[jira] [Updated] (AMBARI-20620) Add hashing support into agent for caches ; add topology and metadata cache

["Andrew Onischuk (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-20620?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Onischuk updated AMBARI-20620:
-------------------------------------
    Attachment: AMBARI-20620.patch

> Add hashing support into agent for caches ; add topology and metadata cache
> ---------------------------------------------------------------------------
>
>                 Key: AMBARI-20620
>                 URL: https://issues.apache.org/jira/browse/AMBARI-20620
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Andrew Onischuk
>            Assignee: Andrew Onischuk
>             Fix For: 3.0.0
>
>         Attachments: AMBARI-20620.patch
>
>
> Details about hashing can be found in the design doc
> <https://docs.google.com/a/hortonworks.com/document/d/1p4ZW4r_QYx-
> QSvQUbeK7BF4MF6v8rVPs6vD-JwDf4Mk/edit?usp=sharing>
> Also we should making cache immutable so that in future we will be fool-proof
> of someone changing the cache dictionary in runtime. Resulting in redundant
> synchronization of caches between agent and server.



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