Hi Rafi, Thanks for your response. OK, I think it is possible to capture debug logs, since the error seems to be reproduced a few times per day. I will try that. However, so I want to avoid redundant debug outputs if possible, is there a way to enable debug log only on specific client nodes? Regards Yonex 2016-12-13 23:33 GMT+09:00 Mohammed Rafi K C <rkavunga@xxxxxxxxxx>: > Hi Yonex, > > Is this consistently reproducible ? if so, Can you enable debug log [1] > and check for any message similar to [2]. Basically you can even search > for "EOF on socket". > > You can set your log level back to default (INFO) after capturing for > some time. > > > [1] : gluster volume set <volname> diagnostics.brick-log-level DEBUG and > gluster volume set <volname> diagnostics.client-log-level DEBUG > > [2] : http://pastebin.com/xn8QHXWa > > > Regards > > Rafi KC > > On 12/12/2016 09:35 PM, yonex wrote: >> Hi, >> >> When my application moves a file from it's local disk to FUSE-mounted >> GlusterFS volume, the client outputs many warnings and errors not >> always but occasionally. The volume is a simple distributed volume. >> >> A sample of logs pasted: http://pastebin.com/axkTCRJX >> >> It seems to come from something like a network disconnection >> ("Transport endpoint is not connected") at a glance, but other >> networking applications on the same machine don't observe such a >> thing. So I guess there may be a problem somewhere in GlusterFS stack. >> >> It ended in failing to rename a file, logging PHP Warning like below: >> >> PHP Warning: rename(/glusterfs01/db1/stack/f0/13a9a2f0): failed >> to open stream: Input/output error in [snipped].php on line 278 >> PHP Warning: >> rename(/var/stack/13a9a2f0,/glusterfs01/db1/stack/f0/13a9a2f0): >> Input/output error in [snipped].php on line 278 >> >> Conditions: >> >> - GlusterFS 3.8.5 installed via yum CentOS-Gluster-3.8.repo >> - Volume info and status pasted: http://pastebin.com/JPt2KeD8 >> - Client machines' OS: Scientific Linux 6 or CentOS 6. >> - Server machines' OS: CentOS 6. >> - Kernel version is 2.6.32-642.6.2.el6.x86_64 on all machines. >> - The number of connected FUSE clients is 260. >> - No firewall between connected machines. >> - Neither remounting volumes nor rebooting client machines take effect. >> - It is caused by not only rename() but also copy() and filesize() operation. >> - No outputs in brick logs when it happens. >> >> Any ideas? I'd appreciate any help. >> >> Regards. >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users@xxxxxxxxxxx >> http://www.gluster.org/mailman/listinfo/gluster-users > _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
