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Posted to common-commits@hadoop.apache.org by dd...@apache.org on 2008/06/03 15:37:55 UTC
svn commit: r662795 [2/2] - in /hadoop/core/trunk: docs/ src/contrib/hod/
src/contrib/hod/bin/ src/contrib/hod/hodlib/Common/
src/contrib/hod/hodlib/Hod/ src/contrib/hod/hodlib/NodePools/
src/contrib/hod/support/ src/docs/src/documentation/content/xdocs/
Modified: hadoop/core/trunk/docs/hod_user_guide.pdf
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/docs/hod_user_guide.pdf?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/docs/hod_user_guide.pdf (original)
+++ hadoop/core/trunk/docs/hod_user_guide.pdf Tue Jun 3 06:37:54 2008
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trailer
<<
/Size 146
@@ -1294,5 +1294,5 @@
/Info 4 0 R
>>
startxref
-65173
+65238
%%EOF
Modified: hadoop/core/trunk/src/contrib/hod/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/CHANGES.txt?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/CHANGES.txt (original)
+++ hadoop/core/trunk/src/contrib/hod/CHANGES.txt Tue Jun 3 06:37:54 2008
@@ -8,6 +8,10 @@
NEW FEATURES
IMPROVEMENTS
+
+ HADOOP-3376: Provide a mechanism to detect and handle violations to
+ resource manager limits. (Vinod Kumar Vavilapalli via ddas)
+
BUG FIXES
Modified: hadoop/core/trunk/src/contrib/hod/bin/hod
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/bin/hod?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/bin/hod (original)
+++ hadoop/core/trunk/src/contrib/hod/bin/hod Tue Jun 3 06:37:54 2008
@@ -49,7 +49,8 @@
from hodlib.Common.descGenerator import *
from hodlib.Common.util import local_fqdn, need_to_allocate, filter_warnings,\
get_exception_error_string, hodInterrupt, \
- HOD_INTERRUPTED_MESG, HOD_INTERRUPTED_CODE
+ HOD_INTERRUPTED_MESG, HOD_INTERRUPTED_CODE,\
+ TORQUE_USER_LIMITS_COMMENT_FIELD
from hodlib.Common.tcp import tcpError, tcpSocket
from hodlib.Hod.hod import hodHelp
@@ -145,6 +146,9 @@
('update-worker-info', 'bool', 'Specifies whether to update Worker Info after allocation',
False, False, False, True),
+ ('job-feasibility-attr', 'string', 'Specifies whether to check job feasibility - resource manager and/or scheduler limits, also gives the attribute value',
+ False, None, False, True),
+
('title', 'string', 'Title for the current HOD allocation.',
True, "HOD", False, True, 'N'),
Modified: hadoop/core/trunk/src/contrib/hod/hodlib/Common/setup.py
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/hodlib/Common/setup.py?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/hodlib/Common/setup.py (original)
+++ hadoop/core/trunk/src/contrib/hod/hodlib/Common/setup.py Tue Jun 3 06:37:54 2008
@@ -34,7 +34,7 @@
reComma = re.compile("\s*,\s*")
reDot = re.compile("\.")
reCommentHack = re.compile("^.*?\s+#|;.*", flags=re.S)
-reCommentNewline = re.compile("\W$")
+reCommentNewline = re.compile("\n|\r$")
reKeyVal = r"(?<!\\)="
reKeyVal = re.compile(reKeyVal)
reKeyValList = r"(?<!\\),"
Modified: hadoop/core/trunk/src/contrib/hod/hodlib/Common/util.py
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/hodlib/Common/util.py?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/hodlib/Common/util.py (original)
+++ hadoop/core/trunk/src/contrib/hod/hodlib/Common/util.py Tue Jun 3 06:37:54 2008
@@ -24,6 +24,10 @@
HOD_INTERRUPTED_CODE = 127
HOD_INTERRUPTED_MESG = "Hod interrupted. Cleaning up and exiting"
+TORQUE_USER_LIMITS_COMMENT_FIELD = "User-limits exceeded. " + \
+ "Requested:([0-9]*) Used:([0-9]*) MaxLimit:([0-9]*)"
+TORQUE_USER_LIMITS_EXCEEDED_MSG = "Requested number of nodes exceeded " + \
+ "maximum user limits. "
class AlarmException(Exception):
def __init__(self, msg=''):
Modified: hadoop/core/trunk/src/contrib/hod/hodlib/Hod/hadoop.py
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/hodlib/Hod/hadoop.py?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/hodlib/Hod/hadoop.py (original)
+++ hadoop/core/trunk/src/contrib/hod/hodlib/Hod/hadoop.py Tue Jun 3 06:37:54 2008
@@ -186,11 +186,14 @@
count = 0
status = False
state = 'Q'
+ userLimitsFirstFlag = True
+
while state == 'Q':
if hodInterrupt.isSet():
raise HodInterruptException()
- state = self.__nodePool.getJobState()
+ jobInfo = self.__nodePool.getJobInfo()
+ state = jobInfo['job_state']
if (state==False) or (state!='Q'):
break
count = count + 1
@@ -198,11 +201,28 @@
time.sleep(0.5)
else:
time.sleep(10)
-
+
+ if self.__cfg['hod'].has_key('job-feasibility-attr') and \
+ self.__cfg['hod']['job-feasibility-attr']:
+ (status, msg) = self.__isJobFeasible()
+ if status == "Never":
+ self.__log.critical(TORQUE_USER_LIMITS_EXCEEDED_MSG + msg + \
+ "This cluster cannot be allocated now.")
+ return -1
+ elif status == False:
+ if userLimitsFirstFlag:
+ self.__log.critical(TORQUE_USER_LIMITS_EXCEEDED_MSG + msg + \
+ "This cluster allocation will succeed only after other " + \
+ "clusters are deallocated.")
+ userLimitsFirstFlag = False
+
if state and state != 'C':
status = True
return status
+
+ def __isJobFeasible(self):
+ return self.__nodePool.isJobFeasible()
def __get_ringmaster_client(self):
ringmasterXRS = None
@@ -434,13 +454,19 @@
walltime = self.__cfg['hod']['walltime']
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("Job %s removed from queue." % 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" \
@@ -545,13 +571,13 @@
self.__log.debug("Calling rm.stop()")
ringClient.stopRM()
self.__log.debug("Returning from rm.stop()")
- self.__log.info("Job Shutdown by informing ringmaster.")
+ self.__log.info("Cluster Shutdown by informing ringmaster.")
else:
self.delete_job(self.jobId)
- self.__log.info("Job %s removed from queue directly." % self.jobId)
+ self.__log.info("Cluster %s removed from queue directly." % self.jobId)
raise h
else:
- self.__log.critical("No job found, ringmaster failed to run.")
+ self.__log.critical("No cluster found, ringmaster failed to run.")
status = 5
elif self.jobId == False:
Modified: hadoop/core/trunk/src/contrib/hod/hodlib/Hod/nodePool.py
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/hodlib/Hod/nodePool.py?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/hodlib/Hod/nodePool.py (original)
+++ hadoop/core/trunk/src/contrib/hod/hodlib/Hod/nodePool.py Tue Jun 3 06:37:54 2008
@@ -101,13 +101,17 @@
def getServiceId(self):
raise NotImplementedError
- def getJobState(self):
+ def getJobInfo(self):
raise NotImplementedError
def deleteJob(self, jobId):
"""Delete a job, given it's id"""
raise NotImplementedError
+ def isJobFeasible(self):
+ """Check if job can run by looking at any user/job limits"""
+ raise NotImplementedError
+
def updateWorkerInfo(self, workerInfoMap):
"""Update information about the workers started by this NodePool."""
raise NotImplementedError
Modified: hadoop/core/trunk/src/contrib/hod/hodlib/NodePools/torque.py
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/hodlib/NodePools/torque.py?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/hodlib/NodePools/torque.py (original)
+++ hadoop/core/trunk/src/contrib/hod/hodlib/NodePools/torque.py Tue Jun 3 06:37:54 2008
@@ -21,7 +21,8 @@
from hodlib.Hod.nodePool import *
from hodlib.Schedulers.torque import torqueInterface
from hodlib.Common.threads import simpleCommand
-from hodlib.Common.util import get_exception_string, args_to_string, local_fqdn
+from hodlib.Common.util import get_exception_string, args_to_string, local_fqdn, \
+ TORQUE_USER_LIMITS_COMMENT_FIELD
class TorqueNodeSet(NodeSet):
def __init__(self, id, numNodes, preferredList, isPreemptee):
@@ -201,6 +202,7 @@
jobId, exitCode = self.__torque.qsub(argList, stdinList)
+ ## UNUSED CODE: LINE ##
nodeSet.qsubId = jobId
return jobId, exitCode
@@ -224,6 +226,7 @@
return status
+ ## UNUSED METHOD ?? ##
def getWorkers(self):
hosts = []
@@ -233,6 +236,7 @@
return hosts
+ ## UNUSED METHOD ?? ##
def pollNodeSet(self, nodeSet):
status = NodeSet.COMPLETE
nodeSet = self.nodeSetDict[0]
@@ -264,17 +268,17 @@
return id
- def getJobState(self):
+ def getJobInfo(self):
#torque error code when credentials fail, a temporary condition sometimes.
credFailureErrorCode = 171
credFailureRetries = 10
i = 0
- jobState = False
+ self.__jobInfo = None
while i < credFailureRetries:
qstatInfo, exitCode = self.__torque.qstat(self.getServiceId())
if exitCode == 0:
- jobState = qstatInfo['job_state']
+ self.__jobInfo = qstatInfo
break
else:
if exitCode == credFailureErrorCode:
@@ -282,11 +286,35 @@
i = i+1
else:
break
- return jobState
+ return self.__jobInfo
def deleteJob(self, jobId):
exitCode = self.__torque.qdel(jobId)
return exitCode
+
+ def isJobFeasible(self):
+ comment = None
+ msg = None
+ if self.__jobInfo.has_key('comment'):
+ comment = self.__jobInfo['comment']
+ try:
+ if comment:
+ commentField = re.compile(self._cfg['hod']['job-feasibility-attr'])
+ match = commentField.search(comment)
+ if match:
+ reqUsage = int(match.group(1))
+ currentUsage = int(match.group(2))
+ maxUsage = int(match.group(3))
+ msg = "Current Usage:%s, Requested:%s, Maximum Limit:%s " % \
+ (currentUsage, reqUsage, maxUsage)
+ if reqUsage > maxUsage:
+ return "Never", msg
+ if reqUsage + currentUsage > maxUsage:
+ return False, msg
+ except Exception, e:
+ self._log.error("Error in isJobFeasible : %s" %e)
+ raise Exception(e)
+ return True, msg
def runWorkers(self, args):
return self.__torque.pbsdsh(args)
Added: hadoop/core/trunk/src/contrib/hod/support/checklimits.sh
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/contrib/hod/support/checklimits.sh?rev=662795&view=auto
==============================================================================
--- hadoop/core/trunk/src/contrib/hod/support/checklimits.sh (added)
+++ hadoop/core/trunk/src/contrib/hod/support/checklimits.sh Tue Jun 3 06:37:54 2008
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+COMMANDS=( "qstat" "qalter" "checkjob" )
+ERROR=0
+for (( i=0; i<${#COMMANDS[@]}; i++ ))
+do
+ cmd=${COMMANDS[$i]}
+ CMD_PATH=`which $cmd 2>/dev/null`
+ if [ $? -ne 0 ]
+ then
+ echo Could not find $cmd in PATH
+ ERROR=1
+ fi
+done
+if [ $ERROR -ne 0 ]
+then
+ exit 1
+fi
+
+jobs=`qstat -i |grep -o -e '^[0-9]*'`
+for job in $jobs
+do
+ echo -en "$job\t"
+ PATTERN="job [^ ]* violates active HARD MAXPROC limit of \([0-9]*\) for user [^ ]*[ ]*(R: \([0-9]*\), U: \([0-9]*\))"
+ OUT=`checkjob $job 2>&1|grep -o -e "$PATTERN"`
+ if [ $? -eq 0 ]
+ then
+ echo -en "| Exceeds resource limits\t"
+ COMMENT_FIELD=`echo $OUT|sed -e "s/$PATTERN/User-limits exceeded. Requested:\2 Used:\3 MaxLimit:\1/"`
+ qstat -f $job|grep '^[ \t]*comment = .*$' >/dev/null
+ if [ $? -ne 0 ]
+ then
+ echo -en "| Comment field updated\t"
+ qalter $job -W comment="$COMMENT_FIELD" >/dev/null
+ else
+ echo -en "| Comment field already set\t"
+ fi
+ else
+ echo -en "| Doesn't exceed limits.\t"
+ fi
+ echo
+done
Modified: hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_admin_guide.xml
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_admin_guide.xml?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_admin_guide.xml (original)
+++ hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_admin_guide.xml Tue Jun 3 06:37:54 2008
@@ -313,6 +313,32 @@
<p><em>python logcondense.py -p ~/hadoop-0.17.0/bin/hadoop -d 7 -c ~/hadoop-conf -l /user</em></p>
</section>
</section>
+ <section>
+ <title>checklimits.sh - Tool to update torque comment field reflecting resource limits</title>
+ <p>checklimits is a HOD tool specific to torque/maui environment. It
+ updates torque comment field when newly submitted job(s) violate/cross
+ over user limits set up in maui scheduler. It uses qstat, does one pass
+ over torque job list to find out queued or unfinished jobs, runs maui
+ tool checkjob on each job to see if user limits are violated and then
+ runs torque's qalter utility to update job attribute 'comment'. Currently
+ it updates the comment as <em>User-limits exceeded. Requested:([0-9]*)
+ Used:([0-9]*) MaxLimit:([0-9]*)</em> for those jobs that violate limits.
+ This comment field is then used by HOD to behave accordingly depending on
+ the type of violation.</p>
+ <section>
+ <title>Running checklimits.sh</title>
+ <p>checklimits.sh is available under hod_install_location/support
+ folder. This is a shell script and can be run directly as <em>sh
+ checklimits.sh </em>or as <em>./checklimits.sh</em> after enabling
+ execute permissions. In order for this tool to be able to update
+ comment field of jobs from different users, it has to be run with
+ torque administrative privileges. This tool has to be run repeatedly
+ after specific intervals of time to frequently update jobs violating
+ constraints, for e.g. via cron. Please note that the resource manager
+ and scheduler commands used in this script can be expensive and so
+ it is better not to run this inside a tight loop without sleeping.</p>
+ </section>
+ </section>
</section>
</body>
</document>
Modified: hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_config_guide.xml
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_config_guide.xml?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_config_guide.xml (original)
+++ hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_config_guide.xml Tue Jun 3 06:37:54 2008
@@ -104,6 +104,27 @@
specified as key-value pairs. These will be used to
generate a hadoop-site.xml on the submit node that
should be used for running MapReduce jobs.</li>
+ <li>job-feasibility-attr: A regular expression string that specifies
+ whether and how to check job feasibility - resource
+ manager or scheduler limits. The current
+ implementation corresponds to the torque job
+ attribute 'comment' and by default is disabled.
+ When set, HOD uses it to decide what type
+ of limit violation is triggered and either
+ deallocates the cluster or stays in queued state
+ according as the request is beyond maximum limits or
+ the cumulative usage has crossed maxumum limits.
+ The torque comment attribute may be updated
+ periodically by an external mechanism. For e.g.,
+ comment attribute can be updated by running <a href=
+"hod_admin_guide.html#checklimits.sh+-+Tool+to+update+torque+comment+field+reflecting+resource+limits">
+ checklimits.sh</a> script in hod/support directory,
+ and then setting job-feasibility-attr equal to the
+ value TORQUE_USER_LIMITS_COMMENT_FIELD i.e
+ "User-limits exceeded. Requested:([0-9]*)
+ Used:([0-9]*) MaxLimit:([0-9]*)" will make HOD
+ behave accordingly.
+ </li>
</ul>
</section>
Modified: hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_user_guide.xml
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_user_guide.xml?rev=662795&r1=662794&r2=662795&view=diff
==============================================================================
--- hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_user_guide.xml (original)
+++ hadoop/core/trunk/src/docs/src/documentation/content/xdocs/hod_user_guide.xml Tue Jun 3 06:37:54 2008
@@ -404,7 +404,8 @@
<td> 4 </td>
<td> Scheduler failure </td>
<td> 1. Requested more resources than available. Run <code>checknodes cluster_name</code> to see if enough nodes are available. <br />
- 2. Torque is misconfigured, the path to Torque binaries is misconfigured, or other Torque problems. Contact system administrator. </td>
+ 2. Requested resources exceed resource manager limits. <br />
+ 3. Torque is misconfigured, the path to Torque binaries is misconfigured, or other Torque problems. Contact system administrator. </td>
</tr>
<tr>
<td> 5 </td>