Bug 857336
| Summary: | DHT- able to create two files with same filename at same level | ||||||
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| Product: | [Red Hat Storage] Red Hat Gluster Storage | Reporter: | Rachana Patel <racpatel> | ||||
| Component: | glusterfs | Assignee: | Amar Tumballi <amarts> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | amainkar | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 2.0 | CC: | aavati, bfoster, rhs-bugs, vbellur, vraman | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2012-10-04 00:38:08 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: | |||||||
| Attachments: |
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Created attachment 612744 [details]
mnt-log
Looks like an issue with the backend fs, as the file is created twice under the same directory, with different inode numbers. [root@Rhs1 ~]# ls -li /home/test/1/d1 total 12 269820356 -rw-r--r--. 2 root root 8 Sep 13 16:31 file1 268610978 -rw-r--r--. 2 root root 1406 Sep 13 12:59 file1 268833954 -rw-r--r--. 2 root root 28 Sep 13 16:49 file2 need xfs_metadump output i guess. Need help from filesystem team if the backend filesystem has duplicate files. Are you sure things are not fooling the eye here, that the first "file1" is actually "file1 " (with extra space at the end), or the other way maybe? Actually now I'm quite certain that this is a non-bug entirely.
Firstly - If there indeed were two "file1", I'm wondering how promptly the first lstat("file1") gave attributes and inode number of the first file1 and second lstat("file1") (which is absolutely indistinguishable from the first call) gave different attributes and inode number.
Secondly - The "second" file1, having size 1406 has an extra space in the end. It is actually "file1 ". I could verify this by "double clicking" the white space to the right of the filenames where the browser highlights "empty space". The width of the highlighted "empty space" is equal for the first file1 and file2, but the second "file 2" has a less wider highlighted "empty space" (because of the presence of a valid space at the end).
Asking for help from the filesystem team is surely going to be quite embarrassing :-)
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Description of problem: DHT- able to create two files with same filename at same level Version-Release number of selected component (if applicable): 3.3.0rhs-28.el6rhs.x86_64 How reproducible: not always Steps to Reproduce: 1. Create a Distributed volume having 3 or more sub-volumes on multiple server and start that volume. 2. Fuse Mount the volume from the client-1 using “mount -t glusterfs server:/<volume> <client-1_mount_point>” 3. From mount point create some dirs and files inside it. Actual results: At one point of time was able to create two files with same name at same level Expected results: two files should not have same name at same leve; Additional info: [root@Rhs1 ~]# gluster volume status test Status of volume: test Gluster process Port Online Pid ------------------------------------------------------------------------------ Brick 10.70.35.81:/home/test/1 24013 Y 6447 Brick 10.70.35.85:/home/test/1 24009 Y 2540 Brick 10.70.35.86:/home/test/1 24009 Y 4488 NFS Server on localhost 38467 Y 8320 NFS Server on 10.70.35.85 38467 Y 4376 NFS Server on 10.70.35.86 38467 Y 4494 From mount point [root@client d1]# ls -li total 47 13457337320920020457 -rw-r--r--. 1 root root 0 Sep 13 12:59 f{1..10} 9986897158949792342 -rw-r--r--. 1 root root 8 Sep 13 16:31 file1 10788711374164874802 -rw-r--r--. 1 root root 1406 Sep 13 12:59 file1 10201008087566570220 -rw-r--r--. 1 root root 28 Sep 13 16:49 file2 13727813557709485795 -rw-r--r--. 1 root root 819 Sep 13 13:00 file2 12153990574000815460 -rw-r--r--. 1 root root 43591 Sep 13 13:01 file3 [root@client d1]# stat file1 File: `file1' Size: 8 Blocks: 1 IO Block: 131072 regular file Device: 16h/22d Inode: 9986897158949792342 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-09-13 16:31:23.301796025 +0530 Modify: 2012-09-13 16:31:17.419576226 +0530 Change: 2012-09-13 16:31:17.419576226 +0530 [root@client d1]# stat file2 File: `file2' Size: 28 Blocks: 1 IO Block: 131072 regular file Device: 16h/22d Inode: 10201008087566570220 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-09-13 16:49:10.050576107 +0530 Modify: 2012-09-13 16:49:04.332754684 +0530 Change: 2012-09-13 16:49:04.332754684 +0530 ############# Third sub-vol [root@Rhs3 1]# ls -li /home/test/1/d1 total 48 402653333 -rw-r--r--. 2 root root 0 Sep 13 12:59 f{1..10} 402653343 -rw-r--r--. 2 root root 819 Sep 13 13:00 file2 402653350 -rw-r--r--. 2 root root 43591 Sep 13 13:01 file3 [root@Rhs3 1]# stat /home/test/1/d1/file2 stat: cannot stat `/home/test/1/d1/file2': No such file or directory ############ First sub-vol [root@Rhs1 ~]# ls -li /home/test/1/d1 total 12 269820356 -rw-r--r--. 2 root root 8 Sep 13 16:31 file1 268610978 -rw-r--r--. 2 root root 1406 Sep 13 12:59 file1 268833954 -rw-r--r--. 2 root root 28 Sep 13 16:49 file2 [root@Rhs1 ~]# stat /home/test/1/d1/file1 File: `/home/test/1/d1/file1' Size: 8 Blocks: 8 IO Block: 4096 regular file Device: fc05h/64517d Inode: 269820356 Links: 2 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-09-13 16:31:23.301796025 +0530 Modify: 2012-09-13 16:31:17.419576226 +0530 Change: 2012-09-13 16:31:17.419576226 +0530 [root@Rhs1 ~]# stat /home/test/1/d1/file2 File: `/home/test/1/d1/file2' Size: 28 Blocks: 8 IO Block: 4096 regular file Device: fc05h/64517d Inode: 268833954 Links: 2 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-09-13 16:49:10.050576107 +0530 Modify: 2012-09-13 16:49:04.332754684 +0530 Change: 2012-09-13 16:49:04.332754684 +0530