initializing a new HTable object against a nonexistent table throws a
NoServerForRegionException instead of a TableNotFoundException when a different
table has been created previously
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Key: HADOOP-2579
URL: https://issues.apache.org/jira/browse/HADOOP-2579
Project: Hadoop
Issue Type: Bug
Components: contrib/hbase
Reporter: Peter Dolan
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"));
} 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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