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From Vaibhav Gumashta <vgumas...@hortonworks.com>
Subject Re: Hive 0.13 Metastore => MySQL BoneCP issue
Date Tue, 10 Jun 2014 20:00:33 GMT
Soam,

What version of BoneCP are you using?

Thanks,
--Vaibhav


On Tue, Jun 10, 2014 at 12:41 PM, Soam Acharya <soam@altiscale.com> wrote:

> Hi folks,
>
> we're seeing an intermittent issue between our Hive 0.13 metastore and
> mysql instance. After being idle for about 5 minutes or so, any
> transactions involving the metastore and mysql causes the following error
> to appear in the metastore log:
>
> 2014-06-09 05:13:52,066 ERROR bonecp.ConnectionHandle
> (ConnectionHandle.java:markPossiblyBroken(388)) - Database access problem.
> Killing off this connection and all remaining connectio
> ns in the connection pool. SQL State = 08S01
> 2014-06-09 05:13:52,068 ERROR metastore.RetryingHMSHandler
> (RetryingHMSHandler.java:invoke(157)) - Retrying HMSHandler after 1000 ms
> (attempt 1 of 1) with error: javax.jdo.JDODataStore
> Exception: Communications link failure
>
> The last packet successfully received from the server was 502,751
> milliseconds ago.  The last packet sent successfully to the server was 1
> milliseconds ago.
>         at
> org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:451)
>         at org.datanucleus.api.jdo.JDOQuery.execute(JDOQuery.java:275)
>         at
> org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:900)
>         at
> org.apache.hadoop.hive.metastore.ObjectStore.getTable(ObjectStore.java:832)
>         at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
>
> [full stack trace is below]
>
> Subsequent transactions go through fine, however. This only occurs if the
> metastore has has been idle for a while.
>
> We've been looking at the code and the problem seems to lie in the channel
> between the driver and metastore connection pool. We looked at the wait
> time configuration settings both mysql and BoneCP. Both of them are set for
> max value.
>
> Our hive 0.12 install uses DBCP for datanucleus.connectionPoolingType, not
> BoneCP and we don't see these issues there. We are not running Tez.
>
> This seems like such a basic issue that we'd thought to check and see if
> anyone else has encountered it. Any insights would be greatly appreciated.
>
> Thanks!
>
> Soam
>
> =================
>
> Full stack trace:
>
> 2014-06-09 05:13:52,066 ERROR bonecp.ConnectionHandle
> (ConnectionHandle.java:markPossiblyBroken(388)) - Database access problem.
> Killing off this connection and all remaining connectio
> ns in the connection pool. SQL State = 08S01
> 2014-06-09 05:13:52,068 ERROR metastore.RetryingHMSHandler
> (RetryingHMSHandler.java:invoke(157)) - Retrying HMSHandler after 1000 ms
> (attempt 1 of 1) with error: javax.jdo.JDODataStore
> Exception: Communications link failure
>
> The last packet successfully received from the server was 502,751
> milliseconds ago.  The last packet sent successfully to the server was 1
> milliseconds ago.
>         at
> org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:451)
>         at org.datanucleus.api.jdo.JDOQuery.execute(JDOQuery.java:275)
>         at
> org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:900)
>         at
> org.apache.hadoop.hive.metastore.ObjectStore.getTable(ObjectStore.java:832)
>         at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at
> org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:108)
>         at com.sun.proxy.$Proxy0.getTable(Unknown Source)
>         at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_table(HiveMetaStore.java:1559)
>         at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:105)
>         at com.sun.proxy.$Proxy11.get_table(Unknown Source)
>         at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_table.getResult(ThriftHiveMetastore.java:8146)
>         at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_table.getResult(ThriftHiveMetastore.java:8130)
>         at
> org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
>         at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:110)
>         at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:107)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
>         at
> org.apache.hadoop.hive.shims.HadoopShimsSecure.doAs(HadoopShimsSecure.java:500)
>         at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor.process(TUGIBasedProcessor.java:118)
>         at
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:206)
>         at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:744)
> NestedThrowablesStackTrace:
> com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
> link failure
>
> The last packet successfully received from the server was 502,751
> milliseconds ago.  The last packet sent successfully to the server was 1
> milliseconds ago.
>         at sun.reflect.GeneratedConstructorAccessor41.newInstance(Unknown
> Source)
>         at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>         at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
>         at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
>         at
> com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1117)
>         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3603)
>         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3492)
>         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4043)
>         at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2503)
>         at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2664)
>         at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2788)
>         at
> com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:5282)
>         at
> com.jolbox.bonecp.ConnectionHandle.setAutoCommit(ConnectionHandle.java:1292)
>         at
> org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:440)
>         at
> org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getXAResource(ConnectionFactoryImpl.java:378)
>         at
> org.datanucleus.store.connection.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:328)
>         at
> org.datanucleus.store.connection.AbstractConnectionFactory.getConnection(AbstractConnectionFactory.java:94)
>         at
> org.datanucleus.store.AbstractStoreManager.getConnection(AbstractStoreManager.java:430)
>         at
> org.datanucleus.store.AbstractStoreManager.getConnection(AbstractStoreManager.java:396)
>         at
> org.datanucleus.store.rdbms.query.JDOQLQuery.performExecute(JDOQLQuery.java:621)
>         at org.datanucleus.store.query.Query.executeQuery(Query.java:1786)
>         at
> org.datanucleus.store.query.Query.executeWithArray(Query.java:1672)
>         at org.datanucleus.api.jdo.JDOQuery.execute(JDOQuery.java:266)
>         at
> org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:900)
>         at
> org.apache.hadoop.hive.metastore.ObjectStore.getTable(ObjectStore.java:832)
>         at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at
> org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:108)
>         at com.sun.proxy.$Proxy0.getTable(Unknown Source)
>         at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_table(HiveMetaStore.java:1559)
>         at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:105)
>         at com.sun.proxy.$Proxy11.get_table(Unknown Source)
>         at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_table.getResult(ThriftHiveMetastore.java:8146)
>         at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_table.getResult(ThriftHiveMetastore.java:8130)
>         at
> org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
>         at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:110)
>         at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:107)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
>         at
> org.apache.hadoop.hive.shims.HadoopShimsSecure.doAs(HadoopShimsSecure.java:500)
>         at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor.process(TUGIBasedProcessor.java:118)
>         at
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:206)
>         at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:744)
> Caused by: java.io.EOFException: Can not read response from server.
> Expected to read 4 bytes, read 0 bytes before connection was unexpectedly
> lost.
>         at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3052)
>         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3503)
>         ... 44 more
>
>
>

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