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Date: Mon, 4 Jul 2011 01:41:21 +0000 (UTC)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
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Subject: [jira] [Resolved] (CASSANDRA-2847) Nullpointer Exception in
 get_range_slices
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     [ https://issues.apache.org/jira/browse/CASSANDRA-2847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis resolved CASSANDRA-2847.
---------------------------------------

    Resolution: Duplicate

Thanks.

> Nullpointer Exception in get_range_slices
> -----------------------------------------
>
>                 Key: CASSANDRA-2847
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2847
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.8.1
>            Reporter: Thibaut
>            Priority: Critical
>
> Hi,
> we upgraded our test cluster from 0.7.* to 0.8.1. We did run nodetool scrub on each node, and then nodetool repair (Repair might not have finished so far). We also upgradet to hector 0.8.1 
> We tried to run our application and get_range_slices fails with the following error:
> ERROR [pool-2-thread-15] 2011-07-01 20:15:46,224 Cassandra.java (line 3210) Internal error processing get_range_slices
> java.lang.NullPointerException
>         at org.apache.cassandra.db.ColumnFamily.diff(ColumnFamily.java:298)
>         at org.apache.cassandra.db.ColumnFamily.diff(ColumnFamily.java:406)
>         at org.apache.cassandra.service.RowRepairResolver.maybeScheduleRepairs(RowRepairResolver.java:103)
>         at org.apache.cassandra.service.RangeSliceResponseResolver$2.getReduced(RangeSliceResponseResolver.java:120)
>         at org.apache.cassandra.service.RangeSliceResponseResolver$2.getReduced(RangeSliceResponseResolver.java:85)
>         at org.apache.cassandra.utils.ReducingIterator.computeNext(ReducingIterator.java:74)
>         at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:140)
>         at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:135)
>         at org.apache.cassandra.service.StorageProxy.getRangeSlice(StorageProxy.java:715)
>         at org.apache.cassandra.thrift.CassandraServer.get_range_slices(CassandraServer.java:617)
>         at org.apache.cassandra.thrift.Cassandra$Processor$get_range_slices.process(Cassandra.java:3202)
>         at org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:2889)
>         at org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:187)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)

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