The Environment Manager Agent pulls statistics about the Deployment Agent using the ".pid" file in <sashome>/SASDeploymentAgent/9.4. Is that file present and contains the current process ID of the Deployment Agent process on each host?
If so, you may wish to examine the agent.log file in <sas-config>/Levn/SASEnvironmentManager/agent-5.8.0-EE/log, the log should contain a thread on the Deployment Agent and indicate any errors related to reading the metrics on the process.
Note that in a Grid environment with a shared SAS installation directory, the Deployment Agent should not be run on each grid node, as it will overwrite the .pid file.
This behavior is changed in 9.4 M6 to use a unique file name (server.<hostname>.pid).
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Greg Wootton | Principal Systems Technical Support Engineer