Freaks City

Understanding Caching Concepts Buffer vs. Cache buffer: Primarily used for write operations, acting as a write buffer. cache: Primarily used for read operations, serving as a read cache. Both address speed inconsistencies and involve I/O operations. Key Cache Considerations 1. Storage location (multi-level cache): Client-side (browser cach ...

Overview This article describes a clean approach to implementing distributed locking and rate limiting using Redis in Spring Boot applications. The solution leverages Redis atomic operations for thread-safe state management across multiple service instances. Why Redis? Redis provides atomic operations that guarantee complete execution or no exe ...

Distributed Caching Architectures Handling Data Discrepancies Cache Penetration: Occurs when queries request data existing neither in the cache nor the database. Mitigation strategies include: Storing null values for missing keys with short expiration times to prevent redundant DB hits. Implementing a Bloom Filter to probabilistically verify d ...

Enviroment Preparation Server Layout Hostname IP Instances Ports redis-node-0 10.10.101.29 2 6379, 6380 redis-node-1 10.10.101.30 2 6379, 6380 redis-node-2 10.10.101.31 2 6379, 6380 Build Dependencies # Enable GCC 9 yum -y install centos-release-scl yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils scl ena ...

Implementing Redis Master-Slave Replication Redis master-slave replicaiton enables data redundancy and read scalability by allowing one Redis server (master) to replicate its data to one or more replica servers (slaves). The master handles write operations while slaves serve read requests, creating a one-to-many replication topology. Cofnigurin ...

Overview This tutorial covers implementing the following features: Likes, loves, and comments notification lists System announcements User profile page Chat with strangers functionality Who viewed my profile feature Notification Lists (Likes, Loves, Comments) The notification center displays interactions from other users on your content. Si ...

Standard Workflow # Search for available images docker search <image_name> # Download an image to the local machine docker pull <image_name> # Verify the downloaded image docker images # Launch a container from the image docker run [options] <image_name> # Halt a running container docker stop <container_id> # Delete ...

Redis provides efficient counting capabilities suitable for rate limiting and access tracking. Common use cases enclude blog view counters and SMS verification code frequency limits. Basic counters face challenges like preventing refresh-triggered increments. The solution involves tracking user access within specific time windows and storing da ...

Cart Storage StrategiesDatabase Storage: Traditional relational databases introduce performance bottlenecks under heavy read/write loads.Client-Side Storage: Browsers offer localStorage for persistent key-value data without expiration, and sessionStorage for data cleared upon tab closure. However, these lack server-side synchronization.Redis Ca ...

Integrating Redis as a Cache in Spring Boot To use Redis as a caching layer in Spring Boot, include the spring-boot-starter-cache and spring-boot-starter-data-redis dependencies. Spring Boot auto-configures a RedisTemplate and, when caching is enabled, a RedisCacheManager. Required Dependencies <dependency> <groupId>org.springfr ...