steveloughran commented on PR #4566:
URL: https://github.com/apache/hadoop/pull/4566#issuecomment-1185628638
Here are the stats for a magic run where we also measure list calls.
The fact that hsync is being called shows that the terasort output is also
being picked up. not intentional.
raises a big issue: should these committers reset the context before
task/job commit.
```
commit.AbstractCommitITest (AbstractCommitITest.java:printStatistics(118))
- Aggregate job statistics counters=((action_executor_acquired=7)
(committer_bytes_committed=800042)
(committer_commit_job=10)
(committer_commits_completed=14)
(committer_jobs_completed=10)
(committer_magic_marker_put=7)
(committer_materialize_file=14)
(object_list_request=17)
(object_multipart_initiated=7)
(op_hsync=6)
(stream_write_block_uploads=7)
(stream_write_bytes=400021)
(stream_write_total_data=400021));
gauges=();
minimums=((action_executor_acquired.min=0)
(committer_commit_job.min=301)
(committer_magic_marker_put.min=70)
(committer_materialize_file.min=129)
(object_list_request.min=64)
(object_multipart_initiated.min=74));
maximums=((action_executor_acquired.max=11)
(committer_commit_job.max=643)
(committer_magic_marker_put.max=127)
(committer_materialize_file.max=478)
(object_list_request.max=319)
(object_multipart_initiated.max=97));
means=((action_executor_acquired.mean=(samples=14, sum=65, mean=4.6429))
(committer_commit_job.mean=(samples=10, sum=4974, mean=497.4000))
(committer_magic_marker_put.mean=(samples=7, sum=641, mean=91.5714))
(committer_materialize_file.mean=(samples=14, sum=3171, mean=226.5000))
(object_list_request.mean=(samples=17, sum=2098, mean=123.4118))
(object_multipart_initiated.mean=(samples=7, sum=598, mean=85.4286)));
```
this is going to overreport, but i don't think the committers should be
interfering with the context which should really be managed by the app
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