Fatal Exception: io.reactivex.rxjava3.exceptions.UndeliverableException

[mvishnureddy007]

Before opening, please confirm:

• [X] I have searched for duplicate or closed issues and discussions.

Language and Async Model

Java

Amplify Categories

DataStore

Gradle script dependencies

// Put output below this line

//Amplify Framework
    implementation 'com.amplifyframework:core:2.13.0'
    implementation 'com.amplifyframework:aws-api:2.13.0'
    implementation 'com.amplifyframework:aws-datastore:2.13.0'
    implementation 'com.amplifyframework:aws-auth-cognito:2.13.0'
    implementation 'com.amplifyframework:rxbindings:2.13.0'

Environment information

# Put output below this line

------------------------------------------------------------
Gradle 7.2
------------------------------------------------------------

Build time:   2021-08-17 09:59:03 UTC
Revision:     a773786b58bb28710e3dc96c4d1a7063628952ad

Kotlin:       1.5.21
Groovy:       3.0.8
Ant:          Apache Ant(TM) version 1.10.9 compiled on September 27 2020
JVM:          11.0.21 (Ubuntu 11.0.21+9-post-Ubuntu-0ubuntu122.04)
OS:           Linux 6.2.0-37-generic amd64

Please include any relevant guides or documentation you're referencing

No response

Describe the bug

The exception could not be delivered to the consumer because it has already canceled/disposed the flow or the exception has nowhere to go to begin with. Further reading: https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling | DataStoreException{message=Wanted 1 metadata for item with id = b73c344a-ce0a-44b4-9893-293510a1b992, but had 0., cause=null, recoverySuggestion=This is likely a bug. please report to AWS.}

Reproduction steps (if applicable)

No response

Code Snippet

// Put your code below this line.

Log output

// Put your logs below this line

amplifyconfiguration.json

No response

GraphQL Schema

// Put your schema below this line

Additional information and screenshots

No response

[gpanshu]

Hello,

Can you provide an example schema and replication steps to help reproduce the issue ?

[mvishnureddy007]

Hello, I have integrated amplify aws for chat functionality in my application

These are the following steps

1. Logged into My application and amplify sign is integrated.
2. I have logged out from device so before logged from device I have implemented clearing datastore and signout implemented.
3. I went to offline and search for content in Login page and come back online.
4. I was in login page and trying enter data at that time the app got crash.

[mattcreaser]

Hi @mvishnureddy007 could you please provide a full log showing this error, there is probably another upstream error causing the problem.

[mattcreaser]

Closing this issue since we haven't heard back, but please feel free to open another issue if you're still experiencing a problem here, thanks!

[github-actions[bot]]

This issue is now closed. Comments on closed issues are hard for our team to see. If you need more assistance, please open a new issue that references this one.

[mukszngrl]

Same error I observed while delta sync is going on network fluctuates.

Fatal Exception: io.reactivex.rxjava3.exceptions.UndeliverableException
The exception could not be delivered to the consumer because it has already canceled/disposed the flow or the exception has nowhere to go to begin with. Further reading: https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling | DataStoreException{message=Failure performing sync query to AppSync., cause=ApiException{message=OkHttp client request failed., cause=java.net.UnknownHostException: Unable to resolve host "d7davpai2nashp7zij5zxwri5e.appsync-api.us-east-1.amazonaws.com": No address associated with hostname, recoverySuggestion=See attached exception for more details.}, recoverySuggestion=Sorry, we don't have a suggested fix for this error yet.}

io.reactivex.rxjava3.plugins.RxJavaPlugins.onError (RxJavaPlugins.java:367)
io.reactivex.rxjava3.internal.operators.single.SingleCreate$Emitter.onError (SingleCreate.java:82)
com.amplifyframework.datastore.storage.sqlite.PersistentModelVersion$$ExternalSyntheticLambda2.accept (Unknown Source:4)
com.amplifyframework.datastore.appsync.AppSyncClient.lambda$sync$0 (AppSyncClient.java:115)
com.amplifyframework.datastore.appsync.AppSyncClient$$ExternalSyntheticLambda0.accept (Unknown Source:4)
com.amplifyframework.api.aws.AppSyncGraphQLOperation$OkHttpCallback.onFailure (AppSyncGraphQLOperation.java:163)
okhttp3.internal.connection.RealCall$AsyncCall.run (RealCall.kt:545)
java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:644)
java.lang.Thread.run (Thread.java:1012)

Caused by com.amplifyframework.datastore.DataStoreException
Failure performing sync query to AppSync.

Caused by com.amplifyframework.api.ApiException
OkHttp client request failed.

Caused by java.net.UnknownHostException
Unable to resolve host "d7davpai2nashp7zij5zxwri5e.appsync-api.us-east-1.amazonaws.com": No address associated with hostname

Caused by android.system.GaiException
android_getaddrinfo failed: EAI_NODATA (No address associated with hostname)

[tobias-feldmann]

We also see this error on many devices via the Google Play logs. But I can't reproduce it on our test devices. We use the latest Amplify version 2.21.0 It would be great if you could open this issue again.

com.amplifyframework.datastore.storage.sqlite.PersistentModelVersion$$ExternalSyntheticLambda2.accept Exception io.reactivex.rxjava3.exceptions.UndeliverableException: at io.reactivex.rxjava3.plugins.RxJavaPlugins.onError (RxJavaPlugins.java:367) at io.reactivex.rxjava3.internal.operators.single.SingleCreate$Emitter.onError (SingleCreate.java:82) at com.amplifyframework.datastore.storage.sqlite.PersistentModelVersion$$ExternalSyntheticLambda2.accept at com.amplifyframework.datastore.appsync.AppSyncClient.lambda$sync$0 (AppSyncClient.java:115) at com.amplifyframework.datastore.appsync.AppSyncClient$$ExternalSyntheticLambda0.accept at com.amplifyframework.api.aws.MultiAuthAppSyncGraphQLOperation$OkHttpCallback.onFailure (MultiAuthAppSyncGraphQLOperation.java:199) at okhttp3.internal.connection.RealCall$AsyncCall.run (RealCall.kt:535) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:644) at java.lang.Thread.run (Thread.java:1012)