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fix: 解决 redis mq 消息丢失问题

pull/2/head
gaibu 2022-12-27 22:52:19 +08:00
parent 0e6b4e463f
commit 604266d33c
1 changed files with 14 additions and 20 deletions
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34
yudao-framework/yudao-spring-boot-starter-mq/src/main/java/cn/iocoder/yudao/framework/mq/job/RedisPendingMessageResendJob.java
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@ -3,6 +3,7 @@ package cn.iocoder.yudao.framework.mq.job;
import cn.hutool.core.collection.CollUtil;
import cn.iocoder.yudao.framework.mq.core.RedisMQTemplate;
import cn.iocoder.yudao.framework.mq.core.stream.AbstractStreamMessageListener;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
@ -22,7 +23,9 @@ import java.util.Map;
* 这个任务用于处理，crash 之后的消费者未消费完的消息
*/
@Slf4j
@AllArgsConstructor
public class RedisPendingMessageResendJob {
private static final String LOCK_KEY = "redis:pending:msg:lock";
private final List<AbstractStreamMessageListener<?>> listeners;
@ -30,13 +33,6 @@ public class RedisPendingMessageResendJob {
private final String groupName;
private final RedissonClient redissonClient;
public RedisPendingMessageResendJob(List<AbstractStreamMessageListener<?>> listeners, RedisMQTemplate redisTemplate, String groupName, RedissonClient redissonClient) {
this.listeners = listeners;
this.redisTemplate = redisTemplate;
this.groupName = groupName;
this.redissonClient = redissonClient;
}
/**
* 一分钟执行一次,这里选择每分钟的35秒执行，是为了避免整点任务过多的问题
*/
@ -57,28 +53,26 @@ public class RedisPendingMessageResendJob {
private void execute() {
StreamOperations<String, Object, Object> ops = redisTemplate.getRedisTemplate().opsForStream();
listeners.forEach(listener -> {
PendingMessagesSummary pendingMessagesSummary = ops.pending(listener.getStreamKey(), groupName);
// 每个消费者的 pending 队列消息数量
Map<String, Long> pendingMessagesPerConsumer = pendingMessagesSummary.getPendingMessagesPerConsumer();
pendingMessagesPerConsumer.entrySet().forEach(entry -> {
String consumerName = entry.getKey();
Long pendingMessageCount = entry.getValue();
pendingMessagesPerConsumer.forEach((consumerName, pendingMessageCount) -> {
log.info("[processPendingMessage][消费者({}) 消息数量({})]", consumerName, pendingMessageCount);
// 从消费者的 pending 队列中读取消息
List<MapRecord<String, Object, Object>> records = ops.read(Consumer.from(groupName, consumerName), StreamOffset.create(listener.getStreamKey(), ReadOffset.from("0")));
if (CollUtil.isNotEmpty(records)) {
for (MapRecord<String, Object, Object> record : records) {
// 重新投递消息
redisTemplate.getRedisTemplate().opsForStream().add(StreamRecords.newRecord()
.ofObject(record.getValue()) // 设置内容
.withStreamKey(listener.getStreamKey()));
if (CollUtil.isEmpty(records)) {
return;
}
for (MapRecord<String, Object, Object> record : records) {
// 重新投递消息
redisTemplate.getRedisTemplate().opsForStream().add(StreamRecords.newRecord()
.ofObject(record.getValue()) // 设置内容
.withStreamKey(listener.getStreamKey()));
// ack 消息消费完成
redisTemplate.getRedisTemplate().opsForStream().acknowledge(groupName, record);
}
// ack 消息消费完成
redisTemplate.getRedisTemplate().opsForStream().acknowledge(groupName, record);
}
});
});