Descriptions, potential causes and possible rememdies for alerts triggered by Ambari.
|Alert||Alert Type||Description||Potential Causes||Possible Remedies|
|Host Disk Usage||SCRIPT||This host-level alert is triggered if the amount of disk space used on a host goes above specific thresholds (50% warn, 80% crit ).||The amount of free disk space left is low.||Check host for disk space to free or add more storage.|
|Ambari Agent Heartbeat||SERVER||This alert is triggered if the server has lost contact with an agent.||
Ambari Server host is unreachable from Agent host.
Ambari Agent is not running.
Check connection from Agent host to Ambari Server.
Check Agent is running.
|Ambari Server Alerts||SERVER||This alert is triggered if the server detects that there are alerts which have not run in a timely manner.||
Agents are not reporting alert status.
Agents are not running.
|Check that all Agents are running and heartbeating.|
|Ambari Server Performance||SERVER||This alert is triggered if the Ambari Server detects that there is a potential performance problem with Ambari.||This type of issue can arise for many reasons, but is typically attributed to slow database queries and host resource exhaustion.||Check your Ambari Server database connection and database activity. Check your Ambari Server host for resource exhaustion such as memory.|