[SPARK-51378][CORE] Apply JsonProtocol's accumulableExcludeList to ExecutorMetricsUpdate and TaskEndReason #50141
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What changes were proposed in this pull request?
This PR updates
JsonProtocol
so that itsaccumulableExcludeList
is considered when logging accumulable in TaskEndReasons and ExecutorMetricUpdate events.This exclusion list was originally added in #17412 and originally only applied to StageInfo and TaskInfo logging.
Why are the changes needed?
Reduce event log size and improve event logger throughput by avoiding the need to process possibly large / expensive accumulators.
This gap for ExecutorMetricsUpdate was noted in a comment (#17412 (comment)); I recently rediscovered it in my own Spark usage.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing unit tests.
Was this patch authored or co-authored using generative AI tooling?
No.