etcd is a distributed and reliable key-value storage system designed to store critical data in distributed systems. It provides a reliable method for storing data that needs to be accessed by distributed systems or clusters of devices. etcd can elegantly handle leader elections during network partitions and tolerate device failures, even at the leader connection point. The interface is simple and uses standard HTTP tools to load and unload values, such as curl. Key-value storage stores data in a hierarchical directory structure, similar to standard file systems. It supports watching for changes in specific keys or directories and can respond to value changes. Optional SSL client certificate verification is available with a load capacity of 1000 operations per second per case. Optional TTL for keys can be appropriately allocated using the Raft protocol.
软件特点
简洁的API:支持使用curl等HTTP JSON方法的客户API,易于集成和使用。
安全性:可选SSL客户端证书验证,确保数据传输的安全性和完整性。
高效性:单案例可达到每秒1000次写操作,满足高性能需求。
可靠性:应用Raft协议实现分布式一致性,确保数据的一致性和可靠性。
如何使用
配置etcd集群:根据需求设置etcd节点的数量和配置参数。
使用curl等HTTP客户端:通过HTTP API发送请求来读写数据。
设置监控:通过watch API监控特定键或目录的变化。
管理证书:如果需要,配置SSL客户端证书验证以增强安全性。
使用TTL:为键设置可选的TTL,以自动过期旧数据。
etcd以其分布式、可靠性和高效性,成为分布式系统中数据存储和管理的理想选择。