May 2024
Intermediate
425 pages
12h 29m
Chinese
Content preview from CockroachDB权威指南
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378
|
第
14
章
当节点退役过程完成之后，就可以关掉节点了。当
server.time_until_store_dead
指
定时间过期后，节点就可以从集群中移除了。
如果
CockroachDB
不能将范围移动到其他节点，那么退役将无限期地挂起。在这种情况
下，你可以添加另一个节点以允许此节点退役过程继续进行，或者重新配置该节点。相
关内容详见
CockroachDB
在线文档（
https://cockroa.ch/3uVMBgO
）。
14.4
故障排查
对使用过
CockroachDB
数据库的人群的非正式调查显示，
CockroachDB
用户的大量故障
排查请求与开发和编码或集群性能有关，例如：
·
我的数据检索延迟太长了，我该如何改进呢？
·
我在一个特定的节点上有很高的
CPU
占用，我如何排除故障？
·
为什么我遇到事务重试错误？
·
如何降低跨多区域集群的读延迟？
能了解到
CockroachDB
用户通常关心这类问题非常有帮助，这表明总的来说，
CockroachDB
本身是稳定和可靠的，用户不再为集群可用性而苦苦挣扎，而是主要追求
使数据库运行得更快这一永无止境的目标。
我们在第
8
章详细讨论了查询性能，我们将在第
15
章深入讨论集群性能。在这里，我
们想要检查一些可能导致集群中的节点变得无响应或不可用的情况。
在每一个版本中，
CockroachDB
团队都解决了许多问题，提高了性能和稳定性。每
个版本还添加了新的功能。因此，用户遇到的问题类型随着每个版本的发布而变化。
CockroachDB
团队维护了一个故障诊断综述，如果遇到这里没有涉及的问题，你可以查 ...
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