Agent connection aborts with Algorithm negotiation fails error and trace file is created

Products

• CA Automic Workload Automation - Automation Engine
• AUTOMIC WORKLOAD AUTOMATION

Issue/Introduction

Error Message :
Caused by: com.uc4.ftpjob.DataTransferException: Connection exception.
at com.uc4.transfer.CITSFTPImpl.(CITSFTPImpl.java:214)
at com.uc4.ftpjob.connections.ConnectionFactory$1.run(ConnectionFactory.java:70)
... 1 more
Caused by: com.jcraft.jsch.JSchException: Algorithm negotiation fail
at com.jcraft.jsch.Session.receive_kexinit(Session.java:583)
at com.jcraft.jsch.Session.connect(Session.java:320)
at com.jcraft.jsch.Session.connect(Session.java:183)
at com.uc4.transfer.CITSFTPImpl.(CITSFTPImpl.java:194)
... 2 more

When upgrading to the Automation Engine (AE) version 12.0.3 and the RA FTP Agent version 4.0.3. the following Error Message is encountered.
 

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and

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The connection with the SSH key to an external address works from the server via the command line
.
The connection via RA_FTP will start with the below Message and then it aborts and a trace file is created similar to the one shown below.

RA-TRACE:

Caused by: com.jcraft.jsch.JSchException: Algorithm negotiation fail	at com.jcraft.jsch.Session.receive_kexinit(Session.java:583)	at com.jcraft.jsch.Session.connect(Session.java:320)	at com.jcraft.jsch.Session.connect(Session.java:183)	at com.uc4.transfer.CITSFTPImpl.<init>(CITSFTPImpl.java:194)	... 2 more

 

Cause

Cause type:
Defect
Root Cause: SSH connection fails due to a missing compression algorithm

Environment

Release: AOMVMW99000-4.0-Automic-Operations Manager-VMware vCenter Agent
Component:

Resolution

Update to a fix version listed below or a newer version if available where a zip compression algorithm has now been added to the solution.

Fix Status: Released

Fix Version(s):
RA FTP Solution 4.0.4 - Available

Additional Information

Workaround :
N/A