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    Primo sftp harvests are occasionally timed out and pipe fails

    • Product: Primo
    • Product Version: 4
    • Relevant for Installation Type: Multi-Tenant Direct, Dedicated-Direct, Local, TotalCare



    Why does Primo sftp harvest occasionally fail with an error message "Failed while trying to copy files from sftp server. com.jcraft.jsch.JSchException: channel is not opened." ?


    This is a known issue caused by specific sshd configuration on the sftp target machine.


    1. Check the following options values of sshd daemon on the sftp server:

    # /usr/sbin/sshd -T | egrep -i 'GSSAPIAuthentication|UseDNS'
    gssapiauthentication yes
    usedns yes

    2. If they are set to yes as in the example above, update them accordingly in /etc/ssh/sshd_config to:

    GSSAPIAuthentication no 
    UseDNS no 


    3. Then restart your sshd daemon using command:

    # service sshd restart

    and check the options again in step 1. They should appear now as:

    gssapiauthentication no
    usedns no


    • Article last edited: 14-Jun-2017