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grpc-js: Fix pick_first reconnecting without active calls

This commit is contained in:
Michael Lumish 2024-07-03 15:22:03 -07:00
parent c9342572aa
commit c1815e09e2
1 changed files with 9 additions and 2 deletions
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11
packages/grpc-js/src/load-balancer-pick-first.ts
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@ -32,7 +32,7 @@ import {
PickResultType,
UnavailablePicker,
} from './picker';
import { Endpoint, SubchannelAddress } from './subchannel-address';
import { Endpoint, SubchannelAddress, subchannelAddressToString } from './subchannel-address';
import * as logging from './logging';
import { LogVerbosity } from './constants';
import {
@ -348,7 +348,6 @@ export class PickFirstLoadBalancer implements LoadBalancer {
if (newState !== ConnectivityState.READY) {
this.removeCurrentPick();
this.calculateAndReportNewState();
this.requestReresolution();
}
return;
}
@ -483,6 +482,13 @@ export class PickFirstLoadBalancer implements LoadBalancer {
subchannel: this.channelControlHelper.createSubchannel(address, {}),
hasReportedTransientFailure: false,
}));
trace('connectToAddressList([' + addressList.map(address => subchannelAddressToString(address)) + '])');
for (const { subchannel } of newChildrenList) {
if (subchannel.getConnectivityState() === ConnectivityState.READY) {
this.pickSubchannel(subchannel);
return;
}
}
/* Ref each subchannel before resetting the list, to ensure that
* subchannels shared between the list don't drop to 0 refs during the
* transition. */
@ -527,6 +533,7 @@ export class PickFirstLoadBalancer implements LoadBalancer {
const rawAddressList = ([] as SubchannelAddress[]).concat(
...endpointList.map(endpoint => endpoint.addresses)
);
trace('updateAddressList([' + rawAddressList.map(address => subchannelAddressToString(address)) + '])');
if (rawAddressList.length === 0) {
throw new Error('No addresses in endpoint list passed to pick_first');
}