Github user tgravescs commented on the pull request:
https://github.com/apache/spark/pull/10728#issuecomment-171085753
thanks for picking this up so quickly.
I need to look at this a bit further, so I assume the other end modifying
the listener.storageStatusList is also synchronized?
One concern I have here is that I don't want to affect application
performance just because someone is viewing the UI. If the UI load blocks the
application from running, that is bad. I would rather see us get a read only
copy of it or something then synchronize.
I'll try to look in more detail tomorrow.
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