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io.hyperfoil.clustering.AgentVerticle Maven / Gradle / Ivy
package io.hyperfoil.clustering;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import io.hyperfoil.api.config.Benchmark;
import io.hyperfoil.clustering.messages.AgentControlMessage;
import io.hyperfoil.clustering.messages.AgentHello;
import io.hyperfoil.core.util.CountDown;
import io.hyperfoil.core.impl.SimulationRunnerImpl;
import io.hyperfoil.clustering.messages.PhaseChangeMessage;
import io.hyperfoil.clustering.messages.PhaseControlMessage;
import io.hyperfoil.internal.Properties;
import io.vertx.core.AbstractVerticle;
import io.vertx.core.AsyncResult;
import io.vertx.core.Future;
import io.vertx.core.Handler;
import io.vertx.core.eventbus.EventBus;
import io.vertx.core.eventbus.Message;
import io.vertx.core.eventbus.MessageConsumer;
import io.vertx.core.eventbus.ReplyException;
import io.vertx.core.eventbus.ReplyFailure;
import io.vertx.core.impl.VertxInternal;
import io.vertx.core.logging.Logger;
import io.vertx.core.logging.LoggerFactory;
public class AgentVerticle extends AbstractVerticle {
private static Logger log = LoggerFactory.getLogger(AgentVerticle.class);
private String name;
private String deploymentId;
private String nodeId = "in-vm";
private String runId;
private EventBus eb;
private SimulationRunnerImpl runner;
private MessageConsumer controlFeedConsumer;
private long statsTimerId = -1;
private RequestStatsSender requestStatsSender;
private CountDown statisticsCountDown;
private SessionStatsSender sessionStatsSender;
@Override
public void start() {
deploymentId = deploymentID();
name = context.config().getString("name");
if (name == null) {
name = Properties.get(Properties.AGENT_NAME, null);
}
if (name == null) {
try {
name = InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
log.debug("Cannot deduce name from host name", e);
name = deploymentId;
}
}
runId = context.config().getString("runId");
if (runId == null) {
runId = Properties.get(Properties.RUN_ID, null);
if (runId == null) {
throw new IllegalStateException("No run ID defined for this agent.");
}
}
eb = vertx.eventBus();
eb.consumer(deploymentId, message -> {
try {
AgentControlMessage controlMessage = (AgentControlMessage) message.body();
if (controlMessage == null) {
message.fail(1, "Could not decode message body. Does this Agent have the same version as the Controller?");
return;
}
handleAgentControlMessage(message, controlMessage);
} catch (Throwable t) {
log.error("Processing of message failed", t);
message.fail(1, t.getMessage());
}
});
if (vertx.isClustered()) {
if (vertx instanceof VertxInternal) {
nodeId = ((VertxInternal) vertx).getClusterManager().getNodeID();
}
}
vertx.setPeriodic(1000, timerId -> {
eb.send(Feeds.DISCOVERY, new AgentHello(name, nodeId, deploymentId, runId), reply -> {
log.trace("{} Pinging controller", deploymentId);
if (reply.succeeded()) {
log.info("{} Got reply from controller.", deploymentId);
vertx.cancelTimer(timerId);
} else {
if (reply.cause() instanceof ReplyException) {
ReplyFailure replyFailure = ((ReplyException) reply.cause()).failureType();
if (replyFailure == ReplyFailure.RECIPIENT_FAILURE) {
log.error("{} Failed to register, already registered!", deploymentId);
} else {
log.info("{} Failed to register: {}", deploymentId, replyFailure);
}
}
}
});
});
}
private void handleAgentControlMessage(Message message, AgentControlMessage controlMessage) {
switch (controlMessage.command()) {
case INITIALIZE:
log.info("Initializing agent");
try {
initBenchmark(controlMessage.benchmark(), controlMessage.agentId(), result -> {
if (result.succeeded()) {
message.reply("OK");
} else {
log.error("Replying with error result", result.cause());
message.fail(1, result.cause().getMessage());
}
});
} catch (Throwable e) {
log.error("Failed to initialize agent", e);
message.fail(1, e.getMessage());
}
break;
case STOP:
// collect stats one last time before acknowledging termination
log.info("Received agent reset");
if (statsTimerId >= 0) {
vertx.cancelTimer(statsTimerId);
}
CountDown completion = new CountDown(result -> {
message.reply(result.succeeded() ? "OK" : result.cause());
if (vertx.isClustered()) {
// Give the message some time to be sent
vertx.setTimer(1000, id -> vertx.close());
} else {
vertx.undeploy(deploymentID());
}
}, 1);
if (runner != null) {
runner.visitStatistics(requestStatsSender);
requestStatsSender.send(completion);
runner.shutdown();
}
if (controlFeedConsumer != null) {
controlFeedConsumer.unregister();
}
controlFeedConsumer = null;
runner = null;
requestStatsSender = null;
if (statisticsCountDown != null) {
statisticsCountDown.setHandler(result -> completion.countDown());
statisticsCountDown.countDown();
} else {
completion.countDown();
}
break;
case LIST_SESSIONS:
log.debug("Listing sessions...");
ArrayList sessions = new ArrayList<>();
boolean includeInactive = controlMessage.includeInactive();
runner.visitSessions(s -> {
if (s.isActive() || includeInactive) {
sessions.add(s.toString());
}
});
message.reply(sessions);
break;
case LIST_CONNECTIONS:
log.debug("Listing connections...");
message.reply(runner.listConnections());
break;
}
}
private MessageConsumer listenOnControl() {
return eb.consumer(Feeds.CONTROL, message -> {
PhaseControlMessage controlMessage = (PhaseControlMessage) message.body();
switch (controlMessage.command()) {
case RUN:
runner.startPhase(controlMessage.phase());
break;
case FINISH:
runner.finishPhase(controlMessage.phase());
break;
case TRY_TERMINATE:
runner.tryTerminatePhase(controlMessage.phase());
break;
case TERMINATE:
runner.terminatePhase(controlMessage.phase());
break;
}
});
}
@Override
public void stop() {
if (runner != null) {
runner.shutdown();
}
}
private void initBenchmark(Benchmark benchmark, int agentId, Handler> handler) {
if (runner != null) {
log.error("Another simulation is running!");
handler.handle(Future.failedFuture("Another simulation is running"));
return;
}
runner = new SimulationRunnerImpl(benchmark, agentId, (phase, status, sessionLimitExceeded, error) -> {
log.debug("{} changed phase {} to {}", deploymentId, phase, status);
eb.send(Feeds.RESPONSE, new PhaseChangeMessage(deploymentId, runId, phase.name(), status, sessionLimitExceeded, error));
});
controlFeedConsumer = listenOnControl();
requestStatsSender = new RequestStatsSender(benchmark, eb, deploymentId, runId);
statisticsCountDown = new CountDown(1);
sessionStatsSender = new SessionStatsSender(eb, deploymentId, runId);
runner.init(result -> {
if (result.succeeded()) {
statsTimerId = vertx.setPeriodic(benchmark.statisticsCollectionPeriod(), timerId -> {
runner.visitStatistics(requestStatsSender);
requestStatsSender.send(statisticsCountDown);
runner.visitSessionPoolStats(sessionStatsSender);
sessionStatsSender.send();
});
} else {
log.error("Initialization failed.");
}
handler.handle(result);
});
}
}
