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https://issues.apache.org/jira/browse/CASSANDRA-12215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15398465#comment-15398465
]
Daniel Antonetti commented on CASSANDRA-12215:
----------------------------------------------
How does this look
{code:java}
INFO [ReadStage-1] 2016-07-28 16:58:20,340 ApproximateTime.java:44 -
Scheduling approximate time-check task with a precision of 10 milliseconds
INFO [OptionalTasks:1] 2016-07-28 16:58:20,376 CassandraRoleManager.java:412 -
Completed conversion of legacy users
INFO [OptionalTasks:1] 2016-07-28 16:58:20,377 CassandraRoleManager.java:417 -
Migrating legacy credentials data to new system table
INFO [OptionalTasks:1] 2016-07-28 16:58:20,404 CassandraRoleManager.java:430 -
Completed conversion of legacy credentials
INFO [Service Thread] 2016-07-28 16:58:35,407 GCInspector.java:284 -
ConcurrentMarkSweep GC in 272ms. CMS Old Gen: 78753424 -> 74660792; Code
Cache: 25616576 -> 25689664; Metaspace: 41159368 -> 41170872; Par Eden Space:
200170976 -> 208049320;
WARN [ReadStage-2] 2016-07-28 16:59:06,804
AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread
Thread[ReadStage-2,5,main]: {}
java.lang.RuntimeException: java.lang.NullPointerException
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2473)
~[main/:na]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
~[na:1.8.0_101]
at
org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
~[main/:na]
at
org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:136)
[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_101]
Caused by: java.lang.NullPointerException: null
at
org.apache.cassandra.db.ReadCommand$1MetricRecording.applyToRow(ReadCommand.java:470)
~[main/:na]
at
org.apache.cassandra.db.ReadCommand$1MetricRecording.applyToStatic(ReadCommand.java:464)
~[main/:na]
at org.apache.cassandra.db.transform.BaseRows.add(BaseRows.java:108)
~[main/:na]
at
org.apache.cassandra.db.transform.UnfilteredRows.add(UnfilteredRows.java:41)
~[main/:na]
at
org.apache.cassandra.db.transform.Transformation.add(Transformation.java:162)
~[main/:na]
at
org.apache.cassandra.db.transform.Transformation.apply(Transformation.java:128)
~[main/:na]
at
org.apache.cassandra.db.ReadCommand$1MetricRecording.applyToPartition(ReadCommand.java:458)
~[main/:na]
at
org.apache.cassandra.db.ReadCommand$1MetricRecording.applyToPartition(ReadCommand.java:442)
~[main/:na]
at
org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:96)
~[main/:na]
at
org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$Serializer.serialize(UnfilteredPartitionIterators.java:289)
~[main/:na]
at
org.apache.cassandra.db.ReadResponse$LocalDataResponse.build(ReadResponse.java:145)
~[main/:na]
at
org.apache.cassandra.db.ReadResponse$LocalDataResponse.<init>(ReadResponse.java:138)
~[main/:na]
at
org.apache.cassandra.db.ReadResponse$LocalDataResponse.<init>(ReadResponse.java:134)
~[main/:na]
at
org.apache.cassandra.db.ReadResponse.createDataResponse(ReadResponse.java:76)
~[main/:na]
at
org.apache.cassandra.db.ReadCommand.createResponse(ReadCommand.java:323)
~[main/:na]
at
org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1803)
~[main/:na]
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2469)
~[main/:na]
... 5 common frames omitted
WARN [ReadStage-2] 2016-07-28 16:59:21,498
AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread
Thread[ReadStage-2,5,main]: {}
{code}
> NullPointerException during Compaction
> --------------------------------------
>
> Key: CASSANDRA-12215
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12215
> Project: Cassandra
> Issue Type: Bug
> Components: Compaction
> Environment: Cassandra 3.0.8, cqlsh 5.0.1
> Reporter: Hau Phan
> Fix For: 3.0.x
>
>
> Running 3.0.8 on a single standalone node with cqlsh 5.0.1, the keyspace RF =
> 1 and class SimpleStrategy.
> Attempting to run a 'select * from <table>' and receiving this error:
> ReadFailure: code=1300 [Replica(s) failed to execute read] message="Operation
> failed - received 0 responses and 1 failures" info={'failures': 1,
> 'received_responses': 0, 'required_responses': 1, 'consistency': 'ONE'}
> Cassandra system.log prints this:
> {code}
> ERROR [CompactionExecutor:5] 2016-07-15 13:42:13,219 CassandraDaemon.java:201
> - Exception in thread Thread[CompactionExecutor:5,1,main]
> java.lang.NullPointerException: null
> at
> org.apache.cassandra.db.transform.UnfilteredRows.isEmpty(UnfilteredRows.java:58)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(PurgeFunction.java:64)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(PurgeFunction.java:24)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:96)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.compaction.CompactionIterator.hasNext(CompactionIterator.java:226)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:177)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:78)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:263)
> ~[apache-cassandra-3.0.8.jar:3.0.8]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> ~[na:1.8.0_65]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> ~[na:1.8.0_65]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> ~[na:1.8.0_65]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_65]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]
> {code}
> Doing a sstabledump -d shows a few rows with the column value of
> "<tombstone>", telling me compaction doesn't seem to be working correctly.
> # nodetool compactionstats
> pending tasks: 1
> attempting to run a compaction gets:
> # nodetool compact <table> <cf>
> error: null
> -- StackTrace --
> java.lang.NullPointerException
> at
> org.apache.cassandra.db.transform.UnfilteredRows.isEmpty(UnfilteredRows.java:58)
> at
> org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(PurgeFunction.java:64)
> at
> org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(PurgeFunction.java:24)
> at
> org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:96)
> at
> org.apache.cassandra.db.compaction.CompactionIterator.hasNext(CompactionIterator.java:226)
> at
> org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:177)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at
> org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:78)
> at
> org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60)
> at
> org.apache.cassandra.db.compaction.CompactionManager$8.runMayThrow(CompactionManager.java:606)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Since the table is pretty small, I can do a copy to, truncate the table, and
> copy from, and the table is fine. But my concern is if compaction fails to
> remove those rows, and the table will eventually be very large in a
> production environment, the copy, truncate, and copy will no longer be an
> option.
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