P3s

!!!UNDER CONSTRUCTION!!!

States of Pilots and Jobs

Pilots

States:

• active
• dispatched
• running
• finished (completion of a job)
• stopped (timeout w/o getting a job)

Jobs

States:

• defined
• dispatched (sent to a pilot)
• running
• finished

DAG

• Vertex and Edge tables: vertices are jobs and the edges are data
• Leaves of a DAG: can only be a job, not data (since all data are edges and not vertices). This also has the benefit of not having final data unaccounted for - it must me either flushed or moved to permanent storage in most cases. The job/task responsible for either of these operations forms the leaf.