// placeNewMongoService wraps placeNewMongo with the proper service stopping
// and starting before dumping the new mongo db, it is mainly to easy testing
// of placeNewMongo.
func placeNewMongoService(newMongoDumpPath string, ver version.Number) error {
err := mongo.StopService("")
if err != nil {
return errors.Annotate(err, "failed to stop mongo")
}
if err := placeNewMongo(newMongoDumpPath, ver); err != nil {
return errors.Annotate(err, "cannot place new mongo")
}
err = mongo.StartService("")
return errors.Annotate(err, "failed to start mongo")
}
func ensureMongoService(agentConfig agent.Config) error {
var oplogSize int
if oplogSizeString := agentConfig.Value(agent.MongoOplogSize); oplogSizeString != "" {
var err error
if oplogSize, err = strconv.Atoi(oplogSizeString); err != nil {
return errors.Annotatef(err, "invalid oplog size: %q", oplogSizeString)
}
}
var numaCtlPolicy bool
if numaCtlString := agentConfig.Value(agent.NumaCtlPreference); numaCtlString != "" {
var err error
if numaCtlPolicy, err = strconv.ParseBool(numaCtlString); err != nil {
return errors.Annotatef(err, "invalid numactl preference: %q", numaCtlString)
}
}
si, ok := agentConfig.StateServingInfo()
if !ok {
return errors.Errorf("agent config has no state serving info")
}
if err := mongo.EnsureServiceInstalled(agentConfig.DataDir(),
si.StatePort,
oplogSize,
numaCtlPolicy,
agentConfig.MongoVersion(),
true,
); err != nil {
return errors.Annotate(err, "cannot ensure that mongo service start/stop scripts are in place")
}
// Installing a service will not automatically restart it.
if err := mongo.StartService(); err != nil {
return errors.Annotate(err, "failed to start mongo")
}
return nil
}