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[Issue #528] enhance Retry support for HTTP and TCP processors. (#529)
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* [Issue #337] Fix HttpSubscriber startup issue

* [Issue #337] test commit

* [Issue #337] revert test commit

* [Issue #337] Enhance Http Demo Subscriber by using ExecutorService, CountDownLatch and PreDestroy hook

* [Issue #337] Enhance Http Demo Subscriber by using ExecutorService, CountDownLatch and PreDestroy hook

* [Issue #337] Address code review comment for Subscriber Demo App

* [Issue #528] enhance Retry support for HTTP and TCP processors.

* [Issue #528] fixing checkstyle issue

* [Issue #528] Fix taskExecuteTime in TCP ClientGroupWrapper UpStreamMsgContext

Co-authored-by: j00441484 <[email protected]>
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jinrongluo and j00441484 authored Sep 30, 2021
1 parent dcd409d commit e1e9eb0
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Showing 11 changed files with 397 additions and 299 deletions.
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Expand Up @@ -44,7 +44,7 @@
import org.apache.eventmesh.runtime.core.protocol.tcp.client.group.ClientSessionGroupMapping;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.rebalance.EventMeshRebalanceService;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.rebalance.EventmeshRebalanceImpl;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.push.retry.EventMeshTcpRetryer;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.retry.EventMeshTcpRetryer;
import org.apache.eventmesh.runtime.metrics.tcp.EventMeshTcpMonitor;
import org.apache.eventmesh.runtime.registry.Registry;
import org.apache.eventmesh.runtime.util.EventMeshThreadFactoryImpl;
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Expand Up @@ -245,6 +245,8 @@ public void onException(OnExceptionContext context) {
SendMessageResponseBody.buildBody(EventMeshRetCode.EVENTMESH_SEND_ASYNC_MSG_ERR.getRetCode(),
EventMeshRetCode.EVENTMESH_SEND_ASYNC_MSG_ERR.getErrMsg() + EventMeshUtil.stackTrace(context.getException(), 2)));
asyncContext.onComplete(err, handler);

eventMeshHTTPServer.getHttpRetryer().pushRetry(sendMessageContext.delay(10000));
long endTime = System.currentTimeMillis();
eventMeshHTTPServer.metrics.summaryMetrics.recordSendMsgFailed();
eventMeshHTTPServer.metrics.summaryMetrics.recordSendMsgCost(endTime - startTime);
Expand All @@ -261,6 +263,8 @@ public void onException(OnExceptionContext context) {
SendMessageResponseBody.buildBody(EventMeshRetCode.EVENTMESH_SEND_ASYNC_MSG_ERR.getRetCode(),
EventMeshRetCode.EVENTMESH_SEND_ASYNC_MSG_ERR.getErrMsg() + EventMeshUtil.stackTrace(ex, 2)));
asyncContext.onComplete(err);

eventMeshHTTPServer.getHttpRetryer().pushRetry(sendMessageContext.delay(10000));
long endTime = System.currentTimeMillis();
messageLogger.error("message|eventMesh2mq|REQ|ASYNC|send2MQCost={}ms|topic={}|bizSeqNo={}|uniqueId={}",
endTime - startTime,
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Expand Up @@ -254,6 +254,8 @@ public void onException(Throwable e) {
SendMessageResponseBody.buildBody(EventMeshRetCode.EVENTMESH_WAITING_RR_MSG_ERR.getRetCode(),
EventMeshRetCode.EVENTMESH_WAITING_RR_MSG_ERR.getErrMsg() + EventMeshUtil.stackTrace(e, 2)));
asyncContext.onComplete(err, handler);

eventMeshHTTPServer.getHttpRetryer().pushRetry(sendMessageContext.delay(10000));
messageLogger.error("message|mq2eventMesh|RSP|SYNC|rrCost={}ms|topic={}|bizSeqNo={}|uniqueId={}",
System.currentTimeMillis() - startTime,
sendMessageRequestBody.getTopic(),
Expand All @@ -267,6 +269,8 @@ public void onException(Throwable e) {
SendMessageResponseBody.buildBody(EventMeshRetCode.EVENTMESH_SEND_SYNC_MSG_ERR.getRetCode(),
EventMeshRetCode.EVENTMESH_SEND_SYNC_MSG_ERR.getErrMsg() + EventMeshUtil.stackTrace(ex, 2)));
asyncContext.onComplete(err);

eventMeshHTTPServer.getHttpRetryer().pushRetry(sendMessageContext.delay(10000));
long endTime = System.currentTimeMillis();
eventMeshHTTPServer.metrics.summaryMetrics.recordSendMsgFailed();
eventMeshHTTPServer.metrics.summaryMetrics.recordSendMsgCost(endTime - startTime);
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Expand Up @@ -17,26 +17,8 @@

package org.apache.eventmesh.runtime.core.protocol.tcp.client.group;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import com.alibaba.fastjson.JSON;

import io.openmessaging.api.AsyncConsumeContext;
import io.openmessaging.api.AsyncMessageListener;
import io.openmessaging.api.Message;
import io.openmessaging.api.OnExceptionContext;
import io.openmessaging.api.SendCallback;
import io.openmessaging.api.SendResult;

import io.openmessaging.api.*;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.eventmesh.api.EventMeshAction;
Expand All @@ -53,14 +35,20 @@
import org.apache.eventmesh.runtime.core.protocol.tcp.client.group.dispatch.DownstreamDispatchStrategy;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.Session;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.push.DownStreamMsgContext;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.push.retry.EventMeshTcpRetryer;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.retry.EventMeshTcpRetryer;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.send.UpStreamMsgContext;
import org.apache.eventmesh.runtime.metrics.tcp.EventMeshTcpMonitor;
import org.apache.eventmesh.runtime.util.EventMeshUtil;
import org.apache.eventmesh.runtime.util.HttpTinyClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

public class ClientGroupWrapper {

public static Logger logger = LoggerFactory.getLogger(ClientGroupWrapper.class);
Expand Down Expand Up @@ -752,7 +740,9 @@ private void sendMsgBackToBroker(Message msg, String bizSeqNo) throws Exception
String topic = msg.getSystemProperties(Constants.PROPERTY_MESSAGE_DESTINATION);
logger.warn("send msg back to broker, bizSeqno:{}, topic:{}", bizSeqNo, topic);

send(new UpStreamMsgContext(null, null, msg), new SendCallback() {
long startTime = System.currentTimeMillis();
long taskExcuteTime = startTime;
send(new UpStreamMsgContext(null, msg, null, startTime, taskExcuteTime), new SendCallback() {
@Override
public void onSuccess(SendResult sendResult) {
logger.info("consumerGroup:{} consume fail, sendMessageBack success, bizSeqno:{}, topic:{}", consumerGroup, bizSeqNo, topic);
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Original file line number Diff line number Diff line change
Expand Up @@ -17,45 +17,36 @@

package org.apache.eventmesh.runtime.core.protocol.tcp.client.session.push;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Delayed;
import java.util.concurrent.TimeUnit;

import io.openmessaging.api.Message;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.time.DateFormatUtils;
import org.apache.eventmesh.api.AbstractContext;
import org.apache.eventmesh.common.Constants;
import org.apache.eventmesh.common.protocol.SubscriptionItem;
import org.apache.eventmesh.common.protocol.SubscriptionMode;
import org.apache.eventmesh.runtime.constants.EventMeshConstants;
import org.apache.eventmesh.runtime.core.plugin.MQConsumerWrapper;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.Session;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.retry.RetryContext;
import org.apache.eventmesh.runtime.util.EventMeshUtil;
import org.apache.eventmesh.runtime.util.ServerGlobal;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;

public class DownStreamMsgContext implements Delayed {
public class DownStreamMsgContext extends RetryContext {

private final Logger logger = LoggerFactory.getLogger(this.getClass());

public String seq;

public Message msgExt;

public Session session;

public AbstractContext consumeConcurrentlyContext;

public MQConsumerWrapper consumer;

public int retryTimes;

public SubscriptionItem subscriptionItem;

private long executeTime;

public long lastPushTime;

private long createTime;
Expand All @@ -68,11 +59,9 @@ public DownStreamMsgContext(Message msgExt, Session session, MQConsumerWrapper c
this.seq = String.valueOf(ServerGlobal.getInstance().getMsgCounter().incrementAndGet());
this.msgExt = msgExt;
this.session = session;
this.retryTimes = 0;
this.consumer = consumer;
this.consumeConcurrentlyContext = consumeConcurrentlyContext;
this.lastPushTime = System.currentTimeMillis();
this.executeTime = System.currentTimeMillis();
this.createTime = System.currentTimeMillis();
this.subscriptionItem = subscriptionItem;
String ttlStr = msgExt.getUserProperties("TTL");
Expand All @@ -99,10 +88,6 @@ public void ackMsg() {
}
}

public void delay(long delay) {
this.executeTime = System.currentTimeMillis() + (retryTimes + 1) * delay;
}

@Override
public String toString() {
return "DownStreamMsgContext{" +
Expand All @@ -119,19 +104,71 @@ public String toString() {
}

@Override
public int compareTo(Delayed delayed) {
DownStreamMsgContext context = (DownStreamMsgContext) delayed;
if (this.executeTime > context.executeTime) {
return 1;
} else if (this.executeTime == context.executeTime) {
return 0;
} else {
return -1;
public void retry() {
try {
logger.info("retry downStream msg start,seq:{},retryTimes:{},bizSeq:{}", this.seq, this.retryTimes, EventMeshUtil.getMessageBizSeq(this.msgExt));

if (isRetryMsgTimeout(this)) {
return;
}
this.retryTimes++;
this.lastPushTime = System.currentTimeMillis();

Session rechoosen = null;
String topic = this.msgExt.getSystemProperties(Constants.PROPERTY_MESSAGE_DESTINATION);
if (!SubscriptionMode.BROADCASTING.equals(this.subscriptionItem.getMode())) {
rechoosen = this.session.getClientGroupWrapper()
.get().getDownstreamDispatchStrategy().select(this.session.getClientGroupWrapper().get().getSysId()
, topic
, this.session.getClientGroupWrapper().get().getGroupConsumerSessions());
} else {
rechoosen = this.session;
}

if (rechoosen == null) {
logger.warn("retry, found no session to downstream msg,seq:{}, retryTimes:{}, bizSeq:{}", this.seq, this.retryTimes, EventMeshUtil.getMessageBizSeq(this.msgExt));
} else {
this.session = rechoosen;
rechoosen.downstreamMsg(this);
logger.info("retry downStream msg end,seq:{},retryTimes:{},bizSeq:{}", this.seq, this.retryTimes, EventMeshUtil.getMessageBizSeq(this.msgExt));
}
} catch (Exception e) {
logger.error("retry-dispatcher error!", e);
}
}

@Override
public long getDelay(TimeUnit unit) {
return unit.convert(this.executeTime - System.currentTimeMillis(), TimeUnit.MILLISECONDS);
private boolean isRetryMsgTimeout(DownStreamMsgContext downStreamMsgContext) {
boolean flag = false;
String ttlStr = downStreamMsgContext.msgExt.getUserProperties(EventMeshConstants.PROPERTY_MESSAGE_TTL);
long ttl = StringUtils.isNumeric(ttlStr)? Long.parseLong(ttlStr) : EventMeshConstants.DEFAULT_TIMEOUT_IN_MILLISECONDS;;

String storeTimeStr = downStreamMsgContext.msgExt.getUserProperties(EventMeshConstants.STORE_TIME);
long storeTimestamp = StringUtils.isNumeric(storeTimeStr)? Long.parseLong(storeTimeStr) : 0;
String leaveTimeStr = downStreamMsgContext.msgExt.getUserProperties(EventMeshConstants.LEAVE_TIME);
long brokerCost = StringUtils.isNumeric(leaveTimeStr) ? Long.parseLong(leaveTimeStr) - storeTimestamp : 0;

String arriveTimeStr = downStreamMsgContext.msgExt.getUserProperties(EventMeshConstants.ARRIVE_TIME);
long accessCost = StringUtils.isNumeric(arriveTimeStr) ? System.currentTimeMillis() - Long.parseLong(arriveTimeStr) : 0;
double elapseTime = brokerCost + accessCost;
if (elapseTime >= ttl) {
logger.warn("discard the retry because timeout, seq:{}, retryTimes:{}, bizSeq:{}", downStreamMsgContext.seq, downStreamMsgContext.retryTimes, EventMeshUtil.getMessageBizSeq(downStreamMsgContext.msgExt));
flag = true;
eventMeshAckMsg(downStreamMsgContext);
}
return flag;
}

/**
* eventMesh ack msg
*
* @param downStreamMsgContext
*/
private void eventMeshAckMsg(DownStreamMsgContext downStreamMsgContext) {
List<Message> msgExts = new ArrayList<Message>();
msgExts.add(downStreamMsgContext.msgExt);
logger.warn("eventMeshAckMsg topic:{}, seq:{}, bizSeq:{}", downStreamMsgContext.msgExt.getSystemProperties(Constants.PROPERTY_MESSAGE_DESTINATION),
downStreamMsgContext.seq, downStreamMsgContext.msgExt.getSystemProperties(EventMeshConstants.PROPERTY_MESSAGE_KEYS));
downStreamMsgContext.consumer.updateOffset(msgExts, downStreamMsgContext.consumeConcurrentlyContext);
}

}
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