[Gluster-users] java application crushes while reading a zip file
isakdim at gmail.com
Thu Dec 27 21:43:06 UTC 2018
Thank for the suggestion.
I am suing
[root at jl-fanexoss1p glusterfs]# gluster --version
[root at jl-fanexoss1p glusterfs]# hostnamectl
Icon name: computer-vm
Machine ID: e44b8478ef7a467d98363614f4e50535
Boot ID: eed98992fdda4c88bdd459a89101766b
Operating System: Red Hat Enterprise Linux Server 7.5 (Maipo)
CPE OS Name: cpe:/o:redhat:enterprise_linux:7.5:GA:server
Kernel: Linux 3.10.0-862.14.4.el7.x86_64
I have configured the following options
[root at jl-fanexoss1p glusterfs]# gluster volume info
Volume Name: gv0
Volume ID: 5ffbda09-c5e2-4abc-b89e-79b5d8a40824
Snapshot Count: 0
Number of Bricks: 1 x 3 = 3
I don't know if it is related, but I am seeing a lot of
[2018-12-27 20:19:23.776080] W [MSGID: 114031]
[client-rpc-fops_v2.c:1932:client4_0_seek_cbk] 2-gv0-client-0: remote
operation failed [No such device or address]
[2018-12-27 20:19:47.735190] E [MSGID: 101191]
[event-epoll.c:671:event_dispatch_epoll_worker] 2-epoll: Failed to dispatch
And java.io exceptions trying to rename files.
On Thu, Dec 27, 2018 at 3:48 PM Raghavendra Gowdappa <rgowdapp at redhat.com>
> What version of glusterfs are you using? It might be either
> * a stale metadata issue.
> * inconsistent ctime issue.
> Can you try turning off all performance xlators? If the issue is 1, that
> should help.
> On Fri, Dec 28, 2018 at 1:51 AM Dmitry Isakbayev <isakdim at gmail.com>
>> Attempted to set 'performance.read-ahead off` according to
>> That did not help.
>> On Mon, Dec 24, 2018 at 2:11 PM Dmitry Isakbayev <isakdim at gmail.com>
>>> The core file generated by JVM suggests that it happens because the file
>>> is changing while it is being read -
>>> The application reads in the zipfile and goes through the zip entries,
>>> then reloads the file and goes the zip entries again. It does so 3 times.
>>> The application never crushes on the 1st cycle but sometimes crushes on the
>>> 2nd or 3rd cycle.
>>> The zip file is generated about 20 seconds prior to it being used and is
>>> not updated or even used by any other application. I have never seen this
>>> problem on a plain file system.
>>> I would appreciate any suggestions on how to go debugging this issue. I
>>> can change the source code of the java application.
>> Gluster-users mailing list
>> Gluster-users at gluster.org
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