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https://issues.apache.org/jira/browse/CASSANDRA-13113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15939174#comment-15939174
 ] 

Alex Petrov commented on CASSANDRA-13113:
-----------------------------------------

As [~beobal] noted, we do not need wrapping exceptions at all now, and can get 
rid of {{ExecutionException}} in {{AuthCache#get}}. I've changed the patch 
according to his suggestions.

> test failure in auth_test.TestAuth.system_auth_ks_is_alterable_test
> -------------------------------------------------------------------
>
>                 Key: CASSANDRA-13113
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13113
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Testing
>            Reporter: Sean McCarthy
>            Assignee: Alex Petrov
>              Labels: dtest, test-failure
>         Attachments: node1_debug.log, node1_gc.log, node1.log, 
> node2_debug.log, node2_gc.log, node2.log, node3_debug.log, node3_gc.log, 
> node3.log
>
>
> example failure:
> http://cassci.datastax.com/job/trunk_dtest/1466/testReport/auth_test/TestAuth/system_auth_ks_is_alterable_test
> {code}
> Stacktrace
>   File "/usr/lib/python2.7/unittest/case.py", line 358, in run
>     self.tearDown()
>   File "/home/automaton/cassandra-dtest/dtest.py", line 582, in tearDown
>     raise AssertionError('Unexpected error in log, see stdout')
> {code}{code}
> Standard Output
> Unexpected error in node2 log, error: 
> ERROR [Native-Transport-Requests-1] 2017-01-08 21:10:55,056 Message.java:623 
> - Unexpected exception during request; channel = [id: 0xf39c6dae, 
> L:/127.0.0.2:9042 - R:/127.0.0.1:43640]
> java.lang.RuntimeException: 
> org.apache.cassandra.exceptions.UnavailableException: Cannot achieve 
> consistency level QUORUM
>       at 
> org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:503)
>  ~[main/:na]
>       at 
> org.apache.cassandra.auth.CassandraRoleManager.canLogin(CassandraRoleManager.java:310)
>  ~[main/:na]
>       at org.apache.cassandra.service.ClientState.login(ClientState.java:271) 
> ~[main/:na]
>       at 
> org.apache.cassandra.transport.messages.AuthResponse.execute(AuthResponse.java:80)
>  ~[main/:na]
>       at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:517)
>  [main/:na]
>       at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:410)
>  [main/:na]
>       at 
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
>  [netty-all-4.0.39.Final.jar:4.0.39.Final]
>       at 
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
>  [netty-all-4.0.39.Final.jar:4.0.39.Final]
>       at 
> io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35)
>  [netty-all-4.0.39.Final.jar:4.0.39.Final]
>       at 
> io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:357)
>  [netty-all-4.0.39.Final.jar:4.0.39.Final]
>       at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_45]
>       at 
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162)
>  [main/:na]
>       at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:109) 
> [main/:na]
>       at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]
> Caused by: org.apache.cassandra.exceptions.UnavailableException: Cannot 
> achieve consistency level QUORUM
>       at 
> org.apache.cassandra.db.ConsistencyLevel.assureSufficientLiveNodes(ConsistencyLevel.java:334)
>  ~[main/:na]
>       at 
> org.apache.cassandra.service.AbstractReadExecutor.getReadExecutor(AbstractReadExecutor.java:162)
>  ~[main/:na]
>       at 
> org.apache.cassandra.service.StorageProxy$SinglePartitionReadLifecycle.<init>(StorageProxy.java:1734)
>  ~[main/:na]
>       at 
> org.apache.cassandra.service.StorageProxy.fetchRows(StorageProxy.java:1696) 
> ~[main/:na]
>       at 
> org.apache.cassandra.service.StorageProxy.readRegular(StorageProxy.java:1642) 
> ~[main/:na]
>       at 
> org.apache.cassandra.service.StorageProxy.read(StorageProxy.java:1557) 
> ~[main/:na]
>       at 
> org.apache.cassandra.db.SinglePartitionReadCommand$Group.execute(SinglePartitionReadCommand.java:964)
>  ~[main/:na]
>       at 
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:282)
>  ~[main/:na]
>       at 
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:252)
>  ~[main/:na]
>       at 
> org.apache.cassandra.auth.CassandraRoleManager.getRoleFromTable(CassandraRoleManager.java:511)
>  ~[main/:na]
>       at 
> org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:493)
>  ~[main/:na]
>       ... 13 common frames omitted
> {code}



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