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From Debraj Manna <subharaj.ma...@gmail.com>
Subject Re: Running apache samza with Kafka Client 1.0 - JIRA - SAMZA - 1418
Date Wed, 29 Nov 2017 16:45:12 GMT
Hi

Hi

I am trying to upgrade a single node kafka broker to latest 1.0 from 0.10
with samza 0.13.1.

The steps followed


   1. Stopped Kafka Broker
   2. Replaced bin/, libs & site-docs/ with the latest
   3. Started Kafka

But I am seeing the below exception in logs - Is this related to the that
is being discussed here?

017-11-29 16:21:36.591 [main-EventThread] ClientCnxn [INFO] EventThread
shut down
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/kafka/common/errors/TopicExistsException
        at org.apache.samza.system.kafka.KafkaSystemAdmin$$anonfun$
createStream$2.apply(KafkaSystemAdmin.scala:442)
        at org.apache.samza.system.kafka.KafkaSystemAdmin$$anonfun$
createStream$2.apply(KafkaSystemAdmin.scala:440)
        at org.apache.samza.util.ExponentialSleepStrategy.run(
ExponentialSleepStrategy.scala:81)
        at org.apache.samza.system.kafka.KafkaSystemAdmin.createStream(
KafkaSystemAdmin.scala:422)
        at org.apache.samza.system.kafka.KafkaSystemAdmin.
createCoordinatorStream(KafkaSystemAdmin.scala:337)
        at org.apache.samza.job.JobRunner.run(JobRunner.scala:88)
        at org.apache.samza.job.JobRunner$.doOperation(JobRunner.scala:52)
        at org.apache.samza.job.JobRunner$.main(JobRunner.scala:47)
        at org.apache.samza.job.JobRunner.main(JobRunner.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.kafka.common.
errors.TopicExistsException
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 9 more

On Mon, Nov 27, 2017 at 1:29 PM, Yi Pan <nickpan47@gmail.com> wrote:

> Hi, Debraj,
>
> Makes sense. I have opened a ticket to upgrade Samza's Kafka client
> libraries to 0.11 (SAMZA-1509). If you have concerns/suggestions, please
> add comments to that ticket.
>
> Thanks!
>
> -Yi
>
> On Wed, Nov 22, 2017 at 10:04 AM, Debraj Manna <subharaj.manna@gmail.com>
> wrote:
>
> > Since we were moving our brokers to 1.0 so was trying to have the same
> > client version.
> >
> > Sent from GMail on Android
> >
> > On Nov 22, 2017 11:32 PM, "Yi Pan" <nickpan47@gmail.com> wrote:
> >
> > > And just one more question on your requirement for Kafka Client 1.0: is
> > > this requirement because of your broker version is Kafka 1.0? Or you
> want
> > > some client side features from Kafka client 1.0?
> > >
> > > Just talked to our in-house Kafka expert and confirmed that Kafka
> client
> > > 0.10.1 should be able to talk to higher version of Kafka broker,
> > including
> > > 1.0, if the concern is on client/broker compatibility.
> > >
> > > -Yi
> > >
> > > On Wed, Nov 22, 2017 at 9:52 AM, Yi Pan <nickpan47@gmail.com> wrote:
> > >
> > > > Hi, Debraj,
> > > >
> > > > First, yes, this is the correct forum for user questions as well.
> > > >
> > > > Second, we are actively working on a patch to bring in Kafka 0.11
> > client
> > > > in Samza. It would require a lot of testing on Samza side to make
> sure:
> > > 1)
> > > > back-compat w/ older version of brokers; 2) performance test. We
> > already
> > > > have a PR to include Kafka 0.11 under review.
> > > >
> > > > Thanks!
> > > >
> > > > -Yi
> > > >
> > > > On Wed, Nov 22, 2017 at 6:04 AM, Debraj Manna <
> > subharaj.manna@gmail.com>
> > > > wrote:
> > > >
> > > >> Hi
> > > >>
> > > >>
> > > >> I am facing the same below issue when trying to use kafka client 1.0
> > > with
> > > >> samza
> > > >>
> > > >> https://issues.apache.org/jira/browse/SAMZA-1418
> > > >>
> > > >> I could not find any related ticket with a fix.
> > > >>
> > > >> How are we supposed to run apache samza with the latest Kafka Client
> > > 1.0?
> > > >> It looks like I have to use kafka-clients-0.11.0.0.jar .
> > > >>
> > > >> *Versions*
> > > >> Kafka Broker / Cluster - 1.0
> > > >> samza-api-0.13.0.jar
> > > >> samza-core_2.11-0.13.0.jar
> > > >> samza-kafka_2.11-0.13.0.jar
> > > >> samza-kv_2.11-0.13.0.jar
> > > >> samza-yarn_2.11-0.13.0.jar
> > > >>
> > > >>
> > > >> *PS - I could not find any users mailing list for samza in mailing
> > list
> > > >> <http://samza.apache.org/community/mailing-lists.html> page.
If
> this
> > is
> > > >> not
> > > >> the right forum to ask this query. Can you please point me to the
> > > correct
> > > >> forum?*
> > > >>
> > > >
> > > >
> > >
> >
>

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