org.apache.hadoop.hbase.DFSAbort.java Source code

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Here is the source code for org.apache.hadoop.hbase.DFSAbort.java

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/**
 * Copyright 2007 The Apache Software Foundation
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.hadoop.hbase;

import junit.framework.TestSuite;
import junit.textui.TestRunner;

import java.io.PrintWriter;
import org.apache.hadoop.util.ReflectionUtils;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Test ability of HBase to handle DFS failure
 */
public class DFSAbort extends HBaseClusterTestCase {
    private static final Log LOG = LogFactory.getLog(DFSAbort.class.getName());

    /** constructor */
    public DFSAbort() {
        super();

        // For less frequently updated regions flush after every 2 flushes
        conf.setInt("hbase.hregion.memcache.optionalflushcount", 2);
    }

    /** {@inheritDoc} */
    @Override
    public void setUp() throws Exception {
        try {
            super.setUp();
            HTableDescriptor desc = new HTableDescriptor(getName());
            desc.addFamily(new HColumnDescriptor(HConstants.COLUMN_FAMILY_STR));
            HBaseAdmin admin = new HBaseAdmin(conf);
            admin.createTable(desc);
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

    /**
     * @throws Exception
     */
    public void testDFSAbort() throws Exception {
        try {
            // By now the Mini DFS is running, Mini HBase is running and we have
            // created a table. Now let's yank the rug out from HBase
            cluster.getDFSCluster().shutdown();
            // Now wait for Mini HBase Cluster to shut down
            //      cluster.join();
            threadDumpingJoin();
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

    /**
     * @param args unused
     */
    public static void main(@SuppressWarnings("unused") String[] args) {
        TestRunner.run(new TestSuite(DFSAbort.class));
    }
}