package org.apache.helix.integration;
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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.
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import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.I0Itec.zkclient.DataUpdater;
import org.I0Itec.zkclient.IZkChildListener;
import org.I0Itec.zkclient.IZkDataListener;
import org.apache.helix.BaseDataAccessor;
import org.apache.helix.HelixDataAccessor;
import org.apache.helix.TestHelper;
import org.apache.helix.ZNRecord;
import org.apache.helix.PropertyKey.Builder;
import org.apache.helix.manager.zk.ZKHelixDataAccessor;
import org.apache.helix.manager.zk.ZkBaseDataAccessor;
import org.apache.helix.mock.controller.ClusterController;
import org.apache.helix.mock.participant.MockParticipant;
import org.apache.helix.mock.participant.ErrTransition;
import org.apache.helix.model.ExternalView;
import org.apache.helix.model.InstanceConfig;
import org.apache.helix.model.builder.CustomModeISBuilder;
import org.apache.helix.model.builder.IdealStateBuilder;
import org.apache.helix.tools.ClusterSetup;
import org.apache.helix.tools.ClusterStateVerifier;
import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier;
import org.apache.zookeeper.data.Stat;
import org.testng.Assert;
import org.testng.annotations.Test;
public class TestDrop extends ZkIntegrationTestBase
{
@Test
public void testDropErrorPartitionAutoIS() throws Exception
{
// Logger.getRootLogger().setLevel(Level.INFO);
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
final int n = 5;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
MockParticipant[] participants = new MockParticipant[n];
TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port
"localhost", // participant name prefix
"TestDB", // resource name prefix
1, // resources
10, // partitions per resource
n, // number of nodes
3, // replicas
"MasterSlave",
true); // do rebalance
// start controller
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
// start participants
Map<String, Set<String>> errTransitions = new HashMap<String, Set<String>>();
errTransitions.put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
errTransitions.put("OFFLINE-SLAVE", TestHelper.setOf("TestDB0_8"));
for (int i = 0; i < n; i++)
{
String instanceName = "localhost_" + (12918 + i);
if (i == 0)
{
participants[i] =
new MockParticipant(clusterName,
instanceName,
ZK_ADDR,
new ErrTransition(errTransitions));
}
else
{
participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
}
participants[i].syncStart();
}
Map<String, Map<String, String>> errStateMap =
new HashMap<String, Map<String, String>>();
errStateMap.put("TestDB0", new HashMap<String, String>());
errStateMap.get("TestDB0").put("TestDB0_4", "localhost_12918");
errStateMap.get("TestDB0").put("TestDB0_8", "localhost_12918");
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName,
errStateMap));
Assert.assertTrue(result);
// drop resource containing error partitions should drop the partition successfully
ClusterSetup.processCommandLineArgs(new String[]{"--zkSvr", ZK_ADDR, "--dropResource", clusterName, "TestDB0"});
// make sure TestDB0_4 and TestDB0_8 partitions are dropped
result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// clean up
// wait for all zk callbacks done
// Thread.sleep(1000);
// controller.syncStop();
// for (int i = 0; i < 5; i++)
// {
// participants[i].syncStop();
// }
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
@Test
public void testDropErrorPartitionFailedAutoIS() throws Exception
{
// Logger.getRootLogger().setLevel(Level.INFO);
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
final int n = 5;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
MockParticipant[] participants = new MockParticipant[n];
TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port
"localhost", // participant name prefix
"TestDB", // resource name prefix
1, // resources
8, // partitions per resource
n, // number of nodes
3, // replicas
"MasterSlave",
true); // do rebalance
// start controller
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
// start participants
Map<String, Set<String>> errTransitions = new HashMap<String, Set<String>>();
errTransitions.put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
errTransitions.put("ERROR-DROPPED", TestHelper.setOf("TestDB0_4"));
for (int i = 0; i < n; i++)
{
String instanceName = "localhost_" + (12918 + i);
if (i == 0)
{
participants[i] =
new MockParticipant(clusterName,
instanceName,
ZK_ADDR,
new ErrTransition(errTransitions));
}
else
{
participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
}
participants[i].syncStart();
}
Map<String, Map<String, String>> errStateMap =
new HashMap<String, Map<String, String>>();
errStateMap.put("TestDB0", new HashMap<String, String>());
errStateMap.get("TestDB0").put("TestDB0_4", "localhost_12918");
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName,
errStateMap));
Assert.assertTrue(result);
// drop resource containing error partitions should invoke error->dropped transition
// if error happens during error->dropped transition, partition should be disabled
ClusterSetup.processCommandLineArgs(new String[]{"--zkSvr", ZK_ADDR, "--dropResource", clusterName, "TestDB0"});
// make sure TestDB0_4 stay in ERROR state and is disabled
result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName,
errStateMap));
Assert.assertTrue(result);
ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
Builder keyBuilder = accessor.keyBuilder();
InstanceConfig config = accessor.getProperty(keyBuilder.instanceConfig("localhost_12918"));
List<String> disabledPartitions = config.getDisabledPartitions();
// System.out.println("disabledPartitions: " + disabledPartitions);
Assert.assertEquals(disabledPartitions.size(), 1, "TestDB0_4 should be disabled");
Assert.assertEquals(disabledPartitions.get(0), "TestDB0_4");
// clean up
// wait for all zk callbacks done
// Thread.sleep(1000);
// controller.syncStop();
// for (int i = 0; i < 5; i++)
// {
// participants[i].syncStop();
// }
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
@Test
public void testDropErrorPartitionCustomIS() throws Exception
{
// Logger.getRootLogger().setLevel(Level.INFO);
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
final int n = 2;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
MockParticipant[] participants = new MockParticipant[n];
TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port
"localhost", // participant name prefix
"TestDB", // resource name prefix
1, // resources
2, // partitions per resource
n, // number of nodes
2, // replicas
"MasterSlave",
false); // do rebalance
// set custom ideal-state
CustomModeISBuilder isBuilder = new CustomModeISBuilder("TestDB0");
isBuilder.setNumPartitions(2);
isBuilder.setNumReplica(2);
isBuilder.setStateModel("MasterSlave");
isBuilder.assignInstanceAndState("TestDB0_0", "localhost_12918", "MASTER");
isBuilder.assignInstanceAndState("TestDB0_0", "localhost_12919", "SLAVE");
isBuilder.assignInstanceAndState("TestDB0_1", "localhost_12919", "MASTER");
isBuilder.assignInstanceAndState("TestDB0_1", "localhost_12918", "SLAVE");
HelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName,
new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
Builder keyBuiler = accessor.keyBuilder();
accessor.setProperty(keyBuiler.idealStates("TestDB0"), isBuilder.build());
// start controller
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
// start participants
Map<String, Set<String>> errTransitions = new HashMap<String, Set<String>>();
errTransitions.put("SLAVE-MASTER", TestHelper.setOf("TestDB0_0"));
for (int i = 0; i < n; i++)
{
String instanceName = "localhost_" + (12918 + i);
if (i == 0)
{
participants[i] =
new MockParticipant(clusterName,
instanceName,
ZK_ADDR,
new ErrTransition(errTransitions));
}
else
{
participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
}
participants[i].syncStart();
}
Map<String, Map<String, String>> errStateMap =
new HashMap<String, Map<String, String>>();
errStateMap.put("TestDB0", new HashMap<String, String>());
errStateMap.get("TestDB0").put("TestDB0_0", "localhost_12918");
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName,
errStateMap));
Assert.assertTrue(result);
// drop resource containing error partitions should drop the partition successfully
ClusterSetup.processCommandLineArgs(new String[]{"--zkSvr", ZK_ADDR, "--dropResource", clusterName, "TestDB0"});
// make sure TestDB0_0 partition is dropped
result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result, "Should be empty exeternal-view");
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
@Test
public void testDropSchemataResource() throws Exception
{
// Logger.getRootLogger().setLevel(Level.INFO);
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
final int n = 5;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
MockParticipant[] participants = new MockParticipant[n];
TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port
"localhost", // participant name prefix
"TestDB", // resource name prefix
1, // resources
8, // partitions per resource
n, // number of nodes
3, // replicas
"MasterSlave",
true); // do rebalance
// start controller
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
// start participants
for (int i = 0; i < n; i++)
{
String instanceName = "localhost_" + (12918 + i);
participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
participants[i].syncStart();
}
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// add schemata resource group
String command = "--zkSvr " + ZK_ADDR +" --addResource " + clusterName +
" schemata 1 STORAGE_DEFAULT_SM_SCHEMATA";
ClusterSetup.processCommandLineArgs(command.split("\\s+"));
command = "--zkSvr " + ZK_ADDR +" --rebalance " + clusterName +
" schemata " + n;
ClusterSetup.processCommandLineArgs(command.split("\\s+"));
result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// drop schemata resource group
System.out.println("Dropping schemata resource group...");
command = "--zkSvr " + ZK_ADDR +" --dropResource " + clusterName +
" schemata";
ClusterSetup.processCommandLineArgs(command.split("\\s+"));
result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// make sure schemata external view is empty
ZkBaseDataAccessor<ZNRecord> baseAccessor =
new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
Builder keyBuilder = accessor.keyBuilder();
ExternalView extView = accessor.getProperty(keyBuilder.externalView("schemata"));
Assert.assertEquals(extView.getPartitionSet().size(), 0, "schemata externalView should be empty but was \"" + extView + "\"");
// clean up
// wait for all zk callbacks done
Thread.sleep(1000);
controller.syncStop();
for (int i = 0; i < 5; i++)
{
participants[i].syncStop();
}
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
}