@Test
public void testCheckup() throws IOException {
MockClock clk = new MockClock(0);
Clock.setClock(clk);
StatusManager stats = new StatusManager();
// foo is in state HELLO and has configuration numbered 0
long prev = Clock.unixTime();
boolean needsRefresh =
stats.updateHeartbeatStatus(NetUtils.localhost(), "physnode", "foo", NodeState.HELLO, 0);
LOG.info(stats.getNodeStatuses());
assertTrue(needsRefresh);
// move forward in time, but not far enough to trigger being lost
clk.forward(FlumeConfiguration.get().getConfigHeartbeatPeriod() * 5);
stats.checkup();
StatusManager.NodeStatus ns = stats.getNodeStatuses().get("foo");
assertEquals(0, ns.version);
assertTrue(prev <= ns.lastseen);
assertEquals(NodeState.HELLO, ns.state);
prev = ns.lastseen;
clk.forward(FlumeConfiguration.get().getConfigHeartbeatPeriod() * 20);
stats.checkup();
ns = stats.getNodeStatuses().get("foo");
assertEquals(0, ns.version);
assertTrue(prev <= ns.lastseen);
assertEquals(NodeState.LOST, ns.state);
prev = ns.lastseen;
LOG.info(ns.toString());
LOG.info(stats.getStatus("foo").toString());
}
@Test
public void testStatusManagerHeartbeats() throws IOException {
StatusManager stats = new StatusManager();
FlumeConfiguration cfg = FlumeConfiguration.createTestableConfiguration();
Clock.resetDefault();
cfg.set(FlumeConfiguration.WEBAPPS_PATH, "build/webapps");
cfg.set(FlumeConfiguration.MASTER_STORE, "memory");
// avoiding gossip ack manager until it shuts down cleanly.
ConfigStore cfgStore = FlumeMaster.createConfigStore(cfg);
FlumeMaster fm =
new FlumeMaster(
new CommandManager(), new ConfigManager(cfgStore), stats, new MasterAckManager(), cfg);
fm.getSpecMan().addLogicalNode("physnode", "foo");
// foo is in state HELLO and has configuration numbered 0
long prev = Clock.unixTime();
boolean needsRefresh =
stats.updateHeartbeatStatus(NetUtils.localhost(), "physnode", "foo", NodeState.HELLO, 0);
LOG.info(stats.getNodeStatuses());
assertTrue(needsRefresh);
StatusManager.NodeStatus ns = stats.getNodeStatuses().get("foo");
assertEquals(0, ns.version);
assertTrue(prev <= ns.lastseen);
assertEquals(NodeState.HELLO, ns.state);
prev = ns.lastseen;
needsRefresh =
stats.updateHeartbeatStatus(NetUtils.localhost(), "physnode", "foo", NodeState.IDLE, 0);
LOG.info(stats.getNodeStatuses());
assertFalse(needsRefresh); // no new data flow version
assertEquals(0, ns.version);
assertTrue(prev <= ns.lastseen);
assertEquals(NodeState.IDLE, ns.state);
prev = ns.lastseen;
needsRefresh =
stats.updateHeartbeatStatus(NetUtils.localhost(), "physnode", "foo", NodeState.ACTIVE, 10);
LOG.info(stats.getNodeStatuses());
assertFalse(needsRefresh); // node has updated version number, but master
// has not
assertEquals(10, ns.version);
assertTrue(prev <= ns.lastseen);
assertEquals(NodeState.ACTIVE, ns.state);
prev = ns.lastseen;
// same message, no refresh
needsRefresh =
stats.updateHeartbeatStatus(NetUtils.localhost(), "physnode", "foo", NodeState.ACTIVE, 10);
LOG.info(stats.getNodeStatuses());
assertFalse(needsRefresh); // this is wierd, is this right?
assertEquals(10, ns.version);
assertTrue(prev <= ns.lastseen);
assertEquals(NodeState.ACTIVE, ns.state);
prev = ns.lastseen;
// regress to an older version,
needsRefresh =
stats.updateHeartbeatStatus(NetUtils.localhost(), "physnode", "foo", NodeState.ACTIVE, 5);
LOG.info(stats.getNodeStatuses());
assertFalse(needsRefresh);
assertEquals(5, ns.version);
assertTrue(prev <= ns.lastseen);
assertEquals(NodeState.ACTIVE, ns.state);
prev = ns.lastseen;
LOG.info(stats.getReport());
LOG.info(stats.getName());
}
/**
* Return a list of the names of any nodes that have been seen. Used by the web interface to
* populate choice inputs.
*/
public Set<String> getKnownNodes() {
return statman.getNodeStatuses().keySet();
}