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From "Alaa Zubaidi (PDF)" <>
Subject Re: Corrupt SSTABLE over and over
Date Fri, 12 Aug 2016 07:00:53 GMT
One more thing I noticed..
The corrupted SSTable is mentioned twice in the log file
[CompactionExecutor:10253] 2016-08-11 08:59:01,952.... - Compacting (.....)
[, ....]
[CompactionExecutor:10253] 2016-08-11 09:32:04,814.... - Compacting (.....)

Is it possible Cassandra is trying to compact the same file again while its
being compacted by another process?


On Thu, Aug 11, 2016 at 6:20 PM, Alaa Zubaidi (PDF) <>

> Hi,
> I have a 16 Node cluster, Cassandra 2.2.1 on Windows, local installation
> (NOT on the cloud)
> and I am getting
> Error [CompactionExecutor:2] 2016-08-12 06:51:52, 983 Cassandra
> - Execption in thread Thread[CompactionExecutor:2,1main]
> (E:\........\la-4886-big-Data.db): corruption detected, chunk at 4969092
> of length 10208.
>     at
> ~[apache-cassandra-2.2.1.jar:2.2.1]
> ....
> ....
> ERROR [CompactionExecutor:2] ....... - Existing
> forcefully due to file system exception on startup, disk failure policy
> "stop"
> I tried sstablescrub but it crashed with hs-err-pid-...
> I removed the corrupted file and started the Node again, after one day the
> corruption came back again, I removed the files, and restarted Cassandra,
> it worked for few days, then I ran "nodetool repair" after it finished,
> Cassandra failed again but with commitlog corruption, after removing the
> commitlog files, it failed again with another sstable corruption.
> I was also checking the HW, file system, and memory, the VMware logs
> showed no HW error, also the HW management logs showed NO problems or
> issues.
> Also checked the Windows Logs (Application and System) the only thing I
> found is on the system logs "Cassandra Service terminated with
> service-specific error Cannot create another system semaphore.
> I could not find any thing regarding that error, all comments point to
> application log.
> Any help is appreciated..
> --
> Alaa Zubaidi


Alaa Zubaidi
PDF Solutions, Inc.
333 West San Carlos Street, Suite 1000
San Jose, CA 95110  USA
Tel: 408-283-5639
fax: 408-938-6479

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