Red Hat Bugzilla – Bug 1392905
Rebalance should skip the file if the file has hardlinks instead of failing
Last modified: 2018-09-17 05:34:57 EDT
Description of problem: ======================= During rebalance, if the file has hardlinks the file should get skipped but rebalance is attempting to migrate the file and is getting failed. Version-Release number of selected component (if applicable): 3.8.4-3.el7rhgs.x86_64 How reproducible: ================= Always Steps to Reproduce: =================== 1) Create a distributed replicate volume and start it. 2) FUSE mount the volume. 3) From mount point, create few files. Lets say 100 files. 4) Create hard links to all the created files. 5) Add few bricks and trigger rebalance. Wait till the rebalance completes. We are seeing many failures in rebalance as the file has hardlinks. As rebalance will not migrate a file if it has hardlinks those files should get skipped during rebalance. Actual results: =============== Failures in rebalance as the file has hardlinks. Expected results: ================= Rebalance should skip the file if a file has hardlinks instead of failing.
We will not take this for 3.2.0 as it is not a critical issue.
Upstream patch: http://review.gluster.org/15810
Verified this BZ on glusterfs version 3.12.2-7.el7rhgs.x86_64. Followed the steps mentioned in the description. Now, if the file has hardlinks rebalance is skipping those files for migration. 2018-04-13 12:38:19.777319] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_12: file has hardlinks [2018-04-13 12:38:24.982930] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_19: file has hardlinks [2018-04-13 12:38:25.472224] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_9: file has hardlinks [2018-04-13 12:38:26.576203] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_4: file has hardlinks [2018-04-13 12:38:27.422177] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_18: file has hardlinks [2018-04-13 12:38:28.617461] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_7: file has hardlinks [2018-04-13 12:38:29.067173] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_123: file has hardlinks [2018-04-13 12:38:29.114455] W [MSGID: 109023] [dht-rebalance.c:595:__check_file_has_hardlink] 0-ec_new-dht: Migration skipped for:/a/b/c/cat_82: file has hardlinks Moving this BZ to Verified.
Doc text has been updated. Kindly review
(In reply to Srijita Mukherjee from comment #10) > Doc text has been updated. Kindly review ack.
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