[kudu-CR] Add "network plane" as part of ConnectionId

["Michael Ho (Code Review)" <ge...@cloudera.org>]

Hello Kudu Jenkins, Sailesh Mukil, Todd Lipcon, 

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/11681

to look at the new patch set (#3).

Change subject: Add "network_plane" as part of ConnectionId
......................................................................

Add "network_plane" as part of ConnectionId

The motivation for doing so is to allow N services on the same host to
be multiplexed on M different connections. For instance, a server may
host multiple KRPC based services: one for control command and one for
data transfer. Separating the connections between the control channel
and the data channel prevents unnecessary delays of the control commands
due to being stuck behind large data transfers from client to server.

By default, the network_plane of a new ConnectionId is set to
"default_network_plane". A user can change it to a non-default
value by calling Proxy::set_network_plane() on the ConnectionId.

Change-Id: I6767e631fd9530ea54f5ed63ff4c8c179ab216b2
---
M src/kudu/rpc/connection_id.cc
M src/kudu/rpc/connection_id.h
M src/kudu/rpc/messenger.h
M src/kudu/rpc/proxy.cc
M src/kudu/rpc/proxy.h
M src/kudu/rpc/rpc-test.cc
6 files changed, 102 insertions(+), 6 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/81/11681/3
-- 
To view, visit http://gerrit.cloudera.org:8080/11681
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I6767e631fd9530ea54f5ed63ff4c8c179ab216b2
Gerrit-Change-Number: 11681
Gerrit-PatchSet: 3
Gerrit-Owner: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sa...@apache.org>
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>