Rayman created SAMZA-2416:
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Summary: Adding null-check before incrementing metrics for
bytesSerialized
Key: SAMZA-2416
URL: https://issues.apache.org/jira/browse/SAMZA-2416
Project: Samza
Issue Type: Improvement
Reporter: Rayman
Adding null-check before incrementing metrics for bytesSerialized
Symptom: User serde-serialization logic can choose to serialize non-null
objects to a null, which implies delete the value. In this case, current code
tries to increment the metrics using the size of the null and fails with an NPE.
Cause: Current code tries to increment the bytesSerialized metrics using the
size of the null and fails with an NPE.
Fix: Added logic to skip metric value update if serde returns null.
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