Tracking the Automatic Recovery for an Element

If an element becomes unloaded, TimesTen Scaleout attempts to reload the element if the database is supposed to be loaded. During this time, the element status changes to loading as the element is being automatically recovered by TimesTen Scaleout.

You can monitor the element status with the ttGridAdmin dbStatus -element command. This example shows that the element on the host3.instance1 data instance is in the process of recovering by showing a status of loading.

% ttGridAdmin dbStatus database1 -element
Database database1 element level status as of Wed Jan 10 14:34:08 PST 2018
 
Host  Instance  Elem Status  Date/Time of Event  Message 
----- --------- ---- ------  ------------------- ------- 
host3 instance1    1 loading 2018-01-10 14:33:23         
host4 instance1    2 opened  2018-01-10 14:33:21         
host5 instance1    3 opened  2018-01-10 14:33:23         
host6 instance1    4 opened  2018-01-10 14:33:23         
host7 instance1    5 opened  2018-01-10 14:33:23         
host8 instance1    6 opened  2018-01-10 14:33:23

See Availability Despite the Failure of One Element in a Replica Set, Recovering from a Down Replica Set, and Recovering When the Replica Set Has a Permanently Failed Element.