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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.ipc;
20  
21  import org.apache.hadoop.conf.Configuration;
22  import org.apache.hadoop.hbase.testclassification.MediumTests;
23  import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
24  import org.apache.hadoop.hbase.util.ManualEnvironmentEdge;
25  import org.junit.Assert;
26  import org.junit.Test;
27  import org.junit.experimental.categories.Category;
28  
29  import java.net.InetSocketAddress;
30  
31  @Category(MediumTests.class)   // Can't be small, we're playing with the EnvironmentEdge
32  public class TestHBaseClient {
33  
34    @Test
35    public void testFailedServer(){
36      ManualEnvironmentEdge ee = new ManualEnvironmentEdge();
37      EnvironmentEdgeManager.injectEdge(  ee );
38      FailedServers fs = new FailedServers(new Configuration());
39      Throwable testThrowable = new Throwable();//throwable already tested in TestFailedServers.java
40  
41      InetSocketAddress ia = InetSocketAddress.createUnresolved("bad", 12);
42      InetSocketAddress ia2 = InetSocketAddress.createUnresolved("bad", 12);  // same server as ia
43      InetSocketAddress ia3 = InetSocketAddress.createUnresolved("badtoo", 12);
44      InetSocketAddress ia4 = InetSocketAddress.createUnresolved("badtoo", 13);
45  
46  
47      Assert.assertFalse( fs.isFailedServer(ia) );
48  
49      fs.addToFailedServers(ia,testThrowable);
50      Assert.assertTrue( fs.isFailedServer(ia) );
51      Assert.assertTrue( fs.isFailedServer(ia2) );
52  
53      ee.incValue( 1 );
54      Assert.assertTrue( fs.isFailedServer(ia) );
55      Assert.assertTrue( fs.isFailedServer(ia2) );
56  
57      ee.incValue( RpcClient.FAILED_SERVER_EXPIRY_DEFAULT + 1 );
58      Assert.assertFalse( fs.isFailedServer(ia) );
59      Assert.assertFalse( fs.isFailedServer(ia2) );
60  
61      fs.addToFailedServers(ia,testThrowable);
62      fs.addToFailedServers(ia3,testThrowable);
63      fs.addToFailedServers(ia4,testThrowable);
64  
65      Assert.assertTrue( fs.isFailedServer(ia) );
66      Assert.assertTrue( fs.isFailedServer(ia2) );
67      Assert.assertTrue( fs.isFailedServer(ia3) );
68      Assert.assertTrue( fs.isFailedServer(ia4) );
69  
70      ee.incValue( RpcClient.FAILED_SERVER_EXPIRY_DEFAULT + 1 );
71      Assert.assertFalse( fs.isFailedServer(ia) );
72      Assert.assertFalse( fs.isFailedServer(ia2) );
73      Assert.assertFalse( fs.isFailedServer(ia3) );
74      Assert.assertFalse( fs.isFailedServer(ia4) );
75  
76  
77      fs.addToFailedServers(ia3,testThrowable);
78      Assert.assertFalse( fs.isFailedServer(ia4) );
79    }
80  }