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@@ -0,0 +1,72 @@
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+package cn.iocoder.yudao.framework.mq.redis.core.job;
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+
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+import cn.iocoder.yudao.framework.mq.redis.core.RedisMQTemplate;
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+import cn.iocoder.yudao.framework.mq.redis.core.stream.AbstractRedisStreamMessageListener;
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+import lombok.AllArgsConstructor;
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+import lombok.extern.slf4j.Slf4j;
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+import org.redisson.api.RLock;
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+import org.redisson.api.RedissonClient;
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+import org.springframework.data.redis.core.StreamOperations;
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+import org.springframework.scheduling.annotation.Scheduled;
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+
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+import java.util.List;
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+
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+/**
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+ * Redis Stream 消息清理任务
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+ * 用于定期清理已消费的消息,防止内存占用过大
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+ *
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+ * @see <a href="https://www.cnblogs.com/nanxiang/p/16179519.html">记一次 redis stream 数据类型内存不释放问题</a>
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+ *
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+ * @author 芋道源码
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+ */
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+@Slf4j
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+@AllArgsConstructor
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+public class RedisStreamMessageCleanupJob {
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+
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+ private static final String LOCK_KEY = "redis:stream:message-cleanup:lock";
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+
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+ /**
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+ * 保留的消息数量,默认保留最近 10000 条消息
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+ */
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+ private static final long MAX_COUNT = 10000;
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+
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+ private final List<AbstractRedisStreamMessageListener<?>> listeners;
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+ private final RedisMQTemplate redisTemplate;
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+ private final RedissonClient redissonClient;
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+
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+ /**
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+ * 每小时执行一次清理任务
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+ */
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+ @Scheduled(cron = "0 0 * * * ?")
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+ public void cleanup() {
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+ RLock lock = redissonClient.getLock(LOCK_KEY);
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+ // 尝试加锁
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+ if (lock.tryLock()) {
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+ try {
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+ execute();
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+ } catch (Exception ex) {
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+ log.error("[cleanup][执行异常]", ex);
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+ } finally {
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+ lock.unlock();
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+ }
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+ }
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+ }
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+
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+ /**
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+ * 执行清理逻辑
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+ */
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+ private void execute() {
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+ StreamOperations<String, Object, Object> ops = redisTemplate.getRedisTemplate().opsForStream();
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+ listeners.forEach(listener -> {
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+ try {
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+ // 使用 XTRIM 命令清理消息,只保留最近的 MAX_LEN 条消息
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+ Long trimCount = ops.trim(listener.getStreamKey(), MAX_COUNT, true);
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+ if (trimCount != null && trimCount > 0) {
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+ log.info("[execute][Stream({}) 清理消息数量({})]", listener.getStreamKey(), trimCount);
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+ }
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+ } catch (Exception ex) {
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+ log.error("[execute][Stream({}) 清理异常]", listener.getStreamKey(), ex);
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+ }
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+ });
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+ }
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+}
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