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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2579) initializing a new HTable object against a nonexistent table throws a NoServerForRegionException instead of a TableNotFoundException when a different table has been created previously
Date Tue, 15 Jan 2008 09:53:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12559000#action_12559000
] 

Hadoop QA commented on HADOOP-2579:
-----------------------------------

+1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12373119/2579.patch
against trunk revision r612025.

    @author +1.  The patch does not contain any @author tags.

    javadoc +1.  The javadoc tool did not generate any warning messages.

    javac +1.  The applied patch does not generate any new compiler warnings.

    findbugs +1.  The patch does not introduce any new Findbugs warnings.

    core tests +1.  The patch passed core unit tests.

    contrib tests +1.  The patch passed contrib unit tests.

Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1591/testReport/
Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1591/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1591/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1591/console

This message is automatically generated.

> initializing a new HTable object against a nonexistent table throws a NoServerForRegionException
instead of a TableNotFoundException when a different table has been created previously
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-2579
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2579
>             Project: Hadoop
>          Issue Type: Bug
>          Components: contrib/hbase
>            Reporter: Peter Dolan
>         Attachments: 2579.patch
>
>
> When a table has been created, initializing a new HTable object for that table works
properly, as expected, but initializing a new HTable against a nonexistent table in the same
context (a table exists), a NoServerForRegionException is thrown instead of TableNotFoundException,
as would be expected.
> If there haven't been any tables created, initializing a new HTable object against 'nosuchTable'
throws TableNotFoundException, as expected.
> Running the following TestCase exposes the issue on my machine.
> {code:title=TestHTable.java|borderStyle=solid}
> package org.apache.hadoop.hbase;
> import java.io.IOException;
> import org.apache.hadoop.io.Text;
> /**
>  * Tests HTable
>  */
> public class TestHTable extends HBaseClusterTestCase implements HConstants {
>   public void testTableNotFoundExceptionWithoutAnyTables() {
>     try {
>       new HTable(conf, new Text("notATable"));
>       fail("Should have thrown a TableNotFoundException");
>     } catch (TableNotFoundException e) {
>       // expected
>     } catch (IOException e) {
>       e.printStackTrace();
>       fail("Should have thrown a TableNotFoundException instead of a " +
>           e.getClass());
>     }
>   }
>   
>   public void testTableNotFoundExceptionWithATable() {
>     try {
>       HColumnDescriptor column =
>         new HColumnDescriptor(COLUMN_FAMILY.toString());
>       HBaseAdmin admin = new HBaseAdmin(conf);
>       HTableDescriptor testTableADesc =
>         new HTableDescriptor("table");
>       testTableADesc.addFamily(column);
>       admin.createTable(testTableADesc);
>       // This should throw a TableNotFoundException, it has not been created
>       new HTable(conf, new Text("notATable"));
>       
>       fail("Should have thrown a TableNotFoundException");
>     } catch (TableNotFoundException e) {
>       // expected
>     } catch (IOException e) {
>       e.printStackTrace();
>       fail("Should have thrown a TableNotFoundException instead of a " +
>           e.getClass());
>     }
>   }
> }
> {code}

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