thejdeep opened a new pull request #34000:
URL: https://github.com/apache/spark/pull/34000
### What changes were proposed in this pull request?
This adds the following push based shuffle metrics like :
- Merger count and magnet enabled/disabled for stage
- Time spent on results finalization
- Counting actual number of blocks other than chunks
- Corrupt shuffle blocks chunks and fallback
### Why are the changes needed?
These changes help to understand the push based shuffle metrics of the
application
### Does this PR introduce _any_ user-facing change?
Changes to API responses by SHS (eg: /stages)
### How was this patch tested?
Modified existing unit tests and also tested API response on event log files
in SHS
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