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grpc-js: Handle errors when trying to ping #2188

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merged 1 commit into from Aug 8, 2022
Merged

grpc-js: Handle errors when trying to ping #2188

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21 changes: 15 additions & 6 deletions packages/grpc-js/src/subchannel.ts
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Expand Up @@ -361,12 +361,21 @@ export class Subchannel {
this.handleDisconnect();
}, this.keepaliveTimeoutMs);
this.keepaliveTimeoutId.unref?.();
this.session!.ping(
(err: Error | null, duration: number, payload: Buffer) => {
this.keepaliveTrace('Received ping response');
clearTimeout(this.keepaliveTimeoutId);
}
);
try {
this.session!.ping(
(err: Error | null, duration: number, payload: Buffer) => {
this.keepaliveTrace('Received ping response');
clearTimeout(this.keepaliveTimeoutId);
}
);
} catch (e) {
/* If we fail to send a ping, the connection is no longer functional, so
* we should discard it. */
this.transitionToState(
[ConnectivityState.READY],
ConnectivityState.TRANSIENT_FAILURE
);
}
}

private startKeepalivePings() {
Expand Down