org.apache.hadoop.hbase.client.TestAsyncClusterAdminApi2.java Source code

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Here is the source code for org.apache.hadoop.hbase.client.TestAsyncClusterAdminApi2.java

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/**
 * 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.client;

import static org.apache.hadoop.hbase.client.AsyncProcess.START_LOG_ERRORS_AFTER_COUNT_KEY;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.concurrent.TimeUnit;
import org.apache.commons.io.IOUtils;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.master.HMaster;
import org.apache.hadoop.hbase.regionserver.HRegionServer;
import org.apache.hadoop.hbase.testclassification.ClientTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;

/**
 * Only used to test stopMaster/stopRegionServer/shutdown methods.
 */
@Category({ ClientTests.class, MediumTests.class })
public class TestAsyncClusterAdminApi2 extends TestAsyncAdminBase {

    @ClassRule
    public static final HBaseClassTestRule CLASS_RULE = HBaseClassTestRule
            .forClass(TestAsyncClusterAdminApi2.class);

    @BeforeClass
    public static void setUpBeforeClass() throws Exception {
        TEST_UTIL.getConfiguration().setInt(HConstants.HBASE_RPC_TIMEOUT_KEY, 60000);
        TEST_UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_OPERATION_TIMEOUT, 120000);
        TEST_UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 2);
        TEST_UTIL.getConfiguration().setInt(START_LOG_ERRORS_AFTER_COUNT_KEY, 0);
    }

    @AfterClass
    public static void tearDownAfterClass() throws Exception {
        // do nothing
    }

    @Before
    @Override
    public void setUp() throws Exception {
        TEST_UTIL.startMiniCluster(3);
        ASYNC_CONN = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get();
        admin = ASYNC_CONN.getAdmin();
    }

    @After
    @Override
    public void tearDown() throws Exception {
        IOUtils.closeQuietly(ASYNC_CONN);
        TEST_UTIL.shutdownMiniCluster();
    }

    @Test
    public void testStop() throws Exception {
        HRegionServer rs = TEST_UTIL.getMiniHBaseCluster().getRegionServer(0);
        assertFalse(rs.isStopped());
        admin.stopRegionServer(rs.getServerName()).join();
        assertTrue(rs.isStopped());

        HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
        assertFalse(master.isStopped());
        admin.stopMaster().join();
        assertTrue(master.isStopped());
    }

    @Test
    public void testShutdown() throws Exception {
        TEST_UTIL.getMiniHBaseCluster().getMasterThreads().forEach(thread -> {
            assertFalse(thread.getMaster().isStopped());
        });
        TEST_UTIL.getMiniHBaseCluster().getRegionServerThreads().forEach(thread -> {
            assertFalse(thread.getRegionServer().isStopped());
        });

        admin.shutdown().join();
        TEST_UTIL.getMiniHBaseCluster().getMasterThreads().forEach(thread -> {
            while (!thread.getMaster().isStopped()) {
                trySleep(100, TimeUnit.MILLISECONDS);
            }
        });
        TEST_UTIL.getMiniHBaseCluster().getRegionServerThreads().forEach(thread -> {
            while (!thread.getRegionServer().isStopped()) {
                trySleep(100, TimeUnit.MILLISECONDS);
            }
        });
    }

    private void trySleep(long timeout, TimeUnit unit) {
        try {
            unit.sleep(timeout);
        } catch (InterruptedException e) {
        }
    }
}