Seeing a Warning Message: "Waited 120000 ms But did not receive the response" while using CLW.

Document ID : KB000014121
Last Modified Date : 14/02/2018
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Question:

  What does the following exception mean?

PM EDT [WARN] [CLW] Waited 120000 ms But did not receive the response for the message com.wily.isengard.messageprimitives.service.MessageServiceCallMessage: {com.wily.introscope.spec.server.beans.clw.ICommandLineWorkstationService.executeAsyncCommand, v1, [key: -2553242800051325783, po: Workstation_74.client_main, [Ljava.lang.String;@100363, com.wily.introscope.spec.server.beans.clw.CommandNotification@53fb57]} from address Workstation_74.client_main:261 to service address Server.main:276 from thread main -- We will keep waiting and don't log further messages until we receive the reply

Environment:
All Supported APM versions.
Answer:

  The warning message indicates that CLW has been waiting for 2 minutes, but has not received the data from the Enterprise Manager. This can happen if the network is slow or if the EM is busy and is unable to immediately respond to the request. You can safely ignore this message.

Additional Information:

  If the message continues to persist and the command does not complete, it could be related to performance issues.

Contact CA Support for further investigation.
 
Also see https://www.ca.com/us/services-support/ca-support/ca-support-online/knowledge-base-articles.TEC1396915.html (What does the following message mean? "Waited 120000 ms But did not receive the response for the message com.wily.isengard.messageprimitives.service.CompressedMessageServiceCallMessage")
 
   for additional information.