More than half a year has been doing hive-related development work, and using Oozie as the engine for hive workflows to manage Hadoop tasks. Oozie's task flow includes: Croodinator, workflow. Workflow is used to describe the order in which tasks are executed, and croodinator is used to define Oozie scheduled tasks.
If you need to do a recurring scheduled schedule, the basic need for three files
Job.properties records the job's properties workflow.xml use HPDL to define the process of the task and the branch coordinator.xml mainly used to do the workflow trigger conditions, to do timed triggering, You can also combine the run order of multiple workflowNow to explain a simple demo, ooize to explain job.properties the file is mainly set some parameter information a
Oozie error when calling Hive to execute HQLJava.lang.IllegalArgumentException:java.net.URISyntaxException:Relative Path in absolute uri:file:./tmp/yarn/ 32f78598-6ef2-444b-b9b2-c4bbfb317038/hive_2016-07-07_00-46-43_542_5546892249492886535-1https://issues.apache.org/jira/browse/ OOZIE-23804.1.0 version Fix modification org.apache.oozie.action.hadoop.JavaActionExecutor location: core\src\main\java\org\apache
Http://zhangrenhua.com Blog has moved
With the exception information, you can guess that the configuration was not read when the task was executed, so the default 0.0.0.0:8030 address was used. In order to verify whether this is the cause, we can modify the log level of log4j in the oozie/conf directory for debugging.Then, by viewing and tracking the source code of Hadoop, the correctness of the conjecture is verified, because
Workflow Notes 2 -- state machine workflow, Workflow workflowState Machine Workflow
In the previous Workflow Note 1-Workflow introduction, the flowchart Workflow is introduced. Later, M
test: with Oozie, execute Sqoop action to import data from DB2 into the Hive partition table. Places to be aware of:1, to add hive.metastore.uris this parameter. Otherwise, the data cannot be loaded into the hive table. Also, if there is more than one such operation in an XML literal, this parameter needs to be configured in each action.2, be aware of the escape character problem in XML. here in my SQL, there is a less than sign that needs to be rewri
internal three components:A) source: Acquisition source for docking with the data source for data acquisitionb) Sink: sink, collect data for the purpose of transmitting data to the next level agent or transfer data to the final storage systemc) Channel:angent Internal data transfer channel for passing data from source to sinkFlume supports numerous source and sink typesF Installation deployment for Lume1, Flume installation is very simple, only need to decompress, of course, if there is alread
pig-0.9.2 installation
and configuration
Http://www.cnblogs.com/linjiqin/archive/2013/03/11/2954203.html
Pig Instance One
http://www.cnblogs.com/linjiqin/archive/2013/03/12/2956550.html
Hadoop Pig Learning Notes (i) various kinds of SQL implemented in pig
Blog Category: Hadoop Pig http://guoyunsky.iteye.com/blog/1317084
this blog is an original article, reproduced please indicate the source: http://guoyunsky.iteye.com/blog/1317084
Welcome to the Hadoop Super group: 180941958
I Sina
Test environment cdh5.4.8,hue3.7
(1) Enter the Hue interface, login, here to re-establish a Oozie account, using the default admin can also.
(2) New task
(3) New
(4) Drag the SQOOP1 to the specified position
(5) Write the Sqoop statement in the interface that you want to execute, click Add
(6) Click on the gear, add sqoop to perform before the action needed to execute, here need to sqoop import before deleting the existing folder, that is Sq
1, Oozie.coord.application.path set the address of your configuration file
2. Coordinator.xml two parameters in this configuration file
Start do not exceed the present time, otherwise it will be executed irregularly, preferably set to the current time
TimeZone need to be set to East eight, gmt+08:00
3, can be executed by code
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SharePoint workflows are based on the Workflow Foundation. Let's talk about WF first. Only by having a correct understanding of WF can we find the SharePoint workflow solution.
Two of the most notable features of the Workflow Foundation
Directly supporting the State Machine Model
State machines are the theoretical basis of workflows, but in the past few
. Net workflow project display and code sharing (2) workflow engine and. net workflow
After introducing the Form class, we will introduce the workflow engine, which consists of four classes: process, process step, process instance, and process step instance.
Process type:1 [Serializable] 2 public class Flow 3 {4 [XmlAt
Windows Workflow Foundation (7)-sequential workflow and state machine Workflow
Sequential Workflow
MS-help: // Ms. winwf. v1.en/winwf_gettingstarted/html/EA
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BOS Project Note 9 daysToday's content arrangement:1. Workflow Concept2. Installation process designer plug-in (Eclipse)---- design Flowchart3. Create a activiti Database ( table)4 . activiti API operation Flow1. Workflow Concepts Work Flow (Workflow) , is " automation of part or whole of a business process in a computer application environment " , it is mainly t
Turn: WF Workflow technology insider-call Workflow workflows (develop persistent workflows) through Web Services, wfworkflow
Turn: http://www.cnblogs.com/carysun/archive/2009/01/11/receiveactivity.html
If you have been responsible for developing an enterprise ERP system or an OA system, workflow is no stranger to you. A Workf
Create a custom Web site workflow Activity
First, create a project that contains and tests the custom workflow activity.
Create a Site Workflow custom activity Item
1. Display the New Project dialog box by pointing to New on the File menu and clicking New Project.
2. Expand the SharePoint node under Visual C #, and then click 2010.
3. In the Templates pane,
Introduction to the workflow of a state machine
A state machine workflow consists of a set of states. A state is indicated as the initial state. Each state can receive a specific set of events. Depending on the event, you can switch to another state. The state machine workflow can have a final state. When transitioning to the final state, the
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