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Talend TSSH Component Issue - Cannot negotiate, proposals do not match

 

Talend TSSH Component failing with error as below - 

java.io.IOException: There was a problem while connecting to localhost:22
       at ch.ethz.ssh2.Connection.connect(Connection.java:805)
       at ch.ethz.ssh2.Connection.connect(Connection.java:595)
   ......
       ......
Caused by: java.io.IOException: Key exchange was not finished, connection is closed.
       at ch.ethz.ssh2.transport.KexManager.getOrWaitForConnectionInfo(KexManager.java:78)
       at ch.ethz.ssh2.transport.TransportManager.getConnectionInfo(TransportManager.java:281)
       at ch.ethz.ssh2.Connection.connect(Connection.java:761)
       ... 5 more
Caused by: java.io.IOException: Cannot negotiate, proposals do not match.
       at ch.ethz.ssh2.transport.ClientKexManager.handleMessage(ClientKexManager.java:123)
       at ch.ethz.ssh2.transport.TransportManager.receiveLoop(TransportManager.java:941)
       at ch.ethz.ssh2.transport.TransportManager$1.run(TransportManager.java:510)
       at java.lang.Thread.run(Thread.java:748) 


Cause-

Talend 7.3 - Ganymed is now deprecated and the component now supports a new library: Apache mina-sshd. Refer https://help.talend.com/r/en-US/7.3/release-notes-data-integration-products/what-s-new-in-r2020-08


Solution-

Apply Talend Patch - Patch_20210924_R2021-09_v2-7.3.1.zip Refer - https://help.talend.com/r/dRSJ9~EAyTy01QgTh1JEuQ/ODB0uX0UJU2utsqxC77j4w



Installing the patch using Software update (for on-premises users)
  • Log in to Talend Administration Center and go to Settings->Configuration->Software Update. Enter the correct values and save them referring to the documentation: Configuring the Software Update repository in Talend Administration Center.
  • Download the new patch from the Settings->Software Update page into the nexus repository.
  • Log in to Talend Studio with remote mode.
  • Click the Update button displayed on the login window to install the patch.

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