Dan Hecht has posted comments on this change.

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


Patch Set 1: Code-Review+2

(1 comment)

http://gerrit.cloudera.org:8080/#/c/2429/1/be/src/rpc/authentication.cc
File be/src/rpc/authentication.cc:

Line 514:     uniform_int<> dist(0, 300);
> It would give us more randomness every time if it stays within the loop. Th
Is that true?  'generator' should generate a pseudorandom sequence from the 
seed, not just a single random value.  And since random_device may not have 
that many values (32-bit), it might give more randomness to use the sequence 
rather than re-seed.

That said, in this case either should be fine.  It just seemed a little more 
straight forward to have one generator to me.


-- 
To view, visit http://gerrit.cloudera.org:8080/2429
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-MessageType: comment
Gerrit-Change-Id: I727a1b68aca43546bb79603b0ca83163ee169aa9
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Sailesh Mukil <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Sailesh Mukil <[email protected]>
Gerrit-HasComments: Yes

Reply via email to