My service is built with spring boot REST API with Redis.Some time face with error that logs:
nested exception is java.util.concurrent.RejectedExecutionException: event executor terminatedorg.springframework.data.redis.RedisSystemException: Unknown redis exception; nested exception is java.util.concurrent.RejectedExecutionException: event executor terminatedat org.springframework.data.redis.FallbackExceptionTranslationStrategy.getFallback(FallbackExceptionTranslationStrategy.java:53) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:43) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:270) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.convertLettuceAccessException(LettuceStringCommands.java:799) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.setEx(LettuceStringCommands.java:232) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.connection.DefaultedRedisConnection.setEx(DefaultedRedisConnection.java:302) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.connection.DefaultStringRedisConnection.setEx(DefaultStringRedisConnection.java:1003) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.core.DefaultValueOperations$4.potentiallyUsePsetEx(DefaultValueOperations.java:268) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.core.DefaultValueOperations$4.doInRedis(DefaultValueOperations.java:261) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:228) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:188) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:96) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]at org.springframework.data.redis.core.DefaultValueOperations.set(DefaultValueOperations.java:256) ~[spring-data-redis-2.2.3.RELEASE.jar!/:2.2.3.RELEASE]I have researched and fixed it with lettuce pool solution. My config in application.yamlredis:
host: ${REDIS_HOST} port: ${REDIS_PORT} password: ${REDIS_PASSWORD} cachePrefix: ${spring.application.name} defaultExpiration: 300 lettuce: pool: maxActive: ${REDIS_POOL_ACTIVE:40} maxIdle: ${REDIS_POOL_MAX_IDLE:40} minIdle: ${REDIS_POOL_MIN_IDLE:4}My configuration Redis class
@EnableCaching@Configuration@EnableConfigurationPropertiespublic class RedisConfiguration extends CachingConfigurerSupport { @Autowired private RedisConnectionFactory redisConnectionFactory; @Primary @Bean public RedisExpireProperties expireProperties() { return new RedisExpireProperties(); } @Bean public RedisCacheManager redisCacheManager(LettuceConnectionFactory lettuceConnectionFactory, RedisExpireProperties expireProperties) { RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig() .disableCachingNullValues() .entryTtl(Duration.ofSeconds(expireProperties.getDefaultExpiration())) .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json())); if (StringUtils.isNotBlank(expireProperties.getCachePrefix())) { String cachePrefix = "." + expireProperties.getCachePrefix() +":"; redisCacheConfiguration.prefixKeysWith(cachePrefix); redisCacheConfiguration.usePrefix(); } return RedisCacheManager.RedisCacheManagerBuilder.fromConnectionFactory(lettuceConnectionFactory) .cacheDefaults(redisCacheConfiguration).build(); } @Bean public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) { RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>(); redisTemplate.setConnectionFactory(redisConnectionFactory); redisTemplate.setKeySerializer(new StringRedisSerializer()); return redisTemplate; }But This error still appears. Please suggest for me a new solution to resolve the error.Many thanks!