Support Article

Adding a node to SMA fails with "Session expired" error



Adding a node to System Management Application (SMA) fails with the below error.

​User is accessing SMA through URL: http://<>:<your_port>/prsysmgmt

Error Messages

com.pega.jmx.ui.util.JMXClientException: Session expired, please login in a new browser window

Steps to Reproduce

Try to add a node to SMA.

Root Cause

A defect or configuration issue in the operating environment. The above error is thrown if an attribute name "initialized" is not set. This attribute is tied to the HTTPServletRequest Session object. In this particular case, subsequent requests from the user's machine were not sending the JSessionID back to the server, thus every request was treated as a new session.


Make the following change to the operating environment:

Change the etc/hosts file to include the correct host to IP mapping for the applicable domain.

For example, your_IP was mapped to and then SMA was accessed at http://<>:<your_port>/prsysmgmt


Published August 5, 2016 - Updated August 12, 2016

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