Hi Alon, Sorry for the late response, got pulled into multiple things. The actual issue was reported as a part of bug 6595(https://bugs.opendaylight.org/show_bug.cgi?id=6595) wherein the OpenFlow plugin failed to process a port status message because the message came from a switch before it started the service as MASTER for the switch.
Analysing the logs attached to this bug I was not able to come to any conclusion. To analyse the issue further we need the logs by setting the log level as log:set DEBUG org.opendaylight.openflowplugin.impl I assume that we see the issue when the number of switches(DPNs) are high, hence we need to check what is the typical delay between the MASTERSHIP grant and the ports coming up and adjust the delay accordingly. We can also get the relevant information in a wireshark capture that would demarcate when the ROLE_REQ is processed by the switch and when the PORT STATUS is sent. Thanks, shuva From: Kochba, Alon [mailto:[email protected]] Sent: Monday, December 05, 2016 9:27 PM To: Vishal Thapar; Sam Hague; Dayavanti Gopal Kamath; Shuva Jyoti Kar Cc: Anil Vishnoi; Aizer, Koby Subject: RE: FW: [openflowplugin-dev] Error processing port status message Hi, still waiting for *any* response. Please give some feedback as SR2 is very near and this is possibly blocking. Thanks, --alon From: Vishal Thapar [mailto:[email protected]] Sent: Thursday, 1 December 2016 14:53 To: Kochba, Alon <[email protected]<mailto:[email protected]>>; Sam Hague <[email protected]<mailto:[email protected]>>; Dayavanti Gopal Kamath <[email protected]<mailto:[email protected]>>; Shuva Jyoti Kar <[email protected]<mailto:[email protected]>> Cc: Anil Vishnoi <[email protected]<mailto:[email protected]>>; Aizer, Koby <[email protected]<mailto:[email protected]>> Subject: RE: FW: [openflowplugin-dev] Error processing port status message Sory Alon, totally forgot about it Adding Shuva. From: Kochba, Alon [mailto:[email protected]] Sent: 01 December 2016 18:20 To: Vishal Thapar <[email protected]<mailto:[email protected]>>; Sam Hague <[email protected]<mailto:[email protected]>>; Dayavanti Gopal Kamath <[email protected]<mailto:[email protected]>> Cc: Anil Vishnoi <[email protected]<mailto:[email protected]>>; Aizer, Koby <[email protected]<mailto:[email protected]>> Subject: RE: FW: [openflowplugin-dev] Error processing port status message Hi, Our QA stepped on this bug again today, could anyone please provide some input? Thanks, --alon From: Vishal Thapar [mailto:[email protected]] Sent: Monday, 28 November 2016 19:26 To: Sam Hague <[email protected]<mailto:[email protected]>>; Kochba, Alon <[email protected]<mailto:[email protected]>>; Dayavanti Gopal Kamath <[email protected]<mailto:[email protected]>> Cc: Anil Vishnoi <[email protected]<mailto:[email protected]>>; Aizer, Koby <[email protected]<mailto:[email protected]>> Subject: RE: FW: [openflowplugin-dev] Error processing port status message Hi Sam, Tomorrow we’re having an offsite so no one will be able to take a look till Wednesday. If Anil is unable to take a quick look by them, I’ll bring it up with Shuva. Regarsd, Vishal. From: Sam Hague [mailto:[email protected]] Sent: 28 November 2016 22:53 To: Kochba, Alon <[email protected]<mailto:[email protected]>>; Dayavanti Gopal Kamath <[email protected]<mailto:[email protected]>>; Vishal Thapar <[email protected]<mailto:[email protected]>> Cc: Anil Vishnoi <[email protected]<mailto:[email protected]>>; Aizer, Koby <[email protected]<mailto:[email protected]>> Subject: Re: FW: [openflowplugin-dev] Error processing port status message Adding Daya and Vishal if they know someone who could take a look at this. On Sun, Nov 27, 2016 at 8:22 AM, Kochba, Alon <[email protected]<mailto:[email protected]>> wrote: Hey guys, We encountered a possibly critical bug in openflowplugin a few weeks back. Tried reaching out to openflowplugin-dev multiple times but no answer since the first one - Anil/Sam could you assist? It seems to be easily reproducible and causes a critical (if not blocker) state on the OVS where new ports cannot be created. I raised the bug severity to critical, was hoping to get confirmation from openflowplugin first but maybe this is the way. thanks, --alon From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Kochba, Alon Sent: Tuesday, 22 November 2016 20:30 To: Aizer, Koby <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> Cc: [email protected]<mailto:[email protected]>; Sokolover, Dotan <[email protected]<mailto:[email protected]>> Subject: Re: [openflowplugin-dev] Error processing port status message Bumping this, Shuva or others could we get your inputs please? If confirmed this seems like a critical bug. Thanks! --alon From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Aizer, Koby Sent: Wednesday, 16 November 2016 18:29 To: [email protected]<mailto:[email protected]> Cc: [email protected]<mailto:[email protected]>; Sokolover, Dotan <[email protected]<mailto:[email protected]>> Subject: [openflowplugin-dev] Error processing port status message Hi Shuva, (Sorry for creating a new thread, but I was somehow missing the original thread [1] in my mail client) We are hitting bug [2] when using netvirt on Boron SR2. This usually happens when creating/deleting a large number of VMs. Dotan has added to the bug description a small script that eventually reproduces it, and he did it while TransactionChainManager’s debug level is increased. We didn’t see any DEBUG messages from that class (there were several ERROR/WARNs though – added the relevant section of the log to the bug). Please let us know if we can do anything else in order to help getting this fixed, as it seem quite critical for us (once this issue occurs it persists and no more port updates are received from the switch). Thanks, Koby [1] https://lists.opendaylight.org/pipermail/openflowplugin-dev/2016-October/006155.html [2] https://bugs.opendaylight.org/show_bug.cgi?id=6908
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