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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Corrupted data
Date Mon, 11 Jul 2011 23:34:54 GMT
That looks a lot like what I've seen from machines with bad ram.

2011/7/8 Héctor Izquierdo Seliva <izquierdo@strands.com>:
> Hi everyone,
>
> I'm having thousands of these errors:
>
>  WARN [CompactionExecutor:1] 2011-07-08 16:36:45,705
> CompactionManager.java (line 737) Non-fatal error reading row
> (stacktrace follows)
> java.io.IOError: java.io.IOException: Impossible row size
> 6292724931198053
>        at
> org.apache.cassandra.db.compaction.CompactionManager.scrubOne(CompactionManager.java:719)
>        at
> org.apache.cassandra.db.compaction.CompactionManager.doScrub(CompactionManager.java:633)
>        at org.apache.cassandra.db.compaction.CompactionManager.access
> $600(CompactionManager.java:65)
>        at org.apache.cassandra.db.compaction.CompactionManager
> $3.call(CompactionManager.java:250)
>        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>        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)
> Caused by: java.io.IOException: Impossible row size 6292724931198053
>        ... 9 more
>  INFO [CompactionExecutor:1] 2011-07-08 16:36:45,705
> CompactionManager.java (line 743) Retrying from row index; data is -8
> bytes starting at 4735525245
>  WARN [CompactionExecutor:1] 2011-07-08 16:36:45,705
> CompactionManager.java (line 767) Retry failed too.  Skipping to next
> row (retry's stacktrace follows)
> java.io.IOError: java.io.EOFException: bloom filter claims to be
> 863794556 bytes, longer than entire row size -8
>
>
> THis is during scrub, as I saw similar errors while in normal operation.
> Is there anything I can do? It looks like I'm going to lose a ton of
> data
>
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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