Red Hat Bugzilla – Bug 1518260
EC DISCARD doesn't punch hole properly
Last modified: 2018-09-17 12:50:28 EDT
+++ This bug was initially created as a clone of Bug #1516206 +++ Description of problem: DISCARD operation on EC volume doesn't punch hole properly in some cases. How reproducible: Always Steps to Reproduce: 1. Create 4+2 EC volume 2. Create file dd if=/dev/urandom of=/mnt/file bs=1024 count=8 3. Punch hole fallocate -p -o 1500 -l 3000 /mnt/file 4. When checked hole size is less than the specified size. Actual results: Expected results: Discard should punch hole of the size specified. --- Additional comment from Worker Ant on 2017-11-22 04:57:37 EST --- REVIEW: https://review.gluster.org/18838 (cluster/ec: EC DISCARD doesn't punch hole properly) posted (#1) for review on master by Sunil Kumar Acharya --- Additional comment from Worker Ant on 2017-11-28 04:35:06 EST --- COMMIT: https://review.gluster.org/18838 committed in master by \"Sunil Kumar Acharya\" <sheggodu@redhat.com> with a commit message- cluster/ec: EC DISCARD doesn't punch hole properly Problem: DISCARD operation on EC volume was punching hole of lesser size than the specified size in some cases. Solution: EC was not handling punch hole for tail part in some cases. Updated the code to handle it appropriately. BUG: 1516206 Change-Id: If3e69e417c3e5034afee04e78f5f78855e65f932 Signed-off-by: Sunil Kumar Acharya <sheggodu@redhat.com>
Upstream Patch: https://review.gluster.org/#/c/18838/
retested on 3.12.2-8 the above case. Hole was punched properly. Note: however the log message was not seen
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2018:2607