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https://issues.apache.org/jira/browse/HBASE-13373?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-13373:
--------------------------
Attachment: 13373.v6.txt
> Squash HFileReaderV3 together with HFileReaderV2 and AbstractHFileReader;
> ditto for Scanners and BlockReader, etc.
> ------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-13373
> URL: https://issues.apache.org/jira/browse/HBASE-13373
> Project: HBase
> Issue Type: Task
> Reporter: stack
> Assignee: stack
> Attachments:
> 0001-HBASE-13373-Squash-HFileReaderV3-together-with-HFile.patch, 13373.txt,
> 13373.v3.txt, 13373.v3.txt, 13373.v5.txt, 13373.v6.txt, 13373.wip.txt
>
>
> Profiling I actually ran into case where complaint that could not inline
> because:
> MaxInlineLevel maximum number of nested calls that are inlined 9 intx
> i.e. method was more than 9 levels deep.
> The HFileReaderV? with Abstracts is not needed anymore now we are into the
> clear with V3 enabled since hbase 1.0.0; we can have just an Interface and an
> implementation. If we need to support a new hfile type, can hopefully do it
> in a backward compatible way now we have Cell Interface, etc.
> Squashing all this stuff together actually makes it easier figuring what is
> going on when reading code. I can also get rid of a bunch of duplication too.
> Attached is a WIP. Doesn't fully compile yet but you get the idea.
> I'll keep on unless objection. Will try it against data written with old
> classes as soon as I have something working. I don't believe we write
> classnames into our data.
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