+++ This bug was initially created as a clone of Bug #1693575 +++ Description of problem: With https://review.gluster.org/#/c/glusterfs/+/21783/, we have made changes to offload processing upcall notifications to synctask so as not to block epoll threads. However seems like the purpose wasnt fully resolved. In "glfs_cbk_upcall_data" -> "synctask_new1" after creating synctask if there is no callback defined, the thread waits on synctask_join till the syncfn is finished. So that way even with those changes, epoll threads are blocked till the upcalls are processed. Hence the right fix now is to define a callback function for that synctask "glfs_cbk_upcall_syncop" so as to unblock epoll/notify threads completely and the upcall processing can happen in parallel by synctask threads. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: --- Additional comment from Soumya Koduri on 2019-03-28 09:28:58 UTC --- Users have complained about nfs-ganesha process getting stuck here - https://github.com/nfs-ganesha/nfs-ganesha/issues/335 --- Additional comment from Worker Ant on 2019-03-28 09:34:11 UTC --- REVIEW: https://review.gluster.org/22436 (gfapi: Unblock epoll thread for upcall processing) posted (#1) for review on master by soumya k --- Additional comment from Worker Ant on 2019-03-29 07:25:10 UTC --- REVIEW: https://review.gluster.org/22436 (gfapi: Unblock epoll thread for upcall processing) merged (#4) on master by Amar Tumballi
REVIEW: https://review.gluster.org/22460 (gfapi: Unblock epoll thread for upcall processing) posted (#1) for review on release-5 by soumya k
REVIEW: https://review.gluster.org/22460 (gfapi: Unblock epoll thread for upcall processing) merged (#1) on release-5 by soumya k
This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-5.6, please open a new bug report. glusterfs-5.6 has been announced on the Gluster mailinglists [1], packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist [2] and the update infrastructure for your distribution. [1] https://lists.gluster.org/pipermail/announce/2019-April/000123.html [2] https://www.gluster.org/pipermail/gluster-users/