Hello Mike Percy,
I'd like you to do a code review. Please visit
http://gerrit.cloudera.org:8080/9649
to review the following change.
Change subject: [consensus] FAILED_UNRECOVERABLE replica health status
......................................................................
[consensus] FAILED_UNRECOVERABLE replica health status
Added HealthStatus::FAILED_UNRECOVERABLE for a tablet replica. This is
to mark replicas which are not able to catch up with the leader due to
GC-collected segments of WAL and other unrecoverable cases.
With the introduction of the FAILED_UNRECOVERABLE health status, the
replica management scheme becomes hybrid: the system evicts replicas
with FAILED_UNRECOVERABLE health status before adding a replacement
if it anticipates that it can commit the transaction.
This patch is a part of the fix to address KUDU-2342. It also addresses
KUDU-2322 as well: evicting voter replicas more aggressively if they
fall behind log segment GC threshold.
Change-Id: I35637c5bda6681b732dbc2bbf94b9d4258b12095
Reviewed-on: http://gerrit.cloudera.org:8080/9625
Tested-by: Alexey Serbin <[email protected]>
Reviewed-by: Mike Percy <[email protected]>
(cherry picked from commit a74f9a0dcaf88315c8563b95cdeb5701d9ce5438)
---
M src/kudu/consensus/consensus_queue.cc
M src/kudu/consensus/metadata.proto
M src/kudu/consensus/quorum_util-test.cc
M src/kudu/consensus/quorum_util.cc
M src/kudu/integration-tests/raft_consensus_nonvoter-itest.cc
M src/kudu/integration-tests/ts_tablet_manager-itest.cc
6 files changed, 455 insertions(+), 164 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/49/9649/1
--
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Gerrit-Project: kudu
Gerrit-Branch: branch-1.7.x
Gerrit-MessageType: newchange
Gerrit-Change-Id: I35637c5bda6681b732dbc2bbf94b9d4258b12095
Gerrit-Change-Number: 9649
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Mike Percy <[email protected]>
