hi, you could restrict scrub to certain times of day based on https://github.com/ceph/ceph/pull/3318. You could set osd_scrub_begin_hour and osd_scrub_begin_hour which are suitable for you. This feature is available since 0.93. But it has not been backport to 0.87 (hammer). 2015-04-13 12:55 GMT+08:00 Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx>: > > On 13 April 2015 at 11:02, Christian Balzer <chibi@xxxxxxx> wrote: >> >> Yeah, that's a request/question that comes up frequently. >> And so far there's no option in Ceph to do that (AFAIK), it would be >> really nice along with scheduling options (don't scrub during peak hours), >> which have also been talked about. > > > > > I was just about to post a question on that ... :) > > Just had devs and support bitching to me that all their VM's were running > like dogs (they were). Ceph decided to run a deep scrub Monday afternoon. > > It boggles me that there are no options for controlling the schedule, > considering how critically important the timing is. I'd be happy to run a > deep scrub ever night at 1am. Anytime during the day is a disaster. > > So currently I have noscrub and nodeep-scrub set which is really less than > ideal. > > > -- > Lindsay > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Regards, xinze _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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