Original/Zhu Jiqian Background: Recently, I was doing a stress test on a newly developed Springboot system. I found that when I first started the stress test, I could access data from the redis cluster normally. However, after a few minutes of pause, and then when I continued to use jmeter to perform the stress test, […]
Tag: lettuce
SpringBoot Chapter Integrating Jedis, Lettuce, and Redisson
Directory Preface 1. Detailed explanation of the differences between Jedis, Lettuce and Redisson 2. SpringBoot integration 2.1 Integrating Jedis 2.2 Integrating Lettuce 2.3 Integrating Redisson Summarize Foreword Hello everyone, I am AK. I am working on a new project recently, which is based on the modification of the old project framework. I also happen to […]
92. Redis ——- Methods and steps for using Lettuce to operate Redis database and demonstrations of three styles of operating Redis database (synchronous sync, asynchronous async, reactive Reactive)
lettuce: English meaning: lettuce It is a framework for operating redis. Springboot also supports lettuce by default. You can also change it to jedis. Jedis is also a framework used to operate redis Lettuce’s core API RedisURI: used to encapsulate the URI information of the Redis server. RedisClient: Represents the Redis client. If you connect […]
Why does Lettuce lead to longer downtime?
Author: Yang Bodong (Fan Che) This article details the optimization process of Alibaba Cloud Database Tair/Redis to reduce the recovery time of Alibaba Cloud Database Tair/Redis from the initial 900s to 120s and then to 30s in unanticipated downtime switching scenarios using long-connect clients, involving product optimization and open source product problem repair. and many […]
Comparison and implementation of springboot integrating connection pool jedis and lettuce in Redis
Comparison and implementation of springboot integrating connection pool jedis and lettuce in Redis Why use Redis connection pool The difference between jedis and lettuce Implementation of both in springboot Lettuce Jedis suggestion Why use Redis connection pool The Redis connection pool is a component used to manage and maintain connections to the Redis server. It […]
In-depth analysis of lettuce, why a single connection can also handle high concurrent redis requests
Introduction What is lettuce Spring Boot uses Lettuce as the Redis client by default since version 2.0 (Note 1). The Lettuce client is implemented based on Netty’s NIO framework. For most Redis operations, it only needs to maintain a single connection to efficiently support concurrent requests from the business end – this is very different […]
SpringBoot integrates redis+lettuce
Foreword Spring Boot provides an integration framework with Redis, which can be integrated using Lettuce as a Redis client. Version dependency jdk 17 SpringBoot 3.1.0 Environment preparation Dependencies <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>3.1.0</version> </parent> <groupId>com.example</groupId> <artifactId>RedisLettuceDemo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>RedisLettuceDemo</name> <description>RedisLettuceDemo</description> <properties> <java.version>17</java.version> <maven.compiler.source>17</maven.compiler.source> <maven.compiler.target>17</maven.compiler.target> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> […]
io.lettuce.core.RedisCommandExecutionException: ERR wrong number of arguments for ‘info’ command
io.lettuce.core.RedisCommandExecutionException: ERR wrong number of arguments for ‘info’ command org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: ERR wrong number of arguments for ‘info’ command at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:54) at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:52) at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41) at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44) at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42) at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:271) at org.springframework.data.redis.connection.lettuce.LettuceConnection.await(LettuceConnection.java:1062) at org.springframework.data.redis.connection.lettuce.LettuceConnection.lambda$doInvoke$4(LettuceConnection.java:919) at org.springframework.data.redis.connection.lettuce.LettuceInvoker$Synchronizer.invoke(LettuceInvoker.java:673) at org.springframework.data.redis.connection.lettuce.LettuceInvoker$DefaultSingleInvocationSpec.get(LettuceInvoker.java:589) at org.springframework.data.redis.connection.lettuce.LettuceServerCommands.info(LettuceServerCommands.java:128) at org.springframework.data.redis.connection.DefaultedRedisConnection.info(DefaultedRedisConnection.java:1395) at org.springframework.data.redis.connection.DefaultStringRedisConnection.info(DefaultStringRedisConnection.java:616) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at […]
redis configuration tool class, use LettuceConnectionFactory and close ping
@Slf4j @Configuration public class RedisConfig11 extends CachingConfigurerSupport { @Value(“${redis. maxIdle}”) private int maxIdle; @Value(“${redis. minIdle}”) private int minIdle; @Value(“${redis. maxTotal}”) private int maxTotal; @Value(“${redis. timeout}”) private int timeout; @Value(“${redis.cluster.nodes}”) private String nodes; @Value(“${redis.password}”) private String password; @Autowired private CustomRedisKeySerializer customRedisKeySerializer; @Autowired private CustomRedisSerializer customRedisSerializer; @Bean(destroyMethod = “destroy”) public LettuceConnectionFactory lettuceConnectionFactory() { // Connection pool configuration […]
Automatic update of redis cluster topology: exception handling when using Lettuce to connect to Cluster cluster instances
Questions: Use lettuce to connect to the Cluster cluster instance. After the specification of the instance is changed, when the number of shards changes, some slots (Slots) will be migrated to the new shard. When the client connects to the new shard, the following abnormal problems will occur. java.lang.IllegalArgumentException: Connection to 100.123.70.194:6379 not allowed. This […]