----- Message from zhu qiang <zhu_qiang_ws at foxmail.com> ---------
Date: Fri, 8 Aug 2014 10:00:18 +0800
From: zhu qiang <zhu_qiang_ws at foxmail.com>
Subject: RE: rados bench no clean cleanup
To: 'Kenneth Waegeman' <Kenneth.Waegeman at UGent.be>, 'ceph-users'
<ceph-users at lists.ceph.com>
> Not "cleanup", it is "--no-cleanup"
I wanted to delete the benchdata, not to keep it:)
>
> -----Original Message-----
> From: ceph-users [mailto:ceph-users-bounces at lists.ceph.com] On
> Behalf Of Kenneth Waegeman
> Sent: Wednesday, August 06, 2014 4:49 PM
> To: ceph-users
> Subject: [ceph-users] rados bench no clean cleanup
>
> Hi,
>
> I did a test with 'rados -p ecdata bench 100000 write' on an ECpool
> with a cache replicated pool over it (ceph 0.83).
> The benchmark wrote about 12TB of data. After the 100000 seconds
> run, rados started to delete his benchmark files.
> But only about 2,5TB got deleted, then rados returned. I tried to do
> it with the cleanup function 'rados -p ecdata cleanup --prefix bench'
> and after a lot of time, it returns:
>
> Warning: using slow linear search
> Removed 2322000 objects
>
> But rados df showed the same statistics as before.
> I ran it again, and it again showed 'Removed 2322000 objects',
> without any change in the rados df statistics.
> It is probably the 'lazy deletion', because if I try to do a 'rados
> get' on it, there is 'No such file or directory'. But I still see
> the objects when I do 'rados -p ecdata ls'.
>
> Is this indeed because of the lazy deletion? Is there a way to see
> how much not-deleted objects are in the pool? And is there then a
> reason why rados did remove the first 2,5TB? Or is this just a rados
> bench issue?:)
>
> Thanks again!
>
> Kenneth
>
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----- End message from zhu qiang <zhu_qiang_ws at foxmail.com> -----
--
Met vriendelijke groeten,
Kenneth Waegeman
