[MESOS-614] Master should remove checkpointing slave that gets disconnected when the new slave tries to register

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Assignee: Vinod Kone
• Reporter: Vinod Kone
• Created: 03/Aug/13 00:10
• Updated: 07/Aug/13 02:59
• Resolved: 07/Aug/13 02:59

Description

When a checkpointing slave is not able to recover (for whatever reason) it tries to register as a new slave. But if this registration happens before master has removed the old slave, the master simply gives the old slave id for the new slave. This means the master thinks the slave is running a bunch of tasks whereas the slave thinks it is new.

Master should remove the slave from its map (send TASK_LOST updates) when this happens and create a new slave entry.