Re: CephFS: delayed objects deletion ?

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On 03/16/2015 05:14 PM, John Spray wrote:
> With CephFS we have a special definition of "old" that is anything
> that doesn't have the very latest bug fixes ;-)
>
> There have definitely been fixes to stray file handling[1] between
> giant and hammer.  Since with giant you're using a version that is
> neither latest nor LTS, I'd suggest you upgrade to hammer.  Hammer
> also includes some new perf counters related to strays[2] that will
> allow you to see how the purging is (or isn't) progressing.
>
> If you can reproduce this on hammer, then please capture "ceph daemon
> mds.<daemon id> session ls" and "ceph mds tell mds.<daemon id>
> dumpcache /tmp/cache.txt", in addition to the procedure to reproduce. 
> Ideally logs with "debug mds = 10" as well.
>
> Cheers,
> John
>
> 1.
> http://tracker.ceph.com/issues/10387
> http://tracker.ceph.com/issues/10164
>
> 2.
> http://tracker.ceph.com/issues/10388

Thank you John :)

Hammer is not released yet, is it ?
Is it 'safe' to upgrade a production cluster to 0.93 ?
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