Machine availability triggered alert even server is available.

[jaganathan.ellappan]

Hi All

Machine availability alert is triggered even server is available and healthy. 

While check on Appdynamics server page using time range of last 1 to 4 hours it look like 100% of machine available for all servers. If we check for last 6 hours, it varies in percentage of machine availability on server like 91% to 97%.

I have checked each servers individually, but the result is different. whatever the time range, machine availability is stable with 100%.

there is no log record on controller on communication between machine agent and controller.

but in machine agent it say unable to establish the connection to controller.

Machine agent log,

ERROR ManagedMonitorDelegate - Error sending metrics - will requeue for later transmission
com.singularity.ee.agent.commonservices.metricgeneration.metrics.MetricSendException

Kindly let me know if anyone faced this issue or related to this.

thanks