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Support Article

issue with load balancer healthcheck

SA-22264

Summary



The load balancer health check is not working. User has followed details in (https://pdn.pega.com/support-articles/load-balancer-not-probing-pega-application-urls) and tried setting a user-agent, which failed. 


Error Messages



[0m[0m16:00:54,949 STDOUT [stdout] (Dispatcher-Thread-78) 2016-03-24 16:00:54,948 [-/IP ADDRESS:8443-3] [ STANDARD] [ ] [CCISecurity:01.01.01] (ngineinterface.service.HttpAPI) ERROR IP ADDRESS|IP ADDRESS- IP ADDRESS: java.lang.NullPointerException
java.lang.NullPointerException


Steps to Reproduce



Leave healthcheck as /prweb.


Root Cause



User authentication credentials have not been provided as query string parameters in URL to invoke the PRPC probe activity.

Resolution



User authentication credentials must be provided as query string parameters in URL to invoke the PRPC probe activity.

1. Ensure that the "Allow direct invocation from client or a service" checkbox has been checked in the Security tab of the custom probe activity rule.
2. Pass the user authentication credentials as query string parameters (pzAuth, UserIdentifier and Password) to invoke the PRPC probe activity. See sample URL format below - 

http://<HOSTNAME>:<PORT>/prweb/PRServlet?pyActivity=MyClass.MyActivity&pzAuth=MyApp:AdminAccessGroup&UserIdentifier=MyUser&Password=[base64_encoded_password]

Published April 29, 2016 - Updated October 8, 2020

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