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Posted to dev@hbase.apache.org by "Andrew Kyle Purtell (Jira)" <ji...@apache.org> on 2022/06/12 18:48:00 UTC

[jira] [Resolved] (HBASE-4026) Explicit management of buffer lifecycle in the block cache

     [ https://issues.apache.org/jira/browse/HBASE-4026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Kyle Purtell resolved HBASE-4026.
----------------------------------------
    Resolution: Incomplete

> Explicit management of buffer lifecycle in the block cache
> ----------------------------------------------------------
>
>                 Key: HBASE-4026
>                 URL: https://issues.apache.org/jira/browse/HBASE-4026
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Jason Rutherglen
>            Priority: Minor
>
> The HBase block cache can be problematic because it is unpredictable when Java will reclaim the unused byte arrays using garbage collection.  
> JNA (Java Native Access from Sun/Oracle) provides one possible way to solve this problem.
> https://github.com/twall/jna
> Memory is the name of the class that can be used to test the implementation.
> https://github.com/twall/jna/blob/master/src/com/sun/jna/Memory.java



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