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Bug 1593123

Summary:	[CephFS]: missing dentries in ceph-fuse readdir result
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Yan, Zheng <zyan>
Component:	CephFS	Assignee:	Patrick Donnelly <pdonnell>
Status:	CLOSED ERRATA	QA Contact:	subhash <vpoliset>
Severity:	high	Docs Contact:
Priority:	low
Version:	3.0	CC:	ceph-eng-bugs, ceph-qe-bugs, john.spray, rperiyas, tchandra
Target Milestone:	z5
Target Release:	3.0
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:	RHEL: ceph-12.2.4-32 Ubuntu: ceph_12.2.4-36redhat1xenial	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-08-09 18:27:11 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 Yan, Zheng 2018-06-20 06:49:00 UTC

Description of problem:

readdir may get stale result after ceph-fuse's session become stale

How reproducible:


Steps to Reproduce:
1. create ceph-fuse mounts, create an empty directory, 'ls' the empty directory from both mount points. 
2. send signal STOP to one ceph-fuse, wait until its session stable become stale
3. create a file in the directory from mount point of another ceph-fuse 
4. send signal CONT to the stopped ceph-fuse, 'ls' the directory from from mount point of the resumed ceph-fuse.

Actual results:
'ls' result does not contain the new file 


Expected results:
'ls' result contains the new file
 


Additional info:

Comment 3 Yan, Zheng 2018-06-20 07:28:10 UTC

zhyan-laptop:ceph zhyan$ git push rh-ceph ceph-3.0-rhel-patches 
Counting objects: 62, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (57/57), done.
Writing objects: 100% (62/62), 11.35 KiB | 726.00 KiB/s, done.
Total 62 (delta 54), reused 5 (delta 5)
remote: Resolving deltas: 100% (54/54)
remote: Processing changes: refs: 1, done    
To ssh://code.engineering.redhat.com/ceph/.git
   0b3592f04c..1e9171374c  ceph-3.0-rhel-patches -> ceph-3.0-rhel-patches

Comment 13 subhash 2018-08-03 10:56:14 UTC

followed the steps in Desc ,the resumed ceph-fuse client has the newly created file in it,moving to verified.
Build: ceph version 12.2.4-45redhat1xenial

Comment 15 errata-xmlrpc 2018-08-09 18:27:11 UTC

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.

https://access.redhat.com/errata/RHBA-2018:2375