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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2013/08/27 12:24:54 UTC

[jira] [Updated] (HBASE-9352) Refactor HFile block encoding

     [ https://issues.apache.org/jira/browse/HBASE-9352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Purtell updated HBASE-9352:
----------------------------------

    Affects Version/s: 0.98.0
    
> Refactor HFile block encoding
> -----------------------------
>
>                 Key: HBASE-9352
>                 URL: https://issues.apache.org/jira/browse/HBASE-9352
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.98.0
>            Reporter: Andrew Purtell
>
> The set of block encoders available for processing HFiles is fixed at compile time. Rather than hardcode the set of available encoders in an enum, consider a registry and a couple of APIs for adding additional encoders at runtime. Modify HFile (V3) metadata to specify encoders by string or classname.
> Consider a stackable encoding API, so coprocessors can watch, change, or override block coding in upcalls. 
> Block encoders are tightly bound to the particulars of HFile version internals. It would be good if some of that can go away.
> Could also consider dynamic loading of encoder implementations. 

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