Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
The FDP team is no longer accepting new bugs in Bugzilla. Please report your issues under FDP project in Jira. Thanks.

Bug 1782911

Summary: [RFE][OVN] increase probe intervals
Product: Red Hat Enterprise Linux Fast Datapath Reporter: Dan Williams <dcbw>
Component: OVNAssignee: Numan Siddique <nusiddiq>
Status: CLOSED WONTFIX QA Contact: Jianlin Shi <jishi>
Severity: medium Docs Contact:
Priority: medium    
Version: RHEL 8.0CC: ctrautma, mmichels, nusiddiq, rkhan
Target Milestone: ---Keywords: FutureFeature
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2023-10-05 14:56:37 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Dan Williams 2019-12-12 16:02:12 UTC 
Investigate increasing the default ovn-controller and SBDB probe intervals. The default is currently 5 seconds for both, but Russell says every single non-trivial deployment hits the 5 second limit and drops connections continuously, requiring eg OpenStack to default to 180 seconds.

Perhaps our defaults in OVN upstream/downstream should be changed.

Or dynamically change the probe interval in ovn-controller based on an average of the last recompute times + some amount of slack.
Comment 1 Numan Siddique 2020-03-30 13:49:25 UTC 
Dynamically changing the probe interval seems a very good idea.
Comment 2 Mark Michelson 2023-10-05 14:56:37 UTC 
I'm closing this issue. At this point, probe intervals are all configurable, allowing for the CMS to increase the probe interval to their desired values. Probe intervals are also not the issue they used to be prior to massive optimizations being added to OVN. Dynamically configuring probe intervals is an interesting idea, but with the way I-P works in ovn-northd and ovn-controller, it could lead to wildly-varying probe intervals if we aren't careful with how it works.

If probe intervals become a major issue again at some point, we can open a new issue about it.