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api/v3rpc: log grpc stream send/recv errors in server-side #8939

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merged 1 commit into from
Nov 30, 2017
Merged

api/v3rpc: log grpc stream send/recv errors in server-side #8939

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2 changes: 2 additions & 0 deletions etcdserver/api/v3rpc/lease.go
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Original file line number Diff line number Diff line change
Expand Up @@ -107,6 +107,7 @@ func (ls *LeaseServer) leaseKeepAlive(stream pb.Lease_LeaseKeepAliveServer) erro
return nil
}
if err != nil {
plog.Warningf("failed to receive lease keepalive request from gRPC stream (%q)", err.Error())
return err
}

Expand All @@ -132,6 +133,7 @@ func (ls *LeaseServer) leaseKeepAlive(stream pb.Lease_LeaseKeepAliveServer) erro
resp.TTL = ttl
err = stream.Send(resp)
if err != nil {
plog.Warningf("failed to send lease keepalive response to gRPC stream (%q)", err.Error())
return err
}
}
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4 changes: 4 additions & 0 deletions etcdserver/api/v3rpc/watch.go
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Original file line number Diff line number Diff line change
Expand Up @@ -140,6 +140,7 @@ func (ws *watchServer) Watch(stream pb.Watch_WatchServer) (err error) {
// deadlock when calling sws.close().
go func() {
if rerr := sws.recvLoop(); rerr != nil {
plog.Warningf("failed to receive watch request from gRPC stream (%q)", rerr.Error())
errc <- rerr
}
}()
Expand Down Expand Up @@ -338,6 +339,7 @@ func (sws *serverWatchStream) sendLoop() {

mvcc.ReportEventReceived(len(evs))
if err := sws.gRPCStream.Send(wr); err != nil {
plog.Warningf("failed to send watch response to gRPC stream (%q)", err.Error())
return
}

Expand All @@ -354,6 +356,7 @@ func (sws *serverWatchStream) sendLoop() {
}

if err := sws.gRPCStream.Send(c); err != nil {
plog.Warningf("failed to send watch control response to gRPC stream (%q)", err.Error())
return
}

Expand All @@ -369,6 +372,7 @@ func (sws *serverWatchStream) sendLoop() {
for _, v := range pending[wid] {
mvcc.ReportEventReceived(len(v.Events))
if err := sws.gRPCStream.Send(v); err != nil {
plog.Warningf("failed to send pending watch response to gRPC stream (%q)", err.Error())
return
}
}
Expand Down