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From "Sailesh Mukil (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-4786: Clean up how ImpalaServers are created
Date Mon, 18 Sep 2017 23:33:47 GMT
Sailesh Mukil has posted comments on this change.

Change subject: IMPALA-4786: Clean up how ImpalaServers are created

Patch Set 2:

File be/src/service/

PS1, Line 1952: 
> what is the purpose of this? I think we should avoid shared_from_this() unl
Since the Thrift classes expect a boost::shared_ptr, we need to pass in a boost::shared_ptr<ImpalaServer>
to the interface of ImpalaHiveServer2ServiceProcessor, etc.

shared_from_this() is basically a shared_ptr version of the 'this' pointer. So this looks
like the cleanest way to do this.
File be/src/service/impala-server.h:

PS1, Line 123: thrift_
> is that the thrift impala internal service port (as opposed to to krpc veri
It's the thrift internal service port. I renamed it to thrift_be_port.

Line 999:   /// Init() were <= 0.
> can you comment on who owns these? even better, if this class owns them, us
Changed to scoped_ptr.

PS1, Line 1002: ptr<Thrift
> since krpc is on the way, how about thrift_be_server_? this goes away once 
Yes, that's right. I've renamed it.
File be/src/service/

PS1, Line 86: boost::shared_ptr<ImpalaServer> impala_server
> why do we need shared ownership of this thing? who else needs to keep it al
Yes, they are a consequence of the Thrift interface expecting a boost::shared_ptr.

The Thrift classes are:
ImpalaServiceProcessor, ImpalaHiveServer2ServiceProcessor, etc.

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Gerrit-MessageType: comment
Gerrit-Change-Id: If388c5618258a9c4529cd1d63e956566b92bd0d8
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Sailesh Mukil <>
Gerrit-Reviewer: Dan Hecht <>
Gerrit-Reviewer: Sailesh Mukil <>
Gerrit-HasComments: Yes

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