Hello Dan Burkert, Todd Lipcon, I'd like you to do a code review. Please visit
http://gerrit.cloudera.org:8080/3718 to review the following change. Change subject: c++ client: use operation timeout as deadline for finding new leader master ...................................................................... c++ client: use operation timeout as deadline for finding new leader master We had been using the default RPC timeout, which may be set to a very low value as in ClientStressTest_MultiMaster_TestLeaderResolutionTimeout. Now we'll use the operation timeout as the overall deadline while still preserving the semantics of using the default RPC timeout for the GetMasterRegistration() RPCs themselves. As my patch series removes the guarantee that a leader master is elected at the time that cluster tests run, it's important that the logic for finding the leader master provide ample time for an election to finish. Also, I think I've addressed the root cause behind KUDU-573 by fixing a race in GetLeaderMasterRpc's SendRpcCb() and GetMasterRegistrationRpcCbForNode() methods. The race manifests when the last two RPC responses are "I am the leader" and "I am not the leader" respectively. In one interleaving, both responses enter SendRpcCb(), and the second calls DelayedRetryCb(). If that were a call to DelayedRetry() instead, the GetLeaderMasterRpc would be destroyed by the time the reactor thread reran the RPC. Change-Id: I0d770875bbf4703444abac11dbc232d7e382165e --- M src/kudu/client/client-internal.cc M src/kudu/integration-tests/external_mini_cluster.cc M src/kudu/master/master_rpc.cc M src/kudu/master/master_rpc.h M src/kudu/tserver/heartbeater.cc 5 files changed, 52 insertions(+), 38 deletions(-) git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/18/3718/1 -- To view, visit http://gerrit.cloudera.org:8080/3718 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newchange Gerrit-Change-Id: I0d770875bbf4703444abac11dbc232d7e382165e Gerrit-PatchSet: 1 Gerrit-Project: kudu Gerrit-Branch: master Gerrit-Owner: Adar Dembo <a...@cloudera.com> Gerrit-Reviewer: Dan Burkert <d...@cloudera.com> Gerrit-Reviewer: Todd Lipcon <t...@apache.org>