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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1726) Migration to 0.20 looses index information from HTableDescriptor
Date Thu, 30 Jul 2009 23:13:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737351#action_12737351
] 

stack commented on HBASE-1726:
------------------------------

Leaving in 0.20.0.  I don't think this enough to sink the 0.20.0 RC.   Can apply to head of
the 0.20.0 branch and those who need it can update to catch this fixup.

> Migration to 0.20 looses index information from HTableDescriptor
> ----------------------------------------------------------------
>
>                 Key: HBASE-1726
>                 URL: https://issues.apache.org/jira/browse/HBASE-1726
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: contrib
>            Reporter: Clint Morgan
>             Fix For: 0.20.0
>
>
> In 0.19 index info was stored as a private field, and written specially in the Writable
impl of HTD. In 0.20 it is stored in the general values map under the key "INDEXES". So migration
needs to read in the old HTD format, and store the indexes in the values map. I wrote a quick
standalone thing to do this. Can someone point me where to plug this into general migration
process?

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