What is Azkaban? (a)Functional characteristics of Azkaban (II.)Architecture of the Azkaban (iii)Not much to say, directly on the dry goods!Http://www.cnblogs.com/zlslch/category/938837.htmlCurrently, there are two of the most popular Hadoop workflow engine schedulers Azkaban and Oozie on the market.Specifically, you can look further at my blog.Azkaban Concept Learning Series http://www.cnblogs.com/zlslch/ca
Original link: http://blog.ywheel.cn/post/2016/06/12/hive_in_oozie_workflow/
By building and maintaining big data platforms in the company and providing it to other data analysts, Hive is the most (almost unique) service that non-programmers use. Of course, in daily data processing, in order to simplify the coding effort and use the results accumulated by the data analyst, we can use or simply modify the HQL scripts they provide for data processing, and dispatch hive jobs using
High-availability Hadoop platform-Oozie Workflow1. Overview
When developing and using Hadoop-related applications, we can directly use Crontab to schedule related applications without complicated services and few tasks. Today, we will introduce the system for unified management of various scheduling tasks. The following is the content directory shared today:
Let's start tod
This article source: http://blog.csdn.net/bluishglc/article/details/46049817 prohibited any form of reprint, or will entrust CSDN official maintenance rights!Oozie three ways to configure workflow propertiesOozie There are three ways to provide attribute property configuration to a workflow:
App Deployment folder root directory: Config-default.xml
High-availability Hadoop platform-Hadoop Scheduling for Oozie Workflow1. Overview
In the "high-availability Hadoop platform-Oozie Workflow" article, I will share with you how to integrate a single plug-in such as Oozie. Today, we will show you how to use Oozie to create rel
Written in front: the institute built a set of CDH5.9 version of the Hadoop cluster, previously used to use the command line to operate, these days try to use Oozie in hue in the workflows to execute the MR Program, found stepping on a lot of pits (not used before, and did not find the corresponding tutorial, if you have to know the good tutorial may leave a Feeling Of the "excitation").Pit 1: The standard Mr Program can normally output the correct re
Author Boris Lublinsky, Michael Segel , translator Surtani released on August 18, 2011 | Note:Qcon Global Software Development Conference (Beijing) April 2016 21-23rd, Learn more!
Share to: Weibo facebooktwitter Youdao Cloud Note email sharing
My list of reading
Tasks performed in Hadoop sometimes require multiple map/reduce jobs to be connected together in order to achieve the goal.  in the Hadoop ecosystem, there is a relatively new component called
can be viewed as NamenodeJobtracker-Job Management services for parallel computingNode Services for Datanode-hdfsTasktracker-Job execution services for parallel computingManagement Services for Hbase-master-hbaseHbase-regionserver-Provide services for client-side inserts, deletes, query data, etc.Zookeeper-server-zookeeper collaboration and Configuration Management ServicesManagement Services for Hive-server-hiveHive-metastore-hive, used for type checking and parsing of meta dataOozie-
DescriptionTasks performed in Hadoop sometimes require multiple map/reduce jobs to be connected together in order to achieve the goal. In the Hadoop ecosystem,Oozie allows us to combine multiple map/reduce jobs into a single logical unit of work, To accomplish larger tasks. PrincipleOozie is a java Web application that runs in the Java servlet container- the Tomcat --in, and use the database to store the following:Workflow definitionCurrently running
1. How does oozie view task logs?
The oozie job ID can be used to view detailed process information. The command is as follows:
The process details are as follows:
Bin/oozie job-oozie http: // hadoop-01: 11000/oozie-config/tmp/examples/apps/Map-Reduce/job. properties-run
Error: e0902: e0902: exception occured: [org. Apache. hadoop. IPC. RemoteException: User: oozie is not allowed to impersonate hadoop]
Restart the hadoop cluster after adding the following configura
-station notification mechanism and more complex user access control mechanism.II) Selection: Hue+oozieApplication Scenario: Hadoop cluster Computing task scheduling and management platform.2.1. Difficulties faced by data platform running dataE-Commerce Data Platform report dimension has many kinds, there are general briefing angle, operational angle, the media point of view, etc., can also have goods, merchants, users, competition and other dimensions, as well as daily, weekly and monthly repor
First, introduceOozie is a Hadoop-based workflow Scheduler that can submit different types of jobs programmatically through the Oozie Client, such as mapreduce jobs and spark jobs to the underlying computing platform, such as Cloudera Hadoop.Quartz is an open-source scheduling software that provides a variety of triggers and listeners for scheduling execution of tasksThe following uses Quartz +
About the execution conditions of input-events and Done-flag workflows for OozieWhen a workflow specified by coordinator has entered the Execution time window, Oozie first checks that all input-events have "occurred" (satisfied), and the check is mainly divided into two aspects:
Does the specified file or folder already exist?
If Done-flag is specified, check if the Done-flag file exists
Ext.: http://www.cnblogs.com/carysun/archive/2009/01/11/receiveactivity.htmlIf you have ever been in charge of developing an ERP system or OA system, the workflow will not be a stranger to you. A workflow (Workflow) is an abstraction, generalization, and description of the business rules between a workflow and its vari
idea that we can place our shared jar packages in one place, and then create a corresponding soft connection under/usr/hdp/current/hive-webhcat/share/hcatalog, for example, We put the jar uniformly under the/usr/lib/share-lib and then set up the soft connection: -u-s /usr/lib/share-lib/elasticsearch-hadoop-2.1.0.Beta4.jar /usr/hdp/current/hive-webhcat/share/hcatalog/elasticsearch-hadoop-2.1.0.Beta4.jarHow to specify a third-party jar package in OozieIf your hive script that relies on a third-pa
Impala SQL scripts cannot be executed directly in Oozie like the execution of Hive SQL. There is currently no Impala operation, so you must use the shell operation called Impala-shell. The shell script that calls Impala-shell must also contain environment variables that set the location of the Python eggs. This is an example of a shell script (impala_overwrite.sh):
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
and provide relevant evidence. A staff member will contact you within 5 working days.