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Support Article

Unable to start agents in production

SA-2288

Summary



User reported that they are unable to start agents in production and due to this they have huge business impact. They see below exception when they try to start agent.

Exception at 20141011T020430.137 GMT:
(B41FCF84100E070616CF88796F428C3D8:(Master Agent))
com.pega.pegarules.pub.clipboard.InvalidParameterException: InvalidParameter unrecognized pyType == '' ExecutionPattern.getExecutionPattern
at com.pega.pegarules.engine.context.agent.ExecutionPattern.getInstance(ExecutionPattern.java:86)
at com.pega.pegarules.engine.context.Agent$AgentQueue.initialize(Agent.java:1738)
at com.pega.pegarules.engine.context.Agent$AgentsForRuleset.(Agent.java:2205)
at com.pega.pegarules.engine.context.Agent$MasterForNewAgents.run(Agent.java(Compiled Code))
at com.pega.pegarules.util.PRTimer$RunLoop.run(PRTimer.java(Compiled Code))
at java.lang.Thread.run(Thread.java:568)

Error Messages



Exception at 20141011T020430.137 GMT:
(B41FCF84100E070616CF88796F428C3D8:(Master Agent))
com.pega.pegarules.pub.clipboard.InvalidParameterException: InvalidParameter unrecognized pyType == '' ExecutionPattern.getExecutionPattern
at com.pega.pegarules.engine.context.agent.ExecutionPattern.getInstance(ExecutionPattern.java:86)
at com.pega.pegarules.engine.context.Agent$AgentQueue.initialize(Agent.java:1738)
at com.pega.pegarules.engine.context.Agent$AgentsForRuleset.(Agent.java:2205)
at com.pega.pegarules.engine.context.Agent$MasterForNewAgents.run(Agent.java(Compiled Code))
at com.pega.pegarules.util.PRTimer$RunLoop.run(PRTimer.java(Compiled Code))
at java.lang.Thread.run(Thread.java:568)


Steps to Reproduce



1> Update any agent rule from periodic to recurring without opening and submitting advanced button.
2> Restart agent


Root Cause



The root cause of this problem is a defect in Pegasystems’ code/rules. Validation is missing while saving agent rule data, wihtout pyType details PRPC allows us to save rule data.



Resolution



This issue is resolved through the following local change: Requested user to add recurrence details and submit changes using advanced button which will appear after changing periodic to reoccurence. 
Suggest Edit

Published January 31, 2016 - Updated October 8, 2020

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