Github user mridulm commented on the issue:
https://github.com/apache/spark/pull/15249
@squito Re:(a)
The earlier behavior was used fairly extensively in various properties at
yahoo (web search, groups, bigml, image search, etc). It was added for a
specific failure mode which used to happen quite commonly for larger jobs.
It was not documented so that it can be replaced with a more principled and
general approach which subsumes it. Once current pr is merged, the ability to
run those (and similar) jobs will get affected.
Re: (b)
I looked at yarn's bad disk detection - and if I am not wrong, it is
limited to checking for ability to create task directories at launch time ? If
yes, that might not be sufficient for our needs - and is a good reason to keep
your current logic in place and not make it only node level.
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