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https://issues.apache.org/jira/browse/CASSANDRA-4407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13406121#comment-13406121
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Jonathan Ellis commented on CASSANDRA-4407:
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look under "Mailing lists" on http://cassandra.apache.org/
> timout excpetion in client side and AssertionError in cassandra log
> -------------------------------------------------------------------
>
> Key: CASSANDRA-4407
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4407
> Project: Cassandra
> Issue Type: Bug
> Components: API, Core
> Affects Versions: 1.0.8, 1.0.10
> Environment: Debian linux
> Reporter: Nare Gasparyan
> Priority: Critical
>
> Hello.
> I moved my cassandra from one sever to another. Cassandra's version on the
> first server was 1.0.8 on the new one it is 1.0.10. I moved also data by
> copying all files under /var/lib/cassandra/data/mykeyspace.
> and now it seems to me that some data has been corrupted during migration as
> I get the following exceptions when getting data for some keys.
> In cassandra client I get
> me.prettyprint.hector.api.exceptions.HTimedOutException: TimedOutException()
> at
> me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:42)
> at
> me.prettyprint.cassandra.service.KeyspaceServiceImpl$11.execute(KeyspaceServiceImpl.java:432)
> at
> me.prettyprint.cassandra.service.KeyspaceServiceImpl$11.execute(KeyspaceServiceImpl.java:416)
> at
> me.prettyprint.cassandra.service.Operation.executeAndSetResult(Operation.java:103)
> In cassandra system.log I get
> ERROR [ReadStage:492] 2012-07-02 21:50:50,280 AbstractCassandraDaemon.java
> (line 139) Fatal exception in thread Thread[ReadStage:492,5,main]
> java.lang.AssertionError: 820255506 vs 518814720
> at
> org.apache.cassandra.io.util.MmappedSegmentedFile.floor(MmappedSegmentedFile.java:65)
> at
> org.apache.cassandra.io.util.MmappedSegmentedFile.getSegment(MmappedSegmentedFile.java:80)
> at
> org.apache.cassandra.io.sstable.SSTableReader.getFileDataInput(SSTableReader.java:830)
> Is this really data corruption problem and how can I fix it?
> I have only one node so nodetool repair won't help.
> Thanks.
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