Todd Lipcon has posted comments on this change.

Change subject: [tests] fix test which fails with two cpus and document other 
dependencies
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Patch Set 5:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/4446/5/docs/installation.adoc
File docs/installation.adoc:

Line 56:     - Limits nproc and nofile greater than 32768
> I didn't hit nproc, I hit nofile. However, given the low default settings f
Well, looking at a server I'm running which has 406 tablets running, it's using 
1036 threads. So, to cross 32k threads you'd probably need 10,000+ tablets, and 
a lot of other stuff would break first.

As an operator I'd probably recommend a lower nproc ulimit than 65536, because 
if you set it that high, then a runaway loop which is leaking threads in one 
process could easily use all the pids on a system and prevent other unrelated 
processes from starting threads (whereas I'd prefer just Kudu to crash)


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Gerrit-MessageType: comment
Gerrit-Change-Id: I81b70f63923078d449f6541a61b292517e49877d
Gerrit-PatchSet: 5
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Brock Noland <br...@phdata.io>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Brock Noland <br...@phdata.io>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Will Berkeley <wdberke...@gmail.com>
Gerrit-HasComments: Yes

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