firestore: infinite iteration. iterator never stops on service unavailble error. #13359
Description
Client
firestore
Environment
Alpine Docker on GKE
$ go version
go version go1.25.0 darwin/arm64Code and Dependencies
it never done here.
doc, err := iter.Next()
if err != nil {
if errors.Is(err, iterator.Done) {
return
}
// returns here error. which is not DONE! "rpc error: code = Unavailable desc = Query timed out. Please try either limiting the entities scanned, or run with an updated index configuration."Expected behavior
iterator should be Done or stop eventually. it never stops now. error from it is never Done.
Actual behavior
infinite iteration. this is crazy.
Screenshots
this is crazy.
this costed us 100 USD / day to observe these infinite logs generated from iterator. this is 10x than our entire GKE K8S cluster! and thankfully we noticed and shut down and deleted whole logs. but we are small scale, imaging large scale customer sees this? the behavior of this API is insane. if you really want people to use your service you should stop this.
Additional context
we keep having these issues with firestore iterators never terminate #12694. we reported this before to google, but no avail. please finally terminate them if they are broken!
and last time we reported this we were assured that iterator will stop. but it DIDN'T!
Subsequent calls to Next() will just return the cached error, and there are no infinite calls to the service.