Bug 1291635

Summary:	tier : Demotion failure for char type file
Product:	[Community] GlusterFS	Reporter:	Jiffin <jthottan>
Component:	tiering	Assignee:	Jiffin <jthottan>
Status:	CLOSED CURRENTRELEASE	QA Contact:	bugs <bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	mainline	CC:	bugs, jthottan, nbalacha, rkavunga
Target Milestone:	---	Keywords:	Triaged
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:	glusterfs-4.1.3 (or later)	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1291637 (view as bug list)		Environment:
Last Closed:	2018-08-29 03:37:33 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:	1291637, 1291638

Description Jiffin 2015-12-15 11:16:17 UTC

Description of problem:
Demotion failure for char type file. It should fail all special(CHAR, BLOCK, SOCKET etc) type files other than regular, but for me issue is seen in char type file. From the logs, it is clear that lookup(dht_revalidate_cbk) on this file failed in cold tier due to type mismatch 

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

How reproducible:
always

Steps to Reproduce:
1.Create and start a tier volume
2.set tier mod= test(preferable to use other demotion paremeters)
3.mount the volume(any protocol) 
4.create a char type file using mknod
5.after some time(promotion will happen)
6.When tier daemon tries to demote, it will fail. Failure messages are flooded in tier log

Actual results:
Demotion failed

Expected results:
Demotion should not fail

Additional info:
snippet from tier daemon log :

[2015-12-11 13:00:10.407115] E [MSGID: 109037] [tier.c:1489:tier_start] 0-test-tier-dht: Demotion failed
13:00:10.355941] and [2015-12-11 13:00:20.417126]
[2015-12-11 13:00:20.421914] W [MSGID: 109008] [dht-common.c:826:dht_revalidate_cbk] 0-test-cold-dht: mismatching filetypes 01 v/s 05 for //char, gfid = b7f40bcd-3153-4619-bd19-28797d1b5ce5
[2015-12-11 13:00:20.421987] W [MSGID: 109023] [dht-rebalance.c:969:migrate_special_files] 0-test-tier-dht: //char: lookup failed (Invalid argument)
[2015-12-11 13:00:20.422605] E [MSGID: 109037] [tier.c:489:tier_migrate_using_query_file] 0-test-tier-dht: Failed to migrate char


char is file name

Comment 1 Vijay Bellur 2015-12-17 09:41:17 UTC

REVIEW: http://review.gluster.org/12993 (xlator/ctr : Measure heat count only for regular files) posted (#1) for review on master by jiffin tony Thottan (jthottan)

Comment 2 Vijay Bellur 2016-01-11 06:03:34 UTC

REVIEW: http://review.gluster.org/12993 (xlator/ctr : Measure heat count only for regular files) posted (#2) for review on master by jiffin tony Thottan (jthottan)

Comment 3 Mike McCune 2016-03-28 22:50:27 UTC

This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune with any questions

Comment 4 Amar Tumballi 2018-08-29 03:37:33 UTC

This update is done in bulk based on the state of the patch and the time since last activity. If the issue is still seen, please reopen the bug.