Hi,
Sometime back i was informed on the group that in production we should
never run kafka on same physical machine. So based on that I have a
question on how to divide the server nodes we have to run zookeper and
kafka brokers.
I have a following setup
Data center 1
Lan 1 (3 VMs)
192.168.xx.yy1
Hello all,
I'm not sure how to do the following use-case, if anyone can help :)
- I have an admin UI where the admin can choose wich item are allowed on
the application
- When the admin choose an item, it pushes an object to a topic kafka :
test.admin.item with the following object
Ran into these two internal exceptions today. Likely they are known or my
fault but I'm reporting them anyway:
Exception in thread "StreamThread-1" java.lang.NullPointerException
at
org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:304)
at
Kafka doesn't have the concept of message headers like some other messaging
systems.
You will have to create a payload that contains these headers and whatever
bytes you are sending.
Dave
> On Nov 28, 2016, at 16:47, Prasad Dls wrote:
>
> Hi,
>
> While publishing each
HI! WAIT YOUR ANSWER
I just cloned 3.1x and tried to run a test. I am still seeing rocksdb error:
Exception in thread "StreamThread-1" java.lang.UnsatisfiedLinkError:
C:\Users\manchlia\AppData\Local\Temp\librocksdbjni108789031344273.dll:
Can't find dependent libraries
On Mon, Oct 24, 2016 at 11:26 AM, Matthias
Hi,
I am using Kafka Connect Sink Connector to consume messages from a Kafka
topic in a secure Kafka cluster. I have provided the group.id in
connect-distributed.properties. I am using security.protocol as
SASL_PLAINTEXT.
Here is definition of group id in connect-distributed.properties -
Hi,
I am using Kafka Connect Sink Connector to consume messages from a Kafka
topic in a secure Kafka cluster. I have provided the group.id in
connect-distributed.properties. I am using security.protocol as
SASL_PLAINTEXT.
Here is definition of group id in connect-distributed.properties -
I'll write an update on where I am now.
I've got about 40 'primary' topics, some small, some up to about 10M
messages,
and about 30 internal topics, divided over 6 stream instances, all running
in a single
app, talking to a 3 node Kafka cluster.
I use a single thread per stream instance, as my
Hey Kafka Community,
I'm trying to take a pulse on the current state of the Kafka clients ecosystem.
Which languages are most popular in our community? What does the
community value in clients?
You can help me out by filling in the survey:
https://goo.gl/forms/cZg1CJyf1PuqivTg2
I will lock the
Hi,
While publishing each message (single message) to Kafka, I need to add
below headers/key
ID: 123456
TYPE: xyz
EVENTE: A
OPERATION: Insert
createTimeStampt: 2016-11-24T19:41:23.354Z
updatedTimeStamp: 2016-11-30T19:41:23.354Z
Please help me on this, how can i add all these into single
Hamid,
would you mind creating a Jira? Thanks.
-Matthias
On 11/28/16 9:36 AM, Guozhang Wang wrote:
> Damian, Hamid:
>
> I looked at the source code and suspect that it is because of the
> auto-repartitioning which causes the topology to not directly forward the
> record to the child
There has been plenty of changes in the GroupCoordinator and co between
these two releases:
https://github.com/apache/kafka/commit/40b1dd3f495a59abef8a0cba5450526994c92c04#diff-96e4cf31cd54def6b2fb3f7a118c1db3
It might be related to this:
Hi,
It seems that consumer group rebalance is broken in Kafka 0.10.1.0 ?
When running a small test-project :
- consumers running in own JVM (with different 'client.id')
- producer running in own JVM
- kafka broker : the embedded kafka : KafkaServerStartable
It looks like the consumers loose
Hello Frank,
How many instances do you have in your apps and how many threads did you
use per thread? Note that besides the topology complexity (i.e. number of
state stores, number of internal topics etc) the (re-)initialization
process is depending on the underlying consumer's membership
Yes we are considering to differentiate "process" and "punctuate" function
to be "data-driven" and "time-driven" computations. That is, triggering of
punctuate should NOT be depending on the arrival of messages, or the
message's associated timestamps.
As for now I think periodically inserting the
(caveat - was having this issue with 0.10.0 but thought an update might
help)
App has a simple layout: consume -> aggregate -> output to 2nd topic
Starting the app I see pages of this sort of message:
DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid:
0xb58abf2daaf0002
Thank you, Guozhang.
I see a lot of this exception:
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator::Offset commit
failed. : TimeoutException: The request timed out. We are committing the offset
manually by Asynch mode and session.timeout.ms is 5 mins and poll time 10 secs
and
Sachin,
This is indeed a bit wired, and we'd like to try to re-produce your issue
locally. Do you have a sample input data for us to try out?
Guozhang
On Fri, Nov 25, 2016 at 10:12 PM, Sachin Mittal wrote:
> Hi,
> I fixed that sorted set issue but I am facing a weird
Thanks All.
On Mon, Nov 28, 2016 at 3:09 AM, Michael Noll wrote:
> There are also some examples/demo applications at
> https://github.com/confluentinc/examples that demonstrate the use of
> interactive queries:
>
> -
> https://github.com/confluentinc/examples/blob/3.
>
I can’t see the code, I think it’s not added to the email?
Thanks
Eno
From: Hamza HACHANI
Reply-To:
Date: Monday, 28 November 2016 at 13:25
To: "users@kafka.apache.org"
Subject: RE: Abnormal working in the method
Thanks Martin, I will look at those links.
But you seem to be 100% confident that the problem is with ZooKeeper...can I
ask why? What is it about my problem description that makes you think this is
an issue with ZooKeeper?
From: Martin Gainty
the print is in line 40 of the class Base...
De : Hamza HACHANI
Envoyé : lundi 28 novembre 2016 01:25:08
À : users@kafka.apache.org
Objet : RE: Abnormal working in the method punctuate and error linked to
seesion.timeout.ms
Hi Eno,
Hi Eno,
Here is the code for the application ExclusiveStatsConnectionDevice which is
composed of 4 nodes.
For example when i put print("") you would sess the problem of the
infinite loop.
I preferred to send the whole code sto make it easier to you even though you
don't need all of it
Hi Hamza,
Would you be willing to share some of your code so we can have a look?
Thanks
Eno
> On 28 Nov 2016, at 12:58, Hamza HACHANI wrote:
>
> Hi Eno.
>
> The problem is that there is no infinite while loop that i write.
>
> So I can't understand why the
Hi Eno.
The problem is that there is no infinite while loop that i write.
So I can't understand why the application is doing so.
Hamza
De : Eno Thereska
Envoyé : dimanche 27 novembre 2016 23:21:24
À : users@kafka.apache.org
Objet : Re:
Hi Hamza,
If you have an infinite while loop, that would mean the app would spend all the
time in that loop and poll() would never be called.
Eno
> On 28 Nov 2016, at 10:49, Hamza HACHANI wrote:
>
> Hi,
>
> I've some troubles with the method puctuate.In fact when
Hi,
I've some troubles with the method puctuate.In fact when i would like to print
a string in the method punctuate.
this string would be printed in an indefinitly way as if I printed (while
(true){print(string)}.
I can't understand what happened.Does any body has an explenation ?.
Besides
Hi Vladi,
Generally, newer brokers are compatible with older clients. As Vladimir
said, the upgrade page (http://kafka.apache.org/documentation.html#upgrade)
includes detailed information about changes that could have a compatibility
impact.
Ismael
On Sun, Nov 27, 2016 at 8:09 PM, Vladi Feigin
There are also some examples/demo applications at
https://github.com/confluentinc/examples that demonstrate the use of
interactive queries:
-
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