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From "Vitaly Brodetskyi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-3793) Do not store disks_info in DB. Store it as dynamic info in memory that can be used to show on the UI.
Date Mon, 18 Nov 2013 11:59:21 GMT
Vitaly Brodetskyi created AMBARI-3793:
-----------------------------------------

             Summary: Do not store disks_info in DB. Store it as dynamic info in memory that
can be used to show on the UI.
                 Key: AMBARI-3793
                 URL: https://issues.apache.org/jira/browse/AMBARI-3793
             Project: Ambari
          Issue Type: Bug
          Components: agent
    Affects Versions: 1.4.1
            Reporter: Vitaly Brodetskyi
            Assignee: Vitaly Brodetskyi




Currently, we store disks info in DB and this information is never updated after registration.
As disks details can change (space availability changes, disks get mounted/unmounted, etc.)
the persisted information is not useful.

We should instead hold the details in memory and refresh it at certain intervals (e.g. once
every 10 minutes) and then alert if space availability hits some lower limit.




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