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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15296) Break out writer and reader from StoreFile
Date Sat, 28 May 2016 04:00:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15305154#comment-15305154
] 

stack commented on HBASE-15296:
-------------------------------

Where is 'void foo(A);' in the refactor? (I am looking at your notes above, not at the patch;
I am wondering if there a misedit in your explanation?)


> Break out writer and reader from StoreFile
> ------------------------------------------
>
>                 Key: HBASE-15296
>                 URL: https://issues.apache.org/jira/browse/HBASE-15296
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Appy
>            Assignee: Appy
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15296-branch-1-v1.patch, HBASE-15296-branch-1.1.patch, HBASE-15296-branch-1.2.patch,
HBASE-15296-branch-1.patch, HBASE-15296-branch-1.patch, HBASE-15296-master-v2.patch, HBASE-15296-master-v3.patch,
HBASE-15296-master-v4.patch, HBASE-15296-master-v5.patch, HBASE-15296-master.patch
>
>
> StoreFile.java is trending to become a monolithic class, it's ~1800 lines. Would it make
sense to break out reader and writer (~500 lines each) into separate files.
> We are doing so many different things in a single class: comparators, reader, writer,
other stuff; and it hurts readability a lot, to the point that just reading through a piece
of code require scrolling up and down to see which level (reader/writer/base class level)
it belongs to. These small-small things really don't help while trying to understanding the
code. There are good reasons we don't do these often (affects existing patches, needs to be
done for all branches, etc). But this and a few other classes can really use a single iteration
of refactoring to make things a lot better.



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