '')
- self.nspath = self.db.get_val('nspath', '')
- self.mkfsoptions = self.db.get_val('mkfsoptions', '')
- # overwrite the orignal MDSDEV name and uuid with the MDS name and uuid
- target_uuid = self.db.get_first_ref('target')
- mds = self.db.lookup(target_uuid)
- self.name = mds.getName()
- self.filesystem_uuids = mds.get_refs('filesystem')
- # FIXME: if fstype not set, then determine based on kernel version
- self.format = self.db.get_val('autoformat', "no")
- if mds.get_val('failover', 0):
- self.failover_mds = 'f'
- else:
- self.failover_mds = 'n'
- active_uuid = get_active_target(mds)
- if not active_uuid:
- panic("No target device found:", target_uuid)
- if active_uuid == self.uuid:
- self.active = 1
- else:
- self.active = 0
- if self.active and config.group and config.group != mds.get_val('group'):
- self.active = 0
-
- self.inode_size = self.db.get_val_int('inodesize', 0)
- if self.inode_size == 0:
- # find the LOV for this MDS
- lovconfig_uuid = mds.get_first_ref('lovconfig')
- if not lovconfig_uuid:
- panic("No LOV config found for MDS ", mds.name)
- lovconfig = mds.lookup(lovconfig_uuid)
- lov_uuid = lovconfig.get_first_ref('lov')
- if not lov_uuid:
- panic("No LOV found for lovconfig ", lovconfig.name)
- lov = LOV(self.db.lookup(lov_uuid), lov_uuid, 'FS_name', config_only = 1)
-
- # default stripe count controls default inode_size
- stripe_count = lov.stripe_cnt
- if stripe_count > 77:
- self.inode_size = 4096
- elif stripe_count > 35:
- self.inode_size = 2048
- elif stripe_count > 13:
- self.inode_size = 1024
- elif stripe_count > 3:
- self.inode_size = 512
- else:
- self.inode_size = 256
-
- self.target_dev_uuid = self.uuid
- self.uuid = target_uuid
- # modules
- self.add_lustre_module('mdc', 'mdc')
- self.add_lustre_module('osc', 'osc')
- self.add_lustre_module('lov', 'lov')
- self.add_lustre_module('mds', 'mds')
- if self.fstype:
- self.add_lustre_module('lvfs', 'fsfilt_%s' % (self.fstype))
-
- def load_module(self):
- if self.active:
- Module.load_module(self)
-
- def prepare(self):
- if is_prepared(self.name):
- return
- if not self.active:
- debug(self.uuid, "not active")
- return
- if config.reformat:
- # run write_conf automatically, if --reformat used
- self.write_conf()
- self.info(self.devpath, self.fstype, self.size, self.format)
- run_acceptors()
- # never reformat here
- blkdev = block_dev(self.devpath, self.size, self.fstype, 0,
- self.format, self.journal_size, self.inode_size,
- self.mkfsoptions)
- if not is_prepared('MDT'):
- lctl.newdev("mdt", 'MDT', 'MDT_UUID', setup ="")
- try:
- lctl.newdev("mds", self.name, self.uuid,
- setup ="%s %s %s" %(blkdev, self.fstype, self.name))
- except CommandError, e:
- if e.rc == 2:
- panic("MDS is missing the config log. Need to run " +
- "lconf --write_conf.")
- else:
- raise e
-
- def write_conf(self):
- if is_prepared(self.name):
- return
- self.info(self.devpath, self.fstype, self.format)
- blkdev = block_dev(self.devpath, self.size, self.fstype,
- config.reformat, self.format, self.journal_size,
- self.inode_size, self.mkfsoptions)
- lctl.newdev("mds", self.name, self.uuid,
- setup ="%s %s" %(blkdev, self.fstype))
-
- # record logs for the MDS lov
- for uuid in self.filesystem_uuids:
- log("recording clients for filesystem:", uuid)
- fs = self.db.lookup(uuid)
- obd_uuid = fs.get_first_ref('obd')
- client_uuid = generate_client_uuid(self.name)
- client = VOSC(self.db.lookup(obd_uuid), client_uuid, self.name,
- self.name)
- config.record = 1
- lctl.clear_log(self.name, self.name)
- lctl.record(self.name, self.name)
- client.prepare()
- lctl.mount_option(self.name, client.get_name(), "")
- lctl.end_record()
-
- config.cleanup = 1
- lctl.clear_log(self.name, self.name + '-clean')
- lctl.record(self.name, self.name + '-clean')
- client.cleanup()
- lctl.del_mount_option(self.name)
- lctl.end_record()
- config.cleanup = 0
- config.record = 0
-
- # record logs for each client
- if config.ldapurl:
- config_options = "--ldapurl " + config.ldapurl + " --config " + config.config
- else:
- config_options = CONFIG_FILE
-
- for node_db in self.db.lookup_class('node'):
- client_name = node_db.getName()
- for prof_uuid in node_db.get_refs('profile'):
- prof_db = node_db.lookup(prof_uuid)
- # refactor this into a funtion to test "clientness"
- # of a node.
- for ref_class, ref_uuid in prof_db.get_all_refs():
- if ref_class in ('mountpoint','echoclient'):
- debug("recording", client_name)
- old_noexec = config.noexec
- config.noexec = 0
- noexec_opt = ('', '-n')
- ret, out = run (sys.argv[0],
- noexec_opt[old_noexec == 1],
- " -v --record --nomod",
- "--record_log", client_name,
- "--record_device", self.name,
- "--node", client_name,
- config_options)
- if config.verbose:
- for s in out: log("record> ", string.strip(s))
- ret, out = run (sys.argv[0],
- noexec_opt[old_noexec == 1],
- "--cleanup -v --record --nomod",
- "--record_log", client_name + "-clean",
- "--record_device", self.name,
- "--node", client_name,
- config_options)
- if config.verbose:
- for s in out: log("record> ", string.strip(s))
- config.noexec = old_noexec
- try:
- lctl.cleanup(self.name, self.uuid, 0, 0)
- except CommandError, e:
- log(self.module_name, "cleanup failed: ", self.name)
- e.dump()
- cleanup_error(e.rc)
- Module.cleanup(self)
- clean_loop(self.devpath)
-
- def msd_remaining(self):
- out = lctl.device_list()
- for s in out:
- if string.split(s)[2] in ('mds',):
- return 1
-
- def safe_to_clean(self):
- return self.active
-
- def safe_to_clean_modules(self):
- return not self.msd_remaining()
-
- def cleanup(self):
- if not self.active:
- debug(self.uuid, "not active")
- return
- self.info()
- if is_prepared(self.name):
- try:
- lctl.cleanup(self.name, self.uuid, config.force,
- config.failover)
- except CommandError, e:
- log(self.module_name, "cleanup failed: ", self.name)
- e.dump()
- cleanup_error(e.rc)
- Module.cleanup(self)
- if not self.msd_remaining() and is_prepared('MDT'):
- try:
- lctl.cleanup("MDT", "MDT_UUID", config.force,
- config.failover)
- except CommandError, e:
- print "cleanup failed: ", self.name
- e.dump()
- cleanup_error(e.rc)
- clean_loop(self.devpath)
-
-class OSD(Module):
- def __init__(self, db):
- Module.__init__(self, 'OSD', db)
- self.osdtype = self.db.get_val('osdtype')
- self.devpath = self.db.get_val('devpath', '')
- self.size = self.db.get_val_int('devsize', 0)
- self.journal_size = self.db.get_val_int('journalsize', 0)
- self.inode_size = self.db.get_val_int('inodesize', 0)
- self.mkfsoptions = self.db.get_val('mkfsoptions', '')
- self.fstype = self.db.get_val('fstype', '')
- self.nspath = self.db.get_val('nspath', '')
- target_uuid = self.db.get_first_ref('target')
- ost = self.db.lookup(target_uuid)
- self.name = ost.getName()
- self.format = self.db.get_val('autoformat', 'yes')
- if ost.get_val('failover', 0):
- self.failover_ost = 'f'
- else:
- self.failover_ost = 'n'
-
- active_uuid = get_active_target(ost)
- if not active_uuid:
- panic("No target device found:", target_uuid)
- if active_uuid == self.uuid:
- self.active = 1
- else:
- self.active = 0
- if self.active and config.group and config.group != ost.get_val('group'):
- self.active = 0
-
- self.target_dev_uuid = self.uuid
- self.uuid = target_uuid
- # modules
- self.add_lustre_module('ost', 'ost')
- # FIXME: should we default to ext3 here?
- if self.fstype:
- self.add_lustre_module('lvfs' , 'fsfilt_%s' % (self.fstype))
- self.add_lustre_module(self.osdtype, self.osdtype)
-
- def load_module(self):
- if self.active:
- Module.load_module(self)
-
- # need to check /proc/mounts and /etc/mtab before
- # formatting anything.
- # FIXME: check if device is already formatted.
- def prepare(self):
- if is_prepared(self.name):
- return
- if not self.active:
- debug(self.uuid, "not active")
- return
- self.info(self.osdtype, self.devpath, self.size, self.fstype,
- self.format, self.journal_size, self.inode_size)
- run_acceptors()
- if self.osdtype == 'obdecho':
- blkdev = ''
- else:
- blkdev = block_dev(self.devpath, self.size, self.fstype,
- config.reformat, self.format, self.journal_size,
- self.inode_size, self.mkfsoptions)
- lctl.newdev(self.osdtype, self.name, self.uuid,
- setup ="%s %s %s" %(blkdev, self.fstype,
- self.failover_ost))
- if not is_prepared('OSS'):
- lctl.newdev("ost", 'OSS', 'OSS_UUID', setup ="")
-
- def osd_remaining(self):
- out = lctl.device_list()
- for s in out:
- if string.split(s)[2] in ('obdfilter', 'obdecho'):
- return 1
-
- def safe_to_clean(self):
- return self.active
-
- def safe_to_clean_modules(self):
- return not self.osd_remaining()
-
- def cleanup(self):
- if not self.active:
- debug(self.uuid, "not active")
- return
- if is_prepared(self.name):
- self.info()
- try:
- lctl.cleanup(self.name, self.uuid, config.force,
- config.failover)
- except CommandError, e:
- log(self.module_name, "cleanup failed: ", self.name)
- e.dump()
- cleanup_error(e.rc)
- if not self.osd_remaining() and is_prepared('OSS'):
- try:
- lctl.cleanup("OSS", "OSS_UUID", config.force,
- config.failover)
- except CommandError, e:
- print "cleanup failed: ", self.name
- e.dump()
- cleanup_error(e.rc)
- if not self.osdtype == 'obdecho':
- clean_loop(self.devpath)
-
-def mgmt_uuid_for_fs(mtpt_name):
- if not mtpt_name:
- return ''
- mtpt_db = toplevel.lookup_name(mtpt_name)
- fs_uuid = mtpt_db.get_first_ref('filesystem')
- fs = toplevel.lookup(fs_uuid)
- if not fs:
- return ''
- return fs.get_first_ref('mgmt')
-
-# Generic client module, used by OSC and MDC
-class Client(Module):
- def __init__(self, tgtdb, uuid, module, fs_name, self_name=None,
- module_dir=None):
- self.target_name = tgtdb.getName()
- self.target_uuid = tgtdb.getUUID()
- self.db = tgtdb
-
- self.tgt_dev_uuid = get_active_target(tgtdb)
- if not self.tgt_dev_uuid:
- panic("No target device found for target:", self.target_name)
-
- self.kmod = kmod(config.lustre, config.portals)
- self._server = None
- self._connected = 0
-
- self.module = module
- self.module_name = string.upper(module)
- if not self_name:
- self.name = '%s_%s_%s_%s' % (self.module_name, socket.gethostname(),
- self.target_name, fs_name)
- else:
- self.name = self_name
- self.uuid = uuid
- self.lookup_server(self.tgt_dev_uuid)
- mgmt_uuid = mgmt_uuid_for_fs(fs_name)
- if mgmt_uuid:
- self.mgmt_name = mgmtcli_name_for_uuid(mgmt_uuid)
- else:
- self.mgmt_name = ''
- self.fs_name = fs_name
- if not module_dir:
- module_dir = module
- self.add_lustre_module(module_dir, module)
-
- def lookup_server(self, srv_uuid):
- """ Lookup a server's network information """
- self._server_nets = get_ost_net(self.db, srv_uuid)
- if len(self._server_nets) == 0:
- panic ("Unable to find a server for:", srv_uuid)
-
- def get_servers(self):
- return self._server_nets
-
- def prepare(self, ignore_connect_failure = 0):
- self.info(self.target_uuid)
- if is_prepared(self.name):
- self.cleanup()
- try:
- srv = choose_local_server(self.get_servers())
- if srv:
- lctl.connect(srv)
- else:
- routes = find_route(self.get_servers())
- if len(routes) == 0:
- panic ("no route to", self.target_uuid)
- for (srv, r) in routes:
- lctl.add_route_host(r[0], srv.nid_uuid, r[1], r[3])
- except CommandError, e:
- if not ignore_connect_failure:
- raise e
- if srv:
- if self.target_uuid in config.inactive and self.permits_inactive():
- debug("%s inactive" % self.target_uuid)
- inactive_p = "inactive"
- else:
- debug("%s active" % self.target_uuid)
- inactive_p = ""
- lctl.newdev(self.module, self.name, self.uuid,
- setup ="%s %s %s %s" % (self.target_uuid, srv.nid_uuid,
- inactive_p, self.mgmt_name))
-
- def cleanup(self):
- if is_prepared(self.name):
- Module.cleanup(self)
- try:
- srv = choose_local_server(self.get_servers())
- if srv:
- lctl.disconnect(srv)
- else:
- for (srv, r) in find_route(self.get_servers()):
- lctl.del_route_host(r[0], srv.nid_uuid, r[1], r[3])
- except CommandError, e:
- log(self.module_name, "cleanup failed: ", self.name)
- e.dump()
- cleanup_error(e.rc)
-
-
-class MDC(Client):
- def __init__(self, db, uuid, fs_name):
- Client.__init__(self, db, uuid, 'mdc', fs_name)
-
- def permits_inactive(self):
- return 0
-
-class OSC(Client):
- def __init__(self, db, uuid, fs_name):
- Client.__init__(self, db, uuid, 'osc', fs_name)
-
- def permits_inactive(self):
- return 1
-
-def mgmtcli_name_for_uuid(uuid):
- return 'MGMTCLI_%s' % uuid
-
-class ManagementClient(Client):
- def __init__(self, db, uuid):
- Client.__init__(self, db, uuid, 'mgmt_cli', '',
- self_name = mgmtcli_name_for_uuid(db.getUUID()),
- module_dir = 'mgmt')
-
-class COBD(Module):
- def __init__(self, db):
- Module.__init__(self, 'COBD', db)
- self.real_uuid = self.db.get_first_ref('realobd')
- self.cache_uuid = self.db.get_first_ref('cacheobd')
- self.add_lustre_module('cobd' , 'cobd')
-
- # need to check /proc/mounts and /etc/mtab before
- # formatting anything.
- # FIXME: check if device is already formatted.
- def prepare(self):
- if is_prepared(self.name):
- return
- self.info(self.real_uuid, self.cache_uuid)
- lctl.newdev("cobd", self.name, self.uuid,
- setup ="%s %s" %(self.real_uuid, self.cache_uuid))
-
-
-# virtual interface for OSC and LOV
-class VOSC(Module):
- def __init__(self, db, uuid, fs_name, name_override = None):
- Module.__init__(self, 'VOSC', db)
- if db.get_class() == 'lov':
- self.osc = LOV(db, uuid, fs_name, name_override)
- else:
- self.osc = get_osc(db, uuid, fs_name)
- def get_uuid(self):
- return self.osc.uuid
- def get_name(self):
- return self.osc.name
- def prepare(self):
- self.osc.prepare()
- def cleanup(self):
- self.osc.cleanup()
- def load_module(self):
- self.osc.load_module()
- def cleanup_module(self):
- self.osc.cleanup_module()
-
-
-class ECHO_CLIENT(Module):
- def __init__(self,db):
- Module.__init__(self, 'ECHO_CLIENT', db)
- self.add_lustre_module('obdecho', 'obdecho')
- self.obd_uuid = self.db.get_first_ref('obd')
- obd = self.db.lookup(self.obd_uuid)
- self.uuid = generate_client_uuid(self.name)
- self.osc = VOSC(obd, self.uuid, self.name)
-
- def prepare(self):
- if is_prepared(self.name):
- return
- run_acceptors()
- self.osc.prepare() # XXX This is so cheating. -p
- self.info(self.obd_uuid)
-
- lctl.newdev("echo_client", self.name, self.uuid,
- setup = self.osc.get_name())
-
- def cleanup(self):
- if is_prepared(self.name):
- Module.cleanup(self)
- self.osc.cleanup()
-
- def load_module(self):
- self.osc.load_module()
- Module.load_module(self)
-
- def cleanup_module(self):
- Module.cleanup_module(self)
- self.osc.cleanup_module()
-
-
-def generate_client_uuid(name):
- client_uuid = '%05x_%.19s_%05x%05x' % (int(random.random() * 1048576),
- name,
- int(random.random() * 1048576),
- int(random.random() * 1048576))
- return client_uuid[:36]
-
-
-class Mountpoint(Module):
- def __init__(self,db):
- Module.__init__(self, 'MTPT', db)
- self.path = self.db.get_val('path')
- self.fs_uuid = self.db.get_first_ref('filesystem')
- fs = self.db.lookup(self.fs_uuid)
- self.mds_uuid = fs.get_first_ref('mds')
- self.obd_uuid = fs.get_first_ref('obd')
- self.mgmt_uuid = fs.get_first_ref('mgmt')
- obd = self.db.lookup(self.obd_uuid)
- client_uuid = generate_client_uuid(self.name)
- self.vosc = VOSC(obd, client_uuid, self.name)
- self.mdc = get_mdc(db, client_uuid, self.name, self.mds_uuid)
-
- self.add_lustre_module('mdc', 'mdc')
- self.add_lustre_module('llite', 'llite')
- if self.mgmt_uuid:
- self.mgmtcli = ManagementClient(db.lookup(self.mgmt_uuid),
- client_uuid)
- else:
- self.mgmtcli = None
-
- def prepare(self):
- if fs_is_mounted(self.path):
- log(self.path, "already mounted.")
- return
- run_acceptors()
- if self.mgmtcli:
- self.mgmtcli.prepare()
- self.vosc.prepare()
- self.mdc.prepare()
- mdc_name = self.mdc.name
-
- self.info(self.path, self.mds_uuid, self.obd_uuid)
- if config.record or config.lctl_dump:
- lctl.mount_option(local_node_name, self.vosc.get_name(), mdc_name)
- return
- cmd = "mount -t lustre_lite -o osc=%s,mdc=%s %s %s" % \
- (self.vosc.get_name(), mdc_name, config.config, self.path)
- run("mkdir", self.path)
- ret, val = run(cmd)
- if ret:
- self.mdc.cleanup()
- self.vosc.cleanup()
- panic("mount failed:", self.path, ":", string.join(val))
-
- def cleanup(self):
- self.info(self.path, self.mds_uuid,self.obd_uuid)
-
- if config.record or config.lctl_dump:
- lctl.del_mount_option(local_node_name)
- else:
- if fs_is_mounted(self.path):
- if config.force:
- (rc, out) = run("umount", "-f", self.path)
- else:
- (rc, out) = run("umount", self.path)
- if rc:
- raise CommandError('umount', out, rc)
-
- if fs_is_mounted(self.path):
- panic("fs is still mounted:", self.path)
-
- self.mdc.cleanup()
- self.vosc.cleanup()
- if self.mgmtcli:
- self.mgmtcli.cleanup()
-
- def load_module(self):
- if self.mgmtcli:
- self.mgmtcli.load_module()
- self.vosc.load_module()
- Module.load_module(self)
-
- def cleanup_module(self):
- Module.cleanup_module(self)
- self.vosc.cleanup_module()
- if self.mgmtcli:
- self.mgmtcli.cleanup_module()
-
-
-# ============================================================
-# misc query functions
-
-def get_ost_net(self, osd_uuid):
- srv_list = []
- if not osd_uuid:
- return srv_list
- osd = self.lookup(osd_uuid)
- node_uuid = osd.get_first_ref('node')
- node = self.lookup(node_uuid)
- if not node:
- panic("unable to find node for osd_uuid:", osd_uuid,
- " node_ref:", node_uuid)
- for net_uuid in node.get_networks():
- db = node.lookup(net_uuid)
- srv_list.append(Network(db))
- return srv_list
-
-
-# the order of iniitailization is based on level.
-def getServiceLevel(self):
- type = self.get_class()
- ret=0;
- if type in ('network',):
- ret = 5
- elif type in ('routetbl',):
- ret = 6
- elif type in ('ldlm',):
- ret = 20
- elif type in ('mgmt',):
- ret = 25
- elif type in ('osd', 'cobd'):
- ret = 30
- elif type in ('mdsdev',):
- ret = 40
- elif type in ('mountpoint', 'echoclient'):
- ret = 70
- else:
- panic("Unknown type: ", type)
-
- if ret < config.minlevel or ret > config.maxlevel:
- ret = 0
- return ret
-
-#
-# return list of services in a profile. list is a list of tuples
-# [(level, db_object),]
-def getServices(self):
- list = []
- for ref_class, ref_uuid in self.get_all_refs():
- servdb = self.lookup(ref_uuid)
- if servdb:
- level = getServiceLevel(servdb)
- if level > 0:
- list.append((level, servdb))
- else:
- panic('service not found: ' + ref_uuid)
-
- list.sort()
- return list
-
-
-############################################################
-# MDC UUID hack -
-# FIXME: clean this mess up!
-#
-# OSC is no longer in the xml, so we have to fake it.
-# this is getting ugly and begging for another refactoring
-def get_osc(ost_db, uuid, fs_name):
- osc = OSC(ost_db, uuid, fs_name)
- return osc
-
-def get_mdc(db, uuid, fs_name, mds_uuid):
- mds_db = db.lookup(mds_uuid);
- if not mds_db:
- panic("no mds:", mds_uuid)
- mdc = MDC(mds_db, uuid, fs_name)
- return mdc
-
-############################################################
-# routing ("rooting")
-
-# list of (nettype, cluster_id, nid)
-local_clusters = []
-
-def find_local_clusters(node_db):
- global local_clusters
- for netuuid in node_db.get_networks():
- net = node_db.lookup(netuuid)
- srv = Network(net)
- debug("add_local", netuuid)
- local_clusters.append((srv.net_type, srv.cluster_id, srv.nid))
- if srv.port > 0:
- if acceptors.has_key(srv.port):
- panic("duplicate port:", srv.port)
- acceptors[srv.port] = AcceptorHandler(srv.port, srv.net_type,
- srv.send_mem, srv.recv_mem,
- srv.irq_affinity)
-
-# This node is a gateway.
-is_router = 0
-def node_is_router():
- return is_router
-
-# If there are any routers found in the config, then this will be true
-# and all nodes will load kptlrouter.
-needs_router = 0
-def node_needs_router():
- return needs_router or is_router
-
-# list of (nettype, gw, tgt_cluster_id, lo, hi)
-# Currently, these local routes are only added to kptlrouter route
-# table if they are needed to connect to a specific server. This
-# should be changed so all available routes are loaded, and the
-# ptlrouter can make all the decisions.
-local_routes = []
-
-def find_local_routes(lustre):
- """ Scan the lustre config looking for routers . Build list of
- routes. """
- global local_routes, needs_router
- local_routes = []
- list = lustre.lookup_class('node')
- for router in list:
- if router.get_val_int('router', 0):
- needs_router = 1
- for (local_type, local_cluster_id, local_nid) in local_clusters:
- gw = None
- for netuuid in router.get_networks():
- db = router.lookup(netuuid)
- if (local_type == db.get_val('nettype') and
- local_cluster_id == db.get_val('clusterid')):
- gw = db.get_val('nid')
- break
- if gw:
- debug("find_local_routes: gw is", gw)
- for route in router.get_local_routes(local_type, gw):
- local_routes.append(route)
- debug("find_local_routes:", local_routes)
-
-
-def choose_local_server(srv_list):
- for srv in srv_list:
- if local_cluster(srv.net_type, srv.cluster_id):
- return srv
-
-def local_cluster(net_type, cluster_id):
- for cluster in local_clusters:
- if net_type == cluster[0] and cluster_id == cluster[1]:
- return 1
- return 0
-
-def local_interface(net_type, cluster_id, nid):
- for cluster in local_clusters:
- if (net_type == cluster[0] and cluster_id == cluster[1]
- and nid == cluster[2]):
- return 1
- return 0
-
-def find_route(srv_list):
- result = []
- frm_type = local_clusters[0][0]
- for srv in srv_list:
- debug("find_route: srv:", srv.nid, "type: ", srv.net_type)
- to_type = srv.net_type
- to = srv.nid
- cluster_id = srv.cluster_id
- debug ('looking for route to', to_type, to)
- for r in local_routes:
- debug("find_route: ", r)
- if (r[3] <= to and to <= r[4]) and cluster_id == r[2]:
- result.append((srv, r))
- return result
-
-def get_active_target(db):
- target_uuid = db.getUUID()
- target_name = db.getName()
- node_name = get_select(target_name)
- if node_name:
- tgt_dev_uuid = db.get_node_tgt_dev(node_name, target_uuid)
- else:
- tgt_dev_uuid = db.get_first_ref('active')
- return tgt_dev_uuid
-
-def get_server_by_nid_uuid(db, nid_uuid):
- for n in db.lookup_class("network"):
- net = Network(n)
- if net.nid_uuid == nid_uuid:
- return net
-
-
-############################################################
-# lconf level logic
-# Start a service.
-def newService(db):
- type = db.get_class()
- debug('Service:', type, db.getName(), db.getUUID())
- n = None
- if type == 'ldlm':
- n = LDLM(db)
- elif type == 'lov':
- n = LOV(db, "YOU_SHOULD_NEVER_SEE_THIS_UUID")
- elif type == 'network':
- n = Network(db)
- elif type == 'routetbl':
- n = RouteTable(db)
- elif type == 'osd':
- n = OSD(db)
- elif type == 'cobd':
- n = COBD(db)
- elif type == 'mdsdev':
- n = MDSDEV(db)
- elif type == 'mountpoint':
- n = Mountpoint(db)
- elif type == 'echoclient':
- n = ECHO_CLIENT(db)
- elif type == 'mgmt':
- n = Management(db)
- else:
- panic ("unknown service type:", type)
- return n
-
-#
-# Prepare the system to run lustre using a particular profile
-# in a the configuration.
-# * load & the modules
-# * setup networking for the current node
-# * make sure partitions are in place and prepared
-# * initialize devices with lctl
-# Levels is important, and needs to be enforced.
-def for_each_profile(db, prof_list, operation):
- for prof_uuid in prof_list:
- prof_db = db.lookup(prof_uuid)
- if not prof_db:
- panic("profile:", profile, "not found.")
- services = getServices(prof_db)
- operation(services)
-
-def doWriteconf(services):
- if config.nosetup:
- return
- for s in services:
- if s[1].get_class() == 'mdsdev':
- n = newService(s[1])
- n.write_conf()
-
-def doSetup(services):
- if config.nosetup:
- return
- for s in services:
- n = newService(s[1])
- n.prepare()
-
-def doModules(services):
- if config.nomod:
- return
- for s in services:
- n = newService(s[1])
- n.load_module()
-
-def doCleanup(services):
- if config.nosetup:
- return
- services.reverse()
- for s in services:
- n = newService(s[1])
- if n.safe_to_clean():
- n.cleanup()
-
-def doUnloadModules(services):
- if config.nomod:
- return
- services.reverse()
- for s in services:
- n = newService(s[1])
- if n.safe_to_clean_modules():
- n.cleanup_module()
-
-#
-# Load profile for
-def doHost(lustreDB, hosts):
- global is_router, local_node_name
- node_db = None
- for h in hosts:
- node_db = lustreDB.lookup_name(h, 'node')
- if node_db:
- break
- if not node_db:
- panic('No host entry found.')
-
- local_node_name = node_db.get_val('name', 0)
- is_router = node_db.get_val_int('router', 0)
- lustre_upcall = node_db.get_val('lustreUpcall', '')
- portals_upcall = node_db.get_val('portalsUpcall', '')
- timeout = node_db.get_val_int('timeout', 0)
- ptldebug = node_db.get_val('ptldebug', '')
- subsystem = node_db.get_val('subsystem', '')
-
- find_local_clusters(node_db)
- if not is_router:
- find_local_routes(lustreDB)
-
- # Two step process: (1) load modules, (2) setup lustre
- # if not cleaning, load modules first.
- prof_list = node_db.get_refs('profile')
-
- if config.write_conf:
- for_each_profile(node_db, prof_list, doModules)
- sys_make_devices()
- for_each_profile(node_db, prof_list, doWriteconf)
- for_each_profile(node_db, prof_list, doUnloadModules)
-
- elif config.recover:
- if not (config.tgt_uuid and config.client_uuid and config.conn_uuid):
- raise Lustre.LconfError( "--recovery requires --tgt_uuid <UUID> " +
- "--client_uuid <UUID> --conn_uuid <UUID>")
- doRecovery(lustreDB, lctl, config.tgt_uuid, config.client_uuid,
- config.conn_uuid)
- elif config.cleanup:
- if config.force:
- # the command line can override this value
- timeout = 5
- # ugly hack, only need to run lctl commands for --dump
- if config.lctl_dump or config.record:
- for_each_profile(node_db, prof_list, doCleanup)
- return
-
- sys_set_timeout(timeout)
- sys_set_ptldebug(ptldebug)
- sys_set_subsystem(subsystem)
- sys_set_lustre_upcall(lustre_upcall)
- sys_set_portals_upcall(portals_upcall)
-
- for_each_profile(node_db, prof_list, doCleanup)
- for_each_profile(node_db, prof_list, doUnloadModules)
-
- else:
- # ugly hack, only need to run lctl commands for --dump
- if config.lctl_dump or config.record:
- sys_set_timeout(timeout)
- sys_set_lustre_upcall(lustre_upcall)
- for_each_profile(node_db, prof_list, doSetup)
- return
-
- sys_make_devices()
- sys_set_netmem_max('/proc/sys/net/core/rmem_max', MAXTCPBUF)
- sys_set_netmem_max('/proc/sys/net/core/wmem_max', MAXTCPBUF)
-
- for_each_profile(node_db, prof_list, doModules)
-
- sys_set_debug_path()
- sys_set_ptldebug(ptldebug)
- sys_set_subsystem(subsystem)
- script = config.gdb_script
- run(lctl.lctl, ' modules >', script)
- if config.gdb:
- log ("The GDB module script is in", script)
- # pause, so user has time to break and
- # load the script
- time.sleep(5)
- sys_set_timeout(timeout)
- sys_set_lustre_upcall(lustre_upcall)
- sys_set_portals_upcall(portals_upcall)
-
- for_each_profile(node_db, prof_list, doSetup)
-
-def doRecovery(db, lctl, tgt_uuid, client_uuid, nid_uuid):
- tgt = db.lookup(tgt_uuid)
- if not tgt:
- raise Lustre.LconfError("doRecovery: "+ tgt_uuid +" not found.")
- new_uuid = get_active_target(tgt)
- if not new_uuid:
- raise Lustre.LconfError("doRecovery: no active target found for: " +
- tgt_uuid)
- net = choose_local_server(get_ost_net(db, new_uuid))
- if not net:
- raise Lustre.LconfError("Unable to find a connection to:" + new_uuid)
-
- log("Reconnecting", tgt_uuid, " to ", net.nid_uuid);
- try:
- oldnet = get_server_by_nid_uuid(db, nid_uuid)
- if oldnet:
- lctl.disconnect(oldnet)
- except CommandError, e:
- log("recover: disconnect", nid_uuid, "failed: ")
- e.dump()
-
- try:
- lctl.connect(net)
- except CommandError, e:
- log("recover: connect failed")
- e.dump()
-
- lctl.recover(client_uuid, net.nid_uuid)
-
-
-def setupModulePath(cmd, portals_dir = PORTALS_DIR):
- base = os.path.dirname(cmd)
- if development_mode():
- if not config.lustre:
- debug('using objdir module paths')
- config.lustre = (os.path.join(base, ".."))
- # normalize the portals dir, using command line arg if set
- if config.portals:
- portals_dir = config.portals
- dir = os.path.join(config.lustre, portals_dir)
- config.portals = dir
- debug('config.portals', config.portals)
- elif config.lustre and config.portals:
- # production mode
- # if --lustre and --portals, normalize portals
- # can ignore POTRALS_DIR here, since it is probly useless here
- config.portals = os.path.join(config.lustre, config.portals)
- debug('config.portals B', config.portals)
-
-def sysctl(path, val):
- debug("+ sysctl", path, val)
- if config.noexec:
- return
- try:
- fp = open(os.path.join('/proc/sys', path), 'w')
- fp.write(str(val))
- fp.close()
- except IOError, e:
- panic(str(e))
-
-
-def sys_set_debug_path():
- sysctl('portals/debug_path', config.debug_path)
-
-def sys_set_lustre_upcall(upcall):
- # the command overrides the value in the node config
- if config.lustre_upcall:
- upcall = config.lustre_upcall
- elif config.upcall:
- upcall = config.upcall
- if upcall:
- lctl.set_lustre_upcall(upcall)
-
-def sys_set_portals_upcall(upcall):
- # the command overrides the value in the node config
- if config.portals_upcall:
- upcall = config.portals_upcall
- elif config.upcall:
- upcall = config.upcall
- if upcall:
- sysctl('portals/upcall', upcall)
-
-def sys_set_timeout(timeout):
- # the command overrides the value in the node config
- if config.timeout and config.timeout > 0:
- timeout = config.timeout
- if timeout != None and timeout > 0:
- lctl.set_timeout(timeout)
-
-def sys_tweak_socknal ():
- if config.single_socket:
- sysctl("socknal/typed", 0)
-
-def sys_optimize_elan ():
- procfiles = ["/proc/elan/config/eventint_punt_loops",
- "/proc/qsnet/elan3/config/eventint_punt_loops",
- "/proc/qsnet/elan4/config/elan4_mainint_punt_loops"]
- for p in procfiles:
- if os.access(p, os.R_OK):
- run ("echo 0 > " + p)
-
-def sys_set_ptldebug(ptldebug):
- if config.ptldebug:
- ptldebug = config.ptldebug
- if ptldebug:
- try:
- val = eval(ptldebug, ptldebug_names)
- val = "0x%x" % (val)
- sysctl('portals/debug', val)
- except NameError, e:
- panic(str(e))
-
-def sys_set_subsystem(subsystem):
- if config.subsystem:
- subsystem = config.subsystem
- if subsystem:
- try:
- val = eval(subsystem, subsystem_names)
- val = "0x%x" % (val)
- sysctl('portals/subsystem_debug', val)
- except NameError, e:
- panic(str(e))
-
-def sys_set_netmem_max(path, max):
- debug("setting", path, "to at least", max)
- if config.noexec:
- return
- fp = open(path)
- str = fp.readline()
- fp.close()
- cur = int(str)
- if max > cur:
- fp = open(path, 'w')
- fp.write('%d\n' %(max))
- fp.close()
-
-
-def sys_make_devices():
- if not os.access('/dev/portals', os.R_OK):
- run('mknod /dev/portals c 10 240')
- if not os.access('/dev/obd', os.R_OK):
- run('mknod /dev/obd c 10 241')
-
-
-# Add dir to the global PATH, if not already there.
-def add_to_path(new_dir):
- syspath = string.split(os.environ['PATH'], ':')
- if new_dir in syspath:
- return
- os.environ['PATH'] = os.environ['PATH'] + ':' + new_dir
-
-def default_debug_path():
- path = '/tmp/lustre-log'
- if os.path.isdir('/r'):
- return '/r' + path
- else:
- return path
-
-def default_gdb_script():
- script = '/tmp/ogdb'
- if os.path.isdir('/r'):
- return '/r' + script
- else:
- return script
-
-
-DEFAULT_PATH = ('/sbin', '/usr/sbin', '/bin', '/usr/bin')
-# ensure basic elements are in the system path
-def sanitise_path():
- for dir in DEFAULT_PATH:
- add_to_path(dir)
-
-# global hack for the --select handling
-tgt_select = {}
-def init_select(args):
- # args = [service=nodeA,service2=nodeB service3=nodeC]
- global tgt_select
- for arg in args:
- list = string.split(arg, ',')
- for entry in list:
- srv, node = string.split(entry, '=')
- tgt_select[srv] = node
-
-def get_select(srv):
- if tgt_select.has_key(srv):
- return tgt_select[srv]
- return None
-
-
-FLAG = Lustre.Options.FLAG
-PARAM = Lustre.Options.PARAM
-INTPARAM = Lustre.Options.INTPARAM
-PARAMLIST = Lustre.Options.PARAMLIST
-lconf_options = [
- ('verbose,v', "Print system commands as they are run"),
- ('ldapurl',"LDAP server URL, eg. ldap://localhost", PARAM),
- ('config', "Cluster config name used for LDAP query", PARAM),
- ('select', "service=nodeA,service2=nodeB ", PARAMLIST),
- ('node', "Load config for <nodename>", PARAM),
- ('cleanup,d', "Cleans up config. (Shutdown)"),
- ('force,f', "Forced unmounting and/or obd detach during cleanup",
- FLAG, 0),
- ('single_socket', "socknal option: only use one socket instead of bundle",
- FLAG, 0),
- ('failover',"""Used to shut down without saving state.
- This will allow this node to "give up" a service to a
- another node for failover purposes. This will not
- be a clean shutdown.""",
- FLAG, 0),
- ('gdb', """Prints message after creating gdb module script
- and sleeps for 5 seconds."""),
- ('noexec,n', """Prints the commands and steps that will be run for a
- config without executing them. This can used to check if a
- config file is doing what it should be doing"""),
- ('nomod', "Skip load/unload module step."),
- ('nosetup', "Skip device setup/cleanup step."),
- ('reformat', "Reformat all devices (without question)"),
- ('mkfsoptions', "Additional options for the mk*fs command line", PARAM),
- ('dump', "Dump the kernel debug log to file before portals is unloaded",
- PARAM),
- ('write_conf', "Save all the client config information on mds."),
- ('record', "Write config information on mds."),
- ('record_log', "Name of config record log.", PARAM),
- ('record_device', "MDS device name that will record the config commands",
- PARAM),
- ('minlevel', "Minimum level of services to configure/cleanup",
- INTPARAM, 0),
- ('maxlevel', """Maximum level of services to configure/cleanup
- Levels are aproximatly like:
- 10 - netwrk
- 20 - device, ldlm
- 30 - osd, mdd
- 40 - mds, ost
- 70 - mountpoint, echo_client, osc, mdc, lov""",
- INTPARAM, 100),
- ('lustre', """Base directory of lustre sources. This parameter will
- cause lconf to load modules from a source tree.""", PARAM),
- ('portals', """Portals source directory. If this is a relative path,
- then it is assumed to be relative to lustre. """, PARAM),
- ('timeout', "Set recovery timeout", INTPARAM),
- ('upcall', "Set both portals and lustre upcall script", PARAM),
- ('lustre_upcall', "Set lustre upcall script", PARAM),
- ('portals_upcall', "Set portals upcall script", PARAM),
- ('lctl_dump', "Save lctl ioctls to the dumpfile argument", PARAM),
- ('ptldebug', "Set the portals debug level", PARAM),
- ('subsystem', "Set the portals debug subsystem", PARAM),
- ('gdb_script', "Fullname of gdb debug script", PARAM, default_gdb_script()),
- ('debug_path', "Path to save debug dumps", PARAM, default_debug_path()),
-# Client recovery options
- ('recover', "Recover a device"),
- ('group', "The group of devices to configure or cleanup", PARAM),
- ('tgt_uuid', "The failed target (required for recovery)", PARAM),
- ('client_uuid', "The failed client (required for recovery)", PARAM),
- ('conn_uuid', "The failed connection (required for recovery)", PARAM),
-
- ('inactive', """The name of an inactive service, to be ignored during
- mounting (currently OST-only). Can be repeated.""",
- PARAMLIST),
- ]
-
-def main():
- global lctl, config, toplevel, CONFIG_FILE
-
- # in the upcall this is set to SIG_IGN
- signal.signal(signal.SIGCHLD, signal.SIG_DFL)
-
- cl = Lustre.Options("lconf", "config.xml", lconf_options)
- try:
- config, args = cl.parse(sys.argv[1:])
- except Lustre.OptionError, e:
- print e
- sys.exit(1)
-
- setupModulePath(sys.argv[0])
-
- host = socket.gethostname()
-
- # the PRNG is normally seeded with time(), which is not so good for starting
- # time-synchronized clusters
- input = open('/dev/urandom', 'r')
- if not input:
- print 'Unable to open /dev/urandom!'
- sys.exit(1)
- seed = input.read(32)
- input.close()
- random.seed(seed)
-
- sanitise_path()
-
- init_select(config.select)
-
- if len(args) > 0:
- # allow config to be fetched via HTTP, but only with python2
- if sys.version[0] != '1' and args[0].startswith('http://'):
- import urllib2
- try:
- config_file = urllib2.urlopen(args[0])
- except (urllib2.URLError, socket.error), err:
- if hasattr(err, 'args'):
- err = err.args[1]
- print "Could not access '%s': %s" %(args[0], err)
- sys.exit(1)
- elif not os.access(args[0], os.R_OK):
- print 'File not found or readable:', args[0]
- sys.exit(1)
- else:
- # regular file
- config_file = open(args[0], 'r')
- try:
- dom = xml.dom.minidom.parse(config_file)
- except Exception:
- panic("%s does not appear to be a config file." % (args[0]))
- sys.exit(1) # make sure to die here, even in debug mode.
- CONFIG_FILE = args[0]
- db = Lustre.LustreDB_XML(dom.documentElement, dom.documentElement)
- if not config.config:
- config.config = os.path.basename(args[0])# use full path?
- if config.config[-4:] == '.xml':
- config.config = config.config[:-4]
- elif config.ldapurl:
- if not config.config:
- panic("--ldapurl requires --config name")
- dn = "config=%s,fs=lustre" % (config.config)
- db = Lustre.LustreDB_LDAP('', {}, base=dn, url = config.ldapurl)
- elif config.ptldebug or config.subsystem:
- sys_set_ptldebug(None)
- sys_set_subsystem(None)
- sys.exit(0)
- else:
- print 'Missing config file or ldap URL.'
- print 'see lconf --help for command summary'
- sys.exit(1)
-
- toplevel = db
-
- ver = db.get_version()
- if not ver:
- panic("No version found in config data, please recreate.")
- if ver != Lustre.CONFIG_VERSION:
- panic("Config version", ver, "does not match lconf version",
- Lustre.CONFIG_VERSION)
-
- node_list = []
- if config.node:
- node_list.append(config.node)
- else:
- if len(host) > 0:
- node_list.append(host)
- node_list.append('localhost')
-
- debug("configuring for host: ", node_list)
-
- if len(host) > 0:
- config.debug_path = config.debug_path + '-' + host
- config.gdb_script = config.gdb_script + '-' + host
-
- lctl = LCTLInterface('lctl')
-
- if config.lctl_dump:
- lctl.use_save_file(config.lctl_dump)
-
- if config.record:
- if not (config.record_device and config.record_log):
- panic("When recording, both --record_log and --record_device must be specified.")
- lctl.clear_log(config.record_device, config.record_log)
- lctl.record(config.record_device, config.record_log)
-
- doHost(db, node_list)
-
- if config.record:
- lctl.end_record()
-
-if __name__ == "__main__":
- try:
- main()
- except Lustre.LconfError, e:
- print e
-# traceback.print_exc(file=sys.stdout)
- sys.exit(1)
- except CommandError, e:
- e.dump()
- sys.exit(e.rc)
-
- if first_cleanup_error:
- sys.exit(first_cleanup_error)
git://git.whamcloud.com / fs / lustre-release.git / commitdiff