package org.apache.helix.integration;
/*
* 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.
*/
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.apache.helix.TestHelper;
import org.apache.helix.controller.HelixControllerMain;
import org.apache.helix.manager.zk.ZKHelixAdmin;
import org.apache.helix.mock.participant.MockParticipant;
import org.apache.helix.mock.participant.MockParticipant.ErrTransition;
import org.apache.helix.tools.ClusterStateVerifier;
import org.testng.Assert;
import org.testng.annotations.Test;
public class TestErrorPartition extends ZkIntegrationTestBase
{
@Test()
public void testErrorPartition() throws Exception
{
String clusterName = getShortClassName();
MockParticipant[] participants = new MockParticipant[5];
System.out.println("START testErrorPartition() at "
+ new Date(System.currentTimeMillis()));
ZKHelixAdmin tool = new ZKHelixAdmin(_gZkClient);
TestHelper.setupCluster(clusterName,
ZK_ADDR,
12918,
"localhost",
"TestDB",
1,
10,
5,
3,
"MasterSlave",
true);
TestHelper.startController(clusterName,
"controller_0",
ZK_ADDR,
HelixControllerMain.STANDALONE);
for (int i = 0; i < 5; i++)
{
String instanceName = "localhost_" + (12918 + i);
if (i == 0)
{
Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>()
{
{
put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
}
};
participants[i] =
new MockParticipant(clusterName,
instanceName,
ZK_ADDR,
new ErrTransition(errPartitions));
}
else
{
participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
}
participants[i].syncStart();
// new Thread(participants[i]).start();
}
Map<String, Map<String, String>> errStates =
new HashMap<String, Map<String, String>>();
errStates.put("TestDB0", new HashMap<String, String>());
errStates.get("TestDB0").put("TestDB0_4", "localhost_12918");
boolean result =
ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName,
errStates));
Assert.assertTrue(result);
Map<String, Set<String>> errorStateMap = new HashMap<String, Set<String>>()
{
{
put("TestDB0_4", TestHelper.setOf("localhost_12918"));
}
};
// verify "TestDB0_0", "localhost_12918" is in ERROR state
TestHelper.verifyState(clusterName, ZK_ADDR, errorStateMap, "ERROR");
// disable a partition on a node with error state
tool.enablePartition(false, clusterName, "localhost_12918", "TestDB0", Arrays.asList("TestDB0_4"));
result =
ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName,
errStates));
Assert.assertTrue(result);
TestHelper.verifyState(clusterName, ZK_ADDR, errorStateMap, "ERROR");
// disable a node with error state
tool.enableInstance(clusterName, "localhost_12918", false);
result =
ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName,
errStates));
Assert.assertTrue(result);
// make sure after restart stale ERROR state is gone
tool.enablePartition(true, clusterName, "localhost_12918", "TestDB0", Arrays.asList("TestDB0_4"));
tool.enableInstance(clusterName, "localhost_12918", true);
participants[0].syncStop();
result =
ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
participants[0] = new MockParticipant(clusterName, "localhost_12918", ZK_ADDR);
new Thread(participants[0]).start();
result =
ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
System.out.println("END testErrorPartition() at "
+ new Date(System.currentTimeMillis()));
}
}