[jira] [Updated] (KUDU-3342) Add an implementation of the block cache on high bandwidth memory

["Chong Yeol Nah (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KUDU-3342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chong Yeol Nah updated KUDU-3342:
---------------------------------
    Summary: Add an implementation of the block cache on high bandwidth memory  (was: Add an implementation of the block cache on HBW)

> Add an implementation of the block cache on high bandwidth memory
> -----------------------------------------------------------------
>
>                 Key: KUDU-3342
>                 URL: https://issues.apache.org/jira/browse/KUDU-3342
>             Project: Kudu
>          Issue Type: New Feature
>          Components: tserver
>            Reporter: Chong Yeol Nah
>            Priority: Major
>
> Design document: [link|https://docs.google.com/document/d/12zzk7clZpJZtfKoPDL6LB13jRuBSq5LZP2rVfx9T-oc/edit?usp=sharing]
> This feature adds support for a high-bandwidth cache based on memkind[1].
> The cache will be configured using a new flag --block_cache_type=HBW.
> The code changes contained are:
>  * Introduce the new flags to select the cache implementation
>  * Introduce the new cache implementation, which uses hbmalloc APIs to allocate/free memory
> [1] [http://memkind.github.io/memkind/man_pages/hbwmalloc.html]



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