Bug 1651777

Summary:	MDS may deadlock while processing config changes from admin socket
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Patrick Donnelly <pdonnell>
Component:	CephFS	Assignee:	Venky Shankar <vshankar>
Status:	CLOSED ERRATA	QA Contact:	Persona non grata <nobody+410372>
Severity:	high	Docs Contact:
Priority:	high
Version:	3.0	CC:	ceph-eng-bugs, pdonnell, rperiyas, sweil, tchandra, tserlin
Target Milestone:	z1
Target Release:	3.2
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:	RHEL: ceph-12.2.8-64.el7cp Ubuntu: ceph_12.2.8-49redhat1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-03-07 15:51:12 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:

Description Patrick Donnelly 2018-11-20 19:31:32 UTC

Description of problem:

A race condition exists where the MDS will deadlock while processing config changes from the admin socket.


How reproducible:

Difficult to reproduce without large scale testing and repeated changes to the config.

Comment 6 Ramakrishnan Periyasamy 2019-01-30 10:19:48 UTC

@patrick, Running CephFS teuthology automation and CI regression are enough for this testcase ?

Comment 15 errata-xmlrpc 2019-03-07 15:51:12 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-2019:0475