[LU-3421] (ost_handler.c:1762:ost_blocking_ast()) Error -2 syncing data on lock cancel causes first ENOSPC client issues then MDS server locks up

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.1, Lustre 2.5.0
• Affects Version/s: Lustre 2.4.0
• Labels: llnl
• Environment: RHEL6.4 running with Lutsre 2.4-rc2 and cray clients running [2.4.0-rc1 SLES11 SP1 / 2.4.0-rc2 SLES11 SP2] clients
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: James A Simmons

Description

Several times during our test shot we would encounter a situation where OSTs would report ENOSPC even tho there was enough space and inodes available. In time the MDS would become pinned and it would have to be rebooted to get a working file system again. I have attached the console logs for the MDS and OSS.

Issue Links

• is related to: LU-1947 OST ZFS grant shortage on precreate