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Date: Tue, 12 Jan 2010 13:22:54 +0000 (UTC)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: cassandra-commits@incubator.apache.org
Subject: [jira] Commented: (CASSANDRA-689) Multi-get slice failing
 Nullpointer Exception
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    [ https://issues.apache.org/jira/browse/CASSANDRA-689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12799190#action_12799190 ] 

Jonathan Ellis commented on CASSANDRA-689:
------------------------------------------

looks like a bug I introduced w/ the mmap code.  I don't suppose you have a query that can reproduce it?

> Multi-get slice failing Nullpointer Exception
> ---------------------------------------------
>
>                 Key: CASSANDRA-689
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-689
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.9
>            Reporter: Chris Goffinet
>
> Noticed this in trunk
> ERROR [pool-1-thread-40] 2010-01-11 22:13:55,333 Cassandra.java (line 960) Internal error processing multiget_slice
> java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.NullPointerException
>         at org.apache.cassandra.service.StorageProxy.weakReadLocal(StorageProxy.java:510)
>         at org.apache.cassandra.service.StorageProxy.readProtocol(StorageProxy.java:375)
>         at org.apache.cassandra.service.CassandraServer.readColumnFamily(CassandraServer.java:81)
>         at org.apache.cassandra.service.CassandraServer.getSlice(CassandraServer.java:164)
>         at org.apache.cassandra.service.CassandraServer.multigetSliceInternal(CassandraServer.java:237)
>         at org.apache.cassandra.service.CassandraServer.multiget_slice(CassandraServer.java:209)
>         at org.apache.cassandra.service.Cassandra$Processor$multiget_slice.process(Cassandra.java:952)
>         at org.apache.cassandra.service.Cassandra$Processor.process(Cassandra.java:842)
>         at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:253)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:619)
> Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException
>         at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
>         at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>         at org.apache.cassandra.service.StorageProxy.weakReadLocal(StorageProxy.java:506)
>         ... 11 more
> Caused by: java.lang.NullPointerException
>         at org.apache.cassandra.db.filter.SliceQueryFilter.filterSuperColumn(SliceQueryFilter.java:70)
>         at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:809)
>         at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:750)
>         at org.apache.cassandra.db.Table.getRow(Table.java:398)
>         at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:59)
>         at org.apache.cassandra.service.StorageProxy$weakReadLocalCallable.call(StorageProxy.java:691)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         ... 3 more

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