Jedis : Could not get a resource from the pool
BackgroundOur application uses Jedis-2.2.1 and connects to Redis-2.6, here's how I get jedis resource : protected static JedisWrapper getRedisUserWrite(String UDID) { if (redisUserWritePools.get(0) ==...
View ArticleClik here to view.
Spring Boot: Redis CRUD Repository findById or findAll always returns...
Hi Team,I am using Spring Boot 2.3.12.RELEASE which internally uses Spring Data Redis 2.3.9.RELEASE as a managed dependency.When I am trying to save an object to the Redis cache using Spring Boot CRUD...
View ArticleSpringboot app running on localhost cant communicate with redis running on...
I have a spring boot app that runs on localhost fine. However, I decided to add caching recently and I run my Redis server from docker. The problem I am facing now is that my Springboot app can not...
View ArticleJedis and Lettuce async abilities
I am using redis with Akka so I need no blocking calls. Lettuce has async-future call built into it. But Jedis is the recommended client by Redis. Can someone tell me if I am using both of them the...
View ArticleClik here to view.
Entity cache in Redis with TTL dosent work in spring boot
I want to cache a UserInfo entity in redis for just 3600 seconds and accord to my searches and examples that I saw, I implemented Redis caching in spring like below code and i have an issue with cache...
View ArticleHow to append two value to one key using Redis Spring Data
I using redis caching my project but i have a problem. I had model student and write method put it to redis.First method i write findStudent one week and put it to cache.public void...
View Articleauto-reconnect to redis after it's recovered
i have microservices keep throwing exceptions about Redis connection failure until we restart them. how can i implement a mechanism to auto-reconnect to Redis when it's available again without the need...
View ArticleHow do I prefix class names wih a custom string?
In order to implement some kind of namespace, I need to prefix the keys of a Redis JPA repository with a static string within a whole Spring application.I read about the spring.cache.redis.key-prefix...
View ArticleSpring Data and Redis - serializing transient fields
I am using Redis as my database with Spring data, with no custom value or hash value serializer. I assume the standrad JdkSerializationRedisSerializer should be used then for objects serialization. It...
View ArticleHow to acess value of a particular key present in redis database using java
I am trying to access redis database through jedis in java. I am able to get connected to redis. I am not able to get the value of a particular key present in the database. The code that I am using now...
View ArticleHow to store List or Set for a Redis key in Spring Boot?
I want to store the id of the user in the USERS key of Redis. If the list is empty or null then a new list with an id is added in that key.If the key contains an already list then a new id should be...
View ArticleHow to have data consistency in H2 database after scaling up the spring boot...
I have a spring boot application which connects to in memory H2 database. If I have to horizontally scale up the spring boot application with say 2-3 parallel instances ( I am using docker ). How can...
View ArticleRedis keys are getting deleted automatically
We are using redis as caching. There were cases when some of the keys were getting deleted and we couldn't find the reason. I put redis keyspace/keyevent for CONFIG SET notify-keyspace-events KEgxe on...
View ArticleClassNotFoundException while JedisClient initialization in Spring Boot 2.5.4...
I have a Spring Boot 2.5.4 application in which I would like to add Redis and access it via Spring Data Redis. My current configuration looks like this:pom.xml<?xml version="1.0"...
View Article(lettuce) READONLY You can't write against a read only slave
I need some help, Our service uses the lettuce 5.1.6 version, and a total of 22 docker nodes are deployed.Whenever the service is deployed, several docker nodes will appear ERROR: READONLY You can't...
View ArticleLoad CSV file in Redis using Redis-cli on Windows
I went through questions like how to import a ".csv " data-file into the Redis database and decided to put a question here after lot of web searching.I've an employee.csv file and looking to import...
View ArticleSynching Stomp over Web Sockets in SpringBoot on a Cluster with Redis as a...
I am working on a SpringBoot web app using web sockets and I have a functional implementation for a single server.I am researching the best solution for integrating a cluster of servers so that the...
View Articlejava.io.NotSerializableException: org.mybatis.spring.SqlSessionTemplate...
Getting the following exception after adding Redisson Session manager to Tomcat . Same as issue : java.io.NotSerializableException: org.mybatis.spring.SqlSessionTemplate . Any suggestion to solve the...
View ArticleEmbedded Redis for Spring Boot
I run my Integration Test cases with Spring Boot with the help of my local Redis server on my machine.But I want an embedded Redis server which is not dependent on any server and can run on any...
View ArticleHow caching works with Redis in Spring Boot?
I implement the following caching mechanism using Redis, but I am not sure how it works for different resultset.CacheConfig:@Configurationpublic class CacheConfig { @Bean public RedisCacheConfiguration...
View Article