Back to bug 2076850

Who When What Removed Added
Bipin Kunal 2022-04-20 05:22:29 UTC Target Release 6.0 5.2
Whiteboard EmergencyRequest
Red Hat One Jira (issues.redhat.com) 2022-04-20 05:25:02 UTC Link ID Red Hat Issue Tracker RHCEPH-4135
Red Hat Bugzilla 2022-05-09 08:32:29 UTC CC aos-bugs
Greg Farnum 2022-05-23 13:53:03 UTC CC vshankar
Flags needinfo?(vshankar)
Venky Shankar 2022-05-24 05:52:50 UTC Flags needinfo?(vshankar)
Venky Shankar 2022-05-24 12:27:20 UTC Status NEW POST
Red Hat Bugzilla 2022-05-24 18:50:54 UTC CC gagore
Ken Dreyer (Red Hat) 2022-05-24 22:30:41 UTC Fixed In Version ceph-16.2.8-10.el8cp
CC kdreyer
Status POST MODIFIED
errata-xmlrpc 2022-05-24 23:39:37 UTC Status MODIFIED ON_QA
Red Hat Bugzilla 2022-05-26 08:30:15 UTC CC ceph-qe-bugs
Hemanth Kumar 2022-05-30 17:46:25 UTC Flags needinfo?(vshankar)
Venky Shankar 2022-06-03 09:55:35 UTC Flags needinfo?(vshankar) needinfo?(xiubli)
Xiubo Li 2022-06-06 04:08:16 UTC Flags needinfo?(xiubli)
Hemanth Kumar 2022-06-13 15:29:37 UTC Status ON_QA VERIFIED
Xiubo Li 2022-06-14 01:34:53 UTC Flags needinfo?(hyelloji)
Hemanth Kumar 2022-06-16 06:17:56 UTC Flags needinfo?(hyelloji)
Akash Raj 2022-07-06 08:20:31 UTC Blocks 2102272
Docs Contact akraj
CC akraj
Flags needinfo?(vshankar)
Xiubo Li 2022-07-06 08:50:53 UTC Doc Type If docs needed, set a value Bug Fix
Flags needinfo?(vshankar)
Doc Text Cause: When opening a file for reading the MDS will revoke the Fw capability from other clients, and when the Fw capability is released the MDS couldn't flush the mdlog immediately, which will block the Fr capability to be granted.


Consequence: The process requesting the file open for reading will be stuck for at most 5 seconds, until the mdlogs are flushed by MDS periodically per 5 seconds.


Fix: Trigger to flush the mdlogs immediately when there is any capability wanted when releasing the Fw capability.

Result: The open for reading could act as quickly as possible.
Akash Raj 2022-07-13 06:26:49 UTC Flags needinfo?(vshankar)
Doc Text Cause: When opening a file for reading the MDS will revoke the Fw capability from other clients, and when the Fw capability is released the MDS couldn't flush the mdlog immediately, which will block the Fr capability to be granted.


Consequence: The process requesting the file open for reading will be stuck for at most 5 seconds, until the mdlogs are flushed by MDS periodically per 5 seconds.


Fix: Trigger to flush the mdlogs immediately when there is any capability wanted when releasing the Fw capability.

Result: The open for reading could act as quickly as possible.
.The `mdlog` is flushed immediately when opening a file for reading

Previously, when opening a file for reading, MDS would revoke the Fw capability from the other clients and when the Fw capability was released, the MDS could not flush the `mdlog` immediately and would block the Fr capability. This would cause the process that requested for a file to be stuck for about 5 seconds until the `mdlog` was flushed by MDS periodically every 5 seconds.

With this release, the `mdlog` flush is triggered immediately when there is any capability wanted when releasing the Fw capability and you can open the file for reading quickly.
Venky Shankar 2022-07-13 09:36:07 UTC Flags needinfo?(vshankar)
errata-xmlrpc 2022-08-09 09:58:54 UTC Group redhat
CC tserlin
Status VERIFIED RELEASE_PENDING
errata-xmlrpc 2022-08-09 17:38:20 UTC Resolution --- ERRATA
Status RELEASE_PENDING CLOSED
Last Closed 2022-08-09 17:38:20 UTC
errata-xmlrpc 2022-08-09 17:38:54 UTC Link ID Red Hat Product Errata RHSA-2022:5997

Back to bug 2076850