Bug 800833 - ENOENT while deleting and creating the same file again
Summary: ENOENT while deleting and creating the same file again
Keywords:
Status: CLOSED UPSTREAM
Alias: None
Product: GlusterFS
Classification: Community
Component: stat-prefetch
Version: mainline
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Raghavendra G
QA Contact:
URL:
Whiteboard:
: 800822 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-03-07 11:15 UTC by Anush Shetty
Modified: 2012-04-27 04:02 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-04-27 04:02:19 UTC
Regression: ---
Mount Type: fuse
Documentation: ---
CRM:
Verified Versions:


Attachments (Terms of Use)

Description Anush Shetty 2012-03-07 11:15:14 UTC
Description of problem: On a single export volume with 2 fuse clients, the file created from one client 1 was deleted from client 2. When I tried creating the file with the same name again from Client 1, it returned ENOENT. 

The md-cache timeout value was set to 30. 


Version-Release number of selected component (if applicable): 3.3.0qa25


How reproducible: Consistently


Steps to Reproduce:
1. Client 1: echo 'abcd' > dot
2. Client 2: rm -rf dot
3. Client 1: echo 'abcd' > dot
  
Actual results:
[root@RHEL6 mnt]# echo 'abcd' > dot
-bash: dot: No such file or directory

Additional info:

[2012-03-07 00:18:13.534141] I [fuse-bridge.c:4089:fuse_graph_setup] 0-fuse: switched to graph 0
[2012-03-07 00:18:13.534383] I [fuse-bridge.c:3336:fuse_init] 0-glusterfs-fuse: FUSE inited with protocol versions: glusterfs 7.13 kernel 7.13
[2012-03-07 00:23:34.910871] W [client3_1-fops.c:375:client3_1_open_cbk] 0-dist-client-0: remote operation failed: No such file or directory. Path: /dot
[2012-03-07 00:23:34.910947] W [fuse-bridge.c:692:fuse_fd_cbk] 0-glusterfs-fuse: 78: OPEN() /dot => -1 (No such file or directory)
[2012-03-07 00:23:37.519608] W [client3_1-fops.c:375:client3_1_open_cbk] 0-dist-client-0: remote operation failed: No such file or directory. Path: /dot
[2012-03-07 00:23:37.519653] W [fuse-bridge.c:692:fuse_fd_cbk]

Comment 1 Raghavendra G 2012-03-16 04:07:57 UTC
with non-zero timeouts, its expected that md-cache can go out of sync. In this case, lookup call is served from stale cache (cache rendered stale by unlink of file from another client) there by resulting in ENOENT errors. If some one wants zero tolerance towards stale-caches, they can use timeout value 0. Closing this bug, since its a known issue.

Comment 2 Raghavendra G 2012-03-16 04:25:53 UTC
*** Bug 800822 has been marked as a duplicate of this bug. ***

Comment 3 Anush Shetty 2012-03-29 07:30:41 UTC
Since we see this issue even when md-cache timeout is 0, reopening this bug.

Comment 4 Anush Shetty 2012-04-27 04:02:19 UTC
This issue is not seen anymore.


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