技术
- 应用基础设施与中间件 - 数据库管理和存储
- 基础设施即服务 (IaaS) - 云数据库
适用行业
- 建筑物
- 电信
适用功能
- 采购
- 产品研发
用例
- 行为与情绪追踪
- 时间敏感网络
服务
- 数据科学服务
- 测试与认证
关于客户
DENIC eG(德国网络信息中心)是 .de(互联网上的德国命名空间)的管理员和运营商。它拥有超过 1720 万个域名组合,是世界上最大的顶级域名注册管理机构之一。 DENIC 以非营利为基础运营,提供支持快速、安全、可靠地访问 .de 顶级域名下的网站和 Web 服务的服务。 DENIC 运营着一个全球分布的名称服务器网络,并负责通过域数据库、注册系统和 .de 域信息服务进行注册管理。为了不断改善互联网社区的用户体验,DENIC越来越注重数据分析。
挑战
DENIC eG 是德国互联网命名空间的管理员和运营商,由于数据分析的限制,在改善互联网社区的用户体验方面面临着挑战。与分析相关的数据分布在关系数据库、服务器日志数据和各种其他来源中。这些来源已用于监测和系统改进,但其分析功能有限,而且跨多种来源的交叉评估成本高昂或不可行。开发数据科学平台的初始步骤涉及使用基于关系 DBMS 的数据库。来自不同来源的数据由 Kubernetes 上的容器中的 Python 代理进行整合,并将结果写入数据库中的目标表。这种方法产生了大量的目标表和容器,这些表和容器难以管理并且变得有些过于复杂。此外,关系数据库仅适用于有限范围内的大量数据,因为查询的处理时间可能需要几分钟到几小时。
解决方案
DENIC 决定测试面向列的数据库,该数据库专为快速查询大量数据而设计。经过多次案例研究和会议演示后,数据科学团队开始了解 ClickHouse。初步测试和PoC表明,ClickHouse在集群运行方面很好地满足了DENIC的要求,并且只需要很小的服务器占用空间,使其具有成本效益。其中一个用例涉及 ClickHouse 表的设计,该表由 DENIC 注册表数据库的多个实体提供数据。数据由注册表数据库的 REST 接口作为时间序列事件提供,并由 Python 代理每天获取、处理并写入 ClickHouse 集群。保存数百万条数据记录后,出现了第一个明显的问题。 REST 接口传递的数据的处理速度明显变慢。选择与持有人更新关联的域状态的查询大约需要 5 分钟。在调查了这种行为之后,我们发现随着数据量的增加,这将花费越来越长的时间,从而使其在未来变得不可持续。经过多次尝试和优化,查询运行时间从5分钟优化到30秒左右。
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