Hi George, do you experience these problems with 22.03 version? If yes, you may want try patch by Ilya [1], which is a part of 23.09 release. Shortly, there was a problem where a new datapath in OVN caused a full re-create of datapath_groups, which results in a huge ovsdb transaction.
1: https://github.com/ovn-org/ovn/commit/2a57b204459612a9a4edb49b9c5ebc44e101ee93 > On 28 Mar 2024, at 16:24, Шагов Георгий via discuss > <ovs-discuss@openvswitch.org> wrote: > > Hello everyone > > In our setup (*) we have encountered a problem with NorthD consuming 100% CPU > Looking into transaction log of SBDB it was found that some transactions from > NorthD take almost 2Mb in Json; these are not exception, rather regular > Looking deeply into the transaction we have encountered Huge Logical_DP_Group > Record, > More in details: 2Mb Json SBDB Transaction Record was parsed by json_pp to > json file, that takes 157K Lines, from which 152K Lines – Logical_DP_Group > That Logical_DP_Group record contains of 10 Groups into it. Approx 4K dp per > every group > > Googling for a similar case I have found one, that looked close to our: > (link1) – this is not our case – we checked that > Unfortunately, the basic information regarding Logical DB Groups is well > documented into the code of NorthD > > Any clue/help/questions are extremely appreciated > > (*) Setup: > - OVN 22.03.3 – we are in process of migrating to 24.03 > - OVS 2.17.7 – the same for 3.3 > - Routers – approx. 5K > > (link1): > https://github.com/ovn-org/ovn/commit/db4cb7098c890e974175d4d05dd70dc409fad91e > > Yours truly, George > > УВЕДОМЛЕНИЕ О КОНФИДЕНЦИАЛЬНОСТИ: Это электронное сообщение и любые > документы, приложенные к нему, содержат конфиденциальную информацию. > Настоящим уведомляем Вас о том, что если это сообщение не предназначено Вам, > использование, копирование, распространение информации, содержащейся в > настоящем сообщении, а также осуществление любых действий на основе этой > информации, строго запрещено. Если Вы получили это сообщение по ошибке, > пожалуйста, сообщите об этом отправителю по электронной почте и удалите это > сообщение. > CONFIDENTIALITY NOTICE: This email and any files attached to it are > confidential. If you are not the intended recipient you are notified that > using, copying, distributing or taking any action in reliance on the contents > of this information is strictly prohibited. If you have received this email > in error please notify the sender and delete this email. > _______________________________________________ > discuss mailing list > disc...@openvswitch.org <mailto:disc...@openvswitch.org> > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss Regards, Vladislav Odintsov
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