RE: SFTP Smart Service plugin Remote File Path to send from Appian Cloud to On-Premise

kapilk418 — Fri, 28 May 2021 15:50:45 GMT

Hi, Are you able to identify the issue for connection timeout while having a SFTP connection?

RE: SFTP Smart Service plugin Remote File Path to send from Appian Cloud to On-Premise

rajj0001 — Mon, 14 Oct 2019 22:43:17 GMT

Hello Justin,

I have been trying this out with my personal computer (over the internet and running SSH - so SFTP enabled as can also be confirmed via sftp command from command prompt). My personal computer is serving as an on-premise location that is available over the internet. The Appian Cloud environmnent is our harbourvest development server harbourvestdev.appiancloud.com. I am trying to use the "Send File Over SFTP - Basic Credentials" but it does not work. The logs indicate

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2019-10-14 21:57:51,891 [Appian Work Item - 42626 - execution00 : UnattendedJavaActivityRequest] ERROR com.appiancorp.process.engine.UnattendedJavaActivityRequest - An error occurred while executing activity: id=3922, classname=com.appian.ps.plugins.sftpsmartservices.SendFileOverSFTPBasic
com.appiancorp.suiteapi.process.exceptions.SmartServiceException: userMsg[error.sftp_conn=Error establishing SFTP connection. Confirm your hostname, username and password. See application server log for more details. Error Message: java.net.ConnectException: Connection timed out (Connection timed out)]
at com.appiancorp.suiteapi.process.exceptions.SmartServiceException$Builder.build(SmartServiceException.java:145)
at com.appian.ps.plugins.sftpsmartservices.SendFileOverSFTPBasic.createException(Unknown Source)
at com.appian.ps.plugins.sftpsmartservices.SendFileOverSFTPBasic.run(Unknown Source)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:131)
at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:52)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:131)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:125)
at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:25)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:125)
at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:83)
at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
at com.appiancorp.process.engine.ContinuationRequest.executeOuter(ContinuationRequest.java:71)
at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:100)
at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:35)
at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:84)
at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:239)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.jcraft.jsch.JSchException: java.net.ConnectException: Connection timed out (Connection timed out)
at com.jcraft.jsch.Util.createSocket(Util.java:349)
at com.jcraft.jsch.Session.connect(Session.java:215)
at com.jcraft.jsch.Session.connect(Session.java:183)
... 17 more
Caused by: java.net.ConnectException: Connection timed out (Connection timed out)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:211)
at com.jcraft.jsch.Util.createSocket(Util.java:343)

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For hostname I am using the IP address of my machine. I also do not have any firewall running.

Please advise. I understood your earlier comment to mean that the on-premise location can just be available over the internet also which is the case here.

RE: SFTP Smart Service plugin Remote File Path to send from Appian Cloud to On-Premise

rajj0001 — Mon, 07 Oct 2019 14:04:29 GMT

Thank you Justin. This is helpful.

RE: SFTP Smart Service plugin Remote File Path to send from Appian Cloud to On-Premise

Justin Watts — Mon, 07 Oct 2019 14:02:35 GMT

If your remote location is a S/FTP server, or a server supporting SCP, then yes that plugin should work. The on-premise location would have to be available over the internet or over an Appian Cloud VPN.