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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8853) Erasure Coding: Provide ECSchema validation when setting EC policy
Date Thu, 10 Sep 2015 23:30:45 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhe Zhang updated HDFS-8853:
----------------------------
    Summary: Erasure Coding: Provide ECSchema validation when setting EC policy  (was: Erasure
Coding: Provide ECSchema validation when creating ECZone)

> Erasure Coding: Provide ECSchema validation when setting EC policy
> ------------------------------------------------------------------
>
>                 Key: HDFS-8853
>                 URL: https://issues.apache.org/jira/browse/HDFS-8853
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Rakesh R
>            Assignee: J.Andreina
>         Attachments: HDFS-8853-HDFS-7285-01.patch, HDFS-8853-HDFS-7285-05.patch, HDFS-8853-HDFS-7285-06.patch,
HDFS-8853-HDFS-7285-merge-02.patch, HDFS-8853-HDFS-7285-merge-03.patch, HDFS-8853-HDFS-7285-merge-04.patch
>
>
> Presently the {{DFS#createErasureCodingZone(path, ecSchema, cellSize)}} doesn't have
any validation that the given {{ecSchema}} is available in {{ErasureCodingSchemaManager#activeSchemas}}
list. Now, if it doesn't exists then will create the ECZone with {{null}} schema. IMHO we
could improve this by doing necessary basic sanity checks.



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