Hello Ara,

I would love to learn if your rebalance issue mentioned in KAFKA-4392 still
exists, since I think what you observed maybe a combination of various
issues as we discussed offline, which could be related to KIP-62 as well.
Let me know and I'd love to help investigate further.


Guozhang

On Wed, Nov 16, 2016 at 6:25 PM, Ara Ebrahimi <ara.ebrah...@argyledata.com>
wrote:

> This indeed was the issue and cp2 did fix it! Thank you!
>
> Ara.
>
> > On Nov 16, 2016, at 4:11 PM, Damian Guy <damian....@gmail.com> wrote:
> >
> > Hi Ara,
> >
> > Are you running Kafka Streams v0.10.1? If so, there is a resource leak in
> > the window store. See: https://github.com/apache/kafka/pull/2122
> > You can either try checking out the Apache Kafka 0.10.1 branch (which has
> > the fix) and building it manually, or you can try using the latest
> > confluent packaged version of the library, which you can get from
> > confluents maven repository:
> >
> > <repositories>
> >    <repository>
> >        <id>confluent</id>
> >        <url>http://packages.confluent.io/maven/</url>
> >    </repository></repositories>
> >
> > <dependency>
> >    <groupId>org.apache.kafka</groupId>
> >    <artifactId>kafka-streams</artifactId>
> >    <version>0.10.1.0-cp2</version></dependency><dependency>
> >    <groupId>org.apache.kafka</groupId>
> >    <artifactId>kafka-clients</artifactId>
> >    <version>0.10.1.0-cp2</version></dependency>
> >
> > Thanks,
> >
> > Damian
> >
> >
> > On Wed, 16 Nov 2016 at 14:52 Ara Ebrahimi <ara.ebrah...@argyledata.com>
> > wrote:
> >
> >> Hi,
> >>
> >> I have a few KTables in my application. Some of them have unlimited
> >> windows. If I leave the application to run for a few hours, I see the
> java
> >> process consume more and more memory, way above the -Xmx limit. I
> >> understand this is due to the rocksdb native lib used by kafka streams.
> >> What I don’t understand is how I can control how much rocksdb data
> should
> >> be kept in memory. I know I can use the RocksDBConfigSetter class, but I
> >> need more information on why this unbounded memory allocation happens
> and
> >> how to tune it.
> >>
> >> Thanks,
> >> Ara.
> >>
> >>
> >>
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>
>
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-- 
-- Guozhang

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