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The "GroomServer" page has been changed by ChiaHungLin: https://wiki.apache.org/hama/GroomServer?action=diff&rev1=6&rev2=7 {{attachment:groomserver_state.png|GroomServer state}} + + == Task Management == + + The GroomServer + + * receives instructions from [[BSPMaste|BSPMasters]]. + * spawns one or more tasks as separated jvm processes where tasks are then executed. + * monitors spawned processes via ''ping''; when a task is + * out of contact (failure/ crashed): launch a new process and restart the task with '''max attempt''' set to '''3''' + * exceeding '''max attempt''': update task status/ notify [[BSPMaster|BSPMasters]] + * sends heartbeat to [[BSPMaster|BSPMasters]] + + +
