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From "Sailesh Mukil (Code Review)" <ger...@cloudera.org>
Subject [Impala-CR](cdh5-trunk) IMPALA-2599: Pseudo-random sleep before acquiring kerberos ticket possibly not really pseudo-random.
Date Thu, 03 Mar 2016 03:55:32 GMT
Sailesh Mukil has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2429

Change subject: IMPALA-2599: Pseudo-random sleep before acquiring kerberos ticket possibly
not really pseudo-random.
......................................................................

IMPALA-2599: Pseudo-random sleep before acquiring kerberos ticket possibly not really pseudo-random.

A pseudo-random number generator was used to add a sleep before
acquiring a kerberos ticket so that there is minimal traffic to the
KDC. This generator was not seeded which resulted in every impalad
waking up at the same time to contact the KDC for a ticket.

This change seeds the generator with a std::random_device so that
different impalads have different sleep times.

Change-Id: I727a1b68aca43546bb79603b0ca83163ee169aa9
---
M be/src/rpc/authentication.cc
1 file changed, 2 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/29/2429/1
-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I727a1b68aca43546bb79603b0ca83163ee169aa9
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Sailesh Mukil <sailesh@cloudera.com>

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