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https://issues.apache.org/jira/browse/HBASE-8871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13700101#comment-13700101
]
Hadoop QA commented on HBASE-8871:
----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12590889/8871.v1.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 hadoop1.0{color}. The patch compiles against the hadoop
1.0 profile.
{color:green}+1 hadoop2.0{color}. The patch compiles against the hadoop
2.0 profile.
{color:red}-1 javadoc{color}. The javadoc tool appears to have generated 2
warning messages.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 lineLengths{color}. The patch does not introduce lines
longer than 100
{color:green}+1 site{color}. The mvn site goal succeeds with this patch.
{color:green}+1 core tests{color}. The patch passed unit tests in .
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/6217//console
This message is automatically generated.
> The region server can crash at startup
> --------------------------------------
>
> Key: HBASE-8871
> URL: https://issues.apache.org/jira/browse/HBASE-8871
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.98.0, 0.95.2
> Reporter: Nicolas Liochon
> Assignee: Nicolas Liochon
> Attachments: 8871.v1.patch
>
>
> I have this stack when I start a fresh region server. 5% of the time I would
> say (per region server).
> {code}
> 2013-07-04 12:00:22,609 FATAL [regionserver60020] regionserver.HRegionServer:
> ABORTING region server ip-10-137-7-67.ec2.internal,60020,1372939221819:
> Initialization of RS failed. Hence aborting RS.
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1200)
> at
> org.apache.hadoop.conf.Configuration.iterator(Configuration.java:1820)
> at
> org.apache.hadoop.hbase.zookeeper.ZKConfig.makeZKProps(ZKConfig.java:92)
> at
> org.apache.hadoop.hbase.zookeeper.ZKConfig.getZKQuorumServersString(ZKConfig.java:267)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:158)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:133)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.initializeZooKeeper(HRegionServer.java:667)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.preRegistrationInitialization(HRegionServer.java:647)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:778)
> at java.lang.Thread.run(Thread.java:722)
> 2013-07-04 12:00:22,614 FATAL [regionserver60020] regionserver.HRegionServer:
> RegionServer abort: loaded coprocessors are: []
> 2013-07-04 12:00:22,614 INFO [regionserver60020] regionserver.HRegionServer:
> STOPPED: Initialization of RS failed. Hence aborting RS.
> 2013-07-04 12:00:22,616 FATAL [regionserver60020] regionserver.HRegionServer:
> ABORTING region server ip-10-137-7-67.ec2.internal,60020,1372939221819:
> Unhandled: null
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:798)
> at java.lang.Thread.run(Thread.java:722)
> 2013-07-04 12:00:22,616 FATAL [regionserver60020] regionserver.HRegionServer:
> RegionServer abort: loaded coprocessors are: []
> 2013-07-04 12:00:22,617 INFO [regionserver60020] regionserver.HRegionServer:
> STOPPED: Unhandled: null
> 2013-07-04 12:00:22,767 INFO [main] regionserver.ShutdownHook: Installed
> shutdown hook thread: Shutdownhook:regionserver60020
> 2013-07-04 12:00:22,768 ERROR [main] regionserver.HRegionServerCommandLine:
> Region server exiting
> java.lang.RuntimeException: HRegionServer Aborted
> at
> org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.start(HRegionServerCommandLine.java:66)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.run(HRegionServerCommandLine.java:85)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at
> org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:78)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.main(HRegionServer.java:2309)
> 2013-07-04 12:00:22,770 INFO [Thread-4] regionserver.ShutdownHook: Shutdown
> hook starting; hbase.shutdown.hook=true;
> fsShutdownHook=org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer@21f0dbb9
> {code}
> There is one bug here in the region server: we should not start the snapshot
> if the machine is supposed to stop:
> {code}
> // start the snapshot handler, since the server is ready to run
> this.snapshotManager.start();
> {code}
> and the root cause is here in ZKConfig:
> {code}
> for (Entry<String, String> entry : conf) { // <=== BUG
> String key = entry.getKey();
> if (key.startsWith(HConstants.ZK_CFG_PROPERTY_PREFIX)) {
> String zkKey = key.substring(HConstants.ZK_CFG_PROPERTY_PREFIX_LEN);
> String value = entry.getValue();
> // If the value has variables substitutions, need to do a get.
> if (value.contains(VARIABLE_START)) {
> value = conf.get(key);
> }
> zkProperties.put(zkKey, value);
> }
> {code}
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