Any suggestions how to fix below which happened under server

Question

Any suggestions how to fix below which happened under server CIO load test ```io ktor server cio HttpServer Fatal exception in coroutines machinery for DispatchedContinuation ExperimentalCoroutineDispatcher 4bf56b31 scheduler = DefaultDispatcher 1571ced Pool Size core = 2 max = 128 Worker States CPU = 2 blocking = 1 parked = 0 retired = 0 terminated = 0 running workers queues = 2c 0b 0c global queue size = 0 Control State Workers created = 3 blocking = 1 Continuation at io ktor http cio PipelineKt$startConnectionPipeline$1$outputsActor$1 invokeSuspend Pipeline kt 77 7b0cac71 Please read KDoc to handleFatalException method and report this incident to maintainers```

e5l · Answer

< Vsevolod Tolstopyatov JB >

Vsevolod Tolstopyatov [JB] · Answer

Could you please post the whole stacktrace

Petr Makagon · Answer

Jul 13 19 20 12 632 | staging 65599dc5d6 44wnw | 2020 07 13 16 20 12 632 DefaultDispatcher worker 3 ERROR io ktor server cio HttpServer Fatal exception in coroutines machinery for DispatchedContinuation ExperimentalCoroutineDispatcher 4bf56b31 scheduler = DefaultDispatcher 1571ced Pool Size core = 2 max = 128 Worker States CPU = 1 blocking = 1 parked = 1 retired = 0 terminated = 0 running workers queues = 0b 0c global queue size = 0 Control State Workers created = 3 blocking = 1 Continuation at io ktor http cio PipelineKt$startConnectionPipeline$1$outputsActor$1 invokeSuspend Pipeline kt 77 589a6263 Please read KDoc to handleFatalException method and report this incident to maintainers Jul 13 19 20 12 632 | staging 65599dc5d6 44wnw | kotlinx coroutines CoroutinesInternalError Fatal exception in coroutines machinery for DispatchedContinuation ExperimentalCoroutineDispatcher 4bf56b31 scheduler = DefaultDispatcher 1571ced Pool Size core = 2 max = 128 Worker States CPU = 1 blocking = 1 parked = 1 retired = 0 terminated = 0 running workers queues = 0b 0c global queue size = 0 Control State Workers created = 3 blocking = 1 Continuation at io ktor http cio PipelineKt$startConnectionPipeline$1$outputsActor$1 invokeSuspend Pipeline kt 77 589a6263 Please read KDoc to handleFatalException method and report this incident to maintainers Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines DispatchedTask handleFatalException$kotlinx coroutines core Dispatched kt 278 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines DispatchedTask run Dispatched kt 249 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines scheduling CoroutineScheduler runSafely CoroutineScheduler kt 594 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines scheduling CoroutineScheduler access$runSafely CoroutineScheduler kt 60 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines scheduling CoroutineScheduler$Worker run CoroutineScheduler kt 740 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | Caused by java lang IllegalStateException Job ActorCoroutine Cancelled 279f869e is already complete or completing but is being completed with kotlin Unit Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines JobSupport makeCompletingOnce$kotlinx coroutines core JobSupport kt 788 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines AbstractCoroutine resumeWith AbstractCoroutine kt 111 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlin coroutines jvm internal BaseContinuationImpl resumeWith ContinuationImpl kt 46 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | at kotlinx coroutines DispatchedTask run Dispatched kt 334 Jul 13 19 20 12 633 | staging 65599dc5d6 44wnw | 3 common frames omitted

Petr Makagon · Answer

< Vsevolod Tolstopyatov JB > any thoughts