Hello Mike Percy, Adar Dembo, Kudu Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/5111
to look at the new patch set (#6).
Change subject: [consensus] KUDU-1613: Fix replica eviction failure for
WRONG_SERVER_UUID
......................................................................
[consensus] KUDU-1613: Fix replica eviction failure for WRONG_SERVER_UUID
Fixes replica eviction from leader where a follower returning
WRONG_SERVER_UUID (perhaps due to a disks-removed situation) is never
evicted from the consensus config.
If a tablet server changes its uuid, it starts responding with
Status::InvalidArgument for most of the RPCs along with the error
code WRONG_SERVER_UUID in the response. Raft consensus can treat this
error code as fatal since this means that all the replicas on that
node has become unavailable and that situation is irrecoverable.
Consensus should evict such nodes from the tablet config and try
to re-replicate if needed. Same tablet server carrying a new uuid
could be one of the candidates considered for re-replication.
Change-Id: I0d3f84fd297a8e4760208a213c1ee393e92499a3
---
M src/kudu/consensus/consensus_peers.cc
M src/kudu/consensus/consensus_peers.h
M src/kudu/consensus/consensus_queue-test.cc
M src/kudu/consensus/consensus_queue.cc
M src/kudu/integration-tests/raft_consensus-itest.cc
5 files changed, 189 insertions(+), 47 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/11/5111/6
--
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I0d3f84fd297a8e4760208a213c1ee393e92499a3
Gerrit-PatchSet: 6
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Dinesh Bhat <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: David Ribeiro Alves <[email protected]>
Gerrit-Reviewer: Dinesh Bhat <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <[email protected]>
Gerrit-Reviewer: Tidy Bot
Gerrit-Reviewer: Todd Lipcon <[email protected]>
