Dmitry Isakbayev
2018-Dec-27 20:21 UTC
[Gluster-users] java application crushes while reading a zip file
Attempted to set 'performance.read-ahead off` according to https://jira.apache.org/jira/browse/AMQ-7041 That did not help. On Mon, Dec 24, 2018 at 2:11 PM Dmitry Isakbayev <isakdim at gmail.com> wrote:> The core file generated by JVM suggests that it happens because the file > is changing while it is being read - > https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8186557. > 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. > > Regards, > Dmitry > > >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20181227/0c6a066b/attachment.html>
Raghavendra Gowdappa
2018-Dec-27 20:48 UTC
[Gluster-users] java application crushes while reading a zip file
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> wrote:> Attempted to set 'performance.read-ahead off` according to > https://jira.apache.org/jira/browse/AMQ-7041 > That did not help. > > On Mon, Dec 24, 2018 at 2:11 PM Dmitry Isakbayev <isakdim at gmail.com> > wrote: > >> The core file generated by JVM suggests that it happens because the file >> is changing while it is being read - >> https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8186557. >> 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. >> >> Regards, >> Dmitry >> >> >> _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > https://lists.gluster.org/mailman/listinfo/gluster-users-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20181228/967da5e5/attachment.html>