org.apache.hadoop.hbase.ipc.TestRpcClientLeaks.java Source code

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Here is the source code for org.apache.hadoop.hbase.ipc.TestRpcClientLeaks.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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.ipc;

import java.io.IOException;
import java.net.Socket;
import java.net.SocketAddress;
import java.util.List;

import com.google.common.collect.Lists;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.RetriesExhaustedException;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.codec.Codec;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.ExpectedException;

import static org.apache.hadoop.hbase.HBaseTestingUtility.fam1;
import static org.junit.Assert.*;

@Category(SmallTests.class)
public class TestRpcClientLeaks {

    public static class MyRpcClientImpl extends RpcClientImpl {
        public static List<Socket> savedSockets = Lists.newArrayList();
        @Rule
        public ExpectedException thrown = ExpectedException.none();

        public MyRpcClientImpl(Configuration conf, String clusterId) {
            super(conf, clusterId);
        }

        public MyRpcClientImpl(Configuration conf, String clusterId, SocketAddress address) {
            super(conf, clusterId, address);
        }

        @Override
        protected Connection createConnection(ConnectionId remoteId, Codec codec, CompressionCodec compressor)
                throws IOException {
            return new Connection(remoteId, codec, compressor) {
                @Override
                protected synchronized void setupConnection() throws IOException {
                    super.setupConnection();
                    synchronized (savedSockets) {
                        savedSockets.add(socket);
                    }
                    throw new IOException(
                            "Sample exception for " + "verifying socket closure in case of exceptions.");
                }
            };
        }
    }

    private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();

    @BeforeClass
    public static void setup() throws Exception {
        UTIL.startMiniCluster();
    }

    @AfterClass
    public static void teardown() throws Exception {
        UTIL.shutdownMiniCluster();
    }

    public static final Log LOG = LogFactory.getLog(TestRpcClientLeaks.class);

    @Test(expected = RetriesExhaustedException.class)
    public void testSocketClosed() throws IOException, InterruptedException {
        String tableName = "testSocketClosed";
        TableName name = TableName.valueOf(tableName);
        UTIL.createTable(name, fam1).close();

        Configuration conf = new Configuration(UTIL.getConfiguration());
        conf.set(RpcClientFactory.CUSTOM_RPC_CLIENT_IMPL_CONF_KEY, MyRpcClientImpl.class.getName());
        conf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 2);
        Connection connection = ConnectionFactory.createConnection(conf);
        Table table = connection.getTable(TableName.valueOf(tableName));
        table.get(new Get("asd".getBytes()));
        connection.close();
        for (Socket socket : MyRpcClientImpl.savedSockets) {
            assertTrue("Socket + " + socket + " is not closed", socket.isClosed());
        }
    }
}