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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12213) HFileBlock backed by Array of ByteBuffers
Date Fri, 17 Jul 2015 04:53:05 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ramkrishna.s.vasudevan updated HBASE-12213:
-------------------------------------------
    Attachment: HBASE-12213_final.patch

Patch for one QA run before committing. In case there are any warnings.

> HFileBlock backed by Array of ByteBuffers
> -----------------------------------------
>
>                 Key: HBASE-12213
>                 URL: https://issues.apache.org/jira/browse/HBASE-12213
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver, Scanners
>            Reporter: Anoop Sam John
>            Assignee: ramkrishna.s.vasudevan
>         Attachments: HBASE-12213_1.patch, HBASE-12213_10_withBBI.patch, HBASE-12213_11_withBBI.patch,
HBASE-12213_12_withBBI.patch, HBASE-12213_12_withBBI.patch, HBASE-12213_13_withBBI.patch,
HBASE-12213_14_withBBI.patch, HBASE-12213_2.patch, HBASE-12213_4.patch, HBASE-12213_8_withBBI.patch,
HBASE-12213_9_withBBI.patch, HBASE-12213_final.patch, HBASE-12213_jmh.zip
>
>
> In L2 cache (offheap) an HFile block might have been cached into multiple chunks of buffers.
If HFileBlock need single BB, we will end up in recreation of bigger BB and copying. Instead
we can make HFileBlock to serve data from an array of BBs.



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