Overview
Contains multiple Smart Services for interacting with a remote file server via SFTP, FTP, or SCP. Using these services, an Appian application can be configured to send and receive files, folders, and metadata in a process. Features support for zlib compression.
Key Features & Functionality
Smart Services included:
All smart services in the package use Secure Credentials Store.
I am trying to send document using 'Send File Over SFTP' but receiving below error:
2021-12-07 13:26:29,772 [Appian Work Item - 54497 - execution00 : UnattendedJavaActivityRequest] ERROR com.appian.ps.plugins.sftpsmartservices.SendFileOverSFTP - Error connecting to remote SFTP servercom.jcraft.jsch.JSchException: java.net.UnknownHostException: https://host.com 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) at com.appian.ps.plugins.sftpsmartservices.SFTPConfig.connect(SFTPConfig.java:178) at com.appian.ps.plugins.sftpsmartservices.SendFileOverSFTP.run(SendFileOverSFTP.java:140) 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$1.call(DefaultActivityExecutor.java:125) at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:27) at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:125) at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88) at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:21) at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67) at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55) at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:116) at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68) at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:123) at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36) at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:94) at org.springframework.jca.work.SimpleTaskWorkManager$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: java.net.UnknownHostException: https://host.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.VPNSocketImpl.connect(VPNSocketImpl.java:50) at java.net.Socket.connect(Socket.java:607) at java.net.Socket.connect(Socket.java:556) at java.net.Socket.<init>(Socket.java:452) at java.net.Socket.<init>(Socket.java:229) at com.jcraft.jsch.Util.createSocket(Util.java:343) ... 23 more2021-12-07 13:26:29,773 [Appian Work Item - 54497 - execution00 : UnattendedJavaActivityRequest] ERROR com.appian.ps.plugins.sftpsmartservices.SendFileOverSFTP - Error transferring file to SFTP serverjava.lang.NullPointerException at com.appian.ps.plugins.sftpsmartservices.SendFileOverSFTP.run(SendFileOverSFTP.java:149) 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$1.call(DefaultActivityExecutor.java:125) at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:27) at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:125) at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88) at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:21) at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67) at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55) at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:116) at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68) at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:123) at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36) at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:94) at org.springframework.jca.work.SimpleTaskWorkManager$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)
Has anyone faced similar issues? Please let me know if you have any inputs on this.
Hi Tj,
The Cause of the issue is only due to network restrictions .Please try to manually/use file transfer tool like winscp to transfer a file through sftp from the appian machine .Please share us if you are able to do the same
Above is just sample endpoint as I can't disclose actual endpoint over here. However I had asked support from Appian and they replied that they are able to connect to endpoint from Appian so its not Appian issue and something to do with plugin.
Hi From the Error Log ,we can see that the server is trying to connect to https://host.com which is not resolvable from your machines network resulting in a unknown host exception .
Please try checking the same from your side