/**
* Licensed to Cloudera, Inc. under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Cloudera, Inc. 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.
*/
package com.cloudera.flume.master;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import java.io.IOException;
import org.apache.thrift.transport.TTransportException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.cloudera.flume.agent.DirectMasterRPC;
import com.cloudera.flume.agent.FlumeNode;
import com.cloudera.flume.agent.LivenessManager;
import com.cloudera.flume.agent.MasterRPC;
import com.cloudera.flume.conf.FlumeConfiguration;
import com.cloudera.flume.conf.FlumeSpecException;
import com.cloudera.flume.master.StatusManager.NodeState;
import com.cloudera.util.NetUtils;
import com.google.common.collect.Multimap;
public class TestLogicalNodeMapping {
FlumeMaster master = null;
FlumeConfiguration cfg;
@Before
public void setCfg() throws IOException {
// Isolate tests by only using simple cfg store
cfg = FlumeConfiguration.createTestableConfiguration();
cfg.set(FlumeConfiguration.MASTER_STORE, "memory");
cfg.set(FlumeConfiguration.WEBAPPS_PATH, "build/webapps");
}
@After
public void shutdownMaster() {
if (master != null) {
master.shutdown();
master = null;
}
}
/**
* Checks to make sure that nodes specified at the master get spawned at the
* node.
*
* Even though only two nodes are set, there should be three because we
* currently have an invariant where each physical node must have at least on
* logical node, which is named the same name as the physical node name.
*
* This may go away when we "bulkify" the node-master comms into one rpc call.
*
* @throws InterruptedException
*/
@Test
public void testMasterLogicalNodeCheckAutoLogicalNode() throws IOException,
InterruptedException {
FlumeMaster master = new FlumeMaster(cfg);
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "bar");
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "baz");
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
LivenessManager liveMan = node.getLivenessManager();
liveMan.checkLogicalNodes();
// the two added nodes, plus the always present physnode/logical
assertEquals(3, node.getLogicalNodeManager().getNodes().size());
}
/**
* Checks to make sure that nodes specified at the master get spawned at the
* node.
*
* @throws InterruptedException
*/
@Test
public void testMasterLogicalNodeSpawnedAtNode() throws IOException,
InterruptedException {
FlumeMaster master = new FlumeMaster(cfg);
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
master.getSpecMan().addLogicalNode(NetUtils.localhost(),
node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "bar");
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "baz");
LivenessManager liveMan = node.getLivenessManager();
liveMan.checkLogicalNodes();
// the two added nodes, plus the always present physnode/logical
assertEquals(3, node.getLogicalNodeManager().getNodes().size());
}
/**
* Checks to make sure that an unmapped node correctly transitions to
* DECOMMISSIONED
*/
@Test
public void testUnmappedLogicalNodeGetsDecommissioned() throws IOException,
InterruptedException {
FlumeMaster master = new FlumeMaster(cfg);
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
master.getSpecMan().addLogicalNode(node.getPhysicalNodeName(), "foo");
master.getStatMan().updateHeartbeatStatus(NetUtils.localhost(),
node.getPhysicalNodeName(), "foo", NodeState.ACTIVE, 10);
master.getSpecMan().unmapLogicalNode(NetUtils.localhost(), "foo");
master.getStatMan().checkup();
assertEquals(NodeState.DECOMMISSIONED, master.getStatMan()
.getNodeStatuses().get("foo").state);
master.getSpecMan().addLogicalNode(node.getPhysicalNodeName(), "foo");
master.getStatMan().updateHeartbeatStatus(NetUtils.localhost(),
node.getPhysicalNodeName(), "foo", NodeState.ACTIVE, 10);
master.getStatMan().checkup();
assertEquals(NodeState.ACTIVE, master.getStatMan().getNodeStatuses().get(
"foo").state);
}
/**
* Checks to make sure that nodes specified at the master get spawned at the
* node.
*
* @throws InterruptedException
*/
@Test
public void testMasterDecomission() throws IOException, InterruptedException {
FlumeMaster master = new FlumeMaster(cfg);
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
master.getSpecMan().addLogicalNode(NetUtils.localhost(),
node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "bar");
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "baz");
LivenessManager liveMan = node.getLivenessManager();
liveMan.checkLogicalNodes();
// the two added nodes, plus the always present physnode/logical
assertEquals(3, node.getLogicalNodeManager().getNodes().size());
}
@Test
public void testUnmapLogicalNode() throws IOException, InterruptedException {
// use the simple command manger, non-gossip ackmanager
FlumeMaster master = new FlumeMaster(new CommandManager(),
new ConfigManager(), new StatusManager(), new MasterAckManager(), cfg);
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
String local = NetUtils.localhost();
master.getSpecMan().addLogicalNode(local, node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(local, "bar");
master.getSpecMan().addLogicalNode(local, "baz");
LivenessManager liveMan = node.getLivenessManager();
liveMan.checkLogicalNodes();
assertEquals(local, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
master.getSpecMan().unmapLogicalNode(local, "bar");
liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
master.getSpecMan().unmapLogicalNode(local, "baz");
liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
master.getSpecMan().unmapLogicalNode(local, local);
liveMan.checkLogicalNodes();
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
}
@Test
public void testDuplicateSpawn() throws IOException, InterruptedException {
// use the simple command manger, non-gossip ackmanager
FlumeMaster master = new FlumeMaster(new CommandManager(),
new ConfigManager(), new StatusManager(), new MasterAckManager(), cfg);
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
String local = NetUtils.localhost();
// these are spawn commands
master.getSpecMan().addLogicalNode(local, node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(local, "bar");
master.getSpecMan().addLogicalNode(local, "baz");
// there should not be duplicates in the mapping table.
master.getSpecMan().addLogicalNode(local, node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(local, "bar");
master.getSpecMan().addLogicalNode(local, "baz");
Multimap<String, String> mapping = master.getSpecMan().getLogicalNodeMap();
assertEquals(3, mapping.size());
LivenessManager liveMan = node.getLivenessManager();
liveMan.checkLogicalNodes();
assertEquals(3, node.getLogicalNodeManager().getNodes().size());
}
@Test
public void testRemoveLogicalNode() throws IOException, FlumeSpecException,
InterruptedException {
// use the simple command manger, non-gossip ackmanager
FlumeMaster master = new FlumeMaster(new CommandManager(),
new ConfigManager(), new StatusManager(), new MasterAckManager(), cfg);
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
String local = NetUtils.localhost();
master.getSpecMan().addLogicalNode(local, node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(local, "bar");
master.getSpecMan().addLogicalNode(local, "baz");
master.getSpecMan().setConfig(local, "my-test-flow", "null", "null");
master.getSpecMan().setConfig("bar", "my-test-flow", "null", "null");
master.getSpecMan().setConfig("baz", "my-test-flow", "null", "null");
LivenessManager liveMan = node.getLivenessManager();
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertEquals(local, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNotNull(master.getSpecMan().getConfig("bar"));
assertNotNull(master.getSpecMan().getConfig("baz"));
assertNotNull(master.getSpecMan().getConfig(local));
master.getSpecMan().removeLogicalNode("bar");
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNotNull(master.getSpecMan().getConfig("baz"));
assertNotNull(master.getSpecMan().getConfig(local));
master.getSpecMan().removeLogicalNode("baz");
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNotNull(master.getSpecMan().getConfig(local));
master.getSpecMan().removeLogicalNode(local);
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
}
/**
* Checks to make sure that nodes specified at the master get spawned at the
* node.
*
* @throws InterruptedException
*/
@Test
public void testZKMasterDecomission() throws IOException,
TTransportException, InterruptedException {
// use the simple command manger, non-gossip ackmanager
cfg.set(FlumeConfiguration.MASTER_STORE, "zookeeper");
master = new FlumeMaster(new CommandManager(), new ConfigManager(),
new StatusManager(), new MasterAckManager(), cfg);
master.serve();
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
master.getSpecMan().addLogicalNode(NetUtils.localhost(),
node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "bar");
master.getSpecMan().addLogicalNode(NetUtils.localhost(), "baz");
LivenessManager liveMan = node.getLivenessManager();
liveMan.checkLogicalNodes();
// the two added nodes, plus the always present physnode/logical
assertEquals(3, node.getLogicalNodeManager().getNodes().size());
}
@Test
public void testZKUnmapLogicalNode() throws IOException, TTransportException,
InterruptedException {
// use the simple command manger, non-gossip ackmanager
cfg.set(FlumeConfiguration.MASTER_STORE, "zookeeper");
master = new FlumeMaster(new CommandManager(), new ConfigManager(),
new StatusManager(), new MasterAckManager(), cfg);
master.serve();
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
String local = NetUtils.localhost();
master.getSpecMan().addLogicalNode(local, node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(local, "bar");
master.getSpecMan().addLogicalNode(local, "baz");
LivenessManager liveMan = node.getLivenessManager();
liveMan.checkLogicalNodes();
assertEquals(local, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
master.getSpecMan().unmapLogicalNode(local, "bar");
liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
master.getSpecMan().unmapLogicalNode(local, "baz");
liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
master.getSpecMan().unmapLogicalNode(local, local);
liveMan.checkLogicalNodes();
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
}
@Test
public void testZKRemoveLogicalNode() throws IOException, FlumeSpecException,
TTransportException, InterruptedException {
// use the simple command manger, non-gossip ackmanager
cfg.set(FlumeConfiguration.MASTER_STORE, "zookeeper");
master = new FlumeMaster(new CommandManager(), new ConfigManager(),
new StatusManager(), new MasterAckManager(), cfg);
master.serve();
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
String local = NetUtils.localhost();
master.getSpecMan().addLogicalNode(local, node.getPhysicalNodeName());
master.getSpecMan().addLogicalNode(local, "bar");
master.getSpecMan().addLogicalNode(local, "baz");
master.getSpecMan().setConfig(local, "my-test-flow", "null", "null");
master.getSpecMan().setConfig("bar", "my-test-flow", "null", "null");
master.getSpecMan().setConfig("baz", "my-test-flow", "null", "null");
LivenessManager liveMan = node.getLivenessManager();
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertEquals(local, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNotNull(master.getSpecMan().getConfig("bar"));
assertNotNull(master.getSpecMan().getConfig("baz"));
assertNotNull(master.getSpecMan().getConfig(local));
master.getSpecMan().removeLogicalNode("bar");
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(local, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNotNull(master.getSpecMan().getConfig("baz"));
assertNotNull(master.getSpecMan().getConfig(local));
master.getSpecMan().removeLogicalNode("baz");
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNotNull(master.getSpecMan().getConfig(local));
master.getSpecMan().removeLogicalNode(local);
liveMan.heartbeatChecks();
// liveMan.checkLogicalNodes();
assertNull(master.getSpecMan().getConfig("bar"));
assertNull(master.getSpecMan().getConfig("baz"));
assertNull(master.getSpecMan().getConfig(local));
assertEquals(null, master.getSpecMan().getPhysicalNode("bar"));
assertEquals(null, master.getSpecMan().getPhysicalNode("baz"));
assertEquals(local, master.getSpecMan().getPhysicalNode(local));
}
}