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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.feed.perf;
import com.yahoo.concurrent.ThreadFactoryFactory;
import com.yahoo.document.DocumentPut;
import com.yahoo.document.DocumentTypeManager;
import com.yahoo.document.json.JsonFeedReader;
import com.yahoo.documentapi.messagebus.protocol.DocumentProtocol;
import com.yahoo.documentapi.messagebus.protocol.PutDocumentMessage;
import com.yahoo.documentapi.messagebus.protocol.RemoveDocumentMessage;
import com.yahoo.documentapi.messagebus.protocol.UpdateDocumentMessage;
import com.yahoo.messagebus.Error;
import com.yahoo.messagebus.Message;
import com.yahoo.messagebus.MessageBusParams;
import com.yahoo.messagebus.RPCMessageBus;
import com.yahoo.messagebus.Reply;
import com.yahoo.messagebus.ReplyHandler;
import com.yahoo.messagebus.SourceSession;
import com.yahoo.messagebus.SourceSessionParams;
import com.yahoo.messagebus.StaticThrottlePolicy;
import com.yahoo.messagebus.network.rpc.RPCNetworkParams;
import com.yahoo.messagebus.routing.Route;
import com.yahoo.vespaxmlparser.FeedReader;
import com.yahoo.vespaxmlparser.VespaXMLFeedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
/**
* @author Simon Thoresen Hult
*/
public class SimpleFeeder implements ReplyHandler {
private final static long REPORT_INTERVAL = TimeUnit.SECONDS.toMillis(10);
private final static long HEADER_INTERVAL = REPORT_INTERVAL * 24;
private final DocumentTypeManager docTypeMgr = new DocumentTypeManager();
private final InputStream in;
private final PrintStream out;
private final PrintStream err;
private final RPCMessageBus mbus;
private final Route route;
private final SourceSession session;
private final long startTime = System.currentTimeMillis();
private final AtomicReference<Throwable> failure = new AtomicReference<>(null);
private final AtomicLong numReplies = new AtomicLong(0);
private long maxLatency = Long.MIN_VALUE;
private long minLatency = Long.MAX_VALUE;
private long nextHeader = startTime + HEADER_INTERVAL;
private long nextReport = startTime + REPORT_INTERVAL;
private long sumLatency = 0;
private final int numThreads;
public static void main(String[] args) throws Throwable {
new SimpleFeeder(new FeederParams().parseArgs(args)).run().close();
}
SimpleFeeder(FeederParams params) {
this.in = params.getStdIn();
this.out = params.getStdOut();
this.err = params.getStdErr();
this.route = params.getRoute();
this.numThreads = params.getNumDispatchThreads();
this.mbus = newMessageBus(docTypeMgr, params.getConfigId());
this.session = newSession(mbus, this, params.isSerialTransferEnabled());
this.docTypeMgr.configure(params.getConfigId());
}
private void sendOperation(VespaXMLFeedReader.Operation op) {
Message msg = newMessage(op);
if (msg == null) {
err.println("ignoring operation; " + op.getType());
return;
}
msg.setContext(System.currentTimeMillis());
msg.setRoute(route);
try {
Error err = session.sendBlocking(msg).getError();
if (err != null) {
failure.set(new IOException(err.toString()));
}
} catch (InterruptedException e) {}
}
private FeedReader createFeedReader() throws Exception {
in.mark(8);
byte b[] = new byte[1];
in.read(b);
in.reset();
if (b[0] == '[') {
return new JsonFeedReader(in, docTypeMgr);
} else {
return new VespaXMLFeedReader(in, docTypeMgr);
}
}
SimpleFeeder run() throws Throwable {
ExecutorService executor = (numThreads > 1)
? new ThreadPoolExecutor(numThreads, numThreads, 0L, TimeUnit.SECONDS,
new SynchronousQueue<>(false),
ThreadFactoryFactory.getDaemonThreadFactory("perf-feeder"),
new ThreadPoolExecutor.CallerRunsPolicy())
: null;
FeedReader reader = createFeedReader();
printHeader();
long numMessages = 0;
while (failure.get() == null) {
VespaXMLFeedReader.Operation op = new VespaXMLFeedReader.Operation();
reader.read(op);
if (op.getType() == VespaXMLFeedReader.OperationType.INVALID) {
break;
}
if (executor != null) {
executor.execute(() -> sendOperation(op));
} else {
sendOperation(op);
}
++numMessages;
}
while (failure.get() == null && numReplies.get() < numMessages) {
Thread.sleep(100);
}
if (failure.get() != null) {
throw failure.get();
}
printReport();
return this;
}
void close() {
session.destroy();
mbus.destroy();
}
private Message newMessage(VespaXMLFeedReader.Operation op) {
switch (op.getType()) {
case DOCUMENT: {
PutDocumentMessage message = new PutDocumentMessage(new DocumentPut(op.getDocument()));
message.setCondition(op.getCondition());
return message;
}
case REMOVE: {
RemoveDocumentMessage message = new RemoveDocumentMessage(op.getRemove());
message.setCondition(op.getCondition());
return message;
}
case UPDATE: {
UpdateDocumentMessage message = new UpdateDocumentMessage(op.getDocumentUpdate());
message.setCondition(op.getCondition());
return message;
}
default:
return null;
}
}
@Override
public void handleReply(Reply reply) {
if (failure.get() != null) {
return;
}
if (reply.hasErrors()) {
failure.compareAndSet(null, new IOException(formatErrors(reply)));
return;
}
long now = System.currentTimeMillis();
long latency = now - (long) reply.getContext();
numReplies.incrementAndGet();
accumulateReplies(now, latency);
}
private synchronized void accumulateReplies(long now, long latency) {
minLatency = Math.min(minLatency, latency);
maxLatency = Math.max(maxLatency, latency);
sumLatency += latency;
if (now > nextHeader) {
printHeader();
nextHeader += HEADER_INTERVAL;
}
if (now > nextReport) {
printReport();
nextReport += REPORT_INTERVAL;
}
}
private void printHeader() {
out.println("total time, num messages, min latency, avg latency, max latency");
}
private void printReport() {
out.format("%10d, %12d, %11d, %11d, %11d\n", System.currentTimeMillis() - startTime,
numReplies.get(), minLatency, sumLatency / numReplies.get(), maxLatency);
}
private static String formatErrors(Reply reply) {
StringBuilder out = new StringBuilder();
out.append(reply.getMessage().toString()).append('\n');
for (int i = 0, len = reply.getNumErrors(); i < len; ++i) {
out.append(reply.getError(i).toString()).append('\n');
}
return out.toString();
}
private static RPCMessageBus newMessageBus(DocumentTypeManager docTypeMgr, String configId) {
return new RPCMessageBus(new MessageBusParams().addProtocol(new DocumentProtocol(docTypeMgr)),
new RPCNetworkParams().setSlobrokConfigId(configId),
configId);
}
private static SourceSession newSession(RPCMessageBus mbus, ReplyHandler replyHandler, boolean serial) {
SourceSessionParams params = new SourceSessionParams();
params.setReplyHandler(replyHandler);
if (serial) {
params.setThrottlePolicy(new StaticThrottlePolicy().setMaxPendingCount(1));
}
return mbus.getMessageBus().createSourceSession(params);
}
}
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