If I try uploading a big gt 1gig file to Ktor I get ```at ko

Question

If I try uploading a big gt 1gig file to Ktor I get ```at kotlinx coroutines DispatchedContinuation resumeWith Dispatched kt 108 at kotlin coroutines jvm internal BaseContinuationImpl resumeWith ContinuationImpl kt 33 at io ktor http cio MultipartKt$parseMultipart$1 invokeSuspend Multipart kt 319 at io ktor http cio MultipartKt boundary Multipart kt 160 at DelimitedKt skipDelimiter Delimited kt 51 at DelimitedKt skipDelimiterSuspend Delimited kt 56 at ByteBufferChannel lookAheadSuspend ByteBufferChannel kt 1828 at DelimitedKt$skipDelimiterSuspend$2 invoke Delimited kt at DelimitedKt$skipDelimiterSuspend$2 invokeSuspend Delimited kt 58 IOException Broken delimiter occurred``` what could this mean

cy · Answer

Looks like a bug we have similar reports but no stable repro yet

bitkid · Answer

i get that too from time to time without being able to reproduce it consistently

bitkid · Answer

maybe this is the problem <https stackoverflow com questions 58842957 is it possible to upload large files to ktor netty server>

bitkid · Answer

but even with that info and playing around with the buffer sizes i could not reproduce it

dave08 · Answer

We re still getting this error ` IOException Multipart preamble prologue limit of 8192 bytes exceeded` on our server logs anything new about this or maybe a workaround < cy>

dave08 · Answer

Or maybe this is a different problem It s the same service that we re trying to upload files to

dave08 · Answer

On the client side we re getting a ReadTimeout

dave08 · Answer

On Ktor 1 2 3 integrated with Micronaut s Ktor plugin but Ktor is being used to serve requests

dave08 · Answer

Just tried with 1 3 0 and now I m still getting ``` 2020 01 21 19 04 15 at java lang Thread run Thread java 748 2020 01 21 19 04 15 at io netty util concurrent FastThreadLocalRunnable run FastThreadLocalRunnable java 30 2020 01 21 19 04 15 at io netty util internal ThreadExecutorMap$2 run ThreadExecutorMap java 74 2020 01 21 19 04 15 at io netty util concurrent SingleThreadEventExecutor$6 run SingleThreadEventExecutor java 1050 2020 01 21 19 04 15 at io netty channel nio NioEventLoop run NioEventLoop java 518 2020 01 21 19 04 15 at io netty util concurrent SingleThreadEventExecutor runAllTasks SingleThreadEventExecutor java 510 2020 01 21 19 04 15 at io netty util concurrent AbstractEventExecutor safeExecute AbstractEventExecutor java 163 2020 01 21 19 04 15 at kotlinx coroutines DispatchedTask run DispatchedTask kt 56 2020 01 21 19 04 15 at kotlin coroutines jvm internal BaseContinuationImpl resumeWith ContinuationImpl kt 33 2020 01 21 19 04 15 at io ktor server netty cio RequestBodyHandler$job$1 invokeSuspend RequestBodyHandler kt 58 2020 01 21 19 04 15 at ByteWriteChannelKt close ByteWriteChannel kt 165 2020 01 21 19 04 15 at ByteBufferChannel close ByteBufferChannel kt 126 2020 01 21 19 04 15 at ByteBufferChannel tryTerminate$ktor io ByteBufferChannel kt 364 2020 01 21 19 04 15 at ByteBufferChannel resumeReadOp ByteBufferChannel kt 2184 2020 01 21 19 04 15 at internal CancellableReusableContinuation resumeWith CancellableReusableContinuation kt 93 2020 01 21 19 04 15 at kotlinx coroutines DispatchedContinuation resumeWith DispatchedContinuation kt 171 2020 01 21 19 04 15 at kotlin coroutines jvm internal BaseContinuationImpl resumeWith ContinuationImpl kt 33 2020 01 21 19 04 15 at io ktor http cio MultipartKt$parseMultipart$1 invokeSuspend Multipart kt 319 2020 01 21 19 04 15 at io ktor http cio MultipartKt boundary Multipart kt 160 2020 01 21 19 04 15 at DelimitedKt skipDelimiter Delimited kt 51 2020 01 21 19 04 15 at DelimitedKt skipDelimiterSuspend Delimited kt 56 2020 01 21 19 04 15 at ByteBufferChannel lookAheadSuspend ByteBufferChannel kt 1871 2020 01 21 19 04 15 at DelimitedKt$skipDelimiterSuspend$2 invoke Delimited kt 2020 01 21 19 04 15 at DelimitedKt$skipDelimiterSuspend$2 invokeSuspend Delimited kt 58 2020 01 21 19 04 15 IOException Broken delimiter occurred```