Consumer is not receiving any messages

[chinastockproducts]

We are trying to use the same from code , but consumer topic is not receiving any messages on target side
export CLASSPATH=/Users/sxe518/Documents/test/MirrorMakerHandler/target/TopicSwitchingHandler-1.0-SNAPSHOT.jar
bin/kafka-mirror-maker.sh --consumer.config config/consumer.properties --producer.config config/producer.properties --whitelist test_.* —message.handler com.shapira.examples.TopicSwitchingHandler --message.handler.args ‘test,test123’
MirrorMakerHandler.zip

[Jordan Moore]

--message.handler.args ‘test,test123’

A topic name cannot contain commas. Here you have made the prefix contain them

[chinastockproducts]

Those are 2 different topic names test is from source and test123 is on consumer side.

[Jordan Moore]

I think you're misinterpreting the arguments then

public TopicSwitchingHandler(String topicPrefix) {
        this.topicPrefix = topicPrefix;
    }

Therefore, you're setting this.topicPrefix="test,test123"

[chinastockproducts]

ok so we need to use test.test123 right?

[Jordan Moore]

Depends on your goal.

If you want to rename multiple topics, look at https://github.com/opencore/mirrormaker_topic_rename

[chinastockproducts]

i followed opencore with the arguments--message.handler.args ‘test,test123’ . But i dont see topic test123 receiving messages from test. Is it any issue related to version of kafka..we are using kafka 1.1.0

[Jordan Moore]

If your source topic name is test, then your whitelist is only watching topics starting with test_, so the test topic itself is ignored...

This project is adding a prefix. The other project is completely renaming a topic. Using the format <src>,<dest>;<src2>,<dest2>

[Jordan Moore]

If you look at the example given there, you'd see their source topic does contain an underscore - test_source

--message.handler com.opencore.RenameTopicHandler --message.handler.args 'test_source,test_target'

Meanwhile, this project does not have an underscore in the topic name, and serves a different purpose

--message.handler com.shapira.examples.TopicSwitchingHandler --message.handler.args dc1 --whitelist mm1

It adds dc1 onto mm1

[Ashutosh Dwivedi]

JavaSessionize.avro.LogLinec reference unresolved in the code, kindly look into it

[Jordan Moore]

@ashuit87 No it isn't. Use mvn compile to generate it