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From aaron morton <aa...@thelastpickle.com>
Subject Re: The compaction task cannot delete sstables which are used in a repair session
Date Wed, 26 Sep 2012 21:29:26 GMT
I see you are using the Windows. 

When using the Windows sometimes the memory mapping of the files has not finalised before
we try to delete. This is an issue with the Windows and (I think) the non Sun JVM's. 

The Cassandra will drop back to using the JVM GC to free disk space when it's running low.


Cheers


-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com

On 25/09/2012, at 11:56 PM, Rene Kochen <rene.kochen@schange.com> wrote:

> Is this a bug? I'm using Cassandra 1.0.11:
> 
> INFO 13:45:43,750 Compacting [SSTableReader(path='d:\data\Traxis\Parameters-hd-47-Data.db'),
SSTableReader(path='d:\data\Traxis\Parameters-hd-44-Data.db'), SSTableReader(path='d:\data\Traxis\Parameters-hd-46-Data.db'),
SSTableReader(path='d:\data\Traxis\Parameters-hd-45-Data.db')]
> INFO 13:45:43,782 Compacted to [d:\data\Traxis\Parameters-hd-48-Data.db,].  2,552 to
638 (~25% of original) bytes for 1 keys at 0.019014MB/s.  Time: 32ms.
> ERROR 13:45:43,782 Unable to delete d:\data\Traxis\Parameters-hd-44-Data.db (it will
be removed on server restart; we'll also retry after GC)
> ERROR 13:45:43,782 Unable to delete d:\data\Traxis\Parameters-hd-45-Data.db (it will
be removed on server restart; we'll also retry after GC)
> ERROR 13:45:43,797 Unable to delete d:\data\Traxis\Parameters-hd-46-Data.db (it will
be removed on server restart; we'll also retry after GC)
> ERROR 13:45:43,797 Unable to delete d:\data\Traxis\Parameters-hd-47-Data.db (it will
be removed on server restart; we'll also retry after GC)
> INFO 13:45:43,797 [repair #88f6f3a0-0706-11e2-0000-aac4e84dbbbf] Sending completed merkle
tree to /10.49.94.171 for (Traxis,Parameters)
> 
> Thanks,
> 
> Rene


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