[jira] [Created] (SAMZA-883) Improve logging for container handling and kafka refresh scenarios

["Jake Maes (JIRA)" <ji...@apache.org>]

Jake Maes created SAMZA-883:
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             Summary: Improve logging for container handling and kafka refresh scenarios
                 Key: SAMZA-883
                 URL: https://issues.apache.org/jira/browse/SAMZA-883
             Project: Samza
          Issue Type: Improvement
            Reporter: Jake Maes
            Assignee: Jake Maes


We need to improve logging in 2 areas:

Container handling:
1. There was a log message that printed the ContainerModel in Samza 9 that is missing in Samza 10. It's useful because it prints the mappings. e.g.
2016-02-25 09:34:24 SamzaAppMasterTaskManager [INFO] Claimed SSP taskNames ContainerModel [containerId=0, tasks={Partition 0=TaskModel [taskName=Partition 0, systemStreamPartitions=[SystemStreamPartition [kafka-input, UnifiedImpressionEvent, 0]], changeLogPartition=Partition [partition=10]]}] for container ID 0
2. Samza 9 also printed info logs when a new container was allocated by the RM. These logs are mostly there in Samza 10 but they're debug level. They're not overly verbose, so lets move them to info.

Kafka refresh scenarios:
The logs are currently unclear as to what code path is causing abdication in the broker proxy and the content of the topic metadata when we refresh. 



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