Dan Hecht has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/10314 )

Change subject: IMPALA-6970: race with decreasing scanner reservation
......................................................................


Patch Set 2: Code-Review+1

(1 comment)

http://gerrit.cloudera.org:8080/#/c/10314/2/be/src/runtime/bufferpool/buffer-pool.h
File be/src/runtime/bufferpool/buffer-pool.h:

http://gerrit.cloudera.org:8080/#/c/10314/2/be/src/runtime/bufferpool/buffer-pool.h@349
PS2, Line 349: the postcondition
             :   /// does not hold if called concurrently with a 
DecreaseReservation*() call.
> do you mean that the post-condition of "after which 'bytes' can be used" do
Maybe just delete that sentence? It seems obvious that if you do Increase and 
Decrease without some external synchronization then you may not have 'bytes' at 
the end. Or is it trying to say else?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I653225c981bf674d2b2b947f3a3cb4d8f382d36b
Gerrit-Change-Number: 10314
Gerrit-PatchSet: 2
Gerrit-Owner: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Bikramjeet Vig <bikramjeet....@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Comment-Date: Mon, 07 May 2018 22:31:49 +0000
Gerrit-HasComments: Yes

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