MessagingException: Не удалось выполнить сеанс; Вложенное исключение - java.lang.IllegalStateException: не удалось создать сеанс SFTP

Question

У меня есть приложение Spring Integration, которое читает папку и sftp файлы на несколько серверов. Я ссылался на образец СИ here. Когда я запускаю приложение с моего локального компьютера Windows, он успешно переносится, но когда я развертываю его на компьютере UNIX, он дает ошибку ниже.

Может кто-то помочь здесь?

    org.springframework.messaging.MessagingException: Failed to invoke handler; nested exception is org.springframework.messaging.MessagingException: Failed to execute on session; nested exception is java.lang.IllegalStateException: failed to create SFTP Session 
    at org.springframework.integration.handler.advice.RequestHandlerRetryAdvice.doInvoke(RequestHandlerRetryAdvice.java:99) 
    at org.springframework.integration.handler.advice.AbstractRequestHandlerAdvice.invoke(AbstractRequestHandlerAdvice.java:69) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208) 
    at com.sun.proxy.$Proxy600.handleMessage(Unknown Source) 
    at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116) 
    at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:147) 
    at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:120) 
    at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77) 
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:442) 
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:392) 
    at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115) 
    at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:45) 
    at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:105) 
    at org.springframework.integration.router.AbstractMessageRouter.handleMessageInternal(AbstractMessageRouter.java:166) 
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:127) 
    at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116) 
    at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:147) 
    at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:120) 
    at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77) 
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:442) 
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:392) 
    at com.varun.FileSplitter.send(FileSplitter.java:125) 
    at com.varun.FileSplitter.breakIt(FileSplitter.java:57) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:88) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) 
    at java.lang.reflect.Method.invoke(Method.java:613) 
    at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65) 
    at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:482) 
    at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:362) 
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:189) 
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:189) 
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1156) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:626) 
    at java.lang.Thread.run(Thread.java:780) 
    Caused by: org.springframework.messaging.MessagingException: Failed to execute on session; nested exception is java.lang.IllegalStateException: failed to create SFTP Session 
    at org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:419) 
    at org.springframework.integration.file.remote.RemoteFileTemplate.send(RemoteFileTemplate.java:282) 
    at org.springframework.integration.file.remote.RemoteFileTemplate.send(RemoteFileTemplate.java:272) 
    at org.springframework.integration.file.remote.RemoteFileTemplate.send(RemoteFileTemplate.java:264) 
    at org.springframework.integration.file.remote.handler.FileTransferringMessageHandler.handleMessageInternal(FileTransferringMessageHandler.java:142) 
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:127) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:88) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) 
    at java.lang.reflect.Method.invoke(Method.java:613) 
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) 
    at org.springframework.integration.handler.advice.AbstractRequestHandlerAdvice$1.cloneAndExecute(AbstractRequestHandlerAdvice.java:92) 
    at org.springframework.integration.handler.advice.RequestHandlerRetryAdvice$2.doWithRetry(RequestHandlerRetryAdvice.java:92) 
    at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:263) 
    at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:193) 
    at org.springframework.integration.handler.advice.RequestHandlerRetryAdvice.doInvoke(RequestHandlerRetryAdvice.java:88) 
    ... 37 more 
    Caused by: java.lang.IllegalStateException: failed to create SFTP Session 
    at org.springframework.integration.sftp.session.DefaultSftpSessionFactory.getSession(DefaultSftpSessionFactory.java:382) 
    at org.springframework.integration.sftp.session.DefaultSftpSessionFactory.getSession(DefaultSftpSessionFactory.java:55) 
    at org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:408) 
    ... 54 more 
    Caused by: java.lang.IllegalStateException: failed to connect 
    at org.springframework.integration.sftp.session.SftpSession.connect(SftpSession.java:273) 
    at org.springframework.integration.sftp.session.DefaultSftpSessionFactory.getSession(DefaultSftpSessionFactory.java:377) 
    ... 56 more 
    Caused by: com.jcraft.jsch.JSchException: Auth cancel 
    at com.jcraft.jsch.Session.connect(Session.java:511) 
    at com.jcraft.jsch.Session.connect(Session.java:183) 
    at org.springframework.integration.sftp.session.SftpSession.connect(SftpSession.java:264) 

Answer 1

не удалось создать SFTP сессию

См Reference Manual:

Если у вас возникли проблемы с подключением и хотели бы отслеживать создание сессии, а также узнать, какие Сессии опрашиваются вас может включить его, установив логгер на уровень TRACE (например, log4j.category.org.springframework.integration.file = TRACE). См. Также раздел 27.9 «Регистрация SFTP/JSCH».

Вы определенно должны наблюдать что-либо еще в журналах. В противном случае этот общий StackTrace не будет полезен.