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priority: improve tracing, cancel failover timer when selecting child

This commit is contained in:
Michael Lumish 2020-08-28 09:50:33 -07:00
parent 597fc1c57b
commit 8269fd4bca
1 changed files with 4 additions and 0 deletions
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4
packages/grpc-js/src/load-balancer-priority.ts
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@ -111,6 +111,7 @@ export class PriorityLoadBalancer implements LoadBalancer {
}
private updateState(connectivityState: ConnectivityState, picker: Picker) {
trace('Child ' + this.name + ' ' + ConnectivityState[this.connectivityState] + ' -> ' + ConnectivityState[connectivityState]);
this.connectivityState = connectivityState;
this.picker = picker;
this.parent.onChildStateChange(this);
@ -118,7 +119,9 @@ export class PriorityLoadBalancer implements LoadBalancer {
private startFailoverTimer() {
if (this.failoverTimer === null) {
trace('Starting failover timer for child ' + this.name);
this.failoverTimer = setTimeout(() => {
trace('Failover timer triggered for child ' + this.name);
this.failoverTimer = null;
this.updateState(
ConnectivityState.TRANSIENT_FAILURE,
@ -308,6 +311,7 @@ export class PriorityLoadBalancer implements LoadBalancer {
private selectPriority(priority: number) {
this.currentPriority = priority;
const chosenChild = this.children.get(this.priorities[priority])!;
chosenChild.cancelFailoverTimer();
this.updateState(
chosenChild.getConnectivityState(),
chosenChild.getPicker()