Thanks for the update Steve!

Mukund: could you please share the command to get the error above? I tried
a few approaches but couldn't reproduce it :(

Thanks again!

Best,
Chao

On Mon, Jan 24, 2022 at 7:16 AM Steve Loughran <ste...@cloudera.com> wrote:

>
> fix is in t disable auditing, which is now the default
> https://issues.apache.org/jira/browse/HADOOP-18094
>
> everything is OK for apps which retain the same fs instances for the life
> of the app, but not for Hive...
>
> will do a better fix ASAP where in exchange for loss of auditing after a
> GC event, only weak refs are held in maps private to the auditor.
>
> i will put that in hadoop common as i would want to use the same code in
> thread-levek IOStatistics tracking.
> there we;d demand create an IOStatistics snapshot per thread,  short lived
> worker threads for stream io would still update the stats of the thread the
> stream was created in. this will let lus collect stats on store io through
> the orc/paquet readers for each thread doing work for a job, and include
> them in job stats.
>
> and how would that be useful? well. look at this coimparison of job/task
> commit performance with the manifest committer
> https://gist.github.com/steveloughran/7dc1e68220db67327b781b345b42c0b8
>

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