Bug 1552094

Summary:	ceph-objectstore-tool command to trim the pg log
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Vikhyat Umrao <vumrao>
Component:	RADOS	Assignee:	David Zafman <dzafman>
Status:	CLOSED ERRATA	QA Contact:	Parikshith <pbyregow>
Severity:	urgent	Docs Contact:	Erin Donnelly <edonnell>
Priority:	urgent
Version:	3.0	CC:	ceph-eng-bugs, ceph-qe-bugs, dzafman, edonnell, hnallurv, jdurgin, kchai, kdreyer, rperiyas, tserlin
Target Milestone:	z2
Target Release:	3.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	RHEL: ceph-12.2.4-2.el7cp Ubuntu: ceph_12.2.4-3redhat1	Doc Type:	Bug Fix
Doc Text:	Previously, an underlying issue caused the placement group (PG) log to grow without bound in certain situations. This caused OSDs to crash and stalled startup. With this release, the "trim-pg-log" operation has been added to "ceph-objectstore-tool" to allow offline trimming of large PG logs. This restores the PG log within the designated size limits.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-04-26 17:38:40 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1557269

Description Vikhyat Umrao 2018-03-06 13:47:35 UTC

Description of problem:
ceph-objectstore-tool command to trim the pg log

Version-Release number of selected component (if applicable):
Red Hat Ceph Storage 3.0 - 12.2.1-40.el7cp

Comment 1 Vikhyat Umrao 2018-03-06 13:48:29 UTC

The motive of this bug is to have a command to trim the pg log without consuming a lot of memory and CPU which makes the OSD node unstable.

Comment 15 Vikhyat Umrao 2018-03-13 14:46:48 UTC

Luminous backport:

http://tracker.ceph.com/issues/23275
https://github.com/ceph/ceph/pull/20803

Comment 45 errata-xmlrpc 2018-04-26 17:38:40 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:1259