Jim Apple has posted comments on this change.

Change subject: IMPALA-5116: Remove deprecated hash_* types in gutil
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Patch Set 1:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/7414/1/be/src/gutil/hash/hash.h
File be/src/gutil/hash/hash.h:

Line 222
> I guess the reason is that __gnu_cxx::hash<> was not used anywhere.  I didn
I think you might be right. Where was it used before your patch? In the 
hash_set/hash_map definitions?


Line 278
> I got it. My idea is that some specializations in __gnu_cxx should be moved
My suggestion is to dig into this library and understand the details of what 
hash functions are used where. As-is, it seems a little bit like you are trying 
things just to see what seems to work, which is a dangerous way to live in C++.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I06af30fd15acd43a60e3c30af54056c96520b6e9
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Kim Jin Chul <[email protected]>
Gerrit-Reviewer: Jim Apple <[email protected]>
Gerrit-Reviewer: Kim Jin Chul <[email protected]>
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