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Date: Tue, 12 Jun 2007 12:20:26 -0700 (PDT)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Commented: (HADOOP-1469) Asynchronous table creation
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    [ https://issues.apache.org/jira/browse/HADOOP-1469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12503970 ] 

Hadoop QA commented on HADOOP-1469:
-----------------------------------

+1

http://issues.apache.org/jira/secure/attachment/12359101/hadoop1469.patch applied and successfully tested against trunk revision r546320.

Test results:   http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/272/testReport/
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/272/console

> Asynchronous table creation
> ---------------------------
>
>                 Key: HADOOP-1469
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1469
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: contrib/hbase
>    Affects Versions: 0.13.0
>            Reporter: James Kennedy
>            Assignee: stack
>            Priority: Minor
>         Attachments: hadoop1469.patch
>
>
> In some of my code i found it efficient to create a new table without immediately requiring (blocking for) the client to have references to it's HRegions.  Effectively this requires that the client update the table info only as needed.
> Can something like the following method to HClient be added?
> /**
> 	 * Creates a new table but does not block and wait for it to come online.
> 	 * 
> 	 * @param desc -
> 	 *            table descriptor for table
> 	 * 
> 	 * @throws IllegalArgumentException -
> 	 *             if the table name is reserved
> 	 * @throws MasterNotRunningException -
> 	 *             if master is not running
> 	 * @throws NoServerForRegionException -
> 	 *             if root region is not being served
> 	 * @throws IOException
> 	 */
> 	public synchronized void createTableAsync(HTableDescriptor desc)
> 			throws IOException {
> 		checkReservedTableName(desc.getName());
> 		checkMaster();
> 		try {
> 			this.master.createTable(desc);
> 		} catch (RemoteException e) {
> 			handleRemoteException(e);
> 		}
> 	}
> which is basically the same as createTable() except without the findServersForTable(desc.getName())  part.

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