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自监控
夜莺 5.x 版本有 n9e-webapi 和 n9e-server 两个模块，这俩模块都暴露了 /metrics 接口，所以，夜莺自身组件的监控，就有两个做法，做法一： 搞一个单独的 Prometheus，抓取 n9e-webapi 和 n9e-server 的 /metrics 的数据 在这个单独的 Prometheus 里配置 up 指标的告... -
第一章：多线程入门
学习目标 1. 什么是线程与多线程 1.1 线程的概念 1.2 多线程的概念 2. 为什么需要多线程编程 2.1 提高CPU利用率 2.2 提高程序响应性 2.3 更好的资源利用 2.4 简化复杂问题的处理 3. Java中实现多线程的两种基本方式 3.1 继承Thread类 3.2 实现Runnable接口 3.3 两种方式的比较 ... -
System Metadata Tables
Accumulo tracks information about tables in metadata tables. The metadata for most tables is contained within the metadata table in the accumulo namespace, while metadata for that... -
Switching to an Oracle Database After Installation
About This Task Prerequisites Steps About This Task If you want to use an Oracle database with SAM or Schema Registry after you have performed your initial HDF installation o... -
Dependent
Dependent 节点 综述 创建任务 任务参数 任务样例 Dependent 节点 综述 Dependent 节点，就是依赖检查节点 。比如 A 流程依赖昨天的 B 流程执行成功，依赖节点会去检查 B 流程在昨天是否有执行成功的实例。 创建任务 点击项目管理 -> 项目名称 -> 工作流定义，点击“创建工作流”按钮，进入 DAG 编... -
Comparability, Equality, Orderability and Equivalence
Concepts Comparability Equality Orderability Equivalence Comparability and equality Comparability Orderability Between different Agtypes AGE already has good semantics for... -
Enterprise WeChat
Description Key features Options url [string] mentioned_list [array] mentioned_mobile_list [array] common options Example Changelog 2.2.0-beta 2022-09-26 2.3.0-beta 2022-1... -
5.6 Verbatim code chunks
Show a verbatim inline expression Typically we write code chunks and inline expressions that we want to be parsed and evaluated by knitr . However, if you are trying to write a t... -
Transactions
Locking Non-Transactional When managing the persistence of objects using a PersistenceManager it is common to handle all datastore operations in a transaction. For this reason ... -
Methods
String Methods Collection Methods List Methods Map Methods Temporal Methods Enum Methods Optional Methods Other Methods When writing the “filter” for a JDOQL Query you can...
