[Lustre-discuss] advice on OST journals in OSS failover pairs

[Peter Jones]

Indeed. I believe that I am right in saying that LLNL and all DDN sites 
have async journal commits on by default. The issues that I am aware of 
were reported against the pre-release version of the code while it was 
still in development.

On 11-02-13 4:24 PM, Oleg Drokin wrote:
> Hello!
>
> On Feb 13, 2011, at 7:18 PM, Samuel Aparicio wrote:
>
>>> Also you might want try async journal commits (+ make your journals big) to see if that improves your performance in a similar way to an external journal.
>> we thought about testing this but I also saw a number of bug reports around async commits in failover configurations. Is this stable/available for 1.8.5?
> It is believed that all bugs are currently fixed.
> I believe that Oak Ridge National Laboratory uses async journals for quite a while on their systems.
> There are some other big users, I think.
>
> Bye,
>      Oleg
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