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replication/driver: automatic retries on connectivity-related errors

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This commit is contained in:
Christian Schwarz
2019-03-11 13:46:36 +01:00
parent 07b43bffa4
commit c87759affe
20 changed files with 933 additions and 90 deletions
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9
rpc/dataconn/dataconn_server.go
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@@ -25,6 +25,8 @@ type Handler interface {
// It is guaranteed that Server calls Receive with a stream that holds the IdleConnTimeout
// configured in ServerConfig.Shared.IdleConnTimeout.
Receive(ctx context.Context, r *pdu.ReceiveReq, receive zfs.StreamCopier) (*pdu.ReceiveRes, error)
// PingDataconn handles a PingReq
PingDataconn(ctx context.Context, r *pdu.PingReq) (*pdu.PingRes, error)
}
type Logger = logger.Logger
@@ -125,6 +127,13 @@ func (s *Server) serveConn(nc *transport.AuthConn) {
return
}
res, handlerErr = s.h.Receive(ctx, &req, &streamCopier{streamConn: c, closeStreamOnClose: false}) // SHADOWING
case EndpointPing:
var req pdu.PingReq
if err := proto.Unmarshal(reqStructured, &req); err != nil {
s.log.WithError(err).Error("cannot unmarshal ping request")
return
}
res, handlerErr = s.h.PingDataconn(ctx, &req) // SHADOWING
default:
s.log.WithField("endpoint", endpoint).Error("unknown endpoint")
handlerErr = fmt.Errorf("requested endpoint does not exist")