Description of problem: ======================= Created a 8+4 disperse volume and attached a 2x2 hot tier. While IO is running, detached hot tier and committed, IO hangs on the client. This is on NFS mount. Version-Release number of selected component (if applicable): ============================================================== 3.7.5-6 [root@vertigo glusterfs]# gluster --version glusterfs 3.7.5 built on Nov 10 2015 00:13:38 Repository revision: git://git.gluster.com/glusterfs.git Copyright (c) 2006-2011 Gluster Inc. <http://www.gluster.com> GlusterFS comes with ABSOLUTELY NO WARRANTY. You may redistribute copies of GlusterFS under the terms of the GNU General Public License. [root@vertigo glusterfs]# How reproducible: ================= 100% Steps to Reproduce: 1. create a 8+4 ec volume and attach a 2x2 dist-rep hot tier 2. NFS mount on the client. untar kernel tarball and while it is in progress detach tier and commit. 3. Check the IO from client Actual results: =============== IO hangs Expected results: ================= IO should continue to run. Additional info: ================ sosreports will be copied to rhsqe.
It seems to be rpc throttle issue. I see so many outstanding requests during attach/detach-tier operations. Once the throttle limit is set to zero, I do not see any hangs. Request QE to try re-runnig the tests after disabling throttling and confirm if the issue still persist. Thanks!
Thank you for your bug report. We are not further root causing this bug, as a result this bug is being closed as WONTFIX. Please reopen if the problem continues to be observed after upgrading to a latest version.