Re: deep-scrubbing

Re: deep-scrubbing

[M Ranga Swami Reddy]

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I use a ceph cluster and its show the deeps scrub's PG distribution as
below from "ceph pg dump" command:

  ====
   2000 Friday
   1000 Saturday
   4000  Sunday
==

On Friday, I have disabled the deep-scrub due to some reason. If this case,
all Friday's PG deep-scrub will be performed on Saturday or is it will be
done on Next Friday?

Thanks
Swami


On Mon, Feb 27, 2017 at 3:54 PM, M Ranga Swami Reddy <swamireddy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:

> Hello,
> I use a ceph cluster and its show the deeps scrub's PG distribution as
> below from "ceph pg dump" command:
>
>   ====
>    2000 Friday
>    1000 Saturday
>    4000  Sunday
> ==
>
> On Friday, I have disabled the deep-scrub due to some reason. If this
> case, all Friday's PG deep-scrub will be performed on Saturday or is it
> will be done on Next Friday?
>
> Thanks
> Swami
>

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Re: deep-scrubbing

[M Ranga Swami Reddy]

+ ceph-devel

On Mon, Feb 27, 2017 at 3:54 PM, M Ranga Swami Reddy
<swamireddy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hello,
> I use a ceph cluster and its show the deeps scrub's PG distribution as below
> from "ceph pg dump" command:
>
>   ====
>    2000 Friday
>    1000 Saturday
>    4000  Sunday
> ==
>
> On Friday, I have disabled the deep-scrub due to some reason. If this case,
> all Friday's PG deep-scrub will be performed on Saturday or is it will be
> done on Next Friday?
>
> Thanks
> Swami

Re: deep-scrubbing

[Sage Weil]

On Mon, 3 Apr 2017, M Ranga Swami Reddy wrote:
> + ceph-devel
> 
> On Mon, Feb 27, 2017 at 3:54 PM, M Ranga Swami Reddy
> <swamireddy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > Hello,
> > I use a ceph cluster and its show the deeps scrub's PG distribution as below
> > from "ceph pg dump" command:
> >
> >   ====
> >    2000 Friday
> >    1000 Saturday
> >    4000  Sunday
> > ==
> >
> > On Friday, I have disabled the deep-scrub due to some reason. If this case,
> > all Friday's PG deep-scrub will be performed on Saturday or is it will be
> > done on Next Friday?

Saturday.

ks

Re: deep-scrubbing

[M Ranga Swami Reddy]

Thanks Sage.
We have older version Ceph (Firefly version), where I could not see
this behavior (is on Saturday, after enabling the deep-scrub @ 7AM
hours, I could not see the deep-scrub started for Friday's PG
deep-scrub)).
Is the deep-scrub's performed based on the time-stamp? For ex: a PG
deep-scrubbed on Friday 10AM and if its not deep-scrubed on the next
Friday 10AM, then Saturday 10AM its will be performed (assumed that
Saturday 7AM deep-scrub enabled).

Thanks
Swami

On Mon, Apr 3, 2017 at 6:57 PM, Sage Weil <sage-BnTBU8nroG7k1uMJSBkQmQ@public.gmane.org> wrote:
> On Mon, 3 Apr 2017, M Ranga Swami Reddy wrote:
>> + ceph-devel
>>
>> On Mon, Feb 27, 2017 at 3:54 PM, M Ranga Swami Reddy
>> <swamireddy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> > Hello,
>> > I use a ceph cluster and its show the deeps scrub's PG distribution as below
>> > from "ceph pg dump" command:
>> >
>> >   ====
>> >    2000 Friday
>> >    1000 Saturday
>> >    4000  Sunday
>> > ==
>> >
>> > On Friday, I have disabled the deep-scrub due to some reason. If this case,
>> > all Friday's PG deep-scrub will be performed on Saturday or is it will be
>> > done on Next Friday?
>
> Saturday.
>
> ks