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From "Philip Zeyliger (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-4704: Disallow client connections to imapalad until catalog is received.
Date Wed, 04 Oct 2017 16:29:40 GMT
Philip Zeyliger has posted comments on this change. ( http://gerrit.cloudera.org:8080/8202
)

Change subject: IMPALA-4704: Disallow client connections to imapalad until catalog is received.
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/8202/1//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/8202/1//COMMIT_MSG@17
PS1, Line 17: this wait time bound, the impalad exits.
Because it's hard to time the start-up of processes on multiple machines, short timeouts like
this one (it's 10 seconds, if I'm reading correctly) can cause issues. Most Hadoop-related
distributed systems (but not all) wait forever or ~hours before they decide to give up.

I'm also under the impression that really large catalogs can take a long time to start-up.
Do you know if that would trigger?

All that said, I'm simply arguing that it's reasonable to make the number of retries infinite
here.

I look forward to what others will add!



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I52b881cba18a7e4533e21a78751c2e35c3d4c8a6
Gerrit-Change-Number: 8202
Gerrit-PatchSet: 1
Gerrit-Owner: Vuk Ercegovac <vercegovac@cloudera.com>
Gerrit-Reviewer: Philip Zeyliger <philip@cloudera.com>
Gerrit-Comment-Date: Wed, 04 Oct 2017 16:29:40 +0000
Gerrit-HasComments: Yes

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