Sometimes Achievement throws error : No address associated with hostname

[neeldoshii]

It occured to me when I was at on carrier network -> hotspot on my testing device and when i tried it using my wifi on my device it worked.

Strange! The carrier internet is working and functional. Another concerning thing is the progress bar doesn't stops on failure. Needs inspection on what's the root cause for it.

Originally posted by @neeldoshii in #2620 (comment)

Logs :

Fetching upload count failed
java.net.UnknownHostException: Unable to resolve host "tools.wmflabs.org": No address associated with hostname
	at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:157)
	at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:105)
	at java.net.InetAddress.getAllByName(InetAddress.java:1154)
	at okhttp3.Dns$Companion$DnsSystem.lookup(Dns.kt:49)
	at okhttp3.internal.connection.RouteSelector.resetNextInetSocketAddress(RouteSelector.kt:164)
	at okhttp3.internal.connection.RouteSelector.nextProxy(RouteSelector.kt:129)
	at okhttp3.internal.connection.RouteSelector.next(RouteSelector.kt:71)
	at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:205)
	at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:106)
	at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:74)
	at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.kt:255)
	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:32)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:95)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.kt:221)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:201)
	at okhttp3.internal.connection.RealCall.execute(RealCall.kt:154)
	at fr.free.nrw.commons.mwapi.OkHttpJsonApiClient.lambda$getUploadCount$2(OkHttpJsonApiClient.java:178)
	at fr.free.nrw.commons.mwapi.OkHttpJsonApiClient.$r8$lambda$UYCJHLr11x1isy4Z-kVHrIT8tRw(Unknown Source:0)
	at fr.free.nrw.commons.mwapi.OkHttpJsonApiClient$$ExternalSyntheticLambda6.call(D8$$SyntheticClass:0)
	at io.reactivex.internal.operators.single.SingleFromCallable.subscribeActual(SingleFromCallable.java:44)
	at io.reactivex.Single.subscribe(Single.java:3603)
	at io.reactivex.internal.operators.single.SingleSubscribeOn$SubscribeOnObserver.run(SingleSubscribeOn.java:89)
	at io.reactivex.Scheduler$DisposeTask.run(Scheduler.java:578)
	at io.reactivex.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:66)
	at io.reactivex.internal.schedulers.ScheduledRunnable.call(ScheduledRunnable.java:57)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:301)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:764)

[neeldoshii]

Reproduced. I am so dumb lol. The issue is client side which was due to my bad connection on my mobile net.

Now the thing which needs to be fixed is throwing error when this happens and show snackbar (retry) instead of infinite loading the progress bar and freezing user activity.

I would like to get assigned for this.