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From "Huaisi Xu (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-4740: Add option to use hdfsPread() for HDFS hedged reads
Date Sat, 07 Jan 2017 00:35:16 GMT
Huaisi Xu has posted comments on this change.

Change subject: IMPALA-4740: Add option to use hdfsPread() for HDFS hedged reads
......................................................................


Patch Set 2:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/5635/2/be/src/runtime/disk-io-mgr-scan-range.cc
File be/src/runtime/disk-io-mgr-scan-range.cc:

PS2, Line 408: hdfsPread
could you point to the reference that we need hdfsPread in order to make use of hdfs hedged
read? from HDFS-5776 looks like it is automatically enabled for Impala if the HDFS client
is configured so?


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Gerrit-MessageType: comment
Gerrit-Change-Id: Iecc8b12aa20cbfe08f4ef6a08a191e49709d9525
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Matthew Jacobs <mj@cloudera.com>
Gerrit-Reviewer: Huaisi Xu <hxu@cloudera.com>
Gerrit-Reviewer: Matthew Jacobs <mj@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstrong@cloudera.com>
Gerrit-HasComments: Yes

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