Re: Number of partitions for offsets topic cannot be changed

2018-03-25 Thread Peter Bukowinski
Once the offsets topic has been created, changing any server.properties affecting it will have no effect. If you are pre-production, you can start over using the new server properties. By start over, I mean stopping brokers, purging the kafka logs/data directories of all brokers, purging

Re: Number of partitions for offsets topic cannot be changed

2018-03-25 Thread Anu P
Thanks Swapnil. I changed *offsets.topic.num.partitions* in server.properties file and restarted the broker. But, still this config change does not take effect. Any ideas? Thanks in advance Tanvi On Sun, Mar 25, 2018 at 12:30 AM, Swapnil Gupta wrote: > In brief, this

Re: Developing with kafka and other non jvm languages

2018-03-25 Thread Matthias J. Sax
Gary, The Apache Kafka project itself, only maintains Java clients -- thus, your are right that those are the primary and best supported clients. (Kafka used to have Scala clients, but those are all deprecated now and will be removed eventually.) Clients in other languages are not part of Apache

Kafka Mirrormaker issue

2018-03-25 Thread Siva A
Hi, We have 3 nodes Kafka cluster(0.10.0.1) and its mirroring the data from another 3 node cluster of same Kafka version. Both the clusters are Kerberized and we are running the Mirrormaker on the target cluster using the single principal/keytab with the one way trust on the KDC. At times, the

Developing with kafka and other non jvm languages

2018-03-25 Thread Gary Taylor
Hi, This is a fairly generic question but has some specifics too Ill ask the specific first - I am trying to use golang to talk to kafka and it works, but a fairly important part of my application is to subscribe to information in many topics where the topic is matched server side and will

Re: Number of partitions for offsets topic cannot be changed

2018-03-25 Thread Swapnil Gupta
In brief, this is system level configuration by Kafka. Consumer offsets partitions can't be changed through command line. You have to change the configuration file and set this *offsets.topic.num.partitions* property to change this. On Sun, Mar 25, 2018, 12:49 Anu P

Number of partitions for offsets topic cannot be changed

2018-03-25 Thread Anu P
Hi, I am trying to change the number of partitions for __consumer_offsets topic by using the following command. However, I get an error stating "Number of partitions for offsets topic cannot be changed" */opt/kafka/bin/kafka-topics.sh --zookeeper --alter --topic __consumer_offsets --partitions