skip / disable journal

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* skip / disable journal
@ 2013-04-15 20:24 Stefan Priebe
  2013-04-15 22:48 ` Dan Mick
  0 siblings, 1 reply; 2+ messages in thread
From: Stefan Priebe @ 2013-04-15 20:24 UTC (permalink / raw)
  To: ceph-devel@vger.kernel.org

Hello list,

is there a possibility to disable / skip the jornal? Stuff like 
FlashCache, BCache and others seem to work much better but sequential 
I/O becomes a bottleneck if the ceph journal is on a single ssd.

Greets,
Stefan

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: skip / disable journal
  2013-04-15 20:24 skip / disable journal Stefan Priebe
@ 2013-04-15 22:48 ` Dan Mick
  0 siblings, 0 replies; 2+ messages in thread
From: Dan Mick @ 2013-04-15 22:48 UTC (permalink / raw)
  To: Stefan Priebe; +Cc: ceph-devel@vger.kernel.org



On 04/15/2013 01:24 PM, Stefan Priebe wrote:

> is there a possibility to disable / skip the jornal? Stuff like
> FlashCache, BCache and others seem to work much better but sequential
> I/O becomes a bottleneck if the ceph journal is on a single ssd.

As far as I know, the journal is a required element for consistency. 
Sequential I/O is a benefit of the journal.

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2013-04-15 22:49 UTC | newest]

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2013-04-15 20:24 skip / disable journal Stefan Priebe
2013-04-15 22:48 ` Dan Mick

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