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  • pipeline

    千次阅读 2018-06-16 08:56:35
    一、回忆通信模型 二、流水线1.什么是流水线2.pipeline-Jedis实现 3.与原生M(mget,mset等)操作对比M操作是原子操作pipeline命令是非原子的,Redis服务器会对其命令集进行拆分。 三、使用建议...

    一、回忆通信模型

     

     

    二、流水线

    1.什么是流水线

    2.pipeline-Jedis实现

     

    3.与原生M(mget,mset等)操作对比

    M操作是原子操作

    pipeline命令是非原子的,Redis服务器会对其命令集进行拆分。

     

     三、使用建议

    展开全文
  • Pipeline

    2017-04-27 12:15:26
    Pipeline  Chapter Sub-Sections Getting Started with Pipeline Using a Jenkinsfile Branches and Pull Requests Extending with Shared Libraries Pipeline Syntax Table of ...


    Pipeline 

    This chapter will cover all aspects of Jenkins Pipeline, from running Pipelines to writing Pipeline code, and even extending Pipeline itself.

    This chapter is intended to be used by Jenkins users of all skill levels, but beginners may need to refer to some sections of "Using Jenkins" to understand some topics covered in this chapter.

    If you are not yet familiar with basic Jenkins terminology and features, start with Getting Started with Jenkins.

    What is Pipeline?

    Jenkins Pipeline is a suite of plugins which supports implementing and integrating continuous delivery pipelines into Jenkins. Pipeline provides an extensible set of tools for modeling simple-to-complex delivery pipelines "as code" via the Pipeline DSL[1]

    Typically, this "Pipeline as Code" would be written to a Jenkinsfile and checked into a project’s source control repository, for example:

    Jenkinsfile (Declarative Pipeline)
    pipeline {
        agent any 
    
        stages {
            stage('Build') { 
                steps { 
                    sh 'make' 
                }
            }
            stage('Test'){
                steps {
                    sh 'make check'
                    junit 'reports/**/*.xml' 
                }
            }
            stage('Deploy') {
                steps {
                    sh 'make publish'
                }
            }
        }
    }
    agent indicates that Jenkins should allocate an executor and workspace for this part of the Pipeline.
    stage describes a stage of this Pipeline.
    steps describes the steps to be run in this stage
    sh executes the given shell command
    junit is a Pipeline step provided by the JUnit plugin for aggregating test reports.

    Why Pipeline?

    Jenkins is, fundamentally, an automation engine which supports a number of automation patterns. Pipeline adds a powerful set of automation tools onto Jenkins, supporting use cases that span from simple continuous integration to comprehensive continuous delivery pipelines. By modeling a series of related tasks, users can take advantage of the many features of Pipeline:

    • Code: Pipelines are implemented in code and typically checked into source control, giving teams the ability to edit, review, and iterate upon their delivery pipeline.

    • Durable: Pipelines can survive both planned and unplanned restarts of the Jenkins master.

    • Pausable: Pipelines can optionally stop and wait for human input or approval before continuing the Pipeline run.

    • Versatile: Pipelines support complex real-world continuous delivery requirements, including the ability to fork/join, loop, and perform work in parallel.

    • Extensible: The Pipeline plugin supports custom extensions to its DSL [1] and multiple options for integration with other plugins.

    While Jenkins has always allowed rudimentary forms of chaining Freestyle Jobs together to perform sequential tasks, [2] Pipeline makes this concept a first-class citizen in Jenkins.

    Building on the core Jenkins value of extensibility, Pipeline is also extensible both by users with Pipeline Shared Libraries and by plugin developers. [3]

    The flowchart below is an example of one continuous delivery scenario easily modeled in Jenkins Pipeline:

    realworld pipeline flow
    Figure 1. Pipeline Flow

    Pipeline Terms

    Step

    A single task; fundamentally steps tell Jenkins what to do. For example, to execute the shell command make use the sh step: sh 'make'. When a plugin extends the Pipeline DSL, that typically means the plugin has implemented a new step.

    Node

    Most work a Pipeline performs is done in the context of one or more declared node steps. Confining the work inside of a node step does two things:

    1. Schedules the steps contained within the block to run by adding an item to the Jenkins queue. As soon as an executor is free on a node, the steps will run.

    2. Creates a workspace (a directory specific to that particular Pipeline) where work can be done on files checked out from source control.

    Depending on your Jenkins configuration, some workspaces may not get automatically cleaned up after a period of inactivity. See tickets and discussion linked from JENKINS-2111 for more information.
    Stage

    stage is a step for defining a conceptually distinct subset of the entire Pipeline, for example: "Build", "Test", and "Deploy", which is used by many plugins to visualize or present Jenkins Pipeline status/progress. [4]


    2. Additional plugins have been used to implement complex behaviors utilizing Freestyle Jobs such as the Copy Artifact, Parameterized Trigger, and Promoted Builds plugins

    https://jenkins.io/doc/book/pipeline/
    展开全文
  • pipeline-源码

    2021-03-31 08:16:32
    pipeline
  • 到底什么是Pipeline

    万次阅读 多人点赞 2020-05-05 17:13:10
    在各个领域,有一个词眼出现得越来越频繁,即Pipeline。 开始接触的时候,百思不得其解,要么觉得作者在 用个 洋名字 在装 高大上, 其实,鲁迅先生说过一句话,太阳底下没有新鲜事 一切的一切,都是纸老虎, ...

    在各个领域,有一个词眼出现得越来越频繁,即 Pipeline。

    开始接触的时候,百思不得其解,觉得作者在 用个 洋名字 在装 高大上,

    其实,鲁迅先生说过一句话,太阳底下没有新鲜事

     

    一切的一切,都是纸老虎,

    Pipeline,你 土味一点 你把它 翻译成  一条龙服务

    专业一点,叫 它  综合解决方案,就行。

    算法或者大数据分析里的

    可重复使用,针对新的数据,直接输入数据,可以得到结果。

     

    一个典型的机器学习构建包含若干个过程

     1、源数据ETL
    2、数据预处理
    3、特征选取
    4、模型训练与验证
    以上四个步骤可以抽象为一个包括多个步骤的流水线式工作,从数据收集开始至输出我们需要的最终结果。因此,对以上多个步骤、进行抽象建模,简化为流水线式工作流程则存在着可行性,对利用spark进行机器学习的用户来说,流水线式机器学习比单个步骤独立建模更加高效、易用。

    管道机制在机器学习算法中得以应用的根源在于,参数集在新数据集(比如测试集)上的重复使用。
     

    展开全文
  • pipeline_example:pipeline_example
  • Jenkins Pipeline

    2019-01-18 09:37:04
    Jenkins自动化编译 Pipeline流水线设置,语法,提升效率
  • Redis pipeline

    2019-02-26 19:27:05
    Redis pipeline

    Redis的pipeline(管道)功能在命令行中没有,但redis是支持pipeline的。首先我们来了解一下为什么会有 pipeline ?

    下面这个图,是客户端请求redis的流程:当客户端 请求 Redis 的时候,会有网络延迟,比如我们的一次请求是:
    总耗时 = 网络请求 + 执行命令 + 返回数据
    如果我们有1000 次的请求
    总耗时 = (网络请求 + 执行命令 + 返回数据)* 1000
    这种消耗是我们不能接收的。但是我们把需要执行的命令进行打包,进行一次去请求,就可以节省很多网络请求+返回数据的时间。
    在这里插入图片描述
    下面是 pipeline 的 请求示意图:
    在这里插入图片描述

    N个命令pipeline 命令(包含N个命令)
    N次网络+命令1次网络+N个命令

    N个命令 和 pipeline 的测试

    public String redisIndex(){
    
            Long time = System.currentTimeMillis();
            for (int i = 0;i < 1000;i++){
                redisTemplate.opsForValue().increment("b",1L);
            }
            log.info("多次请求 耗时:" + (System.currentTimeMillis() - time)+"毫秒");
    
            time = System.currentTimeMillis();
            List<Object> List = redisTemplate.executePipelined(new RedisCallback<Long>() {
    
                @Override
                public Long doInRedis(RedisConnection connection) throws DataAccessException {
    
                    connection.openPipeline();
                    for (int i = 0;i < 1000;i++){
                        connection.incrBy("a".getBytes(),1L);
                    }
                    connection.closePipeline();
    
                    return null;
                }
            });
            log.info("pipeline 耗时:" + (System.currentTimeMillis() - time)+"毫秒");
    
    
            return "";
        }
    

    执行结果:
    多次请求 耗时:43862毫秒
    pipeline 耗时:68毫秒

    从这个结果可以看出,两种的消耗的差距还是很大的。

    使用建议

    1. 每次 pipeline 的携带量不要过大,比如1W条,可以分10次,每次1000。

    之前准备学习的时候写博客,可是都没有坚持下去,希望这次可以有始有终。
    Redis 坚持第一天 :为什么要使用 redis ?
    Redis 坚持第二天 :Redis 的安装与启动
    Redis 坚持第三天 :Redis 使用配置文件启动,常见配置学习。
    Redis 坚持第四天 :

    1. Redis 五种常见的数据结构:String
    2. Redis 五种常见的数据结构:Hash
    3. Redis 五种常见的数据结构:List
    4. Redis 五种常见的数据结构:Set
    5. Redis 五种常见的数据结构:zset

    Redis 坚持第五天 :Redis 客户端:Jredis 和 spring-data-redis 整合。
    Redis 坚持第六天 :Redis 慢查询日志。
    Redis 坚持第七天 :Redis pipeline。

    展开全文
  • opengl pipeline

    2013-12-23 11:24:46
    opengl pipeline流程图
  • pipeline problem

    2015-09-11 13:41:14
    The Pipeline Problem Why you should reach out to local teachers and how to do it
  • pipeline外壳命令 一个实用程序,可简化建立Shell命令管道的过程,尤其是在进行数据探索时。 如果您发现自己正在编写shell代码,那么在无穷循环管道输出到less ,扫描遍历并进行更改的循环中, pipeline可以使您的...
  • sklearn pipeline

    千次阅读 2018-09-25 17:15:36
    众所周知,有很多数据转换步骤需要按照正确的步骤执行,sklearn提供了Pipeline类来处理这种顺序的操作步骤 from sklearn.pipeline import Pipeline from sklearn.preprocessing import StandardScaler num_pipeline ...
  • pipeline.py

    2020-03-17 18:50:57
    任务流水线。 类似于sklearn的pipeline,但是更灵活,可以自定义函数。 适用于一般自定义任务,也可适用于多算法模型模块。
  • Scrapy Pipeline

    千次阅读 2020-01-20 01:52:31
    Scrapy 中的 Pipeline 为我们提供了处理数据的功能,在实际开发中我们经常使用它来清洗/验证数据、去重和数据保存。在一个项目中会存在多种 Pipeline ,每个 Pipeline 都是一个 class ,其中包含了一些处理的 Item ...
  • pipeline入门

    2021-01-05 17:46:58
    1.什么是pipeline? 在jenkins官方文档是这样介绍pipeline的:Jenkins Pipeline (or simply “Pipeline”) is a suite of plugins which supports implementing and integrating continuous delivery ...
  • 分布式缓存Redis之Pipeline(管道)

    万次阅读 多人点赞 2017-12-11 09:21:56
    写在前面  本学习教程所有示例代码见GitHub:https://github.com/selfconzrr/Redis_Learning  Redis的pipeline(管道)功能在命令行中没有,但redis是支持pipeline的,而且在各个语言版的client中都有相应的实现。...
  • jenkinspipeline实战

    2019-02-22 17:14:04
    jenkins pipeline实战代码,入门代码,一看就会代码,喜欢的点个赞
  • Camera Processing pipeline

    2018-09-10 20:07:07
    Camera Processing pipeline 斯坦福课程,图像处理器基础介绍, 少量ASIC设计思路
  • Pipeline详解

    千次阅读 2021-01-01 22:53:10
    一、pipeline出现的背景: redis客户端执行一条命令分4个过程: 发送命令-〉命令排队-〉命令执行-〉返回结果 这个过程称为Round trip time(简称RTT, 往返时间),mget mset有效节约了RTT,但大部分命令(如...
  • jenkins pipeline关系

    2018-11-22 00:29:21
    Read more about how to integrate steps into your Pipeline in the Steps section of the Pipeline Syntax page
  • Pipeline大数据架构

    千次阅读 2019-04-03 13:18:28
    1.Pipeline大数据架构 (create by 王小雷) Pipeline大数据架构,面向大数据仓库和大数据处理平台。是基于lambda的大数据架构的变种,增加了企业级服务,而并非只是大数据组件的对切,是一种更落地的方案。 如同...
  • Jenkins高级篇之Pipeline语法篇-1-Pipeline基本介绍.pdf
  • 安进Pipeline.pdf

    2021-04-19 00:29:10
    安进Pipeline.pdf
  • 辉瑞 Pipeline.pdf

    2021-04-19 00:29:06
    辉瑞 Pipeline.pdf
  • 罗氏 Pipeline.pdf

    2021-04-19 00:29:01
    罗氏 Pipeline.pdf
  • 礼来 Pipeline.pdf

    2021-04-19 00:29:00
    礼来 Pipeline.pdf
  • 赛诺菲 Pipeline.pdf

    2021-04-19 00:28:57
    赛诺菲 Pipeline.pdf

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