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From "Chris Trezzo (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2180) In-memory backing store for cache manager
Date Thu, 25 Sep 2014 19:42:36 GMT

     [ https://issues.apache.org/jira/browse/YARN-2180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Trezzo updated YARN-2180:
-------------------------------
    Attachment: YARN-2180-trunk-v4.patch

[~kasha] [~vinodkv] [~sjlee0]
Attached is v4. Here are some significant changes:
1. Bootstrapping and old SCMContext logic is now moved to the serviceInit of the in-memory
store.
2. SCMStore interface is annotated properly with private and evolving.
3. Eviction logic of a shared cache resource has moved to the SCMStore implementation. The
isResourceEvictable method has been added to the SCMStore interface to expose this.
4. There is a new configuration class (InMemorySCMStoreConfiguration) that allows for InMemorySCMStore
implementation specific configuration.
5. Javadoc rework and method name refactoring so that items and their references in the shared
cache are referred to as shared cache resources and shared cache resource references.
6. Various other refactors to address comments.

> In-memory backing store for cache manager
> -----------------------------------------
>
>                 Key: YARN-2180
>                 URL: https://issues.apache.org/jira/browse/YARN-2180
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Chris Trezzo
>            Assignee: Chris Trezzo
>         Attachments: YARN-2180-trunk-v1.patch, YARN-2180-trunk-v2.patch, YARN-2180-trunk-v3.patch,
YARN-2180-trunk-v4.patch
>
>
> Implement an in-memory backing store for the cache manager.



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