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Merge pull request #9549 from nolouch/handle-fail

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etcdserver: handle proposal error when processing internal raft request
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Gyuho Lee 2018-04-09 14:56:17 -07:00 committed by GitHub
commit eceacac0fc
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2 changed files with 9 additions and 2 deletions
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4
CHANGELOG-3.4.md
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@ -30,6 +30,8 @@ See [code changes](https://github.com/coreos/etcd/compare/v3.3.0...v3.4.0) and [
- Futhermore, when `--auto-compaction-mode=periodic --auto-compaction-retention=30m` and writes per minute are about 1000, `v3.3.0`, `v3.3.1`, and `v3.3.2` compact revision 30000, 33000, and 36000, for every 3-minute, while `v3.3.3` *or later* compacts revision 30000, 60000, and 90000, for every 30-minute.
- Improve [lease expire/revoke operation performance](https://github.com/coreos/etcd/pull/9418), address [lease scalability issue](https://github.com/coreos/etcd/issues/9496).
- Make [Lease `Lookup` non-blocking with concurrent `Grant`/`Revoke`](https://github.com/coreos/etcd/pull/9229).
- Make [etcd server return `raft.ErrProposalDropped` on internal Raft proposal drop](https://github.com/coreos/etcd/pull/9549).
- e.g. a node is removed from cluster, [ongoing leadership transfer](https://github.com/coreos/etcd/issues/8975).
- Improve [functional tester](https://github.com/coreos/etcd/tree/master/functional) coverage: use [proxy layer to run network fault tests in CI](https://github.com/coreos/etcd/pull/9081), enable [TLS both for server and client](https://github.com/coreos/etcd/pull/9534), add [liveness mode](https://github.com/coreos/etcd/issues/9230), and [shuffle test sequence](https://github.com/coreos/etcd/issues/9381).
### Breaking Changes
@ -158,7 +160,7 @@ See [security doc](https://github.com/coreos/etcd/blob/master/Documentation/op-g
- Fix [deadlock during PreVote migration process](https://github.com/coreos/etcd/pull/8525).
- Add [`raft.ErrProposalDropped`](https://github.com/coreos/etcd/pull/9067).
- Now [`(r *raft) Step` returns `raft.ErrProposalDropped`](https://github.com/coreos/etcd/pull/9137) if a proposal has been ignored.
- e.g. a node is removed from cluster, [ongoing leadership transfer](https://github.com/coreos/etcd/issues/8975), etc.
- e.g. a node is removed from cluster, [ongoing leadership transfer](https://github.com/coreos/etcd/issues/8975).
- Improve [Raft `becomeLeader` and `stepLeader`](https://github.com/coreos/etcd/pull/9073) by keeping track of latest `pb.EntryConfChange` index.
- Previously record `pendingConf` boolean field scanning the entire tail of the log, which can delay hearbeat send.
- Fix [missing learner nodes on `(n *node) ApplyConfChange`](https://github.com/coreos/etcd/pull/9116).

7
etcdserver/v3_server.go
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@ -582,7 +582,12 @@ func (s *EtcdServer) processInternalRaftRequestOnce(ctx context.Context, r pb.In
defer cancel()
start := time.Now()
s.r.Propose(cctx, data)
err = s.r.Propose(cctx, data)
if err != nil {
proposalsFailed.Inc()
s.w.Trigger(id, nil) // GC wait
return nil, err
}
proposalsPending.Inc()
defer proposalsPending.Dec()