SAP Knowledge Base Article - Preview

1633267 - FTP: 421 Unexpected reply codeTerminating connection

Symptom

When retrieving files from FTP server using the File FTP Adapter, the following error appears in the logs:

Disconnect from ftp server dummy.ftp.server

Sending command 'QUIT'
ftp server returns reply '221 '
Sending command 'NOOP'
with 421 Timeout (120 seconds): closing control connection.
ftp server returns reply '421 Timeout (120 seconds): closing control connection.'

[EXCEPTION]
com.sap.aii.adapter.file.ftp.FTPEx: 421 Unexpected reply codeTimeout (120 seconds): closing control connection.
at com.sap.aii.adapter.file.ftp.FTPCtrl.validateReply(FTPCtrl.java:557)
at com.sap.aii.adapter.file.ftp.FTPCl.nop(FTPCl.java:1833)
at com.sap.aii.adapter.file.File2XI.checkResourceIntegrity(File2XI.java:5749)
at com.sap.aii.adapter.file.File2XI.invoke(File2XI.java:708)
at com.sap.aii.af.lib.scheduler.JobBroker$Worker.run(JobBroker.java:529)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:185)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:302)


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Environment

  • SAP NetWeaver
  • SAP Process Integration

Product

SAP NetWeaver all versions ; SAP Process Integration all versions

Keywords

IETF, 959, Process Integration, PI, Process Orchestration, PO, NetWeaver, XI, AEX, File adapter, FTP server , KBA , BC-XI-CON-FIL , File Adapter , Problem

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