Bug #14247: scrubbing and deep scrubbing on OSD startup - Ceph - Ceph

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Bug #14247

closed

scrubbing and deep scrubbing on OSD startup

Added by Mark Nelson over 8 years ago. Updated over 8 years ago.

Status:

Resolved

Priority:

Urgent

Assignee:

Samuel Just

Category:

OSD

Target version:

% Done:

Source:

other

Tags:

Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

This was observed with sage's wip-bluestore branch, but may also be present in master. On creation, OSDs are immediately starting to scrub and deep-scrub PGs in the initially created pools, despite the following ceph.conf values being set:

osd scrub load threshold = 0.01
osd scrub min interval = 137438953472
osd scrub max interval = 137438953472
osd deep scrub interval = 137438953472
osd max scrubs = 16

If I can get through the performance tests I'm running I'll try to grab some logs.

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Updated by Samuel Just over 8 years ago

e6dcf1419a45c6a94c1c543269fa70483f163b41 is suspicious. reg_next_scrub now checks pool.info.opts for the pool settings, but doesn't check the return. If they are missing, scrub*interval are 0 in reg_pg_scrub. ScrubJob() seems to compensate by checking for 0 and using the default, but that does seem sketchy.

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