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Posted to dev@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2008/05/13 22:29:55 UTC

[jira] Commented: (HBASE-626) Use Visitor pattern in MetaRegion to reduce code clones in HTable and HConnectionManager

    [ https://issues.apache.org/jira/browse/HBASE-626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596524#action_12596524 ] 

Jean-Daniel Cryans commented on HBASE-626:
------------------------------------------

Should be in a MetaTable class, not in MetaRegion, since we scan the whole table.

> Use Visitor pattern in MetaRegion to reduce code clones in HTable and HConnectionManager
> ----------------------------------------------------------------------------------------
>
>                 Key: HBASE-626
>                 URL: https://issues.apache.org/jira/browse/HBASE-626
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: master
>            Reporter: Jean-Daniel Cryans
>            Priority: Minor
>             Fix For: 0.2.0
>
>
> HTable and HConnectionManager.TableServers both scan the meta region in the same way (but the later also retry one time if it fails). A Visitor pattern should be used in a new scanning method in MetaRegion to accept visitors that gather information such as region names for a table or the list of all tables.

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