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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-11918) Ozone: Encapsulate KSM metadata key for better (de)serialization
Date Fri, 23 Jun 2017 09:00:01 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Weiwei Yang resolved HDFS-11918.
--------------------------------
    Resolution: Later

> Ozone: Encapsulate KSM metadata key for better (de)serialization
> ----------------------------------------------------------------
>
>                 Key: HDFS-11918
>                 URL: https://issues.apache.org/jira/browse/HDFS-11918
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>            Priority: Critical
>         Attachments: HDFS-11918-HDFS-7240.001.patch
>
>
> There are multiple type of keys stored in KSM database
> # Volume Key
> # Bucket Key
> # Object Key
> # User Key
> Currently they are represented as plain string with some conventions, such as
> # /volume
> # /volume/bucket
> # /volume/bucket/key
> # $user
> this approach makes it so difficult to parse volume/bucket/keys from KSM database. Propose
to encapsulate these types of keys into protobuf messages, and take advantage of protobuf
to serialize(deserialize) classes to byte arrays (and vice versa).



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