Bug 785675

Summary:	ENOENT when a file is being read during the graph change
Product:	[Community] GlusterFS	Reporter:	Anush Shetty <ashetty>
Component:	fuse	Assignee:	Anand Avati <aavati>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	mainline	CC:	aavati, amarts, chrisw, gluster-bugs
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.4.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-07-24 17:47:25 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	817967

Description Anush Shetty 2012-01-30 09:59:16 UTC

Description of problem: When a file is being read during the graph change, it returns ENOENT

Version-Release number of selected component (if applicable): 3.3.0qa20


How reproducible: Using the volume set operation.


Steps to Reproduce:
1. Create a file and read it from the fuse mount
2. Do a volume set operation 
  
Actual results: Returns ENOENT during the graph change



Additional info:

Client log.

[2012-01-30 15:06:22.602660] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.604144] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.606108] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.607819] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.609625] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.611381] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.612953] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.614549] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.616061] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.617842] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.619489] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.621237] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.622758] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.624978] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.626835] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.628331] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.629922] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.631615] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.633259] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.634714] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.636434] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.638063] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.639537] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.641278] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
[2012-01-30 15:06:22.643535] E [fuse-resolve.c:192:fuse_resolve_gfid] 0-glusterfs-fuse: xl is NULL
(END)

Comment 1 Anand Avati 2012-01-30 10:02:15 UTC

already working on a fix

Comment 2 Anand Avati 2012-02-03 03:38:15 UTC

CHANGE: http://review.gluster.com/2710 (performanc/stat-prefetch: check if loc->gfid is present before checking loc->name) merged in master by Vijay Bellur (vijay)

Comment 3 Anand Avati 2012-02-08 11:13:15 UTC

CHANGE: http://review.gluster.com/2703 (fuse: fix resolver to handle graph switches properly) merged in master by Anand Avati (avati)

Comment 4 Anush Shetty 2012-02-27 06:47:34 UTC

Verified with 3.3.0qa23. Don't see this issue now.