--- /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 = "/usr/lib/lustre/python"
+
+def development_mode():
+ base = os.path.dirname(sys.argv[0])
+ if os.access(base+"/Makefile.am", 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):
+ mod = '%s.o' % (modname)
+ module = src_dir +'/'+ dev_dir +'/'+ mod
+ 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:
+ 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