Bug 1797520 - [OVN] Reduce ovsdb-server notifications when health checking ovn-controller
Summary: [OVN] Reduce ovsdb-server notifications when health checking ovn-controller
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux Fast Datapath
Classification: Red Hat
Component: ovn2.13
Version: FDP 20.A
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: ---
: ---
Assignee: Lucas Alvares Gomes
QA Contact: Jianlin Shi
URL:
Whiteboard:
Depends On:
Blocks: 1797685
TreeView+ depends on / blocked
 
Reported: 2020-02-03 11:09 UTC by Daniel Alvarez Sanchez
Modified: 2022-10-12 10:12 UTC (History)
6 users (show)

Fixed In Version:
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Last Closed: 2020-10-22 10:47:49 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker FD-429 0 None None None 2022-10-12 10:12:01 UTC

Description Daniel Alvarez Sanchez 2020-02-03 11:09:38 UTC 
When ovn-controller signals that it is alive through its Chassis row, this change is notified to all clients connected to the SB database. In large deployments, this can create a lot of stress.

There is a proposed solution upstream [0] to make use of a Private_Chassis table where clients won't get notified of these healthchecks. It can be leveraged as well by other agetns such as OSP Networking-ovn metadata agent through an external_ids command.

More info in the commit message of the linked patch.

[0] https://patchwork.ozlabs.org/patch/899608/
Comment 2 Dumitru Ceara 2020-02-21 08:30:37 UTC 
RFC patch sent upstream by Lucas: https://patchwork.ozlabs.org/patch/1240755/
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