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From Apache Wiki <wikidi...@apache.org>
Subject [Hama Wiki] Update of "GroomServer" by ChiaHungLin
Date Sun, 16 Feb 2014 08:10:59 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hama Wiki" for change notification.

The "GroomServer" page has been changed by ChiaHungLin:
https://wiki.apache.org/hama/GroomServer?action=diff&rev1=8&rev2=9

  
  == Scenario ==
  
+ === Normal Case ===
+ [[attachment:groomserver_state.png]]
+ 
+  * A GroomServer forks a new task.
+  * The spawned task '''ack''' with metrics to GroomServer.
+  * Upon reception of task's ack, the GroomServer exports metrics to monitor system.
+ 
+ === Failure Case ===
+ [[attachment:groomserver_state.png]]
+ 
+  * A task failure event happens. 
+  * A corresponded GroomServer detects the task failure.
+  * The GroomServer tries to restart the task. 
+  * If failing restart, the GroomServer export by marking the task as failed.
   
  

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