[ 
https://issues.apache.org/jira/browse/CASSANDRA-8795?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Aleksey Yeschenko reassigned CASSANDRA-8795:
--------------------------------------------

    Assignee: Aleksey Yeschenko

> Cassandra (possibly under load) occasionally throws an exception during CQL 
> create table
> ----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8795
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8795
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Darren Warner
>            Assignee: Aleksey Yeschenko
>             Fix For: 2.1.x
>
>
> CQLSH will return the following:
> {code}
> { name: 'ResponseError',
>   message: 'java.lang.RuntimeException: 
> java.util.concurrent.ExecutionException: java.lang.NullPointerException',
>   info: 'Represents an error message from the server',
>  code: 0,
>  query: 'CREATE TABLE IF NOT EXISTS roles_by_users( userid TIMEUUID, role 
> INT, entityid TIMEUUID, entity_type TEXT, enabled BOOLEAN, PRIMARY KEY 
> (userid, role, entityid, entity_type) );' }
> {code}
> Cassandra system.log shows:
> {code}
> ERROR [MigrationStage:1] 2015-02-11 14:38:48,610 CassandraDaemon.java:153 - 
> Exception in thread Thread[MigrationStage:1,5,main]
> java.lang.NullPointerException: null
>         at 
> org.apache.cassandra.db.DefsTables.addColumnFamily(DefsTables.java:371) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeColumnFamilies(DefsTables.java:293) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeSchemaInternal(DefsTables.java:194) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeSchema(DefsTables.java:166) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.service.MigrationManager$2.runMayThrow(MigrationManager.java:393)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> ~[na:1.8.0_31]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
> ~[na:1.8.0_31]
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  ~[na:1.8.0_31]
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  [na:1.8.0_31]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_31]
> ERROR [SharedPool-Worker-2] 2015-02-11 14:38:48,620 QueryMessage.java:132 - 
> Unexpected error during query
> java.lang.RuntimeException: java.util.concurrent.ExecutionException: 
> java.lang.NullPointerException
>         at 
> org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:398) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.service.MigrationManager.announce(MigrationManager.java:374)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:249)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.statements.CreateTableStatement.announceMigration(CreateTableStatement.java:113)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.statements.SchemaAlteringStatement.execute(SchemaAlteringStatement.java:80)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:226)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:248) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:119)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:439)
>  [apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:335)
>  [apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.access$700(AbstractChannelHandlerContext.java:32)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext$8.run(AbstractChannelHandlerContext.java:324)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_31]
>         at 
> org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
>  [apache-cassandra-2.1.2.jar:2.1.2]
>         at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) 
> [apache-cassandra-2.1.2.jar:2.1.2]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_31]
> Caused by: java.util.concurrent.ExecutionException: 
> java.lang.NullPointerException
>         at java.util.concurrent.FutureTask.report(FutureTask.java:122) 
> ~[na:1.8.0_31]
>         at java.util.concurrent.FutureTask.get(FutureTask.java:192) 
> ~[na:1.8.0_31]
>         at 
> org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:394) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         ... 17 common frames omitted
> Caused by: java.lang.NullPointerException: null
>         at 
> org.apache.cassandra.db.DefsTables.addColumnFamily(DefsTables.java:371) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeColumnFamilies(DefsTables.java:293) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeSchemaInternal(DefsTables.java:194) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeSchema(DefsTables.java:166) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.service.MigrationManager$2.runMayThrow(MigrationManager.java:393)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_31]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
> ~[na:1.8.0_31]
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  ~[na:1.8.0_31]
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  ~[na:1.8.0_31]
>         ... 1 common frames omitted
> ERROR [SharedPool-Worker-2] 2015-02-11 14:38:48,621 ErrorMessage.java:243 - 
> Unexpected exception during request
> java.lang.RuntimeException: java.util.concurrent.ExecutionException: 
> java.lang.NullPointerException
>         at 
> org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:398) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.service.MigrationManager.announce(MigrationManager.java:374)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:249)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.statements.CreateTableStatement.announceMigration(CreateTableStatement.java:113)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.statements.SchemaAlteringStatement.execute(SchemaAlteringStatement.java:80)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:226)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:248) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:119)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:439)
>  [apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:335)
>  [apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.access$700(AbstractChannelHandlerContext.java:32)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext$8.run(AbstractChannelHandlerContext.java:324)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_31]
>         at 
> org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
>  [apache-cassandra-2.1.2.jar:2.1.2]
>         at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) 
> [apache-cassandra-2.1.2.jar:2.1.2]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_31]
> Caused by: java.util.concurrent.ExecutionException: 
> java.lang.NullPointerException
>         at java.util.concurrent.FutureTask.report(FutureTask.java:122) 
> ~[na:1.8.0_31]
>         at java.util.concurrent.FutureTask.get(FutureTask.java:192) 
> ~[na:1.8.0_31]
>         at 
> org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:394) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         ... 17 common frames omitted
> Caused by: java.lang.NullPointerException: null
>         at 
> org.apache.cassandra.db.DefsTables.addColumnFamily(DefsTables.java:371) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeColumnFamilies(DefsTables.java:293) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeSchemaInternal(DefsTables.java:194) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.db.DefsTables.mergeSchema(DefsTables.java:166) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.service.MigrationManager$2.runMayThrow(MigrationManager.java:393)
>  ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) 
> ~[apache-cassandra-2.1.2.jar:2.1.2]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_31]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
> ~[na:1.8.0_31]
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  ~[na:1.8.0_31]
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  ~[na:1.8.0_31]
>         ... 1 common frames omitted
> {code}



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