automatically. Then it is required to create the pipeline definition. Pipeline is some sort of preprocessing of data before putting data in indices. The following command can be used to create pipeline new parameter in Zabbix server configuration: 16 ### Option: HistoryStorageDateIndex # Enable preprocessing of history values in history storage to store values in different indices based on date. # 0 - HistoryStorageDateIndex否 用历史数据预处理，可 以将数据存储到不同的 基于时间的索引: 0 - 禁止 1 - 允许 HistoryStorageDateIndexno 0 Enable preprocessing of history values in history storage to store values in different indices based on date:

automatically. Then it is required to create the pipeline definition. Pipeline is some sort of preprocessing of data before putting data in indices. The following command can be used to create pipeline the new parameter in Zabbix server configuration: ### Option: HistoryStorageDateIndex # Enable preprocessing of history values in history storage to store values in different indices based on date. # 0 - HistoryStorageDateIndex否 用历史数据预处理，可 以将数据存储到不同的 基于时间的索引: 0 - 禁止 1 - 允许 HistoryStorageDateIndexno 0 Enable preprocessing of history values in history storage to store values in different indices based on date:

automatically. Then it is required to create the pipeline definition. Pipeline is some sort of preprocessing of data before putting data in indices. The following command can be used to create pipeline the new parameter in Zabbix server configuration: ### Option: HistoryStorageDateIndex # Enable preprocessing of history values in history storage to store values in different indices based on date. # 0 - HistoryStorageDateIndex否 用历史数据预处理，可 以将数据存储到不同的 基于时间的索引: 0 - 禁止 1 - 允许 HistoryStorageDateIndexno 0 Enable preprocessing of history values in history storage to store values in different indices based on date:

s.html 查看’‘skin- param’‘的参数. PlantUML 语言参考指引 (1.2019.6) 146 / 173 19 PREPROCESSING 19 Preprocessing Some minor preprocessing capabilities are included in PlantUML, and available for all diagrams. can use expression in condition. PlantUML 语言参考指引 (1.2019.6) 147 / 173 19.4 Void function 19 PREPROCESSING • else is also implemented @startuml !$a = 10 !$ijk = "foo" Alice -> Bob : A !if ($ijk == "foo") init_class("foo2") msg("foo1", "foo2") @enduml PlantUML 语言参考指引 (1.2019.6) 148 / 173 19.5 Return function 19 PREPROCESSING Variables defined in functions are local. It means that the variable is destroyed when the function

s.html 查看’‘skin- param’‘的参数. PlantUML 语言参考指引 (1.2019.9) 146 / 173 19 PREPROCESSING 19 Preprocessing Some minor preprocessing capabilities are included in PlantUML, and available for all diagrams. Bob : $cd Alice -> Bob : $ef @enduml PlantUML 语言参考指引 (1.2019.9) 147 / 173 19.3 Conditions 19 PREPROCESSING 19.3 Conditions • You can use expression in condition. • else is also implemented @startuml init_class("foo2") msg("foo1", "foo2") @enduml PlantUML 语言参考指引 (1.2019.9) 148 / 173 19.5 Return function 19 PREPROCESSING Variables defined in functions are local. It means that the variable is destroyed when the function

Items Zabbix的一个使用场景 主从监控项 将Zabbix的一次数据采集获取到的多个值，分别赋值给各个从属监控项 （相关项目）监控项 DEPENDENT ITEM 数据预处理 PREPROCESSING 第一步： 第二步： 2步操作 2个Zabbix的功能 主监控项准备 Dependent Items 创建一个自定义监控项： 修改配置agent配置文件：/home/zabbi al/config/items/preprocessing/preprocessing_details?s[]=prepr ocessing 获取监控数据 数据预处理 存入数据库 官方文档地址： 主从监控项 Dependent Items 第二步：配置一个数据预处 理 Item PropertiesàPreprocessing àPreprocessing steps àDone 监控项配置页面 如果主监控项在模板中而从属监控项创建在主 机上，该从属监控项将无法通过模板导出。 l 主监控项历史数据保存时间可以设置为0 主从监控项 Dependent Items 数据预处理 PREPROCESSING l 5.0版本前，所有预处理操作在Server端处理，5.0版本及以后预 处理操作在Proxy端操作。 l 预处理的相关配置项：StartPreprocessors= 默认为3 l

databaseBackgroundColor Aqua @enduml PlantUML 语言参考指引 (1.2019.1) 123 / 145 17 PREPROCESSING 17 Preprocessing Some minor preprocessing capabilities are included in PlantUML, and available for all diagrams. and cannot start with a digit. PlantUML 语言参考指引 (1.2019.1) 124 / 145 17.4 Macro definition 17 PREPROCESSING @startuml !define SEQUENCE (S,#AAAAAA) Database Sequence !define TABLE (T,#FFAAAA) Database send(Bob, Alice, ok) @enduml PlantUML 语言参考指引 (1.2019.1) 125 / 145 17.5 Adding date and time 17 PREPROCESSING 17.5 Adding date and time You can also expand current date and time using the special variable

Examples 16 SKINPARAM COMMAND PlantUML 语言参考指引 (1.2019.3) 134 / 156 17 PREPROCESSING 17 Preprocessing Some minor preprocessing capabilities are included in PlantUML, and available for all diagrams. and cannot start with a digit. PlantUML 语言参考指引 (1.2019.3) 135 / 156 17.4 Macro definition 17 PREPROCESSING @startuml !define SEQUENCE (S,#AAAAAA) Database Sequence !define TABLE (T,#FFAAAA) Database send(Bob, Alice, ok) @enduml PlantUML 语言参考指引 (1.2019.3) 136 / 156 17.5 Adding date and time 17 PREPROCESSING 17.5 Adding date and time You can also expand current date and time using the special variable

Examples 16 SKINPARAM COMMAND PlantUML 语言参考指引 (1.2019.2) 134 / 156 17 PREPROCESSING 17 Preprocessing Some minor preprocessing capabilities are included in PlantUML, and available for all diagrams. and cannot start with a digit. PlantUML 语言参考指引 (1.2019.2) 135 / 156 17.4 Macro definition 17 PREPROCESSING @startuml !define SEQUENCE (S,#AAAAAA) Database Sequence !define TABLE (T,#FFAAAA) Database send(Bob, Alice, ok) @enduml PlantUML 语言参考指引 (1.2019.2) 136 / 156 17.5 Adding date and time 17 PREPROCESSING 17.5 Adding date and time You can also expand current date and time using the special variable

Examples 18 SKINPARAM COMMAND PlantUML 语言参考指引 (1.2019.4) 141 / 164 19 PREPROCESSING 19 Preprocessing Some minor preprocessing capabilities are included in PlantUML, and available for all diagrams. and cannot start with a digit. PlantUML 语言参考指引 (1.2019.4) 142 / 164 19.4 Macro definition 19 PREPROCESSING @startuml !define SEQUENCE (S,#AAAAAA) Database Sequence !define TABLE (T,#FFAAAA) Database send(Bob, Alice, ok) @enduml PlantUML 语言参考指引 (1.2019.4) 143 / 164 19.5 Adding date and time 19 PREPROCESSING 19.5 Adding date and time You can also expand current date and time using the special variable