Quick question Jozef, do we periodically fetch the table features ? In helium design we just fetch is once only. So as far as lithium plugin fetches it once, i don;t really see any performance impact as such (except switch connection time data processing).
On Wed, Aug 3, 2016 at 12:02 AM, Jozef Bacigál <[email protected]> wrote: > Hi guys, > > > > Sorry I wasn’t here for two days, but first thing the patch seems good. > Second thing I see no problem when the table features stay switched ON. > Before the changes the table features were inside the tables and with each > table we always loaded full features. Now are the features on the same > level as table so performance in boron get better. It would be nice to have > some performance test with ON/OFF table features with this patch set. > > > > Jozef > > > > *From:* Abhijit Kumbhare [mailto:[email protected]] > *Sent:* Wednesday, August 3, 2016 7:37 AM > *To:* Anil Vishnoi <[email protected]>; > [email protected] > *Cc:* Tom Pantelis <[email protected]>; Muthukumaran K < > [email protected]>; Shuva Jyoti Kar < > [email protected]>; Jozef Bacigál <[email protected]>; > Luis Gomez <[email protected]>; [email protected]; > [email protected] > > *Subject:* Re: Patch for tuning table features > > > > Yes - we should reach out to DIDM & the NIC project - but I want to also > discuss this in this week's meeting. > > > > I have added the OpenFlow Plugin mailing list - as well as DIDM & NIC - so > they can be aware of this discussion. If I remember right we had also > discussed this earlier - don't remember what we had concluded then. > > > > > > On Tue, Aug 2, 2016 at 10:31 PM, Anil Vishnoi <[email protected]> > wrote: > > > > > > On Tue, Aug 2, 2016 at 10:04 PM, Tom Pantelis <[email protected]> > wrote: > > So you have some apps that need table-features enabled but other apps that > need it off? That sounds like a deployment headache - what if an end user > has installed an app that needs it on and also an app that needs it off? > What happens to an app if the setting isn't what it needs? > > It's moreover like, some apps need it, but apps who don't need it, would > *prefer* to disable it for performance reason. So if it comes to the > situation where one app need table features, then other app will have to > live with it. > > But yes, it's still an deployment options, and we were thinking an easy > way for doing that. > > > > > > Regardless, this seems like a deployment option for the end user or > integrator, ie let the user decide what to set it to rather than apps > trying to set it automatically on install and possibly stomping over one > another. So if a user installs DIDM, document that they must enable > table-features. > > This is also reasonable option, but not sure if didm and nic projects are > okay with it or not. This might add some work on their plate to fix their > intergration/csit jobs etc. > > > > Abhijit, do you think it make sense to reach out to DIDM/NIC project? > > > > On Wed, Aug 3, 2016 at 12:29 AM, Muthukumaran K < > [email protected]> wrote: > > So, assuming that a set of projects require default-value for a config > param (table-features in this case) to be true, they would have use what > comes out of box (assuming that XML what we ship via features.xml sets the > value to true). > > Then another set of projects want to flip – they stop the whole karaf > container, edit this XML and restart. Or they can edit the XML file on fly ? > > > > Clarity of this sequence may be useful for how test automation runs CSIT – > a set of Test suites which require the value to be true (in this example, > DIDM, NIC) and another set of test suites which require this value to be > false (everything else other than NIC or DIDM) > > > > Regards > > Muthu > > > > > > *From:* Tom Pantelis [mailto:[email protected]] > *Sent:* Wednesday, August 03, 2016 9:46 AM > *To:* Anil Vishnoi > *Cc:* Abhijit Kumbhare; Shuva Jyoti Kar; [email protected]; > Muthukumaran K > > > *Subject:* Re: Patch for tuning table features > > > > If using clustered-app-config, the default value can be set via an > external XML file that could be shipped via a features.xml. See > https://wiki.opendaylight.org/view/Using_Blueprint#Using_the_Datastore > > > > On Tue, Aug 2, 2016 at 6:08 PM, Anil Vishnoi <[email protected]> > wrote: > > I think two project had dependent (DIDM and NIC) on the table > features. So if plugin will disable it now, both the project will > break. So if we want to disable table features, we need to provide > some solution on how these project can enable it. > > Given that all the config nobs are present in data store, didm/nic > project can overwrite the default value to false, but that will > restart the openflowplugin model, which i think should be fine. > > Tom, do you have any other thoughts on how projects can set value of > config nob exposed by dependent projects? > > On Tue, Aug 2, 2016 at 2:25 PM, Abhijit Kumbhare <[email protected]> > wrote: > > Added Jozef. Since it is Jozef's patch and you are now a committer - you > can > > review/merge it :) > > > > On Mon, Aug 1, 2016 at 11:57 PM, Shuva Jyoti Kar > > <[email protected]> wrote: > >> > >> Sure, sounds good. Can you please review the patch and merge it then ? > >> > >> > >> > >> Thanks > >> > >> Shuva > >> > >> > >> > >> From: Abhijit Kumbhare [mailto:[email protected]] > >> Sent: Tuesday, August 02, 2016 12:25 PM > >> > >> > >> To: Shuva Jyoti Kar > >> Cc: Muthukumaran K; Anil Vishnoi > >> Subject: Re: Patch for tuning table features > >> > >> > >> > >> We should ask DIDM to turn it on if and when they need it. > >> > >> On Monday, August 1, 2016, Shuva Jyoti Kar < > [email protected]> > >> wrote: > >> > >> I do see your point Abhjit. The spec says “If it wishes to understand > the > >> size, types, and order in which tables are consulted, the controller > >> > >> sends a OFPMP_TABLE_FEATURES multipart request (see A.3.5.5)”. Hence it > >> would be optional. Am I correct ? > >> > >> > >> > >> But if we turn it off by , will any projects have a problem ? I remember > >> DIDM having a dependency. > >> > >> The current status that exists for the He and Li designs are: > >> > >> > >> > >> Master > >> > >> > >> > >> He-design: turned on by default, can be turned off > >> > >> Li-design :mandatory now[my patch will make it configurable] > >> > >> > >> > >> Stable/Be > >> > >> > >> > >> He-design: turned on by default, can be turned off > >> > >> Li-design: turned off by default as per > >> https://git.opendaylight.org/gerrit/#/c/36506/4 > >> > >> > >> > >> I do see a point it making it off by default. Do let me know if I am > >> missing something > >> > >> > >> > >> Thanks > >> > >> Shuva > >> > >> > >> > >> From: Abhijit Kumbhare [mailto:[email protected]] > >> Sent: Tuesday, August 02, 2016 5:20 AM > >> To: Shuva Jyoti Kar > >> Cc: Muthukumaran K; Anil Vishnoi > >> Subject: Re: Patch for tuning table features > >> > >> > >> > >> The spec does not say that the table features HAS to be used. I think we > >> should turn it off on both the He and the Li designs to keep consistent > >> assuming it is causing enough performance problems. > >> > >> > >> > >> On Sat, Jul 30, 2016 at 7:47 PM, Shuva Jyoti Kar > >> <[email protected]> wrote: > >> > >> Absolutely Muthu ,nothing else. Aligining with the spec its been turned > on > >> but can be turned off in a manner that aligns with the implementation > on the > >> He plugin as well. > >> > >> On Sun, Jul 31, 2016 at 2:53 AM, Muthukumaran K > >> <[email protected]> wrote: > >> > >> > >> > >> It was kept on just to be in alignment with spec and also with He > plugin’s > >> config > >> > >> > >> > >> Anything else Shuva ? > >> > >> > >> > >> Regards > >> > >> Muthu > >> > >> > >> > >> > >> > >> From: Abhijit Kumbhare [mailto:[email protected]] > >> Sent: Sunday, July 31, 2016 2:52 AM > >> To: Shuva Jyoti Kar > >> Cc: Anil Vishnoi; Muthukumaran K > >> Subject: Re: Patch for tuning table features > >> > >> > >> > >> Then shouldn't it be off by default if OVS 2.4 is sending a lot of data > >> and performance suffers? > >> > >> On Saturday, July 30, 2016, Shuva Jyoti Kar < > [email protected]> > >> wrote: > >> > >> Hi Anil, Abhijit, > >> > >> > >> > >> I have pushed a patch for turning table-features ON/OFF with the > >> li-plugin. By default it is on, but can be switched off. > >> > >> > >> > >> https://git.opendaylight.org/gerrit/#/c/42821/1 > >> > >> > >> > >> We need this fix since by default ovs2.4 sends quite a huge amount of > data > >> for each switch connected. > >> > >> > >> > >> Could you please review the change and let me know your comments. > >> > >> > >> > >> Thanks > >> > >> Shuva > >> > >> > > > > > > > > -- > Thanks > Anil > > > > > > > > > > -- > > Thanks > > Anil > > > > JozefBacigál > > Software Engineer > > > Sídlo / Mlynské Nivy 56 / 821 05 Bratislava / Slovakia > R&D centrum / Janka Kráľa 9 / 974 01 Banská Bystrica / Slovakia > +421 908 766 972 / [email protected] > reception: +421 2 206 65 114 / www.pantheon.sk > > [image: logo] > > > -- Thanks Anil
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