Log a warning if provided update interval is greater than max allowed

Signed-off-by: Rohit Nayak <rohit@planetscale.com>

go/vt/vttablet/tabletmanager/vreplication/vreplicator.go

@@ -98,6 +98,10 @@ type vreplicator struct {
 // More advanced constructs can be used. Please see the table plan builder
 // documentation for more info.
 func newVReplicator(id uint32, source *binlogdatapb.BinlogSource, sourceVStreamer VStreamerClient, stats *binlogplayer.Stats, dbClient binlogplayer.DBClient, mysqld mysqlctl.MysqlDaemon, vre *Engine) *vreplicator {
+ if *vreplicationHeartbeatUpdateInterval > vreplicationMinimumHeartbeatUpdateInterval {
+ log.Warningf("the supplied value for vreplication_heartbeat_update_interval:%d seconds is larger than the maximum allowed:%d seconds, vreplication will fallback to %d",
+ *vreplicationHeartbeatUpdateInterval, vreplicationMinimumHeartbeatUpdateInterval, vreplicationMinimumHeartbeatUpdateInterval)
+ }
  return &vreplicator{
  vre: vre,
  id: id,