package org.apache.helix.integration;
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* to you under the Apache License, Version 2.0 (the
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import java.net.URL;
import java.util.Arrays;
import java.util.Date;
import java.util.Map;
import org.apache.helix.HelixAdmin;
import org.apache.helix.HelixDataAccessor;
import org.apache.helix.TestHelper;
import org.apache.helix.ZNRecord;
import org.apache.helix.ZkUnitTestBase;
import org.apache.helix.PropertyKey.Builder;
import org.apache.helix.manager.zk.ZKHelixAdmin;
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.model.ExternalView;
import org.apache.helix.model.IdealState;
import org.apache.helix.model.IdealState.IdealStateModeProperty;
import org.apache.helix.model.InstanceConfig;
import org.apache.helix.model.StateModelDefinition;
import org.apache.helix.tools.ClusterStateVerifier;
import org.apache.helix.tools.StateModelConfigGenerator;
import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier;
import org.testng.Assert;
import org.testng.annotations.Test;
// Helix-50: integration test for generate message based on state priority
public class TestInvalidAutoIdealState extends ZkUnitTestBase {
// TODO Disable this test, need refactor it for testing message generation based on state priority
// @Test
void testInvalidReplica2() throws Exception
{
HelixAdmin admin = new ZKHelixAdmin(ZK_ADDR);
// create cluster
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
String db = "TestDB";
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
// System.out.println("Creating cluster: " + clusterName);
admin.addCluster(clusterName, true);
// add MasterSlave state mode definition
admin.addStateModelDef(clusterName, "MasterSlave", new StateModelDefinition(
StateModelConfigGenerator.generateConfigForMasterSlave()));
// Add nodes to the cluster
int n = 3;
System.out.println("Adding " + n + " participants to the cluster");
for (int i = 0; i < n; i++) {
int port = 12918 + i;
InstanceConfig instanceConfig = new InstanceConfig("localhost_" + port);
instanceConfig.setHostName("localhost");
instanceConfig.setPort("" + port);
instanceConfig.setInstanceEnabled(true);
admin.addInstance(clusterName, instanceConfig);
// System.out.println("\t Added participant: " + instanceConfig.getInstanceName());
}
// construct ideal-state manually
IdealState idealState = new IdealState(db);
idealState.setIdealStateMode(IdealStateModeProperty.AUTO.toString());
idealState.setNumPartitions(2);
idealState.setReplicas("" + 2); // should be 3
idealState.setStateModelDefRef("MasterSlave");
idealState.getRecord().setListField("TestDB_0", Arrays.asList("localhost_12918", "localhost_12919", "localhost_12920"));
idealState.getRecord().setListField("TestDB_1", Arrays.asList("localhost_12919", "localhost_12918", "localhost_12920"));
admin.setResourceIdealState(clusterName, "TestDB", idealState);
// start participants
MockParticipant[] participants = new MockParticipant[n];
for (int i = 0; i < n; i++)
{
String instanceName = "localhost_" + (12918 + i);
participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
participants[i].syncStart();
}
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// make sure localhost_12919 is master on TestDB_1
HelixDataAccessor accessor = controller.getManager().getHelixDataAccessor();
Builder keyBuilder = accessor.keyBuilder();
ExternalView extView = accessor.getProperty(keyBuilder.externalView(db));
Map<String, String> stateMap = extView.getStateMap(db + "_1");
Assert.assertEquals(stateMap.get("localhost_12919"), "MASTER",
"localhost_12919 should be MASTER even though replicas is set to 2, since we generate message based on target-state priority");
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
}