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https://issues.apache.org/jira/browse/HBASE-17374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15882130#comment-15882130
]
Liu Junhong commented on HBASE-17374:
-------------------------------------
Our ACL configuration is configed as below, it is configed since the hbase
version was 0.94, and result in this issue.
<property>
<name>hbase.coprocessor.region.classes</name>
<value>
org.apache.hadoop.hbase.security.token.TokenProvider,org.apache.hadoop.hbase.security.access.AccessController,org.apache.hadoop.hbase.security.access.SecureBulkLoadEndpoint,org.apache.hadoop.hbase.regionserver.ExternalMetricObserver
</value>
</property>
> ZKPermissionWatcher crashed when grant after region close
> ---------------------------------------------------------
>
> Key: HBASE-17374
> URL: https://issues.apache.org/jira/browse/HBASE-17374
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.98.15
> Reporter: Liu Junhong
> Assignee: Liu Junhong
> Priority: Critical
> Fix For: 2.0.0, 1.4.0
>
> Attachments: 0001-fix-for-HBASE-17374-20161228.patch,
> 0001-fix-for-HBASE-17374.patch
>
>
> It was occurred many time that I granted some permission, but few of some
> regionservers was not token effect and must be restart . When I look up logs,
> I found that :
> 2016-12-08 15:00:26,238 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] handler.CloseRegionHandler
> (CloseRegionHandler.java:process(128)) - Processing close of
> data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14.
> {color:red} 2016-12-08 15:00:26,242 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] regionserver.HRegion
> (HRegion.java:doClose(1163)) - Closing
> data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14.: disabling
> compactions & flushes {color}
> 2016-12-08 15:00:26,242 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] regionserver.HRegion
> (HRegion.java:doClose(1190)) - Updates disabled for region
> data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14.
> 2016-12-08 15:00:26,242 INFO
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] regionserver.HRegion
> (HRegion.java:internalFlushcache(1753)) - Started memstore flush for
> data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14., current
> region memstore size 160
> 2016-12-08 15:00:26,284 INFO
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0]
> regionserver.DefaultStoreFlusher (DefaultStoreFlusher.java:flushSnapshot(95))
> - Flushed, sequenceid=6, memsize=160, hasBloomFilter=true, into tmp file
> hdfs://dx-data-hbase-watcher/hbase/data/default/data-probe-test/5f06cb6447343b602e05996bfd87ce14/.tmp/8d734ce3d93e40628d8f82111e754cb3
> 2016-12-08 15:00:26,303 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0]
> regionserver.HRegionFileSystem (HRegionFileSystem.java:commitStoreFile(370))
> - Committing store file
> hdfs://dx-data-hbase-watcher/hbase/data/default/data-probe-test/5f06cb6447343b602e05996bfd87ce14/.tmp/8d734ce3d93e40628d8f82111e754cb3
> as
> hdfs://dx-data-hbase-watcher/hbase/data/default/data-probe-test/5f06cb6447343b602e05996bfd87ce14/cf2/8d734ce3d93e40628d8f82111e754cb3
> 2016-12-08 15:00:26,318 INFO
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] regionserver.HStore
> (HStore.java:commitFile(877)) - Added
> hdfs://dx-data-hbase-watcher/hbase/data/default/data-probe-test/5f06cb6447343b602e05996bfd87ce14/cf2/8d734ce3d93e40628d8f82111e754cb3,
> entries=1, sequenceid=6, filesize=985
> 2016-12-08 15:00:26,319 INFO
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] regionserver.HRegion
> (HRegion.java:internalFlushcache(1920)) - Finished memstore flush of
> ~160/160, currentsize=0/0 for region
> data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14. in 77ms,
> sequenceid=6, compaction requested=false
> 2016-12-08 15:00:26,323 INFO
> [StoreCloserThread-data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14.-1]
> regionserver.HStore (HStore.java:close(774)) - Closed cf1
> 2016-12-08 15:00:26,325 INFO
> [StoreCloserThread-data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14.-1]
> regionserver.HStore (HStore.java:close(774)) - Closed cf2
> 2016-12-08 15:00:26,326 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] coprocessor.CoprocessorHost
> (CoprocessorHost.java:shutdown(292)) - Stop coprocessor
> org.apache.hadoop.hbase.security.token.TokenProvider
> {color:red} 2016-12-08 15:00:26,326 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] coprocessor.CoprocessorHost
> (CoprocessorHost.java:shutdown(292)) - Stop coprocessor
> org.apache.hadoop.hbase.security.access.AccessController {color}
> 2016-12-08 15:00:26,327 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] coprocessor.CoprocessorHost
> (CoprocessorHost.java:shutdown(292)) - Stop coprocessor
> org.apache.hadoop.hbase.security.access.SecureBulkLoadEndpoint
> 2016-12-08 15:00:26,327 DEBUG
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] coprocessor.CoprocessorHost
> (CoprocessorHost.java:shutdown(292)) - Stop coprocessor
> org.apache.hadoop.hbase.regionserver.ExternalMetricObserver
> 2016-12-08 15:00:26,328 INFO
> [RS_CLOSE_REGION-dx-data-hbase-watcher05:60020-0] regionserver.HRegion
> (HRegion.java:doClose(1279)) - Closed
> data-probe-test,,1481180420784.5f06cb6447343b602e05996bfd87ce14.
> {color:red} 2016-12-08 15:00:27,590 ERROR [regionserver60020-EventThread]
> zookeeper.ClientCnxn (ClientCnxn.java:processEvent(524)) - Error while
> calling watcher
> java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.FutureTask@1851ab3a rejected from
> java.util.concurrent.ThreadPoolExecutor@19c0794f[Terminated, pool size = 0,
> active threads = 0, queued tasks = 0, completed tasks = 1]
> at
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2048)
> at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:821)
> at
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1372)
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:110)
> at
> java.util.concurrent.Executors$DelegatedExecutorService.submit(Executors.java:638)
> at
> org.apache.hadoop.hbase.security.access.ZKPermissionWatcher.nodeDataChanged(ZKPermissionWatcher.java:162)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:461)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
> 2016-12-08 15:00:27,595 ERROR [regionserver60020-EventThread]
> zookeeper.ClientCnxn (ClientCnxn.java:processEvent(524)) - Error while
> calling watcher
> java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.FutureTask@646fdb38 rejected from
> java.util.concurrent.ThreadPoolExecutor@19c0794f[Terminated, pool size = 0,
> active threads = 0, queued tasks = 0, completed tasks = 1]
> at
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2048)
> at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:821)
> at
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1372)
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:110)
> at
> java.util.concurrent.Executors$DelegatedExecutorService.submit(Executors.java:638)
> at
> org.apache.hadoop.hbase.security.access.ZKPermissionWatcher.nodeChildrenChanged(ZKPermissionWatcher.java:201)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:468)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
> {color}
> 2016-12-08 15:01:19,389 INFO
> [PriorityRpcServer.handler=6,queue=0,port=60020] regionserver.HRegionServer
> (HRegionServer.java:openRegion(3935)) - Open
> hbase:acl,,1480596080128.854f160ee9c3f2d1b591d6dbf211956e.
> 2016-12-08 15:01:19,443 DEBUG
> [RS_OPEN_REGION-dx-data-hbase-watcher05:60020-1] zookeeper.ZKAssign
> (ZKAssign.java:transitionNode(832)) - regionserver:60020-0x358ba43097e1ada,
> quorum=dx-data-hbase-watcher02:2181,dx-data-hbase-watcher01:2181,dx-data-hbase-watcher03:2181,
> baseZNode=/hbase Transitioning 854f160ee9c3f2d1b591d6dbf211956e from
> M_ZK_REGION_OFFLINE to RS_ZK_REGION_OPENING
> {color:red}
> After look up source, I found that :
> 1 AccessController implements RegionObserver and RegionServerObserver.
> 2 The reference of "ZooKeeperWatcher zk" is a same one object when the
> instance of AccessController was be used as RegionObserver and
> RegionServerObserver.
> 3 When closing region,
> org.apache.hadoop.hbase.security.access.AccessController.stop(CoprocessorEnvironment)
> , TableAuthManager.release(authManager),
> org.apache.hadoop.hbase.security.access.ZKPermissionWatcher.close() will be
> called.
> 4 If there is only one region on regionserver and I close it ,
> TableAuthManager.release(authManager) will close the instance of
> TableAuthManager and shutdown the ExecutorService of ZKPermissionWatcher .
> 5 If I grant a new permission when the ExecutorService is terminated, the
> exception before whitch is a runtimeexcepetion will occurs, and at last the
> zookeeper watcher was crashed.
> So, The instance of TableAuthManager should not be close unless regionserver
> is closing.
> {color}
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