Bug 924261 – cfg service: When shutdown cannot be processed immediately, it's not possible to repeat

Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.

Bug 924261 - cfg service: When shutdown cannot be processed immediately, it's not possible to repeat

Summary:	cfg service: When shutdown cannot be processed immediately, it's not possible...

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	corosync (Show other bugs)
Sub Component:
Version:	6.4
Hardware:	Unspecified Unspecified

Priority	high Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Jan Friesse
QA Contact:	Cluster QE
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	960054 907894
	Show dependency tree / graph

Reported:	2013-03-21 08:57 EDT by Jan Friesse
Modified:	2015-09-27 22:28 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:	corosync-1.4.1-16.el6
Doc Type:	Bug Fix
Doc Text:	Cause: In very rare conditions, running corosync-cfgtool -H. Consequence: corosync-cfgtool -H returns error 6 (CS_ERR_TRY_AGAIN). When command is called again, error (CS_ERR_EXISTS) is always returned. Fix: corosync-cfgtool is changed to automatically retry (so no longer error 6 - CS_ERR_TRY_AGAIN). cfg library now allows call shutdown function multiple times. Result: corosync-cfgtool -H works all time.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2013-11-20 23:33:37 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Proposed patch - part 1 - When send_shutdown fails, clear shutdown_con (928 bytes, patch) 2013-03-21 08:57 EDT, Jan Friesse	no flags	Details \| Diff
Proposed patch - part 2 - cfgtool Retry shutdown on CS_ERR_TRY_AGAIN (1.38 KB, patch) 2013-03-21 09:03 EDT, Jan Friesse	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHBA-2013:1531	normal	SHIPPED_LIVE	corosync bug fix and enhancement update	2013-11-20 19:40:57 EST

Groups: None (edit)

Description Jan Friesse 2013-03-21 08:57:12 EDT

Created attachment 713828 [details]
Proposed patch - part 1 - When send_shutdown fails, clear shutdown_con

Description of problem:
When send_shutdown fails (usually CS_ERR_TRY_AGAIN), shutdown_con is still set, and next call will check that shutdown_con is set and refuses to shutdown. Also in corosync-cfgtool, shutdown should be repeated if err = CS_ERR_TRY_AGAIN.

Version-Release number of selected component (if applicable):
Any

How reproducible:
0.000001% with blackbox testing

Steps to Reproduce:
1. https://github.com/jfriesse/csts/blob/master/tests/start-cfgstop-one-by-one-with-load.sh
2. From time to time, result is (Can't shutdown, error 6) (error 6 is CS_ERR_TRY_AGAIN). Recalling of function (with patch 2) returns CS_ERR_EXISTS.

Actual results:
corosync-cfgtool -H doesn't work with high loaded cluster

Expected results:
corosync-cfgtool -H Always works

Additional info:

Comment 1 Jan Friesse 2013-03-21 09:03:41 EDT

Created attachment 713830 [details]
Proposed patch - part 2 - cfgtool Retry shutdown on CS_ERR_TRY_AGAIN

Comment 11 errata-xmlrpc 2013-11-20 23:33:37 EST

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.

http://rhn.redhat.com/errata/RHBA-2013-1531.html

Note You need to log in before you can comment on or make changes to this bug.