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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: [RELEASE CANDIDATE] Apache Cassandra 1.1.0-rc1 released
Date Wed, 18 Apr 2012 02:46:07 GMT
64bit is recommended where that's available.

If you actually did have a 32bit machine or VM, then you should
dramatically reduce the commitlog space cap to the minimum of 128MB so
it doesn't need to mmap so much.

On Tue, Apr 17, 2012 at 1:45 PM, Bryce Godfrey
<Bryce.Godfrey@azaleos.com> wrote:
> Sorry, I found the issue.  The server I was using had 32bit java installed.
>
> -----Original Message-----
> From: Sylvain Lebresne [mailto:sylvain@datastax.com]
> Sent: Monday, April 16, 2012 11:39 PM
> To: user@cassandra.apache.org
> Subject: Re: [RELEASE CANDIDATE] Apache Cassandra 1.1.0-rc1 released
>
> On Mon, Apr 16, 2012 at 10:45 PM, Bryce Godfrey <Bryce.Godfrey@azaleos.com> wrote:
>> I keep running into this with my testing (on a windows box), Is this just a OOM for
RAM?
>
> How much RAM do you have? Do you use completely standard settings? Do you also OOM if
you try the same test with Cassandra 1.0.9?
>
> --
> Sylvain
>
>>
>> ERROR [COMMIT-LOG-ALLOCATOR] 2012-04-16 13:36:18,790
>> AbstractCassandraDaemon.java (line 134) Exception in thread
>> Thread[COMMIT-LOG-ALLOCATOR,5,main]
>> java.io.IOError: java.io.IOException: Map failed
>>        at
>> org.apache.cassandra.db.commitlog.CommitLogSegment.<init>(CommitLogSeg
>> ment.java:127)
>>        at
>> org.apache.cassandra.db.commitlog.CommitLogSegment.freshSegment(Commit
>> LogSegment.java:80)
>>        at
>> org.apache.cassandra.db.commitlog.CommitLogAllocator.createFreshSegmen
>> t(CommitLogAllocator.java:244)
>>        at
>> org.apache.cassandra.db.commitlog.CommitLogAllocator.access$500(Commit
>> LogAllocator.java:49)
>>        at
>> org.apache.cassandra.db.commitlog.CommitLogAllocator$1.runMayThrow(Com
>> mitLogAllocator.java:104)
>>        at
>> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30
>> )
>>        at java.lang.Thread.run(Unknown Source) Caused by:
>> java.io.IOException: Map failed
>>        at sun.nio.ch.FileChannelImpl.map(Unknown Source)
>>        at
>> org.apache.cassandra.db.commitlog.CommitLogSegment.<init>(CommitLogSeg
>> ment.java:119)
>>        ... 6 more
>> Caused by: java.lang.OutOfMemoryError: Map failed
>>        at sun.nio.ch.FileChannelImpl.map0(Native Method)
>>        ... 8 more
>>  INFO [StorageServiceShutdownHook] 2012-04-16 13:36:18,961
>> CassandraDaemon.java (line 218) Stop listening to thrift clients
>>  INFO [StorageServiceShutdownHook] 2012-04-16 13:36:18,961
>> MessagingService.java (line 539) Waiting for messaging service to
>> quiesce
>>  INFO [ACCEPT-/10.47.1.15] 2012-04-16 13:36:18,977 MessagingService.java (line 695)
MessagingService shutting down server thread.
>>
>> -----Original Message-----
>> From: Sylvain Lebresne [mailto:sylvain@datastax.com]
>> Sent: Friday, April 13, 2012 9:41 AM
>> To: user@cassandra.apache.org
>> Subject: [RELEASE CANDIDATE] Apache Cassandra 1.1.0-rc1 released
>>
>> The Cassandra team is pleased to announce the release of the first release candidate
for the future Apache Cassandra 1.1.
>>
>> Please first note that this is a release candidate, *not* the final release yet.
>>
>> All help in testing this release candidate will be greatly appreciated. Please report
any problem you may encounter[3,4] and have a look at the change log[1] and the release notes[2]
to see where Cassandra 1.1 differs from the previous series.
>>
>> Apache Cassandra 1.1.0-rc1[5] is available as usual from the cassandra website (http://cassandra.apache.org/download/)
and a debian package is available using the 11x branch (see http://wiki.apache.org/cassandra/DebianPackaging).
>>
>> Thank you for your help in testing and have fun with it.
>>
>> [1]: http://goo.gl/XwH7J (CHANGES.txt)
>> [2]: http://goo.gl/JocLX (NEWS.txt)
>> [3]: https://issues.apache.org/jira/browse/CASSANDRA
>> [4]: user@cassandra.apache.org
>> [5]:
>> http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=re
>> fs/tags/cassandra-1.1.0-rc1



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

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