Henry Robinson has posted comments on this change.

Change subject: IMPALA-5388: Only retry RPC on lost connection in send call
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Patch Set 9: Code-Review+1

(6 comments)

Thanks - I think this is a great improvement.

http://gerrit.cloudera.org:8080/#/c/7063/9/be/src/rpc/thrift-util.cc
File be/src/rpc/thrift-util.cc:

PS9, Line 194: DCHECK_EQ
can you make this a static assert? Otherwise we might not hit this as early 
(e.g. until we run tests).


http://gerrit.cloudera.org:8080/#/c/7063/9/be/src/runtime/client-cache.h
File be/src/runtime/client-cache.h:

PS9, Line 297: string
this should be std::string (I think some google header rudely uses std :/).


PS9, Line 298: hits
nit: prefer "hit an" or "saw an"


PS9, Line 299: client_
TNetworkAddressToString(address_) (match the other exception messages, not the 
log message that was removed).


http://gerrit.cloudera.org:8080/#/c/7063/9/be/src/testutil/fault-injection-util.cc
File be/src/testutil/fault-injection-util.cc:

PS9, Line 69: if ((send_count.Load() / 1024) % 2 == 0) {
it's unlikely in the extreme, but you could never take this branch if 1024 
sends happen between lines 65 and 69. Maybe just cache the return from 
send_count.Add(1) and use it here?


http://gerrit.cloudera.org:8080/#/c/7063/9/tests/custom_cluster/test_rpc_exception.py
File tests/custom_cluster/test_rpc_exception.py:

PS9, Line 27: TEST_QUERY
can you comment to say that proper test coverage relies on sending 
TransmitData() > 1024 times?


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Gerrit-MessageType: comment
Gerrit-Change-Id: I176975f2aa521d5be8a40de51067b1497923d09b
Gerrit-PatchSet: 9
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Michael Ho <[email protected]>
Gerrit-Reviewer: Alan Choi <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Henry Robinson <[email protected]>
Gerrit-Reviewer: Juan Yu <[email protected]>
Gerrit-Reviewer: Michael Ho <[email protected]>
Gerrit-Reviewer: Sailesh Mukil <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-HasComments: Yes

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