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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDDS-284) CRC for ChunksData
Date Thu, 04 Oct 2018 22:31:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anu Engineer updated HDDS-284:
------------------------------
    Target Version/s: 0.4.0
       Fix Version/s:     (was: 0.3.0)

> CRC for ChunksData
> ------------------
>
>                 Key: HDDS-284
>                 URL: https://issues.apache.org/jira/browse/HDDS-284
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Bharat Viswanadham
>            Assignee: Bharat Viswanadham
>            Priority: Major
>         Attachments: HDDS-284.00.patch, HDDS-284.01.patch, HDDS-284.02.patch, HDDS-284.03.patch,
HDDS-284.04.patch, Interleaving CRC and Error Detection for Containers.pdf
>
>
> This Jira is to add CRC for chunks data.
>  
>  
> Right now a Chunk Info structure looks like this:
>  
> _message ChunkInfo {_
>  _required string chunkName =_ _1__;_
> _required uint64 offset =_ _2__;_
> _required uint64 len =_ _3__;_
> _optional string checksum =_ _4__;_
> _repeated KeyValue metadata =_ _5__;_
> _}_
>  
> _Proposal is to change ChunkInfo structure as below:_
>  
> _message ChunkInfo {_
>  _required string chunkName =_ _1__;_
>  _required uint64 offset =_ _2__;_
>  _required uint64 len =_ _3__;_
>  _optional bytes checksum =_ _4__;_
>  _optional CRCType checksumType =_ _5__;_
>  _optional string legacyMetadata =_ _6__;_
>  _optional string legacyData =_ _7__;_
>  _repeated KeyValue metadata =_ _8__;_
> _}_
>  
> _Instead of changing disk format, we put the checksum, checksumtype and legacy data fields
in to chunkInfo._
>  



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