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etcdserver: serializable transactions

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Support case where txn doesn't have to go through quorum.
This commit is contained in:
Anthony Romano 2016-04-04 04:21:42 -07:00
parent bb69dd324e
commit fab3c8e705
1 changed files with 18 additions and 0 deletions
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18
etcdserver/v3demo_server.go
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@ -87,6 +87,10 @@ func (s *EtcdServer) DeleteRange(ctx context.Context, r *pb.DeleteRangeRequest)
}
func (s *EtcdServer) Txn(ctx context.Context, r *pb.TxnRequest) (*pb.TxnResponse, error) {
if isTxnSerializable(r) {
return s.applyV3.Txn(r)
}
result, err := s.processInternalRaftRequest(ctx, pb.InternalRaftRequest{Txn: r})
if err != nil {
return nil, err
@ -94,6 +98,20 @@ func (s *EtcdServer) Txn(ctx context.Context, r *pb.TxnRequest) (*pb.TxnResponse
return result.resp.(*pb.TxnResponse), result.err
}
func isTxnSerializable(r *pb.TxnRequest) bool {
for _, u := range r.Success {
if r := u.GetRequestRange(); r == nil || !r.Serializable {
return false
}
}
for _, u := range r.Failure {
if r := u.GetRequestRange(); r == nil || !r.Serializable {
return false
}
}
return true
}
func (s *EtcdServer) Compact(ctx context.Context, r *pb.CompactionRequest) (*pb.CompactionResponse, error) {
result, err := s.processInternalRaftRequest(ctx, pb.InternalRaftRequest{Compaction: r})
if r.Physical && result.physc != nil {