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https://issues.apache.org/jira/browse/CASSANDRA-2648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13033431#comment-13033431
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Stu Hood commented on CASSANDRA-2648:
-------------------------------------
Assuming this is random corruption, you should be able to start the node by
moving that commitlog out of the way. If the data is not sensitive, it would
probably be helpful if you could attach a (compressed copy).
Was there anything unusual about how the node went offline?
> Failing while starting Cassandar server : Corrupt (negative) value length
> encountered
> -------------------------------------------------------------------------------------
>
> Key: CASSANDRA-2648
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2648
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 0.7.4
> Environment: Linux
> Reporter: Olivier Smadja
>
> INFO 16:50:35,307 reading saved cache
> /home/tapix/data/cassandra/data/saved_caches/tapix_prod-StreamPostsStatistics-KeyCache
> INFO 16:50:35,316 Opening
> /home/tapix/data/cassandra/data/tapix_prod/StreamPostsStatistics-f-121
> INFO 16:50:35,320 Opening
> /home/tapix/data/cassandra/data/tapix_prod/StreamPostsStatistics-f-120
> INFO 16:50:35,329 Opening
> /home/tapix/data/cassandra/data/tapix_prod/StreamLine-f-9
> INFO 16:50:35,352 Creating new commitlog segment
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1305316235352.log
> INFO 16:50:35,362 Replaying
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1303829569725.log,
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1303948043185.log,
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1304361402015.log,
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1304728796807.log,
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1305208776962.log,
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1305316204091.log
> INFO 16:50:35,536 Finished reading
> /home/tapix/data/cassandra/data/commitlog/CommitLog-1303829569725.log
> ERROR 16:50:35,537 Exception encountered during startup.
> java.io.IOException: Corrupt (negative) value length encountered
> at
> org.apache.cassandra.utils.ByteBufferUtil.readWithLength(ByteBufferUtil.java:269)
> at
> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:94)
> at
> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:35)
> at
> org.apache.cassandra.db.ColumnFamilySerializer.deserializeColumns(ColumnFamilySerializer.java:129)
> at
> org.apache.cassandra.db.ColumnFamilySerializer.deserialize(ColumnFamilySerializer.java:120)
> at
> org.apache.cassandra.db.RowMutation$RowMutationSerializer.deserialize(RowMutation.java:380)
> at
> org.apache.cassandra.db.commitlog.CommitLog.recover(CommitLog.java:253)
> at
> org.apache.cassandra.db.commitlog.CommitLog.recover(CommitLog.java:156)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:173)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:314)
> at
> org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:79)
> Exception encountered during startup.
> java.io.IOException: Corrupt (negative) value length encountered
> at
> org.apache.cassandra.utils.ByteBufferUtil.readWithLength(ByteBufferUtil.java:269)
> at
> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:94)
> at
> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:35)
> at
> org.apache.cassandra.db.ColumnFamilySerializer.deserializeColumns(ColumnFamilySerializer.java:129)
> at
> org.apache.cassandra.db.ColumnFamilySerializer.deserialize(ColumnFamilySerializer.java:120)
> at
> org.apache.cassandra.db.RowMutation$RowMutationSerializer.deserialize(RowMutation.java:380)
> at
> org.apache.cassandra.db.commitlog.CommitLog.recover(CommitLog.java:253)
> at
> org.apache.cassandra.db.commitlog.CommitLog.recover(CommitLog.java:156)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:173)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:314)
> at
> org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:79)
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