Hello Juan Yu, Henry Robinson, Sailesh Mukil, Dan Hecht,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/7063
to look at the new patch set (#10).
Change subject: IMPALA-5388: Only retry RPC on lost connection in send call
......................................................................
IMPALA-5388: Only retry RPC on lost connection in send call
Previously, DoRpc() blacklists only a couple of conditions
which shouldn't retry the RPC on exception. This is fragile
as the errors could have happened after the payload has been
successfully sent to the destination. Such aggressive retry
behavior can lead to duplicated row batches being sent, causing
wrong results in queries.
This change fixes the problem by whitelisting the conditions
in which the RPC can be retried. Specifically, it pattern-matches
against certain errors in TSocket::write_partial() in the thrift
library and only retries the RPC in those cases. With SSL enabled,
we will never retry. We should investigate whether there are some
cases in which it's safe to retry.
This change also adds fault injection in the TransmitData() RPC
caller's path to emulate different exception cases.
Change-Id: I176975f2aa521d5be8a40de51067b1497923d09b
---
M be/src/common/global-flags.cc
M be/src/rpc/thrift-util.cc
M be/src/rpc/thrift-util.h
M be/src/runtime/backend-client.h
M be/src/runtime/client-cache.h
M be/src/testutil/CMakeLists.txt
A be/src/testutil/fault-injection-util.cc
M be/src/testutil/fault-injection-util.h
A tests/custom_cluster/test_rpc_exception.py
9 files changed, 297 insertions(+), 54 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/63/7063/10
--
To view, visit http://gerrit.cloudera.org:8080/7063
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I176975f2aa521d5be8a40de51067b1497923d09b
Gerrit-PatchSet: 10
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]>
