disable consolidator on primary and enable only on replica by default

Signed-off-by: Harshit Gangal <[email protected]>

go/vt/vttablet/tabletserver/tabletenv/config.go

@@ -186,8 +186,8 @@ func registerTabletEnvFlags(fs *pflag.FlagSet) {
 	fs.DurationVar(&heartbeatOnDemandDuration, "heartbeat_on_demand_duration", 0, "If non-zero, heartbeats are only written upon consumer request, and only run for up to given duration following the request. Frequent requests can keep the heartbeat running consistently; when requests are infrequent heartbeat may completely stop between requests")
 
 	fs.BoolVar(&currentConfig.EnforceStrictTransTables, "enforce_strict_trans_tables", defaultConfig.EnforceStrictTransTables, "If true, vttablet requires MySQL to run with STRICT_TRANS_TABLES or STRICT_ALL_TABLES on. It is recommended to not turn this flag off. Otherwise MySQL may alter your supplied values before saving them to the database.")
-	flagutil.DualFormatBoolVar(fs, &enableConsolidator, "enable_consolidator", true, "This option enables the query consolidator.")
-	flagutil.DualFormatBoolVar(fs, &enableConsolidatorReplicas, "enable_consolidator_replicas", false, "This option enables the query consolidator only on replicas.")
+	flagutil.DualFormatBoolVar(fs, &enableConsolidator, "enable_consolidator", false, "This option enables the query consolidator.")
+	flagutil.DualFormatBoolVar(fs, &enableConsolidatorReplicas, "enable_consolidator_replicas", true, "This option enables the query consolidator only on replicas.")
 	fs.Int64Var(&currentConfig.ConsolidatorStreamQuerySize, "consolidator-stream-query-size", defaultConfig.ConsolidatorStreamQuerySize, "Configure the stream consolidator query size in bytes. Setting to 0 disables the stream consolidator.")
 	fs.Int64Var(&currentConfig.ConsolidatorStreamTotalSize, "consolidator-stream-total-size", defaultConfig.ConsolidatorStreamTotalSize, "Configure the stream consolidator total size in bytes. Setting to 0 disables the stream consolidator.")