dcos-se | A toolkit of useful DC/OS Examples and Demos | Job Orchestrator library
kandi X-RAY | dcos-se Summary
kandi X-RAY | dcos-se Summary
A toolkit of useful DC/OS Examples and Demos
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QUESTION
I installed Kafka on DC/OS (Mesos) cluster on AWS. Enabled three brokers and created a topic called "topic1".
...ANSWER
Answered 2017-Feb-28 at 05:06As it turns out, kafkaConsumer.subscribe(Arrays.asList("topic1"));
is causing poll()
to hang. According to Kafka Consumer does not receive messages
, there are two ways to connect to a topic, assign
and subscribe
. After I replaced subscribe
with the lines below, it started working.
QUESTION
I implemented in java a spark streaming job following the instructions at https://spark.apache.org/docs/2.1.0/streaming-kafka-0-10-integration.html. It works perfectly when Kafka and Cassandra servers are standalone. Extract of logs
...ANSWER
Answered 2018-Feb-14 at 10:54Problem was connectivity one. Spark job was not able to connect to Kafka using the VIP endpoint provided by DC/OS but the logs didn't throw any exception as a someone new in these technologies would expect.
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