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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11920) Ozone : add key partition
Date Fri, 28 Jul 2017 00:34:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chen Liang updated HDFS-11920:
    Attachment: HDFS-11920-HDFS-7240.008.patch

Some of the failed tests are related, fixed in v008 patch. To any reviewer, v008 patch is
almost identical to v007, only except for added the following change:
1. Changed the internal stream of OzoneInputStream from ChunkInputStream to ChunkGroupInputStream
2. added an entry to ozone-default.xml
3. KeyHandler's putKey will specify the size of the key based on the data.

> Ozone : add key partition
> -------------------------
>                 Key: HDFS-11920
>                 URL: https://issues.apache.org/jira/browse/HDFS-11920
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>         Attachments: HDFS-11920-HDFS-7240.001.patch, HDFS-11920-HDFS-7240.002.patch,
HDFS-11920-HDFS-7240.003.patch, HDFS-11920-HDFS-7240.004.patch, HDFS-11920-HDFS-7240.005.patch,
HDFS-11920-HDFS-7240.006.patch, HDFS-11920-HDFS-7240.007.patch, HDFS-11920-HDFS-7240.008.patch
> Currently, each key corresponds to one single SCM block, and putKey/getKey writes/reads
to this single SCM block. This works fine for keys with reasonably small data size. However
if the data is too huge, (e.g. not even fits into a single container), then we need to be
able to partition the key data into multiple blocks, each in one container. This JIRA changes
the key-related classes to support this.

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