Hi,
disabling scrubbing in general is bad idea, because you won't notice
any data corruption except when it might be too late.
But you can fine tune scrubbing, for example increase the interval to
allow fewer scrubs to finish in a longer interval. Or if the client
load is mainly during business hours, adjust osd_scrub_begin_hour and
osd_scrub_end_hour to your needs.
And it also depends on the size of your PGs. The larger the PGs are,
the longer a deep-scrub would take. So splitting PGs can have a quite
positive effect in general. Inspect 'ceph osd df' output as well as
'ceph pg ls' (BYTES column), you can also share it here if you need
assistance interpreting those values.
Regards,
Eugen
Zitat von Phong Tran Thanh <tranphong079@xxxxxxxxx>:
Hi ceph users!
How about the disable scrub and deep-scrub, i want to disable it because of
its effect on many I/O of my cluster.
If I disable scrub how will it affect my cluster?
If enabled, scrubbing is not complete and takes a long time.
Thank
Skype: tranphong079
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