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https://issues.apache.org/jira/browse/CASSANDRA-1883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972872#action_12972872
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Karl Mueller commented on CASSANDRA-1883:
-----------------------------------------
Additional information: one of the SSD raid0s went bad recently. This may have
produced weird data for one cassandra node.
> NPE in get_slice quorum read
> ----------------------------
>
> Key: CASSANDRA-1883
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1883
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 0.7.0
> Environment: Linux Fedora 12 x86_64
> Reporter: Karl Mueller
> Priority: Minor
> Fix For: 0.7.0
>
>
> Getting this NPE as of the 2010-12-17 0.7 trunk. Some data may be corrupt
> somewhere on a node. It could be a null key somewhere.
> ERROR [pool-1-thread-28] 2010-12-18 12:53:20,411 Cassandra.java (line 2707)
> Internal error processing get_slice
> java.lang.NullPointerException
> at
> org.apache.cassandra.service.DigestMismatchException.<init>(DigestMismatchException.java:30)
> at
> org.apache.cassandra.service.ReadResponseResolver.resolve(ReadResponseResolver.java:92)
> at
> org.apache.cassandra.service.ReadResponseResolver.resolve(ReadResponseResolver.java:43)
> at
> org.apache.cassandra.service.QuorumResponseHandler.get(QuorumResponseHandler.java:91)
> at
> org.apache.cassandra.service.StorageProxy.strongRead(StorageProxy.java:362)
> at
> org.apache.cassandra.service.StorageProxy.readProtocol(StorageProxy.java:229)
> at
> org.apache.cassandra.thrift.CassandraServer.readColumnFamily(CassandraServer.java:128)
> at
> org.apache.cassandra.thrift.CassandraServer.getSlice(CassandraServer.java:225)
> at
> org.apache.cassandra.thrift.CassandraServer.multigetSliceInternal(CassandraServer.java:301)
> at
> org.apache.cassandra.thrift.CassandraServer.get_slice(CassandraServer.java:263)
> at
> org.apache.cassandra.thrift.Cassandra$Processor$get_slice.process(Cassandra.java:2699)
> at
> org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:2555)
> at
> org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:167)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:636)
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