[jira] [Assigned] (CASSANDRA-7278) NPE in StorageProxy.java:1920

["sankalp kohli (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-7278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sankalp kohli reassigned CASSANDRA-7278:
----------------------------------------

    Assignee: sankalp kohli

> NPE in StorageProxy.java:1920
> -----------------------------
>
>                 Key: CASSANDRA-7278
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7278
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Cassandra 2.07, x86-64 ubuntu 12.04
>            Reporter: Duncan Sands
>            Assignee: sankalp kohli
>            Priority: Minor
>         Attachments: sl
>
>
> Got this this morning under heavy load:
> ERROR [ReadStage:128] 2014-05-21 07:59:03,274 CassandraDaemon.java (line 198) Exception in thread Thread[ReadStage:128,5,main]
> java.lang.RuntimeException: java.lang.NullPointerException
>         at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1920)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:744)
> Caused by: java.lang.NullPointerException
>         at org.apache.cassandra.io.util.RandomAccessReader.getTotalBufferSize(RandomAccessReader.java:157)
>         at org.apache.cassandra.io.compress.CompressedRandomAccessReader.getTotalBufferSize(CompressedRandomAccessReader.java:159)
>         at org.apache.cassandra.service.FileCacheService.get(FileCacheService.java:96)
>         at org.apache.cassandra.io.util.PoolingSegmentedFile.getSegment(PoolingSegmentedFile.java:36)
>         at org.apache.cassandra.io.sstable.SSTableReader.getFileDataInput(SSTableReader.java:1195)
>         at org.apache.cassandra.db.columniterator.SimpleSliceReader.<init>(SimpleSliceReader.java:57)
>         at org.apache.cassandra.db.columniterator.SSTableSliceIterator.createReader(SSTableSliceIterator.java:65)
>         at org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:42)
>         at org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:167)
>         at org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:62)
>         at org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:250)
>         at org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:53)
>         at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1540)
>         at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1369)
>         at org.apache.cassandra.db.Keyspace.getRow(Keyspace.java:327)
>         at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:65)
>         at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1352)
>         at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1916)
>         ... 3 more
> There had just been a 20 second GC pause, and the system was dropping messages like mad, see attached log snippet.



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