[Gluster-users] Renaming issue

Pranith Kumar Karampuri pkarampu at redhat.com
Wed Aug 6 15:08:07 UTC 2014 

Louis,
    Do you have a small test case or something we can try to re-create 
the issue?

Pranith
On 08/06/2014 08:33 PM, louisbenoit at videotron.ca wrote:
>  Hi,
>
> Version: gluster 3.4.2
> Use case: on one node a target file is updated while another node is 
> reading it.
> Issue: only about half of the read succeeds.
> The strategy elected is to write to a temporary file then rename the 
> temporary file to the target file.
> During file renaming the gluster log from the reading node complains 
> about stale file handle amongst other things:
>
> [2014-08-06 13:54:24.653951] W 
> [fuse-resolve.c:147:fuse_resolve_gfid_cbk] 0-fuse: 
> f98aa46f-0e37-49bc-b578-8e70bec57a7f: failed to resolve (Invalid argument)
> [2014-08-06 13:54:24.653983] E [fuse-bridge.c:1996:fuse_open_resume] 
> 0-glusterfs-fuse: 428919: OPEN f98aa46f-0e37-49bc-b578-8e70bec57a7f 
> resolution failed
> [2014-08-06 13:54:24.754741] W 
> [client-rpc-fops.c:2697:client3_3_readv_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:24.755263] W 
> [client-rpc-fops.c:1179:client3_3_fgetxattr_cbk] 0-gv0-client-0: 
> remote operation failed: No such file or directory
> [2014-08-06 13:54:24.755302] E 
> [dht-helper.c:725:dht_migration_complete_check_task] 0-gv0-dht: 
> (null): failed to get the 'linkto' xattr No such file or directory
> [2014-08-06 13:54:24.755347] W [fuse-bridge.c:2089:fuse_readv_cbk] 
> 0-glusterfs-fuse: 428921: READ => -1 (No such file or directory)
> [2014-08-06 13:54:24.755687] W 
> [client-rpc-fops.c:2697:client3_3_readv_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:24.756193] W 
> [client-rpc-fops.c:1179:client3_3_fgetxattr_cbk] 0-gv0-client-0: 
> remote operation failed: No such file or directory
> [2014-08-06 13:54:24.756232] E 
> [dht-helper.c:725:dht_migration_complete_check_task] 0-gv0-dht: 
> (null): failed to get the 'linkto' xattr No such file or directory
> [2014-08-06 13:54:24.756267] W [fuse-bridge.c:2089:fuse_readv_cbk] 
> 0-glusterfs-fuse: 428922: READ => -1 (No such file or directory)
> [2014-08-06 13:54:24.756794] W 
> [client-rpc-fops.c:2697:client3_3_readv_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:24.757292] W 
> [client-rpc-fops.c:1179:client3_3_fgetxattr_cbk] 0-gv0-client-0: 
> remote operation failed: No such file or directory
> [2014-08-06 13:54:24.757324] E 
> [dht-helper.c:725:dht_migration_complete_check_task] 0-gv0-dht: 
> (null): failed to get the 'linkto' xattr No such file or directory
> [2014-08-06 13:54:24.757356] W [fuse-bridge.c:2089:fuse_readv_cbk] 
> 0-glusterfs-fuse: 428924: READ => -1 (No such file or directory)
> [2014-08-06 13:54:24.958465] W 
> [client-rpc-fops.c:2697:client3_3_readv_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:24.959020] W 
> [client-rpc-fops.c:1179:client3_3_fgetxattr_cbk] 0-gv0-client-0: 
> remote operation failed: No such file or directory
> [2014-08-06 13:54:24.959059] E 
> [dht-helper.c:725:dht_migration_complete_check_task] 0-gv0-dht: 
> (null): failed to get the 'linkto' xattr No such file or directory
> [2014-08-06 13:54:24.959100] W [fuse-bridge.c:2089:fuse_readv_cbk] 
> 0-glusterfs-fuse: 428929: READ => -1 (No such file or directory)
> [2014-08-06 13:54:24.959420] W 
> [client-rpc-fops.c:2697:client3_3_readv_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:24.959885] W 
> [client-rpc-fops.c:1179:client3_3_fgetxattr_cbk] 0-gv0-client-0: 
> remote operation failed: No such file or directory
> [2014-08-06 13:54:24.959912] E 
> [dht-helper.c:725:dht_migration_complete_check_task] 0-gv0-dht: 
> (null): failed to get the 'linkto' xattr No such file or directory
> [2014-08-06 13:54:24.959949] W [fuse-bridge.c:2089:fuse_readv_cbk] 
> 0-glusterfs-fuse: 428930: READ => -1 (No such file or directory)
> [2014-08-06 13:54:24.960420] W 
> [client-rpc-fops.c:2697:client3_3_readv_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:24.960940] W 
> [client-rpc-fops.c:1179:client3_3_fgetxattr_cbk] 0-gv0-client-0: 
> remote operation failed: No such file or directory
> [2014-08-06 13:54:24.960966] E 
> [dht-helper.c:725:dht_migration_complete_check_task] 0-gv0-dht: 
> (null): failed to get the 'linkto' xattr No such file or directory
> [2014-08-06 13:54:24.960993] W [fuse-bridge.c:2089:fuse_readv_cbk] 
> 0-glusterfs-fuse: 428932: READ => -1 (No such file or directory)
> [2014-08-06 13:54:25.161921] W 
> [client-rpc-fops.c:526:client3_3_stat_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:25.263287] W 
> [client-rpc-fops.c:526:client3_3_stat_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:25.364792] W 
> [client-rpc-fops.c:526:client3_3_stat_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:25.466796] W 
> [client-rpc-fops.c:526:client3_3_stat_cbk] 0-gv0-client-0: remote 
> operation failed: No such file or directory
> [2014-08-06 13:54:25.568329] W 
> [client-rpc-fops.c:2624:client3_3_lookup_cbk] 0-gv0-client-0: remote 
> operation failed: Stale file handle. Path: /target_file 
> (f98aa46f-0e37-49bc-b578-8e70bec57a7f)
> [2014-08-06 13:54:25.568381] W 
> [client-rpc-fops.c:2624:client3_3_lookup_cbk] 0-gv0-client-1: remote 
> operation failed: Stale file handle. Path: /target_file 
> (f98aa46f-0e37-49bc-b578-8e70bec57a7f)
>
> I tried using RSYNC_FRIENDLY_NAME so that the file name hashing is the 
> same for the temporary and target file (all my temporary file follows 
> the rsync pattern ".<target filename>.tmp") but the issue remains.
>
> Is there a way to make the "renaming" atomic? If not what is the best 
> strategy to use when a node tries to read a file while another tries 
> to update it?
>
> Thanks,
>
> Louis
>
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://supercolony.gluster.org/mailman/listinfo/gluster-users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20140806/ac26c7a1/attachment.html>

More information about the Gluster-users mailing list