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From Ilya Kasnacheev <ilya.kasnach...@gmail.com>
Subject Re: When Cache Metrics are switched on (statisticsEnabled = true) the empty cache events arrive to the client nodes
Date Mon, 16 Dec 2019 16:36:12 GMT
Hello!

Is there a chance you are using Zk?

I believe it's https://issues.apache.org/jira/browse/IGNITE-6564

Regards,
-- 
Ilya Kasnacheev


пт, 13 дек. 2019 г. в 12:24, <Roman.Koriakov@t-systems.com>:

> Hi Community,
>
> I’d like to ask you about the following behavior of Apache Ignite:
>
>
> If we want to react on some PUT or READ cache operations first of all we
> need to turn on the appropriate cache events on the server node and catch
> those events on the client nodes using remote approach with two listeners.
> It works well until we switch on statisticsEnabled on the server node, it
> will lead to the situation when we get empty CacheEvent objects.
>
> The example that demonstrates this issue is in the attachments. This
> example is consists of three nodes:  1 server node with cache and 2
> clients.  One client is filling the cache and the second one is listening
> PUT operations. When we turn on Cache Metrics on the server node:
> cacheConfig.setStatisticsEnabled(true); in EventServerCache.java we get
> empty events (Sometimes CacheEvent objects with null fields. Sometimes
> there are no events at all)
>
> My suppose is there is some Exception in GridCacheEventManager.addEvent()
> when Cache Metrics is turned on.
>
> catch (Exception e) {
>   if
> (!cctx.cacheObjectContext().kernalContext().cacheObjects().isBinaryEnabled(cctx.config()))
>     throw e;  if (log.isDebugEnabled())
>      log.debug("Failed to unmarshall cache object value for the event
> notification: " + e);
>
>   if (!forceKeepBinary)
>     LT.warn(log, "Failed to unmarshall cache object value for the event
> notification " +
>              "(all further notifications will keep binary object
> format).");
>
>   forceKeepBinary = true;
>
>   key0 = cctx.cacheObjectContext().unwrapBinaryIfNeeded(key, true, false);
>
>   val0 = cctx.cacheObjectContext().unwrapBinaryIfNeeded(newVal, true,
> false);
>
>   oldVal0 = cctx.cacheObjectContext().unwrapBinaryIfNeeded(oldVal, true,
> false);
>
> }
>
> Can public this point in JIRA?
>
> Best regards,
>
> T-Systems RUS
> Point of Production
> Roman Koriakov
> Software Developer
> Kirova 11, Voronezh, Russia
> Tel: + 7 473 200 15 30
> E-mail: Roman.Koriakov@t-systems.com<mailto:Roman.Koriakov@t-systems.com>
> http://www.t-systems.com<http://www.t-systems.ru/>
>
>
>
> -----Original Message-----
> From: Ilya Kasnacheev <ilya.kasnacheev@gmail.com>
> Sent: Thursday, December 12, 2019 6:35 PM
> To: dev <dev@ignite.apache.org>
> Subject: Re: joining
>
>
>
> Hello!
>
>
>
> You will need to register on https://issues.apache.org/jira/ first.
>
>
>
> Please tell me when you do.
>
>
>
> Regards,
>
> --
>
> Ilya Kasnacheev
>
>
>
>
>
> чт, 12 дек. 2019 г. в 18:09, <Roman.Koriakov@t-systems.com<mailto:
> Roman.Koriakov@t-systems.com>>:
>
>
>
> > Hi Ilya,
>
> >
>
> > it’d be nice if it were rkoriakov
>
> >
>
> >
>
> >
>
> > Best regards,
>
> >
>
> > T-Systems RUS
>
> > Point of Production
>
> > Roman Koriakov
>
> > Software Developer
>
> > Kirova 11, Voronezh, Russia
>
> > Tel: + 7 473 200 15 30
>
> > E-mail: Roman.Koriakov@t-systems.com<mailto:Roman.Koriakov@t-systems.com
> <mailto:Roman.Koriakov@t-systems.com%3cmailto:Roman.Koriakov@t-systems.com
> >>
>
> > http://www.t-systems.com<http://www.t-systems.ru/<
> http://www.t-systems.com%3chttp:/www.t-systems.ru/>>
>
> >
>
> >
>
> >
>
> > -----Original Message-----
>
> > From: Ilya Kasnacheev <ilya.kasnacheev@gmail.com<mailto:
> ilya.kasnacheev@gmail.com>>
>
> > Sent: Thursday, December 12, 2019 5:25 PM
>
> > To: dev <dev@ignite.apache.org<mailto:dev@ignite.apache.org>>
>
> > Subject: Re: joining
>
> >
>
> >
>
> >
>
> > Hello!
>
> >
>
> >
>
> >
>
> > I will need an Apache JIRA username to add you to contributors. Can you
>
> > provide it?
>
> >
>
> >
>
> >
>
> > Regards,
>
> >
>
> > --
>
> >
>
> > Ilya Kasnacheev
>
> >
>
> >
>
> >
>
> >
>
> >
>
> > чт, 12 дек. 2019 г. в 17:20, <Roman.Koriakov@t-systems.com<mailto:
>
> > Roman.Koriakov@t-systems.com<mailto:Roman.Koriakov@t-systems.com>>>:
>
> >
>
> >
>
> >
>
> > > Hi everyone,
>
> >
>
> > > I'd like to participate in this  project!
>
> >
>
> > >
>
> >
>
> > > Best regards,
>
> >
>
> > >
>
> >
>
> > > T-Systems RUS
>
> >
>
> > > Point of Production
>
> >
>
> > > Roman Koriakov
>
> >
>
> > > Software Developer
>
> >
>
> > > Kirova 11, Voronezh, Russia
>
> >
>
> > > Tel: + 7 473 200 15 30
>
> >
>
> > > E-mail: Roman.Koriakov@t-systems.com<mailto:
> Roman.Koriakov@t-systems.com<mailto:Roman.Koriakov@t-systems.com%
> 3cmailto:Roman.Koriakov@t-systems.com>
>
> > <mailto:Roman.Koriakov@t-systems.com%
> 3cmailto:Roman.Koriakov@t-systems.com
>
> > >>
>
> >
>
> > > http://www.t-systems.com<http://www.t-systems.ru/<<
> http://www.t-systems.com%3chttp:/www.t-systems.ru/%3c>
>
> > http://www.t-systems.com%3chttp:/www.t-systems.ru/>>
>
> >
>
> > >
>
> >
>
> > >
>
> >
>

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