Search Engine: Elastic

Article ID: 119891, created on Jan 29, 2014, last review on May 9, 2014

  • Applies to:
  • Plesk Automation 11.5


The unexpected HTTP code '403' was received on the HTTP request to the agent at ''.2014-01-29T21:48:19+01:00 
DEBUG (7)  [dbquery]: [209] SQL: delete from sessions where sess_id="40911befbd46693aefd5c58e4360bc28"
2014-01-29T21:48:19+01:00 DEBUG (7)  [dbquery]: [209] END: 0.00016093254089355 sec

Releasing semaphore 4 in request cleanup


After agent was upgraded on service nodes, and old instance has left running, therefore communication between management node and a service node breaks.


Restart the following services on a problem service node (IP address should be gotten from the initial error):

 /etc/init.d/sw-cp-server stop
Stopping sw-cp-serverd:                                    [  OK  ]

/etc/init.d/sw-cp-server start
Starting sw-cp-serverd:                                    [  OK  ]

/etc/init.d/pem restart
Stopping pleskd:                                           [  OK  ]
Starting pleskd:                                           [  OK  ]

/etc/init.d/plesk-agent restart
Stopping agent.cgi:                                        [  OK  ]
Starting agent.cgi:                                        [  OK  ]

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