Bug 2227988 - client: do not send metrics until the MDS rank is ready
Summary: client: do not send metrics until the MDS rank is ready
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: CephFS
Version: 5.3
Hardware: Unspecified
OS: Unspecified
unspecified
low
Target Milestone: ---
: 7.0
Assignee: Xiubo Li
QA Contact: Hemanth Kumar
Rivka Pollack
URL:
Whiteboard:
Depends On:
Blocks: 2237662
TreeView+ depends on / blocked
 
Reported: 2023-08-01 05:42 UTC by Xiubo Li
Modified: 2023-12-13 15:21 UTC (History)
7 users (show)

Fixed In Version: ceph-18.2.0-26.el9cp
Doc Type: Enhancement
Doc Text:
.Metric updating requests are no longer sent to MDS Daemons until they are ready Previously, in some cases, when there were a lot of clients and these clients had a lot of known requests needed to be replayed, the metrics requests would be dropped by the MDS Daemons as the MDS would still be in the `clientreplay` state. In addition to this, the metric requests would slow down the MDS Daemons. With this enhancement, metric updating requests are not sent to MDS Daemons until they are ready and everything works as expected.
Clone Of:
Environment:
Last Closed: 2023-12-13 15:21:12 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 61523 0 None None None 2023-08-01 05:45:11 UTC
Red Hat Issue Tracker RHCEPH-7119 0 None None None 2023-08-01 05:43:44 UTC
Red Hat Product Errata RHBA-2023:7780 0 None None None 2023-12-13 15:21:16 UTC

Description Xiubo Li 2023-08-01 05:42:49 UTC 
This bug was initially created as a copy of Bug #2224233

I am copying this bug because: 



In some cases when there are a lot of clients and these clients have a lots of known requests need to replay too, the metrics requests will be dropped by the MDS because the MDS is still in the clientreplay state, and also the useless metric requests will slow down MDS.
Comment 1 RHEL Program Management 2023-08-01 05:42:58 UTC 
Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.
Comment 11 errata-xmlrpc 2023-12-13 15:21:12 UTC 
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 (Red Hat Ceph Storage 7.0 Bug Fix update), 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/RHBA-2023:7780
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