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https://issues.apache.org/jira/browse/HIVE-12167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957516#comment-14957516
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Sergey Shelukhin commented on HIVE-12167:
-----------------------------------------
Btw I filed a separate JIRA for the static. getInstance(Config) will not
actually return the correct HBaseStore if someone already called it with a
different config. If will set the config, then return the existing instance...
then, different threads might get the instances with new config :)
> HBase metastore causes massive number of ZK exceptions in MiniTez tests
> -----------------------------------------------------------------------
>
> Key: HIVE-12167
> URL: https://issues.apache.org/jira/browse/HIVE-12167
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-12167.patch
>
>
> I ran some random test (vectorization_10) with HBase metastore for unrelated
> reason, and I see large number of exceptions in hive.log
> {noformat}
> $ grep -c "ConnectionLoss" hive.log
> 52
> $ grep -c "Connection refused" hive.log
> 1014
> {noformat}
> These log lines' count has increased by ~33% since merging llap branch, but
> it is still high before that (39/~700) for the same test). These lines are
> not present if I disable HBase metastore.
> The exceptions are:
> {noformat}
> 2015-10-13T17:51:06,232 WARN [Thread-359-SendThread(localhost:2181)]:
> zookeeper.ClientCnxn (ClientCnxn.java:run(1102)) - Session 0x0 for server
> null, unexpected error, closing socket connection and attempting reconnect
> java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> ~[?:1.8.0_45]
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> ~[?:1.8.0_45]
> at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
> ~[zookeeper-3.4.6.jar:3.4.6-1569965]
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
> [zookeeper-3.4.6.jar:3.4.6-1569965]
> {noformat}
> that is retried for some seconds and then
> {noformat}
> 2015-10-13T17:51:22,867 WARN [Thread-359]: zookeeper.ZKUtil
> (ZKUtil.java:checkExists(544)) - hconnection-0x1da6ef180x0,
> quorum=localhost:2181, baseZNode=/hbase Unable to set watcher on znode
> (/hbase/hbaseid)
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode
> = ConnectionLoss for /hbase/hbaseid
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
> ~[zookeeper-3.4.6.jar:3.4.6-1569965]
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> ~[zookeeper-3.4.6.jar:3.4.6-1569965]
> at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1045)
> ~[zookeeper-3.4.6.jar:3.4.6-1569965]
> at
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:222)
> ~[hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:541)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.zookeeper.ZKClusterId.readClusterIdZNode(ZKClusterId.java:65)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ZooKeeperRegistry.getClusterId(ZooKeeperRegistry.java:105)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.retrieveClusterId(ConnectionManager.java:879)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.<init>(ConnectionManager.java:635)
> [hbase-client-1.1.1.jar:1.1.1]
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method) ~[?:1.8.0_45]
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> [?:1.8.0_45]
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> [?:1.8.0_45]
> at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
> [?:1.8.0_45]
> at
> org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(ConnectionFactory.java:238)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager.createConnection(ConnectionManager.java:420)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager.createConnectionInternal(ConnectionManager.java:329)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.HConnectionManager.createConnection(HConnectionManager.java:144)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hive.metastore.hbase.VanillaHBaseConnection.connect(VanillaHBaseConnection.java:56)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite.<init>(HBaseReadWrite.java:227)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite.<init>(HBaseReadWrite.java:83)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite$1.initialValue(HBaseReadWrite.java:157)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite$1.initialValue(HBaseReadWrite.java:151)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:180)
> [?:1.8.0_45]
> at java.lang.ThreadLocal.get(ThreadLocal.java:170) [?:1.8.0_45]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite.getInstance(HBaseReadWrite.java:205)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.StatsCache$Invalidator.run(StatsCache.java:309)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> {noformat}
> or (note this one is after the connection was already created)
> {noformat}
> 2015-10-13T17:51:58,134 WARN [Thread-359]: zookeeper.ZKUtil
> (ZKUtil.java:getData(753)) - hconnection-0x1da6ef180x0,
> quorum=localhost:2181, baseZNode=/hbase Unable to get data of znode
> /hbase/meta-region-server
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode
> = ConnectionLoss for /hbase/meta-region-server
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
> ~[zookeeper-3.4.6.jar:3.4.6-1569965]
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> ~[zookeeper-3.4.6.jar:3.4.6-1569965]
> at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1155)
> ~[zookeeper-3.4.6.jar:3.4.6-1569965]
> at
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.getData(RecoverableZooKeeper.java:360)
> ~[hbase-client-1.1.1.jar:1.1.1]
> at org.apache.hadoop.hbase.zookeeper.ZKUtil.getData(ZKUtil.java:745)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.zookeeper.MetaTableLocator.getMetaRegionState(MetaTableLocator.java:482)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.zookeeper.MetaTableLocator.getMetaRegionLocation(MetaTableLocator.java:168)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.zookeeper.MetaTableLocator.blockUntilAvailable(MetaTableLocator.java:600)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.zookeeper.MetaTableLocator.blockUntilAvailable(MetaTableLocator.java:580)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.zookeeper.MetaTableLocator.blockUntilAvailable(MetaTableLocator.java:559)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ZooKeeperRegistry.getMetaRegionLocation(ZooKeeperRegistry.java:61)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateMeta(ConnectionManager.java:1185)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1152)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:300)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:153)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:61)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ClientSmallReversedScanner.loadCache(ClientSmallReversedScanner.java:211)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ClientSmallReversedScanner.next(ClientSmallReversedScanner.java:185)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1249)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1155)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:300)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:153)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:61)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:320)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:295)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:160)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:155)
> [hbase-client-1.1.1.jar:1.1.1]
> at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:811)
> [hbase-client-1.1.1.jar:1.1.1]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite.scan(HBaseReadWrite.java:2046)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite.scan(HBaseReadWrite.java:2027)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.HBaseReadWrite.invalidateAggregatedStats(HBaseReadWrite.java:1707)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.hive.metastore.hbase.StatsCache$Invalidator.run(StatsCache.java:309)
> [hive-metastore-2.0.0-SNAPSHOT.jar:?]
> {noformat}
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