Ilya Pronin created MESOS-7795:
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Summary: Remove "latest" symlink after agent reboot
Key: MESOS-7795
URL: https://issues.apache.org/jira/browse/MESOS-7795
Project: Mesos
Issue Type: Improvement
Components: agent
Reporter: Ilya Pronin
Priority: Minor
Currently when the agent detects that the host was rebooted it doesn't recover
agent info. New agent info is not checkpointed until the agent successfully
registers with a master. If the agent crashes before registering, on restart it
will recover the old agent info that was checkpointed before host reboot.
This can lead to problems. E.g. the agent may flap due to incompatible agent
info, if its resources somehow change after reboot. Or the usage of the old
agent ID in reregistration process may cause crashes like MESOS-7432.
We can remove the "latest" symlink when we detect that current boot ID is
different from the checkpointed one in order to prevent the agent from
recovering stale info after we checkpoint new boot ID.
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