func (k *kvSender) getFailoverLogs(bucket string,
vbnos []uint32) (*protobuf.FailoverLogResponse, error) {
var err error
var res *protobuf.FailoverLogResponse
addrs, err := k.getAllProjectorAddrs()
if err != nil {
return nil, err
}
loop:
for _, addr := range addrs {
//create client for node's projectors
client := newProjClient(addr)
if res, err = client.GetFailoverLogs(DEFAULT_POOL, bucket, vbnos); err == nil {
break loop
}
}
if logging.IsEnabled(logging.Debug) {
s := ""
for _, l := range res.GetLogs() {
s += fmt.Sprintf("\t%v\n", l)
}
logging.Debugf("KVSender::getFailoverLogs Failover Log Response Error %v \n%v", err, s)
}
return res, err
}
//send the actual MutationStreamRequest on adminport
func (k *kvSender) sendMutationTopicRequest(ap *projClient.Client, topic string,
reqTimestamps *protobuf.TsVbuuid,
instances []*protobuf.Instance) (*protobuf.TopicResponse, error) {
logging.Infof("KVSender::sendMutationTopicRequest Projector %v Topic %v %v \n\tInstances %v",
ap, topic, reqTimestamps.GetBucket(), instances)
logging.LazyVerbosef("KVSender::sendMutationTopicRequest RequestTS %v", reqTimestamps.Repr)
endpointType := "dataport"
if res, err := ap.MutationTopicRequest(topic, endpointType,
[]*protobuf.TsVbuuid{reqTimestamps}, instances); err != nil {
logging.Fatalf("KVSender::sendMutationTopicRequest Projector %v Topic %v %v \n\tUnexpected Error %v", ap,
topic, reqTimestamps.GetBucket(), err)
return res, err
} else {
logging.Infof("KVSender::sendMutationTopicRequest Success Projector %v Topic %v %v InstanceIds %v",
ap, topic, reqTimestamps.GetBucket(), res.GetInstanceIds())
if logging.IsEnabled(logging.Verbose) {
logging.Verbosef("KVSender::sendMutationTopicRequest ActiveTs %v \n\tRollbackTs %v",
debugPrintTs(res.GetActiveTimestamps(), reqTimestamps.GetBucket()),
debugPrintTs(res.GetRollbackTimestamps(), reqTimestamps.GetBucket()))
}
return res, nil
}
}
func (k *kvSender) sendRestartVbuckets(ap *projClient.Client,
topic string, connErrVbs []Vbucket,
restartTs *protobuf.TsVbuuid) (*protobuf.TopicResponse, error) {
logging.Infof("KVSender::sendRestartVbuckets Projector %v Topic %v %v", ap, topic, restartTs.GetBucket())
logging.LazyVerbosef("KVSender::sendRestartVbuckets RestartTs %v", restartTs.Repr)
//Shutdown the vbucket before restart if there was a ConnErr. If the vbucket is already
//running, projector will ignore the request otherwise
if len(connErrVbs) != 0 {
logging.Infof("KVSender::sendRestartVbuckets ShutdownVbuckets %v Topic %v %v ConnErrVbs %v",
ap, topic, restartTs.GetBucket(), connErrVbs)
// Only shutting down the Vb that receieve connection error. It is probably not harmful
// to shutdown every VB in the repairTS, including those that only receive StreamEnd.
// But due to network / projecctor latency, a VB StreamBegin may be coming on the way
// for those VB (especially when RepairStream has already retried a couple of times).
// So shutting all VB in restartTs may unnecessarily causing race condition and
// make the protocol longer to converge. ShutdownVbuckets should have no effect on
// projector that does not own the Vb.
shutdownTs := k.computeShutdownTs(restartTs, connErrVbs)
logging.Infof("KVSender::sendRestartVbuckets ShutdownVbuckets Projector %v Topic %v %v \n\tShutdownTs %v",
ap, topic, restartTs.GetBucket(), shutdownTs.Repr())
if err := ap.ShutdownVbuckets(topic, []*protobuf.TsVbuuid{shutdownTs}); err != nil {
logging.Errorf("KVSender::sendRestartVbuckets Unexpected Error During "+
"ShutdownVbuckets Request for Projector %v Topic %v. Err %v.", ap,
topic, err)
//all shutdownVbuckets errors are treated as success as it is a best-effort call.
//RestartVbuckets errors will be acted upon.
}
}
if res, err := ap.RestartVbuckets(topic, []*protobuf.TsVbuuid{restartTs}); err != nil {
logging.Fatalf("KVSender::sendRestartVbuckets Unexpected Error During "+
"Restart Vbuckets Request for Projector %v Topic %v %v . Err %v.", ap,
topic, restartTs.GetBucket(), err)
return res, err
} else {
logging.Infof("KVSender::sendRestartVbuckets Success Projector %v Topic %v %v", ap, topic, restartTs.GetBucket())
if logging.IsEnabled(logging.Verbose) {
logging.Verbosef("KVSender::sendRestartVbuckets \nActiveTs %v \nRollbackTs %v",
debugPrintTs(res.GetActiveTimestamps(), restartTs.GetBucket()),
debugPrintTs(res.GetRollbackTimestamps(), restartTs.GetBucket()))
}
return res, nil
}
}