[SAMZA-2176] Ignore the configurations with serialized null values from coordinator stream.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2
• Assignee: Shanthoosh Venkataraman
• Reporter: Shanthoosh Venkataraman
• Created: 26/Apr/19 02:29
• Updated: 11/Jun/19 22:09
• Resolved: 11/Jun/19 22:09

Description

Samza stores the metadata of the job into a log-compacted kafka topic called coordinator stream.

Due to some operational issue, we converted serialized null value into bytes and stored them as values for some keys in the coordinator stream. These keys will not be log-compacted by kafka, since they're not actually null messages. 

As a part of JIRA, we propose to ignore these configurations with serialized-null values and hold keys only with non-null values from coordinator-stream in ApplicationMaster.

Issue Links

• links to: GitHub Pull Request #1010