Sailesh Mukil has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/9966


Change subject: IMPALA-6813: Hedged reads metrics broken when scanning non-HDFS 
based table
......................................................................

IMPALA-6813: Hedged reads metrics broken when scanning non-HDFS based table

We realized that the libHDFS API call hdfsGetHedgedReadMetrics() crashes
when the 'fs' argument passed to it is not a HDFS filesystem.

There is an open bug for it on the HDFS side: HDFS-13417
However, it looks like we won't be getting a fix for it in the short term,
so our only option at this point is to skip it.

Testing: Made sure that enabling preads and scanning from S3 doesn't
cause a crash.

Change-Id: I48fe80dfd9a1ed68a8f2b7038e5f42b5a3df3baa
---
M be/src/runtime/io/scan-range.cc
1 file changed, 3 insertions(+), 1 deletion(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/66/9966/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I48fe80dfd9a1ed68a8f2b7038e5f42b5a3df3baa
Gerrit-Change-Number: 9966
Gerrit-PatchSet: 1
Gerrit-Owner: Sailesh Mukil <sail...@cloudera.com>

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