Getting "org.springframework.dao.QueryTimeoutException: Redis command timed out" sporadically in Springboot Cloud Gateway code.

[sanketkeskar]

Bug Report

Current Behavior

Getting "org.springframework.dao.QueryTimeoutException: Redis command timed out" sporadically in Springboot Cloud Gateway code.

2024-09-09 01:22:11.954 DEBUG 3139744 --- [lettuce-eventExecutorLoop-3-2] o.s.c.g.f.ratelimit.RedisRateLimiter     : Error calling rate limiter lua

org.springframework.dao.QueryTimeoutException: Redis command timed out; nested exception is io.lettuce.core.RedisCommandTimeoutException: Command timed out after 10 second(s)
	at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:70) ~[spring-data-redis-2.7.17.jar!/:2.7.17]
	at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41) ~[spring-data-redis-2.7.17.jar!/:2.7.17]
	at org.springframework.data.redis.connection.lettuce.LettuceReactiveRedisConnection.lambda$translateException$0(LettuceReactiveRedisConnection.java:293) ~[spring-data-redis-2.7.17.jar!/:2.7.17]
	at reactor.core.publisher.Flux.lambda$onErrorMap$28(Flux.java:7070) ~[reactor-core-3.4.33.jar!/:3.4.33]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:94) ~[reactor-core-3.4.33.jar!/:3.4.33]
	at reactor.core.publisher.MonoFlatMapMany$FlatMapManyInner.onError(MonoFlatMapMany.java:255) ~[reactor-core-3.4.33.jar!/:3.4.33]
	at io.lettuce.core.RedisPublisher$ImmediateSubscriber.onError(RedisPublisher.java:891) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.RedisPublisher$State.onError(RedisPublisher.java:712) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.RedisPublisher$RedisSubscription.onError(RedisPublisher.java:357) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.RedisPublisher$SubscriptionCommand.onError(RedisPublisher.java:797) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.RedisPublisher$SubscriptionCommand.doOnError(RedisPublisher.java:793) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.protocol.CommandWrapper.completeExceptionally(CommandWrapper.java:128) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.cluster.ClusterCommand.completeExceptionally(ClusterCommand.java:99) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.protocol.CommandExpiryWriter.lambda$potentiallyExpire$0(CommandExpiryWriter.java:175) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98) ~[netty-common-4.1.100.Final.jar!/:4.1.100.Final]
	at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:153) ~[netty-common-4.1.100.Final.jar!/:4.1.100.Final]
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:173) ~[netty-common-4.1.100.Final.jar!/:4.1.100.Final]
	at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:66) ~[netty-common-4.1.100.Final.jar!/:4.1.100.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.100.Final.jar!/:4.1.100.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.100.Final.jar!/:4.1.100.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.100.Final.jar!/:4.1.100.Final]
	at java.base/java.lang.Thread.run(Thread.java:829) ~[na:na]
Caused by: io.lettuce.core.RedisCommandTimeoutException: Command timed out after 10 second(s)
	at io.lettuce.core.internal.ExceptionFactory.createTimeoutException(ExceptionFactory.java:59) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	at io.lettuce.core.protocol.CommandExpiryWriter.lambda$potentiallyExpire$0(CommandExpiryWriter.java:176) ~[lettuce-core-6.1.10.RELEASE.jar!/:6.1.10.RELEASE]
	... 8 common frames omitted

2024-09-09 01:22:11.955 DEBUG 3139744 --- [lettuce-eventExecutorLoop-3-2] o.s.c.g.f.ratelimit.RedisRateLimiter     : response: Response{allowed=true, headers={X-RateLimit-Remaining=-1, X-RateLimit-Requested-Tokens=1, X-RateLimit-Burst-Capacity=100, X-RateLimit-Replenish-Rate=50}, tokensRemaining=-1}

Input Code

I have used RateLimiterFilter in my Spring Cloud Gateway for implementing rate limiting

package com.lti.api.gateway.filter.pre;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.ratelimit.KeyResolver;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;

import reactor.core.publisher.Mono;

@Component
public class RateLimiterFilter implements KeyResolver{

	private static final Logger logger = LoggerFactory.getLogger(RateLimiterFilter.class);

	@Override
	public Mono<String> resolve(ServerWebExchange exchange) {
			logger.info("In resolve --- client_name: NA");
			return Mono.just("1");
	}
}

Expected behavior/code

Environment

• Lettuce version(s): 6.1.10.RELEASE

Possible Solution

Additional context

I am connecting to AWS ElastiCache for this operation.

[sanketkeskar]

@mp911de Hi, I saw multiple issues reported regarding the same. But couldn't find any concrete solution of it. Can you please help into it. How can it be resolved/handled?

[tishun]

Hey, have you checked https://redis.github.io/lettuce/faq/#im-seeing-rediscommandtimeoutexception ?

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