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Bug 1261882

Summary:	Protocol/client registers grace_timer for disconnect to glusterd
Product:	[Community] GlusterFS	Reporter:	Anoop C S <anoopcs>
Component:	protocol	Assignee:	Anoop C S <anoopcs>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	mainline	CC:	bugs, gluster-bugs
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-16 06:29:18 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 Anoop C S 2015-09-10 11:35:37 UTC

Description of problem:
When lock-heal is enabled for a volume, grace_timer is registered during disconnect received by client translator after a portmap query. This was discovered in client logs as follows.

. . .
[2015-09-10 10:47:41.114371] D [MSGID: 0] [client.c:2027:client_rpc_notify] 0-vol-client-0: got RPC_CLNT_DISCONNECT
[2015-09-10 10:47:41.114446] I [MSGID: 114004] [client.c:197:client_register_grace_timer] 0-vol-client-0: Registering a grace timer
. . .

And this grace_timer is cancelled immediately following the connect to glusterfsd.

[2015-09-10 10:47:41.121995] D [MSGID: 0] [client.c:1987:client_rpc_notify] 0-vol-client-0: got RPC_CLNT_CONNECT
. . .
[2015-09-10 10:47:41.122688] W [MSGID: 114005] [client.c:2014:client_rpc_notify] 0-vol-client-0: Cancelling the grace timer
. . .

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

How reproducible:
100%

Steps to Reproduce:
1. Create a 1-brick volume.
2. Set client log level to DEBUG
gluster volume set <VOLNAME> client-log-level DEBUG
3. Enable lock-healing
gluster volume set <VOLNAME> lock-heal on
4. Mount the volume.
5. Check mount log for the above mentioned entries.

Actual results:
grace_timer was registered.

Expected results:
grace_timer should not be registered.

Comment 1 Vijay Bellur 2015-09-10 11:39:11 UTC

REVIEW: http://review.gluster.org/12152 (protocol/client: Do not register grace_timer for disconnect to glusterd) posted (#1) for review on master by Anoop C S (anoopcs)

Comment 2 Vijay Bellur 2015-09-10 11:40:19 UTC

REVIEW: http://review.gluster.org/12152 (protocol/client: Do not register grace_timer for disconnect to glusterd) posted (#2) for review on master by Anoop C S (anoopcs)

Comment 3 Anoop C S 2015-10-16 06:29:18 UTC

The grace_timer logic is being removed from protocol client and server. Follow https://bugzilla.redhat.com/show_bug.cgi?id=1272030 for further details.