Bug 1291638

Summary:	tier : Demotion failure for char type file
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Jiffin <jthottan>
Component:	tier	Assignee:	hari gowtham <hgowtham>
Status:	CLOSED WONTFIX	QA Contact:	Nag Pavan Chilakam <nchilaka>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rhgs-3.1	CC:	hgowtham, jthottan, nbalacha, rhs-bugs, rkavunga, sankarshan
Target Milestone:	---	Keywords:	Triaged, ZStream
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:	tier-migration
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	1291637	Environment:
Last Closed:	2018-02-06 17:42:40 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:	1291635, 1291637
Bug Blocks:

Description Jiffin 2015-12-15 11:19:37 UTC

+++ This bug was initially created as a clone of Bug #1291637 +++

+++ This bug was initially created as a clone of Bug #1291635 +++

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 6 Shyamsundar 2018-02-06 17:42:40 UTC

Thank you for your bug report.

We are no longer working on any improvements for Tier. This bug will be set to CLOSED WONTFIX to reflect this. Please reopen if the rfe is deemed critical.