[jira] [Created] (MESOS-8341) Agent can become stuck in (re-)registering state during upgrades

["Benno Evers (JIRA)" <ji...@apache.org>]

Benno Evers created MESOS-8341:
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             Summary: Agent can become stuck in (re-)registering state during upgrades
                 Key: MESOS-8341
                 URL: https://issues.apache.org/jira/browse/MESOS-8341
             Project: Mesos
          Issue Type: Bug
            Reporter: Benno Evers


Currently, an agent will not be erased from the set of currently (re-)registering agents if

 - it tries to (re-)register with a malformed version string
 - it tries to (re-)register with a version smaller than the minimum supported version
 - it tries to (re-)register with a domain when the master has no domain configured
 - the operator marks the slave as gone while the (re-)registration is ongoing

Afterwards, all further (re-)registration attempts with the same agent id will be discarded, because the master still  thinks that the original (re-)registration is ongoing.

Since most realistic way to encounter this issue would be during cluster upgrades, and it will fix itself with a master restart, it is unlikely to be reported externally.

Review: https://reviews.apache.org/r/64506



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