Leif Hedstrom created TS-4552:
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Summary: Lifecycle hook on cache disk state change
Key: TS-4552
URL: https://issues.apache.org/jira/browse/TS-4552
Project: Traffic Server
Issue Type: Improvement
Components: Cache, TS API
Reporter: Leif Hedstrom
Sometimes, it might be useful to change runtime behavior based on changes (e.g.
disk failures) to the cache. For example, lets say I have 4 disks, and I know
that I need 2 disks to function reasonably well. If I now lose two disks, I'd
want ATS to take action (plugin would implement the action), such as shutting
down, or going into no-accept mode etc.
Also, on startup, the same logic would apply. If I can't satisfy my cache
requirements at startup, it should not let ATS pass the cache-ready lifecycle
hook.
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