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grpc-js: transition out of TRANSIENT_FAILURE if backoff timer has ended

This commit is contained in:
Michael Lumish 2020-05-27 10:21:42 -07:00
parent 075a75b015
commit ff36a1de07
1 changed files with 23 additions and 11 deletions
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34
packages/grpc-js/src/subchannel.ts
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@ -231,21 +231,25 @@ export class Subchannel {
maxDelay: options['grpc.max_reconnect_backoff_ms'],
};
this.backoffTimeout = new BackoffTimeout(() => {
if (this.continueConnecting) {
this.transitionToState(
[ConnectivityState.TRANSIENT_FAILURE],
ConnectivityState.CONNECTING
);
} else {
this.transitionToState(
[ConnectivityState.TRANSIENT_FAILURE],
ConnectivityState.IDLE
);
}
this.handleBackoffTimer();
}, backoffOptions);
this.subchannelAddressString = subchannelAddressToString(subchannelAddress);
}
private handleBackoffTimer() {
if (this.continueConnecting) {
this.transitionToState(
[ConnectivityState.TRANSIENT_FAILURE],
ConnectivityState.CONNECTING
);
} else {
this.transitionToState(
[ConnectivityState.TRANSIENT_FAILURE],
ConnectivityState.IDLE
);
}
}
/**
* Start a backoff timer with the current nextBackoff timeout
*/
@ -505,6 +509,14 @@ export class Subchannel {
}
this.session = null;
this.stopKeepalivePings();
/* If the backoff timer has already ended by the time we get to the
* TRANSIENT_FAILURE state, we want to immediately transition out of
* TRANSIENT_FAILURE as though the backoff timer is ending right now */
if (!this.backoffTimeout.isRunning()) {
process.nextTick(() => {
this.handleBackoffTimer();
});
}
break;
case ConnectivityState.IDLE:
/* Stopping the backoff timer here is probably redundant because we