001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.ipc;
019
020import java.net.InetSocketAddress;
021import org.apache.hadoop.conf.Configuration;
022import org.apache.hadoop.hbase.HBaseClassTestRule;
023import org.apache.hadoop.hbase.testclassification.MediumTests;
024import org.apache.hadoop.hbase.testclassification.RPCTests;
025import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
026import org.apache.hadoop.hbase.util.ManualEnvironmentEdge;
027import org.junit.Assert;
028import org.junit.ClassRule;
029import org.junit.Test;
030import org.junit.experimental.categories.Category;
031
032@Category({RPCTests.class, MediumTests.class})   // Can't be small, we're playing with the EnvironmentEdge
033public class TestHBaseClient {
034
035  @ClassRule
036  public static final HBaseClassTestRule CLASS_RULE =
037      HBaseClassTestRule.forClass(TestHBaseClient.class);
038
039  @Test
040  public void testFailedServer(){
041    ManualEnvironmentEdge ee = new ManualEnvironmentEdge();
042    EnvironmentEdgeManager.injectEdge(  ee );
043    FailedServers fs = new FailedServers(new Configuration());
044    Throwable testThrowable = new Throwable();//throwable already tested in TestFailedServers.java
045
046    InetSocketAddress ia = InetSocketAddress.createUnresolved("bad", 12);
047    InetSocketAddress ia2 = InetSocketAddress.createUnresolved("bad", 12);  // same server as ia
048    InetSocketAddress ia3 = InetSocketAddress.createUnresolved("badtoo", 12);
049    InetSocketAddress ia4 = InetSocketAddress.createUnresolved("badtoo", 13);
050
051
052    Assert.assertFalse( fs.isFailedServer(ia) );
053
054    fs.addToFailedServers(ia,testThrowable);
055    Assert.assertTrue( fs.isFailedServer(ia) );
056    Assert.assertTrue( fs.isFailedServer(ia2) );
057
058    ee.incValue( 1 );
059    Assert.assertTrue( fs.isFailedServer(ia) );
060    Assert.assertTrue( fs.isFailedServer(ia2) );
061
062    ee.incValue( RpcClient.FAILED_SERVER_EXPIRY_DEFAULT + 1 );
063    Assert.assertFalse( fs.isFailedServer(ia) );
064    Assert.assertFalse( fs.isFailedServer(ia2) );
065
066    fs.addToFailedServers(ia,testThrowable);
067    fs.addToFailedServers(ia3,testThrowable);
068    fs.addToFailedServers(ia4,testThrowable);
069
070    Assert.assertTrue( fs.isFailedServer(ia) );
071    Assert.assertTrue( fs.isFailedServer(ia2) );
072    Assert.assertTrue( fs.isFailedServer(ia3) );
073    Assert.assertTrue( fs.isFailedServer(ia4) );
074
075    ee.incValue( RpcClient.FAILED_SERVER_EXPIRY_DEFAULT + 1 );
076    Assert.assertFalse( fs.isFailedServer(ia) );
077    Assert.assertFalse( fs.isFailedServer(ia2) );
078    Assert.assertFalse( fs.isFailedServer(ia3) );
079    Assert.assertFalse( fs.isFailedServer(ia4) );
080
081
082    fs.addToFailedServers(ia3,testThrowable);
083    Assert.assertFalse( fs.isFailedServer(ia4) );
084  }
085}