#
# Based in part on the XML obdctl modifications done by Brian Behlendorf
-import sys, getopt
-import string, os, stat, popen2, socket, time, random
+import sys, getopt, types
+import string, os, stat, popen2, socket, time, random, fcntl, FCNTL, select
import re, exceptions
import xml.dom.minidom
print """usage: lconf config.xml
config.xml Lustre configuration in xml format.
---get <url> URL to fetch a config file
+--ldapurl LDAP server URL, eg. ldap://localhost
+--config Cluster config name used for LDAP query
--node <nodename> Load config for <nodename>
+--select service=nodeA,service2=nodeB U
-d | --cleanup Cleans up config. (Shutdown)
-f | --force Forced unmounting and/or obd detach during cleanup
-v | --verbose Print system commands as they are run
30 - obd, mdd
40 - mds, ost
50 - mdc, osc
- 60 - lov, lovconfig
+ 60 - lov
70 - mountpoint, echo_client
--lustre=src_dir Base directory of lustre sources. This parameter will cause lconf
to load modules from a source tree.
self._portals_dir = ''
self._minlevel = 0
self._maxlevel = 100
- self._timeout = -1
+ self._timeout = 0
self._recovery_upcall = ''
+ self._ldapurl = ''
+ self._config_name = ''
+ self._select = {}
def verbose(self, flag = None):
if flag: self._verbose = flag
if val: self._node = val
return self._node
- def url(self, val = None):
- if val: self._url = val
- return self._url
-
def gdb_script(self):
if os.path.isdir('/r'):
return '/r' + self._gdb_script
def dump_file(self, val = None):
if val: self._dump_file = val
return self._dump_file
-
def minlevel(self, val = None):
if val: self._minlevel = int(val)
return self._minlevel
if val: self._recovery_upcall = val
return self._recovery_upcall
+ def ldapurl(self, val = None):
+ if val: self._ldapurl = val
+ return self._ldapurl
+
+ def config_name(self, val = None):
+ if val: self._config_name = val
+ return self._config_name
+
+ def init_select(self, arg):
+ # arg = "service=nodeA,service2=nodeB"
+ list = string.split(arg, ',')
+ for entry in list:
+ srv, node = string.split(entry, '=')
+ self._select[srv] = node
+
+ def select(self, srv):
+ if self._select.has_key(srv):
+ return self._select[srv]
+ return None
+
+
config = Config()
# ============================================================
else:
raise CommandError('lctl', "unable to find lctl binary.")
+ def set_nonblock(self, fd):
+ fl = fcntl.fcntl(fd, FCNTL.F_GETFL)
+ fcntl.fcntl(fd, FCNTL.F_SETFL, fl | os.O_NDELAY)
+
def run(self, cmds):
"""
run lctl
"""
debug("+", self.lctl, cmds)
if config.noexec(): return (0, [])
- p = popen2.Popen3(self.lctl, 1)
- p.tochild.write(cmds + "\n")
- p.tochild.close()
- out = p.fromchild.readlines()
- err = p.childerr.readlines()
- ret = p.wait()
+
+ child = popen2.Popen3(self.lctl, 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(err):
- raise CommandError(self.lctl, err, rc)
- return rc, out
+ if rc or len(errdata):
+ raise CommandError(self.lctl, errdata, rc)
+ return rc, outdata
def runcmd(self, *args):
"""
return dev
if config.reformat() or not os.access(file, os.R_OK | os.W_OK):
if size < 8000:
- error(file, "size must be larger than 8MB")
- run("dd if=/dev/zero bs=1k count=0 seek=%d of=%s" %(size, file))
+ panic(file, "size must be larger than 8MB, currently set to:", 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)
+
loop = loop_base()
# find next free loop
for n in xrange(0, MAX_LOOP_DEVICES):
""" 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, dom_node):
- self.dom_node = dom_node
+ def __init__(self, module_name, db):
+ self.db = db
self.module_name = module_name
- self.name = get_attr(dom_node, 'name')
- self.uuid = get_attr(dom_node, 'uuid')
+ self.name = self.db.getName()
+ self.uuid = self.db.getUUID()
self.kmodule_list = []
self._server = None
self._connected = 0
msg = string.join(map(str,args))
print self.module_name + ":", self.name, self.uuid, msg
-
def lookup_server(self, srv_uuid):
""" Lookup a server's network information """
- net = get_ost_net(self.dom_node.parentNode, srv_uuid)
+ net = self.db.get_ost_net(srv_uuid)
if not net:
panic ("Unable to find a server for:", srv_uuid)
self._server = Network(net)
class Network(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'NETWORK', dom_node)
- self.net_type = get_attr(dom_node,'type')
- self.nid = get_text(dom_node, 'server', '*')
- self.port = get_text_int(dom_node, 'port', 0)
- self.send_mem = get_text_int(dom_node, 'send_mem', DEFAULT_TCPBUF)
- self.recv_mem = get_text_int(dom_node, 'recv_mem', DEFAULT_TCPBUF)
+ 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.port = self.db.get_val_int('port', 0)
+ self.send_mem = self.db.get_val_int('send_mem', DEFAULT_TCPBUF)
+ self.recv_mem = self.db.get_val_int('recv_mem', DEFAULT_TCPBUF)
if '*' in self.nid:
self.nid = get_local_address(self.net_type, self.nid)
if not self.nid:
ret, out = run(TCP_ACCEPTOR, '-s', self.send_mem, '-r', self.recv_mem, nal_id, self.port)
if ret:
raise CommandError(TCP_ACCEPTOR, out, ret)
- ret = self.dom_node.getElementsByTagName('route_tbl')
- for a in ret:
- for r in a.getElementsByTagName('route'):
- net_type = get_attr(r, 'type')
- gw = get_attr(r, 'gw')
- lo = get_attr(r, 'lo')
- hi = get_attr(r,'hi', '')
- lctl.add_route(net_type, gw, lo, hi)
- if net_type in ('tcp', 'toe') and net_type == self.net_type and hi == '':
- srv = nid2server(self.dom_node.parentNode.parentNode, lo)
- if not srv:
- panic("no server for nid", lo)
- else:
- lctl.connect(srv.net_type, srv.nid, srv.port, srv.uuid, srv.send_mem, srv.recv_mem)
+ for net_type, gw, lo, hi in self.db.get_route_tbl():
+ lctl.add_route(net_type, gw, lo, hi)
+ if net_type in ('tcp', 'toe') and net_type == self.net_type and hi == '':
+ srvdb = self.db.nid2server(lo)
+ if not srv:
+ panic("no server for nid", lo)
+ else:
+ srv = Network(srvdb)
+ lctl.connect(srv.net_type, srv.nid, srv.port, srv.uuid, srv.send_mem, srv.recv_mem)
lctl.network(self.net_type, self.nid)
def cleanup(self):
self.info(self.net_type, self.nid, self.port)
- ret = self.dom_node.getElementsByTagName('route_tbl')
- for a in ret:
- for r in a.getElementsByTagName('route'):
- lo = get_attr(r, 'lo')
- hi = get_attr(r,'hi', '')
- if self.net_type in ('tcp', 'toe') and hi == '':
- srv = nid2server(self.dom_node.parentNode.parentNode, lo)
- if not srv:
- panic("no server for nid", lo)
- else:
- try:
- lctl.disconnect(srv.net_type, srv.nid, srv.port, srv.uuid)
- except CommandError, e:
- print "disconnect failed: ", self.name
- e.dump()
- cleanup_error(e.rc)
- try:
- lctl.del_route(self.net_type, self.nid, lo, hi)
- except CommandError, e:
- print "del_route failed: ", self.name
- e.dump()
- cleanup_error(e.rc)
+ for net_type, gw, lo, hi in self.db.get_route_tbl():
+ if self.net_type in ('tcp', 'toe') and hi == '':
+ srvdb = self.db.nid2server(lo)
+ if not srv:
+ panic("no server for nid", lo)
+ else:
+ srv = Network(srvdb)
+ try:
+ lctl.disconnect(srv.net_type, srv.nid, srv.port, srv.uuid)
+ except CommandError, e:
+ print "disconnect failed: ", self.name
+ e.dump()
+ cleanup_error(e.rc)
+ try:
+ lctl.del_route(self.net_type, self.nid, lo, hi)
+ except CommandError, e:
+ print "del_route failed: ", self.name
+ e.dump()
+ cleanup_error(e.rc)
try:
lctl.cleanup("RPCDEV", "RPCDEV_UUID")
run("killall acceptor")
class LDLM(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'LDLM', dom_node)
+ def __init__(self,db):
+ Module.__init__(self, 'LDLM', db)
self.add_lustre_module('ldlm', 'ldlm')
def prepare(self):
if is_prepared(self.uuid):
setup ="")
class LOV(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'LOV', dom_node)
- self.mds_uuid = get_first_ref(dom_node, 'mds')
- mds= lookup(dom_node.parentNode, self.mds_uuid)
- self.mds_name = getName(mds)
- devs = dom_node.getElementsByTagName('devices')
- if len(devs) > 0:
- dev_node = devs[0]
- self.stripe_sz = get_attr_int(dev_node, 'stripesize', 65536)
- self.stripe_off = get_attr_int(dev_node, 'stripeoffset', 0)
- self.pattern = get_attr_int(dev_node, 'pattern', 0)
- self.devlist = get_all_refs(dev_node, 'obd')
- self.stripe_cnt = get_attr_int(dev_node, 'stripecount', len(self.devlist))
+ def __init__(self,db):
+ Module.__init__(self, 'LOV', db)
+ self.mds_uuid = self.db.get_first_ref('mds')
+ mds= self.db.lookup(self.mds_uuid)
+ self.mds_name = mds.getName()
+ 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.add_lustre_module('mdc', 'mdc')
self.add_lustre_module('lov', 'lov')
if is_prepared(self.uuid):
return
for obd_uuid in self.devlist:
- obd = lookup(self.dom_node.parentNode, obd_uuid)
+ obd = self.db.lookup(obd_uuid)
osc = get_osc(obd)
if osc:
try:
print "Error preparing OSC %s (inactive)\n" % osc_uuid
else:
panic('osc not found:', osc_uuid)
- mdc_uuid = prepare_mdc(self.dom_node.parentNode, self.mds_uuid)
+ mdc_uuid = prepare_mdc(self.db, self.mds_uuid)
self.info(self.mds_uuid, self.stripe_cnt, self.stripe_sz,
self.stripe_off, self.pattern, self.devlist, self.mds_name)
lctl.newdev(attach="lov %s %s" % (self.name, self.uuid),
if not is_prepared(self.uuid):
return
for obd_uuid in self.devlist:
- obd = lookup(self.dom_node.parentNode, obd_uuid)
+ obd = self.db.lookup(obd_uuid)
osc = get_osc(obd)
if osc:
osc.cleanup()
else:
panic('osc not found:', osc_uuid)
Module.cleanup(self)
- cleanup_mdc(self.dom_node.parentNode, self.mds_uuid)
+ cleanup_mdc(self.db, self.mds_uuid)
def load_module(self):
for obd_uuid in self.devlist:
- obd = lookup(self.dom_node.parentNode, obd_uuid)
+ obd = self.db.lookup(obd_uuid)
osc = get_osc(obd)
if osc:
osc.load_module()
def cleanup_module(self):
Module.cleanup_module(self)
for obd_uuid in self.devlist:
- obd = lookup(self.dom_node.parentNode, obd_uuid)
+ obd = self.db.lookup(obd_uuid)
osc = get_osc(obd)
if osc:
osc.cleanup_module()
panic('osc not found:', osc_uuid)
class LOVConfig(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'LOVConfig', dom_node)
- self.lov_uuid = get_first_ref(dom_node, 'lov')
- l = lookup(dom_node.parentNode, self.lov_uuid)
+ def __init__(self,db):
+ Module.__init__(self, 'LOVConfig', db)
+
+ self.lov_uuid = self.db.get_first_ref('lov')
+ l = self.db.lookup(self.lov_uuid)
self.lov = LOV(l)
def prepare(self):
#nothing to do here
pass
-
-class MDS(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'MDS', dom_node)
- self.devname, self.size = get_device(dom_node)
- self.fstype = get_text(dom_node, 'fstype')
+class MDSDEV(Module):
+ def __init__(self,db):
+ Module.__init__(self, 'MDSDEV', db)
+ self.devname = self.db.get_val('devpath','')
+ self.size = self.db.get_val_int('devsize', 0)
+ self.fstype = self.db.get_val('fstype', '')
+ # overwrite the orignal MDSDEV name and uuid with the MDS name and uuid
+ self.uuid = self.db.get_first_ref('mds')
+ mds = self.db.lookup(self.uuid)
+ self.name = mds.getName()
+ self.lovconfig_uuids = mds.get_refs('lovconfig')
# FIXME: if fstype not set, then determine based on kernel version
- self.format = get_text(dom_node, 'autoformat', "no")
+ self.format = self.db.get_val('autoformat', "no")
if self.fstype == 'extN':
self.add_lustre_module('extN', 'extN')
self.add_lustre_module('mds', 'mds')
- self.add_lustre_module('obdclass', 'fsfilt_%s'%(self.fstype))
+ if self.fstype:
+ self.add_lustre_module('obdclass', 'fsfilt_%s' % (self.fstype))
def prepare(self):
if is_prepared(self.uuid):
setup ="")
lctl.newdev(attach="mds %s %s" % (self.name, self.uuid),
setup ="%s %s" %(blkdev, self.fstype))
+ for uuid in self.lovconfig_uuids:
+ db = self.db.lookup(uuid)
+ lovconfig = LOVConfig(db)
+ lovconfig.prepare()
+
def cleanup(self):
if is_prepared('MDT_UUID'):
try:
# Very unusual case, as there is no MDC element in the XML anymore
# Builds itself from an MDS node
class MDC(Module):
- def __init__(self,dom_node):
- self.mds = MDS(dom_node)
- self.dom_node = dom_node
+ def __init__(self,db):
+ self.mds_uuid = db.getUUID()
+ self.mds_name = db.getName()
+ self.db = db
+ node_name = config.select(self.mds_name)
+ if node_name:
+ self.mdd_uuid = self.db.get_mdd(node_name, self.mds_uuid)
+ else:
+ self.mdd_uuid = db.get_first_ref('active')
+ if not self.mdd_uuid:
+ panic("No MDSDEV found for MDS service:", self.mds_name)
self.module_name = 'MDC'
self.kmodule_list = []
self._server = None
self._connected = 0
host = socket.gethostname()
- self.name = 'MDC_%s' % (self.mds.name)
+ self.name = 'MDC_%s' % (self.mds_name)
self.uuid = '%s_%05x_%05x' % (self.name, int(random.random() * 1048576),
int(random.random() * 1048576))
- self.lookup_server(self.mds.uuid)
+ self.lookup_server(self.mdd_uuid)
self.add_lustre_module('mdc', 'mdc')
def prepare(self):
if is_prepared(self.uuid):
return
- self.info(self.mds.uuid)
+ self.info(self.mds_uuid)
srv = self.get_server()
lctl.connect(srv.net_type, srv.nid, srv.port, srv.uuid, srv.send_mem, srv.recv_mem)
lctl.newdev(attach="mdc %s %s" % (self.name, self.uuid),
- setup ="%s %s" %(self.mds.uuid, srv.uuid))
+ setup ="%s %s" %(self.mds_uuid, srv.uuid))
class OBD(Module):
- def __init__(self, dom_node):
- Module.__init__(self, 'OBD', dom_node)
- self.obdtype = get_attr(dom_node, 'type')
- self.devname, self.size = get_device(dom_node)
- self.fstype = get_text(dom_node, 'fstype')
- self.active_target = get_text(dom_node, 'active_target')
+ def __init__(self, db):
+ Module.__init__(self, 'OBD', db)
+ self.obdtype = self.db.get_val('obdtype')
+ self.devname = self.db.get_val('devpath', '')
+ self.size = self.db.get_val_int('devsize', 0)
+ self.fstype = self.db.get_val('fstype', '')
+ self.active_target = self.db.get_first_ref('active')
# FIXME: if fstype not set, then determine based on kernel version
- self.format = get_text(dom_node, 'autoformat', 'yes')
+ self.format = self.db.get_val('autoformat', 'yes')
if self.fstype == 'extN':
self.add_lustre_module('extN', 'extN')
self.add_lustre_module(self.obdtype, self.obdtype)
clean_loop(self.devname)
class COBD(Module):
- def __init__(self, dom_node):
- Module.__init__(self, 'COBD', dom_node)
- self.real_uuid = get_first_ref(dom_node, 'real_obd')
- self.cache_uuid = get_first_ref(dom_node, 'cache_obd')
+ 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
setup ="%s %s" %(self.real_uuid, self.cache_uuid))
class OST(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'OST', dom_node)
- self.obd_uuid = get_first_ref(dom_node, 'obd')
+ def __init__(self,db):
+ Module.__init__(self, 'OST', db)
+ self.obd_uuid = self.db.get_first_ref('obd')
self.add_lustre_module('ost', 'ost')
def prepare(self):
# virtual interface for OSC and LOV
class VOSC(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'VOSC', dom_node)
- if dom_node.nodeName == 'lov':
- self.osc = LOV(dom_node)
+ def __init__(self,db):
+ Module.__init__(self, 'VOSC', db)
+ if db.get_class() == 'lov':
+ self.osc = LOV(db)
else:
- self.osc = get_osc(dom_node)
+ self.osc = get_osc(db)
def get_uuid(self):
return self.osc.uuid
def prepare(self):
class OSC(Module):
- def __init__(self, dom_node, obd_name, obd_uuid, ost_uuid):
- self.dom_node = dom_node
+ def __init__(self, db, obd_name, obd_uuid, ost_uuid):
+ self.db = db
self.module_name = 'OSC'
self.name = 'OSC_%s' % (obd_name)
self.uuid = '%s_%05x' % (self.name, int(random.random() * 1048576))
self.obd_uuid = obd_uuid
self.ost_uuid = ost_uuid
+ debug("OSC:", obd_uuid, ost_uuid)
self.lookup_server(self.ost_uuid)
self.add_lustre_module('osc', 'osc')
class ECHO_CLIENT(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'ECHO_CLIENT', dom_node)
+ def __init__(self,db):
+ Module.__init__(self, 'ECHO_CLIENT', db)
self.add_lustre_module('obdecho', 'obdecho')
- self.obd_uuid = get_first_ref(dom_node, 'obd')
- obd = lookup(self.dom_node.parentNode, self.obd_uuid)
+ self.obd_uuid = self.db.get_first_ref('obd')
+ obd = self.db.lookup(self.obd_uuid)
self.osc = VOSC(obd)
def prepare(self):
return
self.osc.prepare() # XXX This is so cheating. -p
self.info(self.obd_uuid)
-
+
lctl.newdev(attach="echo_client %s %s" % (self.name, self.uuid),
- setup = self.obd_uuid)
+ setup = self.osc.get_uuid())
def cleanup(self):
if not is_prepared(self.uuid):
class Mountpoint(Module):
- def __init__(self,dom_node):
- Module.__init__(self, 'MTPT', dom_node)
- self.path = get_text(dom_node, 'path')
- self.mds_uuid = get_first_ref(dom_node, 'mds')
- self.obd_uuid = get_first_ref(dom_node, 'obd')
+ def __init__(self,db):
+ Module.__init__(self, 'MTPT', db)
+ self.path = self.db.get_val('path')
+ self.mds_uuid = self.db.get_first_ref('mds')
+ self.obd_uuid = self.db.get_first_ref('obd')
self.add_lustre_module('mdc', 'mdc')
self.add_lustre_module('llite', 'llite')
- obd = lookup(self.dom_node.parentNode, self.obd_uuid)
+ obd = self.db.lookup(self.obd_uuid)
self.osc = VOSC(obd)
def prepare(self):
self.osc.prepare()
- mdc_uuid = prepare_mdc(self.dom_node.parentNode, self.mds_uuid)
+ mdc_uuid = prepare_mdc(self.db, self.mds_uuid)
self.info(self.path, self.mds_uuid, self.obd_uuid)
cmd = "mount -t lustre_lite -o osc=%s,mdc=%s none %s" % \
(self.osc.get_uuid(), mdc_uuid, self.path)
panic("fs is still mounted:", self.path)
self.osc.cleanup()
- cleanup_mdc(self.dom_node.parentNode, self.mds_uuid)
+ cleanup_mdc(self.db, self.mds_uuid)
def load_module(self):
self.osc.load_module()
osc = OSC(obd_dom, obd.name, obd.uuid, obd.active_target)
return osc
+class LustreDB:
+ def lookup(self, uuid):
+ """ lookup returns a new LustreDB instance"""
+ return self._lookup_by_uuid(uuid)
+
+ def lookup_name(self, name, class_name = ""):
+ """ lookup returns a new LustreDB instance"""
+ return self._lookup_by_name(name, class_name)
+
+ def lookup_class(self, class_name):
+ """ lookup returns a new LustreDB instance"""
+ return self._lookup_by_class(class_name)
+
+ def get_val(self, tag, default=None):
+ v = self._get_val(tag)
+ if v:
+ return v
+ if default != None:
+ return default
+ debug("LustreDB", self.getName(), " no value for:", tag)
+ return None
-def get_device(obd):
- list = obd.getElementsByTagName('device')
- if len(list) > 0:
- dev = list[0]
- dev.normalize();
- size = get_attr_int(dev, 'size', 0)
- return dev.firstChild.data, size
- return '', 0
-
-# Get the text content from the first matching child
-# If there is no content (or it is all whitespace), return
-# the default
-def get_text(dom_node, tag, default=""):
- list = dom_node.getElementsByTagName(tag)
- if len(list) > 0:
- dom_node = list[0]
- dom_node.normalize()
- if dom_node.firstChild:
- txt = string.strip(dom_node.firstChild.data)
- if txt:
- return txt
- return default
-
-def get_text_int(dom_node, tag, default=0):
- list = dom_node.getElementsByTagName(tag)
- n = default
- if len(list) > 0:
- dom_node = list[0]
- dom_node.normalize()
- if dom_node.firstChild:
- txt = string.strip(dom_node.firstChild.data)
- if txt:
- try:
- n = int(txt)
- except ValueError:
- panic("text value is not integer:", txt)
- return n
-
-def get_attr(dom_node, attr, default=""):
- v = dom_node.getAttribute(attr)
- if v:
- return v
- return default
-
-def get_attr_int(dom_node, attr, default=0):
- n = default
- v = dom_node.getAttribute(attr)
- if v:
+ def get_class(self):
+ return self._get_class()
+
+ def get_val_int(self, tag, default=0):
+ str = self._get_val(tag)
try:
- n = int(v)
+ if str:
+ return int(str)
+ return default
except ValueError:
- panic("attr value is not integer", v)
- return n
-
-def get_first_ref(dom_node, tag):
- """ Get the first uuidref of the type TAG. Used one only
- one is expected. Returns the uuid."""
- uuid = None
- refname = '%s_ref' % tag
- list = dom_node.getElementsByTagName(refname)
- if len(list) > 0:
- uuid = getRef(list[0])
- return uuid
+ panic("text value is not integer:", str)
+
+ def get_first_ref(self, tag):
+ """ Get the first uuidref of the type TAG. Only
+ one is expected. Returns the uuid."""
+ uuids = self._get_refs(tag)
+ if len(uuids) > 0:
+ return uuids[0]
+ return None
-def get_all_refs(dom_node, tag):
- """ Get all the refs of type TAG. Returns list of uuids. """
- uuids = []
- refname = '%s_ref' % tag
- list = dom_node.getElementsByTagName(refname)
- if len(list) > 0:
- for i in list:
- uuids.append(getRef(i))
- return uuids
-
-def get_ost_net(dom_node, uuid):
- ost = lookup(dom_node, uuid)
- uuid = get_first_ref(ost, 'network')
- if not uuid:
+ def get_refs(self, tag):
+ """ Get all the refs of type TAG. Returns list of uuids. """
+ uuids = self._get_refs(tag)
+ return uuids
+
+ def get_all_refs(self):
+ """ Get all the refs. Returns list of uuids. """
+ uuids = self._get_all_refs()
+ return uuids
+
+ def get_ost_net(self, uuid):
+ ost = self.lookup(uuid)
+ uuid = ost.get_first_ref('network')
+ if not uuid:
+ return None
+ return ost.lookup(uuid)
+
+ def nid2server(self, nid):
+ netlist = self.parent.parent.attrs['network']
+ for net_db in netlist:
+ if net_db.get_val('nid') == nid:
+ return net
return None
- return lookup(dom_node, uuid)
-
-def nid2server(dom_node, nid):
- netlist = dom_node.getElementsByTagName('network')
- for net_node in netlist:
- if get_text(net_node, 'server') == nid:
- return Network(net_node)
- return None
-def lookup(dom_node, uuid):
- for n in dom_node.childNodes:
- if n.nodeType == n.ELEMENT_NODE:
- if getUUID(n) == uuid:
- return n
+ # the tag name is the service type
+ # fixme: this should do some checks to make sure the dom_node is a service
+ #
+ # determine what "level" a particular node is at.
+
+ # the order of iniitailization is based on level.
+ def getServiceLevel(self):
+ type = self.get_class()
+ ret=0;
+ if type in ('network',):
+ ret = 10
+ elif type in ('device', 'ldlm'):
+ ret = 20
+ elif type in ('obd', 'mdd', 'cobd'):
+ ret = 30
+ elif type in ('mdsdev','ost'):
+ ret = 40
+ elif type in ('mdc','osc'):
+ ret = 50
+ elif type in ('lov',):
+ ret = 60
+ elif type in ('mountpoint', 'echoclient'):
+ ret = 70
+
+ 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 = servdb.getServiceLevel()
+ if level > 0:
+ list.append((level, servdb))
+ else:
+ panic('service not found: ' + ref_uuid)
+
+ list.sort()
+ return list
+
+ # Find the mdsdev attached to node_name that points to
+ # mds_uuid
+ # node->profiles->mdsdev_refs->mds
+ def get_mdd(self, node_name, mds_uuid):
+ node_db = self.lookup_name(node_name)
+ if not node_db:
+ return None
+ prof_list = node_db.get_refs('profile')
+ for prof_uuid in prof_list:
+ prof_db = node_db.lookup(prof_uuid)
+ mdd_list = prof_db.get_refs('mdsdev')
+ for mdd_uuid in mdd_list:
+ mdd = self.lookup(mdd_uuid)
+ if mdd.get_first_ref('mds') == mds_uuid:
+ return mdd_uuid
+ return None
+
+
+class LustreDB_XML(LustreDB):
+ def __init__(self, dom, root_node):
+ # init xmlfile
+ self.dom_node = dom
+ self.root_node = root_node
+
+ def xmltext(self, dom_node, tag):
+ list = dom_node.getElementsByTagName(tag)
+ if len(list) > 0:
+ dom_node = list[0]
+ dom_node.normalize()
+ if dom_node.firstChild:
+ txt = string.strip(dom_node.firstChild.data)
+ if txt:
+ return txt
+
+ def xmlattr(self, dom_node, attr):
+ return dom_node.getAttribute(attr)
+
+ def _get_val(self, tag):
+ """a value could be an attribute of the current node
+ or the text value in a child node"""
+ ret = self.xmlattr(self.dom_node, tag)
+ if not ret:
+ ret = self.xmltext(self.dom_node, tag)
+ return ret
+
+ def _get_class(self):
+ return self.dom_node.nodeName
+
+ #
+ # [(ref_class, ref_uuid),]
+ def _get_all_refs(self):
+ list = []
+ for n in self.dom_node.childNodes:
+ if n.nodeType == n.ELEMENT_NODE:
+ ref_uuid = self.xml_get_ref(n)
+ ref_class = n.nodeName
+ list.append((ref_class, ref_uuid))
+
+ list.sort()
+ return list
+
+ def _get_refs(self, tag):
+ """ Get all the refs of type TAG. Returns list of uuids. """
+ uuids = []
+ refname = '%s_ref' % tag
+ reflist = self.dom_node.getElementsByTagName(refname)
+ for r in reflist:
+ uuids.append(self.xml_get_ref(r))
+ return uuids
+
+ def xmllookup_by_uuid(self, dom_node, uuid):
+ for n in dom_node.childNodes:
+ if n.nodeType == n.ELEMENT_NODE:
+ if self.xml_get_uuid(n) == uuid:
+ return n
+ else:
+ n = self.xmllookup_by_uuid(n, uuid)
+ if n: return n
+ return None
+
+ def _lookup_by_uuid(self, uuid):
+ dom = self. xmllookup_by_uuid(self.root_node, uuid)
+ if dom:
+ return LustreDB_XML(dom, self.root_node)
+
+ def xmllookup_by_name(self, dom_node, name):
+ for n in dom_node.childNodes:
+ if n.nodeType == n.ELEMENT_NODE:
+ if self.xml_get_name(n) == name:
+ return n
+ else:
+ n = self.xmllookup_by_name(n, name)
+ if n: return n
+ return None
+
+ def _lookup_by_name(self, name, class_name):
+ dom = self.xmllookup_by_name(self.root_node, name)
+ if dom:
+ return LustreDB_XML(dom, self.root_node)
+
+ def xmllookup_by_class(self, dom_node, class_name):
+ return dom_node.getElementsByTagName(class_name)
+
+ def _lookup_by_class(self, class_name):
+ ret = []
+ domlist = self.xmllookup_by_class(self.root_node, class_name)
+ for node in domlist:
+ ret.append(LustreDB_XML(node, self.root_node))
+ return ret
+
+ def xml_get_name(self, n):
+ return n.getAttribute('name')
+
+ def getName(self):
+ return self.xml_get_name(self.dom_node)
+
+ def xml_get_ref(self, n):
+ return n.getAttribute('uuidref')
+
+ def xml_get_uuid(self, dom_node):
+ return dom_node.getAttribute('uuid')
+
+ def getUUID(self):
+ return self.xml_get_uuid(self.dom_node)
+
+ def get_routes(self, type, gw):
+ """ Return the routes as a list of tuples of the form:
+ [(type, gw, lo, hi),]"""
+ res = []
+ tbl = self.dom_node.getElementsByTagName('route_tbl')
+ for t in tbl:
+ routes = t.getElementsByTagName('route')
+ for r in routes:
+ lo = self.xmlattr(r, 'lo')
+ hi = self.xmlattr(r, 'hi', '')
+ res.append((type, gw, lo, hi))
+ return res
+
+ def get_route_tbl(self):
+ ret = []
+ tbls = self.dom_node.getElementsByTagName('route_tbl')
+ for tbl in tbls:
+ for r in tbl.getElementsByTagName('route'):
+ net_type = self.xmlattr(r, 'type')
+ gw = self.xmlattr(r, 'gw')
+ lo = self.xmlattr(r, 'lo')
+ hi = self.xmlattr(r,'hi', '')
+ ret.append((net_type, gw, lo, hi))
+ return ret
+
+
+# ================================================================
+# LDAP Support
+class LustreDB_LDAP(LustreDB):
+ def __init__(self, name, attrs,
+ base = "fs=lustre",
+ parent = None,
+ url = "ldap://localhost",
+ user = "cn=Manager, fs=lustre",
+ pw = "secret"
+ ):
+ self._name = name
+ self._attrs = attrs
+ self._base = base
+ self._parent = parent
+ self._url = url
+ self._user = user
+ self._pw = pw
+ if parent:
+ self.l = parent.l
+ self._base = parent._base
+ else:
+ self.open()
+
+ def open(self):
+ import ldap
+ try:
+ self.l = ldap.initialize(self._url)
+ # Set LDAP protocol version used
+ self.l.protocol_version=ldap.VERSION3
+ # user and pw only needed if modifying db
+ self.l.bind_s("", "", ldap.AUTH_SIMPLE);
+ except ldap.LDAPerror, e:
+ panic(e)
+ # FIXME, do something useful here
+
+ def close(self):
+ self.l.unbind_s()
+
+ def ldap_search(self, filter):
+ """Return list of uuids matching the filter."""
+ import ldap
+ dn = self._base
+ ret = []
+ uuids = []
+ try:
+ for name, attrs in self.l.search_s(dn, ldap.SCOPE_ONELEVEL,
+ filter, ["uuid"]):
+ for v in attrs['uuid']:
+ uuids.append(v)
+ except ldap.NO_SUCH_OBJECT, e:
+ pass
+ except ldap.LDAPError, e:
+ print e # FIXME: die here?
+ if len(uuids) > 0:
+ for uuid in uuids:
+ ret.append(self._lookup_by_uuid(uuid))
+ return ret
+
+ def _lookup_by_name(self, name, class_name):
+ list = self.ldap_search("lustreName=%s" %(name))
+ if len(list) == 1:
+ return list[0]
+ return []
+
+ def _lookup_by_class(self, class_name):
+ return self.ldap_search("objectclass=%s" %(string.upper(class_name)))
+
+ def _lookup_by_uuid(self, uuid):
+ import ldap
+ dn = "uuid=%s,%s" % (uuid, self._base)
+ ret = None
+ try:
+ for name, attrs in self.l.search_s(dn, ldap.SCOPE_BASE,
+ "objectclass=*"):
+ ret = LustreDB_LDAP(name, attrs, parent = self)
+
+ except ldap.NO_SUCH_OBJECT, e:
+ debug("NO_SUCH_OBJECT:", uuid)
+ pass # just return empty list
+ except ldap.LDAPError, e:
+ print e # FIXME: die here?
+ return ret
+
+
+ def _get_val(self, k):
+ ret = None
+ if self._attrs.has_key(k):
+ v = self._attrs[k]
+ if type(v) == types.ListType:
+ ret = str(v[0])
else:
- n = lookup(n, uuid)
- if n: return n
- return None
-
-# Get name attribute of dom_node
-def getName(dom_node):
- return dom_node.getAttribute('name')
+ ret = str(v)
+ return ret
-def getRef(dom_node):
- return dom_node.getAttribute('uuidref')
+ def _get_class(self):
+ return string.lower(self._attrs['objectClass'][0])
-# Get name attribute of dom_node
-def getUUID(dom_node):
- return dom_node.getAttribute('uuid')
+ #
+ # [(ref_class, ref_uuid),]
+ def _get_all_refs(self):
+ list = []
+ for k in self._attrs.keys():
+ if re.search('.*Ref', k):
+ for uuid in self._attrs[k]:
+ list.append((k, uuid))
+ return list
-# the tag name is the service type
-# fixme: this should do some checks to make sure the dom_node is a service
-def getServiceType(dom_node):
- return dom_node.nodeName
+ def _get_refs(self, tag):
+ """ Get all the refs of type TAG. Returns list of uuids. """
+ uuids = []
+ refname = '%sRef' % tag
+ if self._attrs.has_key(refname):
+ return self._attrs[refname]
+ return []
-#
-# determine what "level" a particular node is at.
-# the order of iniitailization is based on level.
-def getServiceLevel(dom_node):
- type = getServiceType(dom_node)
- ret=0;
- if type in ('network',):
- ret = 10
- elif type in ('device', 'ldlm'):
- ret = 20
- elif type in ('obd', 'mdd', 'cobd'):
- ret = 30
- elif type in ('mds','ost'):
- ret = 40
- elif type in ('mdc','osc'):
- ret = 50
- elif type in ('lov', 'lovconfig'):
- ret = 60
- elif type in ('mountpoint', 'echo_client'):
- ret = 70
-
- if ret < config.minlevel() or ret > config.maxlevel():
- ret = 0
- return ret
+ def getName(self):
+ return self._get_val('lustreName')
-#
-# return list of services in a profile. list is a list of tuples
-# [(level, dom_node),]
-def getServices(lustreNode, profileNode):
- list = []
- for n in profileNode.childNodes:
- if n.nodeType == n.ELEMENT_NODE:
- servNode = lookup(lustreNode, getRef(n))
- if not servNode:
- print n
- panic('service not found: ' + getRef(n))
- level = getServiceLevel(servNode)
- if level > 0:
- list.append((level, servNode))
- list.sort()
- return list
-
-def getByName(lustreNode, name, tag):
- ndList = lustreNode.getElementsByTagName(tag)
- for nd in ndList:
- if getName(nd) == name:
- return nd
- return None
-
+ def getUUID(self):
+ return self._get_val('uuid')
+
+ def get_route_tbl(self):
+ return []
############################################################
# MDC UUID hack -
# FIXME: clean this mess up!
#
saved_mdc = {}
-def prepare_mdc(dom_node, mds_uuid):
+def prepare_mdc(db, mds_uuid):
global saved_mdc
- mds_node = lookup(dom_node, mds_uuid);
- if not mds_node:
+ mds_db = db.lookup(mds_uuid);
+ if not mds_db:
panic("no mds:", mds_uuid)
if saved_mdc.has_key(mds_uuid):
return saved_mdc[mds_uuid]
- mdc = MDC(mds_node)
+ mdc = MDC(mds_db)
mdc.prepare()
saved_mdc[mds_uuid] = mdc.uuid
return mdc.uuid
-def cleanup_mdc(dom_node, mds_uuid):
+def cleanup_mdc(db, mds_uuid):
global saved_mdc
- mds_node = lookup(dom_node, mds_uuid);
- if not mds_node:
+ mds_db = db.lookup(mds_uuid);
+ if not mds_db:
panic("no mds:", mds_uuid)
if not saved_mdc.has_key(mds_uuid):
- mdc = MDC(mds_node)
+ mdc = MDC(mds_db)
mdc.cleanup()
saved_mdc[mds_uuid] = mdc.uuid
local_node = []
router_flag = 0
-def init_node(dom_node):
+def init_node(node_db):
global local_node, router_flag
- netlist = dom_node.getElementsByTagName('network')
- for dom_net in netlist:
- type = get_attr(dom_net, 'type')
- gw = get_text(dom_net, 'server')
+ netlist = node_db.lookup_class('network')
+ for db in netlist:
+ type = db.get_val('nettype')
+ gw = db.get_val('nid')
local_node.append((type, gw))
def node_needs_router():
return router_flag
-def get_routes(type, gw, dom_net):
- """ Return the routes as a list of tuples of the form:
- [(type, gw, lo, hi),]"""
- res = []
- tbl = dom_net.getElementsByTagName('route_tbl')
- for t in tbl:
- routes = t.getElementsByTagName('route')
- for r in routes:
- lo = get_attr(r, 'lo')
- hi = get_attr(r, 'hi', '')
- res.append((type, gw, lo, hi))
- return res
-
-
def init_route_config(lustre):
""" Scan the lustre config looking for routers. Build list of
routes. """
global routes, router_flag
routes = []
- list = lustre.getElementsByTagName('node')
- for node in list:
- if get_attr(node, 'router'):
+ list = lustre.lookup_class('node')
+ for node_db in list:
+ if node_db.get_val_int('router', 0):
router_flag = 1
for (local_type, local_nid) in local_node:
gw = None
- netlist = node.getElementsByTagName('network')
- for dom_net in netlist:
- if local_type == get_attr(dom_net, 'type'):
- gw = get_text(dom_net, 'server')
+ netlist = node_db.lookup_class('network')
+ for db in netlist:
+ if local_type == db.get_val('type'):
+ gw = db.get_val('server')
break
if not gw:
continue
- for dom_net in netlist:
- if local_type != get_attr(dom_net, 'type'):
- for route in get_routes(local_type, gw, dom_net):
+ for db in netlist:
+ if local_type != db.get_val('type'):
+ for route in db.get_routes(local_type, gw):
routes.append(route)
def local_net(net):
global local_node
for iface in local_node:
+ #debug("local_net a:", net.net_type, "b:", iface[0])
if net.net_type == iface[0]:
return 1
return 0
return None
-
############################################################
# lconf level logic
# Start a service.
-def startService(dom_node, module_flag):
- type = getServiceType(dom_node)
- debug('Service:', type, getName(dom_node), getUUID(dom_node))
+def startService(db, module_flag):
+ type = db.get_class()
+ debug('Service:', type, db.getName(), db.getUUID())
# there must be a more dynamic way of doing this...
n = None
if type == 'ldlm':
- n = LDLM(dom_node)
+ n = LDLM(db)
elif type == 'lov':
- n = LOV(dom_node)
- elif type == 'lovconfig':
- n = LOVConfig(dom_node)
+ n = LOV(db)
elif type == 'network':
- n = Network(dom_node)
+ n = Network(db)
elif type == 'obd':
- n = OBD(dom_node)
+ n = OBD(db)
elif type == 'cobd':
- n = COBD(dom_node)
+ n = COBD(db)
elif type == 'ost':
- n = OST(dom_node)
- elif type == 'mds':
- n = MDS(dom_node)
+ n = OST(db)
+ elif type == 'mdsdev':
+ n = MDSDEV(db)
elif type == 'osc':
- n = VOSC(dom_node)
+ n = VOSC(db)
elif type == 'mdc':
- n = MDC(dom_node)
+ n = MDC(db)
elif type == 'mountpoint':
- n = Mountpoint(dom_node)
- elif type == 'echo_client':
- n = ECHO_CLIENT(dom_node)
+ n = Mountpoint(db)
+ elif type == 'echoclient':
+ n = ECHO_CLIENT(db)
else:
panic ("unknown service type:", type)
# * make sure partitions are in place and prepared
# * initialize devices with lctl
# Levels is important, and needs to be enforced.
-def startProfile(lustreNode, profileNode, module_flag):
- if not profileNode:
+def startProfile(prof_db, module_flag):
+ if not prof_db:
panic("profile:", profile, "not found.")
- services = getServices(lustreNode, profileNode)
+ services = prof_db.getServices()
if config.cleanup():
services.reverse()
for s in services:
#
# Load profile for
-def doHost(lustreNode, hosts):
+def doHost(lustreDB, hosts):
global routes
global router_flag
- dom_node = None
+ node_db = None
for h in hosts:
- dom_node = getByName(lustreNode, h, 'node')
- if dom_node:
+ node_db = lustreDB.lookup_name(h, 'node')
+ if node_db:
break
- if not dom_node:
+ if not node_db:
print 'No host entry found.'
return
- if get_attr(dom_node, 'router'):
- router_flag = 1
- else:
- router_flag = 0
- recovery_upcall = get_attr(dom_node, 'recovery_upcall')
- timeout = get_attr_int(dom_node, 'timeout')
+ router_flag = node_db.get_val_int('router', 0)
+ recovery_upcall = node_db.get_val('recovery_upcall', '')
+ timeout = node_db.get_val_int('timeout', 0)
if not router_flag:
- init_node(dom_node)
- init_route_config(lustreNode)
+ init_node(node_db)
+ init_route_config(lustreDB)
# Two step process: (1) load modules, (2) setup lustre
# if not cleaning, load modules first.
module_flag = not config.cleanup()
- reflist = dom_node.getElementsByTagName('profile')
- for profile in reflist:
- startProfile(lustreNode, profile, module_flag)
+ prof_list = node_db.get_refs('profile')
+ for prof_uuid in prof_list:
+ prof_db = node_db.lookup(prof_uuid)
+ startProfile(prof_db, module_flag)
if not config.cleanup():
sys_set_debug_path()
sys_set_timeout(timeout)
sys_set_recovery_upcall(recovery_upcall)
-
module_flag = not module_flag
- for profile in reflist:
- startProfile(lustreNode, profile, module_flag)
+ for prof_uuid in prof_list:
+ prof_db = node_db.lookup(prof_uuid)
+ startProfile(prof_db, module_flag)
############################################################
# Command line processing
"portals=", "makeldiff", "cleanup", "noexec",
"help", "node=", "nomod", "nosetup",
"dump=", "force", "minlevel=", "maxlevel=",
- "timeout=", "recovery_upcall="]
+ "timeout=", "recovery_upcall=",
+ "ldapurl=", "config=", "select="]
opts = []
args = []
config.dump_file(a)
if o in ("-f", "--force"):
config.force(1)
- if o in ("--minlevel",):
+ if o == "--minlevel":
config.minlevel(a)
- if o in ("--maxlevel",):
+ if o == "--maxlevel":
config.maxlevel(a)
- if o in ("--timeout",):
+ if o == "--timeout":
config.timeout(a)
- if o in ("--recovery_upcall",):
+ if o == "--recovery_upcall":
config.recovery_upcall(a)
+ if o == "--ldapurl":
+ config.ldapurl(a)
+ if o == "--config":
+ config.config_name(a)
+ if o == "--select":
+ config.init_select(a)
+
return args
def fetch(url):
def sys_set_timeout(timeout):
# the command overrides the value in the node config
- if config.timeout() >= 0:
+ if config.timeout() > 0:
timeout = config.timeout()
- if timeout >= 0:
+ if timeout > 0:
debug("setting timeout:", timeout)
sysctl('lustre/timeout', timeout)
if not os.access(args[0], os.R_OK):
print 'File not found or readable:', args[0]
sys.exit(1)
- dom = xml.dom.minidom.parse(args[0])
- elif config.url():
- xmldata = fetch(config.url())
- dom = xml.dom.minidom.parseString(xmldata)
+ try:
+ dom = xml.dom.minidom.parse(args[0])
+ 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.
+ db = LustreDB_XML(dom.documentElement, dom.documentElement)
+ elif config.ldapurl():
+ if not config.config_name():
+ panic("--ldapurl requires --config name")
+ dn = "config=%s,fs=lustre" % (config.config_name())
+ db = LustreDB_LDAP('', {}, base=dn, url = config.ldapurl())
else:
usage()
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)
- doHost(dom.documentElement, node_list)
+
+ doHost(db, node_list)
if __name__ == "__main__":
try:
git://git.whamcloud.com / fs / lustre-release.git / blobdiff