Hello I m using ktor client v1 6 8 and got this exception `j

Question

Hello I m using ktor client v1 6 8 and got this exception `java io EOFException Failed to parse HTTP response unexpected EOF` Can t seem to understand further what happened but from my understanding it seems like it tried to parse the response payload but there wasn t any

André Martins · Answer

```java io EOFException Failed to parse HTTP response unexpected EOF at io ktor client engine cio UtilsKt readResponse utils kt 116 at i k c engine cio UtilsKt$readResponse$1 invokeSuspend utils kt at k c jvm internal BaseContinuationImpl resumeWith ContinuationImpl kt 33 at kotlinx coroutines DispatchedTask run DispatchedTask kt 106 at k c scheduling CoroutineScheduler runSafely CoroutineScheduler kt 571 at k c scheduling CoroutineScheduler$Worker executeTask CoroutineScheduler kt 750 at k c scheduling CoroutineScheduler$Worker runWorker CoroutineScheduler kt 678 at k c scheduling CoroutineScheduler$Worker run CoroutineScheduler kt 665 ```

André Martins · Answer

André Martins · Answer

Seems like the channel was closed and parseResponse returned null

Aleksei Tirman [JB] · Answer

Could you please share a code snippet to reproduce your issue

André Martins · Answer

I have a CIO client with the JsonFeature and Logging installed and just making a GET request to an endpoint that returns some data It looks like it was a problem in the middle and somehow it closed the connection and made ktor throw that error

Csabi Szenczi · Answer

Bump I think this is working as expected and BE response is the cause but my question is when we get he java io EOFException I see that ktor is retrying the request How can this mechanism be disabled as there are no throwable produced the failure of parsing just printed in the console Or how can ktor be forced to throw a the error instead of silently log it < Aleksei Tirman JB >

Csabi Szenczi · Answer

At the time of printing the EOF exception there are no response logged from ktor would this still be possible to catch in HttpResponseValidator validateResponse block maybe

Aleksei Tirman [JB] · Answer

Ktor doesn t retry a request except when the `HttpRequestRetry` plugin is installed or the `OkHttp` engine is used Can you share a code snippet to reproduce the retry on EOF exception

Csabi Szenczi · Answer

Retry is installed so I guess this is expected and the desired behaviour in all cases except when EOF happens So when EOF exception happens due to BE error I would like to ditch the retry and just throw the exception but right now the EOF is just logged as normal message to the console There is a validator installed maybe I should add an other after this for the EOF exception ```HttpResponseValidator handleResponseExceptionWithRequest cause gt if cause is ResponseException return handleResponseExceptionWithRequest val exceptionResponse = cause response when exceptionResponse status ```

Aleksei Tirman [JB] · Answer

Can you please <https youtrack jetbrains com newIssue project=KTOR|file an issue> about EOF exception being retried Also please attach a code snippet to reproduce it