Michael Ho has posted comments on this change.

Change subject: IMPALA-3611: track unused Disk IO buffer memory
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Patch Set 4:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/3246/4/be/src/runtime/disk-io-mgr.cc
File be/src/runtime/disk-io-mgr.cc:

Line 781:     if (!FLAGS_disable_mem_pools && free_buffers_[idx].size() < 
FLAGS_max_free_io_buffers) {
> Fixed long line.
Oh right. It's very unfortunate how intertwined disk-io-mgr and memtracker are. 
That's really error prone.

We should either have a version of TryConsume() which doesn't GC or remove the 
GC logic from TryConsume() altogether.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I8777cf76f04d34a46f53d53005412e0f1d63b5b7
Gerrit-PatchSet: 4
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Michael Ho
Gerrit-Reviewer: Michael Ho <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-HasComments: Yes

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