[jira] [Created] (MESOS-7596) Multiple registration attempts might result in agent shutdown

["Neil Conway (JIRA)" <ji...@apache.org>]

Neil Conway created MESOS-7596:
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             Summary: Multiple registration attempts might result in agent shutdown
                 Key: MESOS-7596
                 URL: https://issues.apache.org/jira/browse/MESOS-7596
             Project: Mesos
          Issue Type: Bug
            Reporter: Neil Conway


This sequence of events is possible:

# Agent sends register message M1 to master.
# Agent register timer expires, sends register message M2 to master.
# Master sees M1 and adds agent with ID A1.
# Agent gets SlaveRegisteredMessage with ID A1.
# The master <-> agent socket breaks; the master marks the agent as disconnected.
# Master sees M2; since the agent is currently disconnected, the master removes A1 and adds the agent with ID A2.
# Agent gets SlaveRegisteredMessage with ID A2. Since this is unexpected, the agent exits ("Registered but got wrong id").

Shutting down the agent is unfortunate, although arguably not catastrophic.



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