def _register_service(self, port=None, installSignalHandlers=1):
if self.__svcrgy:
self.logs['main'].info(
"Registering service with service registery %s... " % self.__svcrgy)
svcrgy = hodXRClient(self.__svcrgy, None, None, 0, 0, installSignalHandlers)
if self._xrc and self._http:
svcrgy.registerService(self._cfg['userid'], self._serviceID,
self.hostname, self.name, 'hod', {
'xrs' : "http://%s:%s" % (
self._xrc.server_address[0],
self._xrc.server_address[1]),'http' :
"http://%s:%s" % (self._http.server_address[0],
self._http.server_address[1])})
elif self._xrc:
svcrgy.registerService(self._cfg['userid'], self._serviceID,
self.hostname, self.name, 'hod', {
'xrs' : "http://%s:%s" % (
self._xrc.server_address[0],
self._xrc.server_address[1]),})
elif self._http:
svcrgy.registerService(self._cfg['userid'], self._serviceID,
self.hostname, self.name, 'hod', {'http' :
"http://%s:%s" % (self._http.server_address[0],
self._http.server_address[1]),})
else:
svcrgy.registerService(self._cfg['userid'], self._serviceID,
self.hostname, name, 'hod', {} )
def testFailure(self):
"""HOD should raise Exception when unregistered rpc is called"""
global serverPort
client = hodXRClient('http://localhost:' + str(serverPort),
retryRequests=False)
self.assertRaises(Exception, client.noMethod)
pass
def testTimeout(self):
"""HOD should raise Exception when rpc call times out"""
# Give client some random nonexistent url
serverPort = ServiceUtil.getUniqRandomPort(h='localhost',low=40000,high=50000)
client = hodXRClient('http://localhost:' + str(serverPort), retryRequests=False)
self.assertRaises(Exception, client.testing)
pass
def testTimeout(self):
"""HOD should raise Exception when rpc call times out"""
# Give client some random nonexistent url
serverPort = ServiceUtil.getUniqRandomPort(h='localhost',
low=40000,
high=50000)
client = hodXRClient('http://localhost:' + str(serverPort),
retryRequests=False)
self.assertRaises(Exception, client.testing)
pass
def testInterrupt(self):
""" HOD should raise HodInterruptException when interrupted"""
def interrupt(testClass):
testClass.assertRaises(HodInterruptException, client.testing)
serverPort = ServiceUtil.getUniqRandomPort(h='localhost',low=40000,high=50000)
client = hodXRClient('http://localhost:' + str(serverPort))
myThread = threading.Thread(name='testinterrupt', target=interrupt,args=(self,))
# Set the global interrupt
hodInterrupt.setFlag()
myThread.start()
myThread.join()
pass
def testInterrupt(self):
""" HOD should raise HodInterruptException when interrupted"""
def interrupt(testClass):
testClass.assertRaises(HodInterruptException, client.testing)
serverPort = ServiceUtil.getUniqRandomPort(h='localhost',
low=40000,
high=50000)
client = hodXRClient('http://localhost:' + str(serverPort))
myThread = threading.Thread(name='testinterrupt',
target=interrupt,
args=(self, ))
# Set the global interrupt
hodInterrupt.setFlag()
myThread.start()
myThread.join()
pass
def _register_service(self, port=None, installSignalHandlers=1):
if self.__svcrgy:
self.logs['main'].info(
"Registering service with service registery %s... " %
self.__svcrgy)
svcrgy = hodXRClient(self.__svcrgy, None, None, 0, 0,
installSignalHandlers)
if self._xrc and self._http:
svcrgy.registerService(
self._cfg['userid'], self._serviceID, self.hostname,
self.name, 'hod', {
'xrs':
"http://%s:%s" % (self._xrc.server_address[0],
self._xrc.server_address[1]),
'http':
"http://%s:%s" % (self._http.server_address[0],
self._http.server_address[1])
})
elif self._xrc:
svcrgy.registerService(
self._cfg['userid'], self._serviceID, self.hostname,
self.name, 'hod', {
'xrs':
"http://%s:%s" % (self._xrc.server_address[0],
self._xrc.server_address[1]),
})
elif self._http:
svcrgy.registerService(
self._cfg['userid'], self._serviceID, self.hostname,
self.name, 'hod', {
'http':
"http://%s:%s" % (self._http.server_address[0],
self._http.server_address[1]),
})
else:
svcrgy.registerService(self._cfg['userid'], self._serviceID,
self.hostname, name, 'hod', {})
def __init__(self, cfg, log, **kwds):
"""starts nodepool and services"""
self.download = False
self.httpServer = None
self.cfg = cfg
self.log = log
self.__hostname = local_fqdn()
self.workDirs = None
# ref to the idle job tracker object.
self.__jtMonitor = None
self.__idlenessDetected = False
self.__stopInProgress = False
self.__isStopped = False # to let main exit
self.__exitCode = 0 # exit code with which the ringmaster main method should return
self.workers_per_ring = self.cfg["ringmaster"]["workers_per_ring"]
self.__initialize_signal_handlers()
sdd = self.cfg["servicedesc"]
gsvc = None
for key in sdd:
gsvc = sdd[key]
break
npd = self.cfg["nodepooldesc"]
self.np = NodePoolUtil.getNodePool(npd, cfg, log)
self.log.debug("Getting service ID.")
self.serviceId = self.np.getServiceId()
self.log.debug("Got service ID: %s" % self.serviceId)
self.tarSrcLoc = None
if self.cfg["ringmaster"].has_key("hadoop-tar-ball"):
self.download = True
self.tarSrcLoc = self.cfg["ringmaster"]["hadoop-tar-ball"]
self.cd_to_tempdir()
if self.download:
self.__copy_tarball(os.getcwd())
self.basename = self.__find_tarball_in_dir(os.getcwd())
if self.basename is None:
raise Exception("Did not find tarball copied from %s in %s." % (self.tarSrcLoc, os.getcwd()))
self.serviceAddr = to_http_url(self.cfg["ringmaster"]["svcrgy-addr"])
self.log.debug("Service registry @ %s" % self.serviceAddr)
self.serviceClient = hodXRClient(self.serviceAddr)
self.serviceDict = {}
try:
sdl = self.cfg["servicedesc"]
workDirs = self.getWorkDirs(cfg)
hdfsDesc = sdl["hdfs"]
hdfs = None
# Determine hadoop Version
hadoopVers = hadoopVersion(self.__getHadoopDir(), self.cfg["hodring"]["java-home"], self.log)
if (hadoopVers["major"] == None) or (hadoopVers["minor"] == None):
raise Exception(
"Could not retrive the version of Hadoop."
+ " Check the Hadoop installation or the value of the hodring.java-home variable."
)
if hdfsDesc.isExternal():
hdfs = HdfsExternal(hdfsDesc, workDirs, version=int(hadoopVers["minor"]))
hdfs.setMasterParams(self.cfg["gridservice-hdfs"])
else:
hdfs = Hdfs(
hdfsDesc, workDirs, 0, version=int(hadoopVers["minor"]), workers_per_ring=self.workers_per_ring
)
self.serviceDict[hdfs.getName()] = hdfs
mrDesc = sdl["mapred"]
mr = None
if mrDesc.isExternal():
mr = MapReduceExternal(mrDesc, workDirs, version=int(hadoopVers["minor"]))
mr.setMasterParams(self.cfg["gridservice-mapred"])
else:
mr = MapReduce(
mrDesc, workDirs, 1, version=int(hadoopVers["minor"]), workers_per_ring=self.workers_per_ring
)
self.serviceDict[mr.getName()] = mr
except:
self.log.critical(
"Exception in creating Hdfs and Map/Reduce descriptor objects: \
%s."
% get_exception_error_string()
)
self.log.debug(get_exception_string())
raise
# should not be starting these in a constructor
ringMasterServer.startService(self.serviceDict, cfg, self.np, log, self)
self.rpcserver = ringMasterServer.getAddress()
self.httpAddress = None
self.tarAddress = None
hostname = socket.gethostname()
if self.download:
self.httpServer = threadedHTTPServer(hostname, self.cfg["ringmaster"]["http-port-range"])
self.httpServer.serve_forever()
self.httpAddress = "http://%s:%d/" % (self.httpServer.server_address[0], self.httpServer.server_address[1])
self.tarAddress = "%s%s" % (self.httpAddress, self.basename)
ringMasterServer.instance.logMasterSources.registerTarSource(hostname, self.tarAddress)
else:
self.log.debug("Download not set.")
self.log.debug(
"%s %s %s %s %s" % (self.cfg["ringmaster"]["userid"], self.serviceId, self.__hostname, "ringmaster", "hod")
)
if self.cfg["ringmaster"]["register"]:
if self.httpAddress:
self.serviceClient.registerService(
self.cfg["ringmaster"]["userid"],
self.serviceId,
self.__hostname,
"ringmaster",
"hod",
{"xrs": self.rpcserver, "http": self.httpAddress},
)
else:
self.serviceClient.registerService(
self.cfg["ringmaster"]["userid"],
self.serviceId,
self.__hostname,
"ringmaster",
"hod",
{"xrs": self.rpcserver},
)
self.log.debug("Registered with serivce registry: %s." % self.serviceAddr)
hodRingPath = os.path.join(cfg["ringmaster"]["base-dir"], "bin", "hodring")
hodRingWorkDir = os.path.join(cfg["hodring"]["temp-dir"], "hodring" + "_" + getpass.getuser())
self.cfg["hodring"]["hodring"] = [hodRingWorkDir]
self.cfg["hodring"]["svcrgy-addr"] = self.cfg["ringmaster"]["svcrgy-addr"]
self.cfg["hodring"]["service-id"] = self.np.getServiceId()
self.cfg["hodring"]["ringmaster-xrs-addr"] = self.__url_to_addr(self.rpcserver)
if self.tarSrcLoc != None:
cfg["hodring"]["download-addr"] = self.tarAddress
self.__init_job_tracker_monitor(ringMasterServer.instance.logMasterSources)
def testFailure(self):
"""HOD should raise Exception when unregistered rpc is called"""
global serverPort
client = hodXRClient('http://localhost:' + str(serverPort), retryRequests=False)
self.assertRaises(Exception, client.noMethod)
pass
def start(self):
"""Run and maintain hodring commands"""
try:
if self._cfg.has_key('download-addr'):
self._http = threadedHTTPServer('', self._cfg['http-port-range'])
self.log.info("Starting http server...")
self._http.serve_forever()
self.log.debug("http://%s:%d" % (self._http.server_address[0],
self._http.server_address[1]))
hodBaseService.start(self)
ringXRAddress = None
if self._cfg.has_key('ringmaster-xrs-addr'):
ringXRAddress = "http://%s:%s/" % (self._cfg['ringmaster-xrs-addr'][0],
self._cfg['ringmaster-xrs-addr'][1])
self.log.debug("Ringmaster at %s" % ringXRAddress)
self.log.debug("Creating service registry XML-RPC client.")
serviceClient = hodXRClient(to_http_url(
self._cfg['svcrgy-addr']))
if ringXRAddress == None:
self.log.info("Did not get ringmaster XML-RPC address. Fetching information from service registry.")
ringList = serviceClient.getServiceInfo(self._cfg['userid'],
self._cfg['service-id'], 'ringmaster', 'hod')
self.log.debug(pprint.pformat(ringList))
if len(ringList):
if isinstance(ringList, list):
ringXRAddress = ringList[0]['xrs']
count = 0
while (ringXRAddress == None and count < 3000):
ringList = serviceClient.getServiceInfo(self._cfg['userid'],
self._cfg['service-id'], 'ringmaster', 'hod')
if len(ringList):
if isinstance(ringList, list):
ringXRAddress = ringList[0]['xrs']
count = count + 1
time.sleep(.2)
if ringXRAddress == None:
raise Exception("Could not get ringmaster XML-RPC server address.")
self.log.debug("Creating ringmaster XML-RPC client.")
ringClient = hodXRClient(ringXRAddress)
id = self.hostname + "_" + str(os.getpid())
if 'download-addr' in self._cfg:
self.__download_package(ringClient)
else:
self.log.debug("Did not find a download address.")
cmdlist = []
firstTime = True
increment = 0
hadoopStartupTime = 2
cmdlist = ringClient.getCommand(id)
while (cmdlist == []):
if firstTime:
sleepTime = increment + self._cfg['cmd-retry-initial-time'] + hadoopStartupTime\
+ random.uniform(0,self._cfg['cmd-retry-interval'])
firstTime = False
else:
sleepTime = increment + self._cfg['cmd-retry-initial-time'] + \
+ random.uniform(0,self._cfg['cmd-retry-interval'])
self.log.debug("Did not get command list. Waiting for %s seconds." % (sleepTime))
time.sleep(sleepTime)
increment = increment + 1
cmdlist = ringClient.getCommand(id)
self.log.debug(pformat(cmdlist))
cmdDescs = []
for cmds in cmdlist:
cmdDescs.append(CommandDesc(cmds['dict'], self.log))
self._cfg['commanddesc'] = cmdDescs
self.log.info("Running hadoop commands...")
self.__run_hadoop_commands(False)
masterParams = []
for k, cmd in self.__running.iteritems():
masterParams.extend(cmd.filledInKeyVals)
self.log.debug("printing getparams")
self.log.debug(pformat(id))
self.log.debug(pformat(masterParams))
# when this is on a required host, the ringMaster already has our masterParams
if(len(masterParams) > 0):
ringClient.addMasterParams(id, masterParams)
except Exception, e:
raise Exception(e)
def allocate(self, clusterDir, min, max=None):
status = 0
failureCount = 0
self.__svcrgyClient = self.__get_svcrgy_client()
self.__log.debug("allocate %s %s %s" % (clusterDir, min, max))
if min < 3:
self.__log.critical("Minimum nodes must be greater than 2.")
status = 2
else:
nodeSet = self.__nodePool.newNodeSet(min)
walltime = None
if self.__cfg['hod'].has_key('walltime'):
walltime = self.__cfg['hod']['walltime']
self.jobId, exitCode = self.__nodePool.submitNodeSet(nodeSet, walltime)
# if the job submission returned an error other than no resources
# retry a couple of times
while (self.jobId is False) and (exitCode != 188):
if hodInterrupt.isSet():
raise HodInterruptException()
failureCount += 1
if (failureCount >= self.__cfg['hod']['job-status-query-failure-retries']):
self.__log.debug("failed submitting job more than the retries. exiting")
break
else:
# wait a bit before retrying
time.sleep(self.__cfg['hod']['job-command-failure-interval'])
if hodInterrupt.isSet():
raise HodInterruptException()
self.jobId, exitCode = self.__nodePool.submitNodeSet(nodeSet, walltime)
if self.jobId:
jobStatus = None
try:
jobStatus = self.__check_job_status()
except HodInterruptException, h:
self.__log.info(HOD_INTERRUPTED_MESG)
self.delete_job(self.jobId)
self.__log.info("Cluster %s removed from queue." % self.jobId)
raise h
else:
if jobStatus == -1:
self.delete_job(self.jobId);
status = 4
return status
if jobStatus:
self.__log.info("Cluster Id %s" \
% self.jobId)
try:
self.ringmasterXRS = self.__get_ringmaster_client()
self.__log.debug("Ringmaster at : %s" % self.ringmasterXRS )
ringClient = None
if self.ringmasterXRS:
ringClient = hodXRClient(self.ringmasterXRS)
hdfsStatus, hdfsAddr, self.hdfsInfo = \
self.__init_hadoop_service('hdfs', ringClient)
if hdfsStatus:
self.__log.info("HDFS UI at http://%s" % self.hdfsInfo)
mapredStatus, mapredAddr, self.mapredInfo = \
self.__init_hadoop_service('mapred', ringClient)
if mapredStatus:
self.__log.info("Mapred UI at http://%s" % self.mapredInfo)
if self.__cfg['hod'].has_key('update-worker-info') \
and self.__cfg['hod']['update-worker-info']:
workerInfoMap = {}
workerInfoMap['HDFS UI'] = 'http://%s' % self.hdfsInfo
workerInfoMap['Mapred UI'] = 'http://%s' % self.mapredInfo
# Ringmaster URL sample format : http://hostname:port/
workerInfoMap['RM RPC Port'] = '%s' % self.ringmasterXRS.split(":")[2].strip("/")
if mapredAddr.find(':') != -1:
workerInfoMap['Mapred RPC Port'] = mapredAddr.split(':')[1]
ret = self.__nodePool.updateWorkerInfo(workerInfoMap, self.jobId)
if ret != 0:
self.__log.warn('Could not update HDFS and Mapred information.' \
'User Portal may not show relevant information.' \
'Error code=%s' % ret)
self.__cfg.replace_escape_seqs()
# Go generate the client side hadoop-site.xml now
# adding final-params as well, just so that conf on
# client-side and server-side are (almost) the same
clientParams = None
serverParams = {}
finalServerParams = {}
# client-params
if self.__cfg['hod'].has_key('client-params'):
clientParams = self.__cfg['hod']['client-params']
# server-params
if self.__cfg['gridservice-mapred'].has_key('server-params'):
serverParams.update(\
self.__cfg['gridservice-mapred']['server-params'])
if self.__cfg['gridservice-hdfs'].has_key('server-params'):
# note that if there are params in both mapred and hdfs
# sections, the ones in hdfs overwirte the ones in mapred
serverParams.update(\
self.__cfg['gridservice-hdfs']['server-params'])
# final-server-params
if self.__cfg['gridservice-mapred'].has_key(\
'final-server-params'):
finalServerParams.update(\
self.__cfg['gridservice-mapred']['final-server-params'])
if self.__cfg['gridservice-hdfs'].has_key(
'final-server-params'):
finalServerParams.update(\
self.__cfg['gridservice-hdfs']['final-server-params'])
clusterFactor = self.__cfg['hod']['cluster-factor']
tempDir = self.__cfg['hod']['temp-dir']
if not os.path.exists(tempDir):
os.makedirs(tempDir)
tempDir = os.path.join( tempDir, self.__cfg['hod']['userid']\
+ "." + self.jobId )
mrSysDir = getMapredSystemDirectory(self.__cfg['hodring']['mapred-system-dir-root'],\
self.__cfg['hod']['userid'], self.jobId)
self.__hadoopCfg.gen_site_conf(clusterDir, tempDir, min,\
hdfsAddr, mrSysDir, mapredAddr, clientParams,\
serverParams, finalServerParams,\
clusterFactor)
self.__log.info("hadoop-site.xml at %s" % clusterDir)
# end of hadoop-site.xml generation
else:
status = 8
else:
status = 7
else:
status = 6
if status != 0:
self.__log.debug("Cleaning up cluster id %s, as cluster could not be allocated." % self.jobId)
if ringClient is None:
self.delete_job(self.jobId)
else:
self.__log.debug("Calling rm.stop()")
ringClient.stopRM()
self.__log.debug("Returning from rm.stop()")
except HodInterruptException, h:
self.__log.info(HOD_INTERRUPTED_MESG)
if self.ringmasterXRS:
if ringClient is None:
ringClient = hodXRClient(self.ringmasterXRS)
self.__log.debug("Calling rm.stop()")
ringClient.stopRM()
self.__log.debug("Returning from rm.stop()")
self.__log.info("Cluster Shutdown by informing ringmaster.")
else:
self.delete_job(self.jobId)
self.__log.info("Cluster %s removed from queue directly." % self.jobId)
raise h
else:
self.__log.info("Exception in collecting Job tracker logs. Ignoring.")
rmAddr = None
if clusterInfo.has_key('ring'):
# format is http://host:port/ We need host:port
rmAddr = clusterInfo['ring'][7:]
if rmAddr.endswith('/'):
rmAddr = rmAddr[:-1]
if (rmAddr is None) or (not self.__isRingMasterAlive(rmAddr)):
# Cluster is already dead, don't try to contact ringmaster.
self.__nodePool.finalize()
status = 10 # As cluster is dead, we just set the status to 'cluster dead'.
else:
xrsAddr = clusterInfo['ring']
rmClient = hodXRClient(xrsAddr)
self.__log.debug('calling rm.stop')
rmClient.stopRM()
self.__log.debug('completed rm.stop')
# cleanup hod temp dirs
tempDir = os.path.join( self.__cfg['hod']['temp-dir'], \
self.__cfg['hod']['userid'] + "." + clusterInfo['jobid'] )
if os.path.exists(tempDir):
shutil.rmtree(tempDir)
return status
class hadoopScript:
def __init__(self, conf, execDir):
self.__environ = os.environ.copy()
def clusterStart(self, initialize=True):
"""Start a stopped mapreduce/dfs cluster"""
if initialize:
self.log.debug('clusterStart Method Invoked - Initialize')
else:
self.log.debug('clusterStart Method Invoked - No Initialize')
try:
self.log.debug("Creating service registry XML-RPC client.")
serviceClient = hodXRClient(to_http_url(self._cfg['svcrgy-addr']),
None, None, 0, 0, 0)
self.log.info(
"Fetching ringmaster information from service registry.")
count = 0
ringXRAddress = None
while (ringXRAddress == None and count < 3000):
ringList = serviceClient.getServiceInfo(
self._cfg['userid'], self._cfg['service-id'], 'ringmaster',
'hod')
if len(ringList):
if isinstance(ringList, list):
ringXRAddress = ringList[0]['xrs']
count = count + 1
if ringXRAddress == None:
raise Exception(
"Could not get ringmaster XML-RPC server address.")
self.log.debug("Creating ringmaster XML-RPC client.")
ringClient = hodXRClient(ringXRAddress, None, None, 0, 0, 0)
id = self.hostname + "_" + str(os.getpid())
cmdlist = []
if initialize:
if 'download-addr' in self._cfg:
self.__download_package(ringClient)
else:
self.log.debug("Did not find a download address.")
while (cmdlist == []):
cmdlist = ringClient.getCommand(id)
else:
while (cmdlist == []):
cmdlist = ringClient.getAdminCommand(id)
self.log.debug(pformat(cmdlist))
cmdDescs = []
for cmds in cmdlist:
cmdDescs.append(CommandDesc(cmds['dict'], self.log))
self._cfg['commanddesc'] = cmdDescs
if initialize:
self.log.info("Running hadoop commands again... - Initialize")
self.__run_hadoop_commands()
masterParams = []
for k, cmd in self.__running.iteritems():
self.log.debug(cmd)
masterParams.extend(cmd.filledInKeyVals)
self.log.debug("printing getparams")
self.log.debug(pformat(id))
self.log.debug(pformat(masterParams))
# when this is on a required host, the ringMaster already has our masterParams
if (len(masterParams) > 0):
ringClient.addMasterParams(id, masterParams)
else:
self.log.info(
"Running hadoop commands again... - No Initialize")
self.__run_hadoop_commands()
except:
self.log.error(get_exception_string())
return True
def start(self):
"""Run and maintain hodring commands"""
try:
if self._cfg.has_key('download-addr'):
self._http = threadedHTTPServer('',
self._cfg['http-port-range'])
self.log.info("Starting http server...")
self._http.serve_forever()
self.log.debug("http://%s:%d" % (self._http.server_address[0],
self._http.server_address[1]))
hodBaseService.start(self)
ringXRAddress = None
if self._cfg.has_key('ringmaster-xrs-addr'):
ringXRAddress = "http://%s:%s/" % (
self._cfg['ringmaster-xrs-addr'][0],
self._cfg['ringmaster-xrs-addr'][1])
self.log.debug("Ringmaster at %s" % ringXRAddress)
self.log.debug("Creating service registry XML-RPC client.")
serviceClient = hodXRClient(to_http_url(self._cfg['svcrgy-addr']))
if ringXRAddress == None:
self.log.info(
"Did not get ringmaster XML-RPC address. Fetching information from service registry."
)
ringList = serviceClient.getServiceInfo(
self._cfg['userid'], self._cfg['service-id'], 'ringmaster',
'hod')
self.log.debug(pprint.pformat(ringList))
if len(ringList):
if isinstance(ringList, list):
ringXRAddress = ringList[0]['xrs']
count = 0
while (ringXRAddress == None and count < 3000):
ringList = serviceClient.getServiceInfo(
self._cfg['userid'], self._cfg['service-id'],
'ringmaster', 'hod')
if len(ringList):
if isinstance(ringList, list):
ringXRAddress = ringList[0]['xrs']
count = count + 1
time.sleep(.2)
if ringXRAddress == None:
raise Exception(
"Could not get ringmaster XML-RPC server address.")
self.log.debug("Creating ringmaster XML-RPC client.")
ringClient = hodXRClient(ringXRAddress)
id = self.hostname + "_" + str(os.getpid())
if 'download-addr' in self._cfg:
self.__download_package(ringClient)
else:
self.log.debug("Did not find a download address.")
cmdlist = []
firstTime = True
increment = 0
hadoopStartupTime = 2
cmdlist = ringClient.getCommand(id)
while (cmdlist == []):
if firstTime:
sleepTime = increment + self._cfg['cmd-retry-initial-time'] + hadoopStartupTime\
+ random.uniform(0,self._cfg['cmd-retry-interval'])
firstTime = False
else:
sleepTime = increment + self._cfg['cmd-retry-initial-time'] + \
+ random.uniform(0,self._cfg['cmd-retry-interval'])
self.log.debug(
"Did not get command list. Waiting for %s seconds." %
(sleepTime))
time.sleep(sleepTime)
increment = increment + 1
cmdlist = ringClient.getCommand(id)
self.log.debug(pformat(cmdlist))
cmdDescs = []
for cmds in cmdlist:
cmdDescs.append(CommandDesc(cmds['dict'], self.log))
self._cfg['commanddesc'] = cmdDescs
self.log.info("Running hadoop commands...")
self.__run_hadoop_commands(False)
masterParams = []
for k, cmd in self.__running.iteritems():
masterParams.extend(cmd.filledInKeyVals)
self.log.debug("printing getparams")
self.log.debug(pformat(id))
self.log.debug(pformat(masterParams))
# when this is on a required host, the ringMaster already has our masterParams
if (len(masterParams) > 0):
ringClient.addMasterParams(id, masterParams)
except Exception, e:
raise Exception(e)
self.__log.info("Exception in collecting Job tracker logs. Ignoring.")
rmAddr = None
if clusterInfo.has_key('ring'):
# format is http://host:port/ We need host:port
rmAddr = clusterInfo['ring'][7:]
if rmAddr.endswith('/'):
rmAddr = rmAddr[:-1]
if (rmAddr is None) or (not self.__isRingMasterAlive(rmAddr)):
# Cluster is already dead, don't try to contact ringmaster.
self.__nodePool.finalize()
status = 10 # As cluster is dead, we just set the status to 'cluster dead'.
else:
xrsAddr = clusterInfo['ring']
rmClient = hodXRClient(xrsAddr)
self.__log.debug('calling rm.stop')
rmClient.stopRM()
self.__log.debug('completed rm.stop')
# cleanup hod temp dirs
tempDir = os.path.join( self.__cfg['hod']['temp-dir'], \
self.__cfg['hod']['userid'] + "." + clusterInfo['jobid'] )
if os.path.exists(tempDir):
shutil.rmtree(tempDir)
return status
class hadoopScript:
def __init__(self, conf, execDir):
self.__environ = os.environ.copy()
def __get_svcrgy_client(self): svcrgyUrl = to_http_url(self.__cfg['hod']['xrs-address']) return hodXRClient(svcrgyUrl)
def __get_svcrgy_client(self): svcrgyUrl = to_http_url(self.__cfg['hod']['xrs-address']) return hodXRClient(svcrgyUrl)
def allocate(self, clusterDir, min, max=None):
status = 0
failureCount = 0
self.__svcrgyClient = self.__get_svcrgy_client()
self.__log.debug("allocate %s %s %s" % (clusterDir, min, max))
if min < 3:
self.__log.critical("Minimum nodes must be greater than 2.")
status = 2
else:
nodeSet = self.__nodePool.newNodeSet(min)
walltime = None
if self.__cfg['hod'].has_key('walltime'):
walltime = self.__cfg['hod']['walltime']
self.jobId, exitCode = self.__nodePool.submitNodeSet(nodeSet, walltime)
# if the job submission returned an error other than no resources
# retry a couple of times
while (self.jobId is False) and (exitCode != 188):
if hodInterrupt.isSet():
raise HodInterruptException()
failureCount += 1
if (failureCount >= self.__cfg['hod']['job-status-query-failure-retries']):
self.__log.debug("failed submitting job more than the retries. exiting")
break
else:
# wait a bit before retrying
time.sleep(self.__cfg['hod']['job-command-failure-interval'])
if hodInterrupt.isSet():
raise HodInterruptException()
self.jobId, exitCode = self.__nodePool.submitNodeSet(nodeSet, walltime)
if self.jobId:
jobStatus = None
try:
jobStatus = self.__check_job_status()
except HodInterruptException, h:
self.__log.info(HOD_INTERRUPTED_MESG)
self.delete_job(self.jobId)
self.__log.info("Cluster %s removed from queue." % self.jobId)
raise h
else:
if jobStatus == -1:
self.delete_job(self.jobId);
status = 4
return status
if jobStatus:
self.__log.info("Cluster Id %s" \
% self.jobId)
try:
self.ringmasterXRS = self.__get_ringmaster_client()
self.__log.debug("Ringmaster at : %s" % self.ringmasterXRS )
ringClient = None
if self.ringmasterXRS:
ringClient = hodXRClient(self.ringmasterXRS)
hdfsStatus, hdfsAddr, self.hdfsInfo = \
self.__init_hadoop_service('hdfs', ringClient)
if hdfsStatus:
self.__log.info("HDFS UI at http://%s" % self.hdfsInfo)
mapredStatus, mapredAddr, self.mapredInfo = \
self.__init_hadoop_service('mapred', ringClient)
if mapredStatus:
self.__log.info("Mapred UI at http://%s" % self.mapredInfo)
if self.__cfg['hod'].has_key('update-worker-info') \
and self.__cfg['hod']['update-worker-info']:
workerInfoMap = {}
workerInfoMap['HDFS UI'] = 'http://%s' % self.hdfsInfo
workerInfoMap['Mapred UI'] = 'http://%s' % self.mapredInfo
if mapredAddr.find(':') != -1:
workerInfoMap['Mapred RPC Port'] = mapredAddr.split(':')[1]
ret = self.__nodePool.updateWorkerInfo(workerInfoMap, self.jobId)
if ret != 0:
self.__log.warn('Could not update HDFS and Mapred information.' \
'User Portal may not show relevant information.' \
'Error code=%s' % ret)
self.__cfg.replace_escape_seqs()
# Go generate the client side hadoop-site.xml now
# adding final-params as well, just so that conf on
# client-side and server-side are (almost) the same
clientParams = None
serverParams = {}
finalServerParams = {}
# client-params
if self.__cfg['hod'].has_key('client-params'):
clientParams = self.__cfg['hod']['client-params']
# server-params
if self.__cfg['gridservice-mapred'].has_key('server-params'):
serverParams.update(\
self.__cfg['gridservice-mapred']['server-params'])
if self.__cfg['gridservice-hdfs'].has_key('server-params'):
# note that if there are params in both mapred and hdfs
# sections, the ones in hdfs overwirte the ones in mapred
serverParams.update(\
self.__cfg['gridservice-hdfs']['server-params'])
# final-server-params
if self.__cfg['gridservice-mapred'].has_key(\
'final-server-params'):
finalServerParams.update(\
self.__cfg['gridservice-mapred']['final-server-params'])
if self.__cfg['gridservice-hdfs'].has_key(
'final-server-params'):
finalServerParams.update(\
self.__cfg['gridservice-hdfs']['final-server-params'])
clusterFactor = self.__cfg['hod']['cluster-factor']
tempDir = self.__cfg['hod']['temp-dir']
if not os.path.exists(tempDir):
os.makedirs(tempDir)
tempDir = os.path.join( tempDir, self.__cfg['hod']['userid']\
+ "." + self.jobId )
mrSysDir = getMapredSystemDirectory(self.__cfg['hodring']['mapred-system-dir-root'],\
self.__cfg['hod']['userid'], self.jobId)
self.__hadoopCfg.gen_site_conf(clusterDir, tempDir, min,\
hdfsAddr, mrSysDir, mapredAddr, clientParams,\
serverParams, finalServerParams,\
clusterFactor)
self.__log.info("hadoop-site.xml at %s" % clusterDir)
# end of hadoop-site.xml generation
else:
status = 8
else:
status = 7
else:
status = 6
if status != 0:
self.__log.debug("Cleaning up cluster id %s, as cluster could not be allocated." % self.jobId)
if ringClient is None:
self.delete_job(self.jobId)
else:
self.__log.debug("Calling rm.stop()")
ringClient.stopRM()
self.__log.debug("Returning from rm.stop()")
except HodInterruptException, h:
self.__log.info(HOD_INTERRUPTED_MESG)
if self.ringmasterXRS:
if ringClient is None:
ringClient = hodXRClient(self.ringmasterXRS)
self.__log.debug("Calling rm.stop()")
ringClient.stopRM()
self.__log.debug("Returning from rm.stop()")
self.__log.info("Cluster Shutdown by informing ringmaster.")
else:
self.delete_job(self.jobId)
self.__log.info("Cluster %s removed from queue directly." % self.jobId)
raise h
else:
def __init__(self, cfg, log, **kwds):
"""starts nodepool and services"""
self.download = False
self.httpServer = None
self.cfg = cfg
self.log = log
self.__hostname = local_fqdn()
self.workDirs = None
# ref to the idle job tracker object.
self.__jtMonitor = None
self.__idlenessDetected = False
self.__stopInProgress = False
self.__isStopped = False # to let main exit
self.__exitCode = 0 # exit code with which the ringmaster main method should return
self.workers_per_ring = self.cfg['ringmaster']['workers_per_ring']
self.__initialize_signal_handlers()
sdd = self.cfg['servicedesc']
gsvc = None
for key in sdd:
gsvc = sdd[key]
break
npd = self.cfg['nodepooldesc']
self.np = NodePoolUtil.getNodePool(npd, cfg, log)
self.log.debug("Getting service ID.")
self.serviceId = self.np.getServiceId()
self.log.debug("Got service ID: %s" % self.serviceId)
self.tarSrcLoc = None
if self.cfg['ringmaster'].has_key('hadoop-tar-ball'):
self.download = True
self.tarSrcLoc = self.cfg['ringmaster']['hadoop-tar-ball']
self.cd_to_tempdir()
if (self.download):
self.__copy_tarball(os.getcwd())
self.basename = self.__find_tarball_in_dir(os.getcwd())
if self.basename is None:
raise Exception('Did not find tarball copied from %s in %s.' %
(self.tarSrcLoc, os.getcwd()))
self.serviceAddr = to_http_url(self.cfg['ringmaster']['svcrgy-addr'])
self.log.debug("Service registry @ %s" % self.serviceAddr)
self.serviceClient = hodXRClient(self.serviceAddr)
self.serviceDict = {}
try:
sdl = self.cfg['servicedesc']
workDirs = self.getWorkDirs(cfg)
hdfsDesc = sdl['hdfs']
hdfs = None
# Determine hadoop Version
hadoopVers = hadoopVersion(self.__getHadoopDir(), \
self.cfg['hodring']['java-home'], self.log)
if (hadoopVers['major'] == None) or (hadoopVers['minor'] == None):
raise Exception(
'Could not retrive the version of Hadoop.' +
' Check the Hadoop installation or the value of the hodring.java-home variable.'
)
if hdfsDesc.isExternal():
hdfs = HdfsExternal(hdfsDesc,
workDirs,
version=int(hadoopVers['minor']))
hdfs.setMasterParams(self.cfg['gridservice-hdfs'])
else:
hdfs = Hdfs(hdfsDesc,
workDirs,
0,
version=int(hadoopVers['minor']),
workers_per_ring=self.workers_per_ring)
self.serviceDict[hdfs.getName()] = hdfs
mrDesc = sdl['mapred']
mr = None
if mrDesc.isExternal():
mr = MapReduceExternal(mrDesc,
workDirs,
version=int(hadoopVers['minor']))
mr.setMasterParams(self.cfg['gridservice-mapred'])
else:
mr = MapReduce(mrDesc,
workDirs,
1,
version=int(hadoopVers['minor']),
workers_per_ring=self.workers_per_ring)
self.serviceDict[mr.getName()] = mr
except:
self.log.critical(
"Exception in creating Hdfs and Map/Reduce descriptor objects: \
%s." % get_exception_error_string())
self.log.debug(get_exception_string())
raise
# should not be starting these in a constructor
ringMasterServer.startService(self.serviceDict, cfg, self.np, log,
self)
self.rpcserver = ringMasterServer.getAddress()
self.httpAddress = None
self.tarAddress = None
hostname = socket.gethostname()
if (self.download):
self.httpServer = threadedHTTPServer(
hostname, self.cfg['ringmaster']['http-port-range'])
self.httpServer.serve_forever()
self.httpAddress = "http://%s:%d/" % (
self.httpServer.server_address[0],
self.httpServer.server_address[1])
self.tarAddress = "%s%s" % (self.httpAddress, self.basename)
ringMasterServer.instance.logMasterSources.registerTarSource(
hostname, self.tarAddress)
else:
self.log.debug("Download not set.")
self.log.debug("%s %s %s %s %s" %
(self.cfg['ringmaster']['userid'], self.serviceId,
self.__hostname, 'ringmaster', 'hod'))
if self.cfg['ringmaster']['register']:
if self.httpAddress:
self.serviceClient.registerService(
self.cfg['ringmaster']['userid'], self.serviceId,
self.__hostname, 'ringmaster', 'hod', {
'xrs': self.rpcserver,
'http': self.httpAddress
})
else:
self.serviceClient.registerService(
self.cfg['ringmaster']['userid'], self.serviceId,
self.__hostname, 'ringmaster', 'hod', {
'xrs': self.rpcserver,
})
self.log.debug("Registered with serivce registry: %s." %
self.serviceAddr)
hodRingPath = os.path.join(cfg['ringmaster']['base-dir'], 'bin',
'hodring')
hodRingWorkDir = os.path.join(cfg['hodring']['temp-dir'],
'hodring' + '_' + getpass.getuser())
self.cfg['hodring']['hodring'] = [
hodRingWorkDir,
]
self.cfg['hodring']['svcrgy-addr'] = self.cfg['ringmaster'][
'svcrgy-addr']
self.cfg['hodring']['service-id'] = self.np.getServiceId()
self.cfg['hodring']['ringmaster-xrs-addr'] = self.__url_to_addr(
self.rpcserver)
if (self.tarSrcLoc != None):
cfg['hodring']['download-addr'] = self.tarAddress
self.__init_job_tracker_monitor(
ringMasterServer.instance.logMasterSources)
def testSuccess(self):
global serverPort
client = hodXRClient('http://localhost:' + str(serverPort),
retryRequests=False)
self.assertEqual(client.testing(), True)
pass
def clusterStart(self, initialize=True):
"""Start a stopped mapreduce/dfs cluster"""
if initialize:
self.log.debug('clusterStart Method Invoked - Initialize')
else:
self.log.debug('clusterStart Method Invoked - No Initialize')
try:
self.log.debug("Creating service registry XML-RPC client.")
serviceClient = hodXRClient(to_http_url(self._cfg['svcrgy-addr']),
None, None, 0, 0, 0)
self.log.info("Fetching ringmaster information from service registry.")
count = 0
ringXRAddress = None
while (ringXRAddress == None and count < 3000):
ringList = serviceClient.getServiceInfo(self._cfg['userid'],
self._cfg['service-id'], 'ringmaster', 'hod')
if len(ringList):
if isinstance(ringList, list):
ringXRAddress = ringList[0]['xrs']
count = count + 1
if ringXRAddress == None:
raise Exception("Could not get ringmaster XML-RPC server address.")
self.log.debug("Creating ringmaster XML-RPC client.")
ringClient = hodXRClient(ringXRAddress, None, None, 0, 0, 0)
id = self.hostname + "_" + str(os.getpid())
cmdlist = []
if initialize:
if 'download-addr' in self._cfg:
self.__download_package(ringClient)
else:
self.log.debug("Did not find a download address.")
while (cmdlist == []):
cmdlist = ringClient.getCommand(id)
else:
while (cmdlist == []):
cmdlist = ringClient.getAdminCommand(id)
self.log.debug(pformat(cmdlist))
cmdDescs = []
for cmds in cmdlist:
cmdDescs.append(CommandDesc(cmds['dict'], self.log))
self._cfg['commanddesc'] = cmdDescs
if initialize:
self.log.info("Running hadoop commands again... - Initialize")
self.__run_hadoop_commands()
masterParams = []
for k, cmd in self.__running.iteritems():
self.log.debug(cmd)
masterParams.extend(cmd.filledInKeyVals)
self.log.debug("printing getparams")
self.log.debug(pformat(id))
self.log.debug(pformat(masterParams))
# when this is on a required host, the ringMaster already has our masterParams
if(len(masterParams) > 0):
ringClient.addMasterParams(id, masterParams)
else:
self.log.info("Running hadoop commands again... - No Initialize")
self.__run_hadoop_commands()
except:
self.log.error(get_exception_string())
return True
def testSuccess(self):
global serverPort
client = hodXRClient('http://localhost:' + str(serverPort), retryRequests=False)
self.assertEqual(client.testing(), True)
pass
