Neil Conway created MESOS-6805:
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Summary: Check unreachable task cache for task ID collisions on
launch
Key: MESOS-6805
URL: https://issues.apache.org/jira/browse/MESOS-6805
Project: Mesos
Issue Type: Bug
Components: master
Reporter: Neil Conway
Assignee: Neil Conway
As discussed in MESOS-6785, it is possible to crash the master by launching a
task that reuses the ID of an unreachable/partitioned task. A complete solution
to this problem will be quite involved, but an incremental improvement is easy:
when we see a task launch operation, reject the launch attempt if the task ID
collides with an ID in the per-framework {{unreachableTasks}} cache. This
doesn't catch all situations in which IDs are reused, but it is better than
nothing.
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