shanthoosh edited a comment on issue #1010: SAMZA-2176: Ignore the keys with 
serialized null values from the coordinator stream.
URL: https://github.com/apache/samza/pull/1010#issuecomment-487214833
 
 
   @cameronlee314 
   
   For non-config cases, old 1.0 logic did not do the null checks. 
   
   This whole PR was necessary because coordinator stream was corrupted with 
serialized null values for config-type keys. The same serialized-null values 
can be published to coordinator stream for any type of keys(container-host, 
task-partition) in the future.
   
   I'm adding this null-checks as a safe-guard to prevent against it. 
   
   

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