[jira] [Created] (KAFKA-6166) Streams configuration requires consumer. and producer. in order to be read

["Justin Manchester (JIRA)" <ji...@apache.org>]

Justin Manchester created KAFKA-6166:
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             Summary: Streams configuration requires consumer. and producer. in order to be read
                 Key: KAFKA-6166
                 URL: https://issues.apache.org/jira/browse/KAFKA-6166
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 0.11.0.0
         Environment: Kafka 0.11.0.0
JDK 1.8
CoreOS
            Reporter: Justin Manchester
            Priority: Minor


Problem:

In previous release you could specify a custom metrics reporter like so:

Properties config = new Properties(); 
config.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, "kafka-broker1:9092"); 
config.put(StreamsConfig.METRIC_REPORTER_CLASSES_CONFIG, "com.mycompany.MetricReporter"); 
config.put("custom-key-for-metric-reporter", "value");

From 0.11.0.0 onwards this is no longer possible, as you have to specify consumer.custom-key-for-metric-reporter or producer.custom-key-for-metric-reporter otherwise it's stripped out of the configuration.

So, if you wish to use a metrics reporter and to collect producer and consumer metrics, as well as kafka-streams metrics, that you would need to specify 3 distinct configs:

1) consumer.custom-key-for-metric-reporter 
2) producer.custom-key-for-metric-reporter 
3) custom-key-for-metric-reporter

This appears to be a regression.



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