oozie-coordinator

I would like to know if it is possible/how to force a coordinator to materialize or instantiate workflow at regular intervals even if previous instantiated workflow are not done yet. Let me explain: I have a simple coordinator looking like this: <coordinator-app name="myApp" frequency="${coord:hours(3)}" start="2015-01-01T0:00Z" end="2016-01-01T00:00Z" timezone="UTC" xmlns="uri:oozie:coordinator:0.4"> <action> <workflow> <app-path>${myPath}/workflow.xml</app-path> </workflow> </action> </coordinator-app> The frequency is set to 3 hours. Every 3 hours, I expect the coordinator to "materialize"

I have a shell script in HDFS. I have scheduled this script in oozie with the following workflow. Workflow: <workflow-app name="Shell_test" xmlns="uri:oozie:workflow:0.5"> <start to="shell-8f63"/> <kill name="Kill"> <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message> </kill> <action name="shell-8f63"> <shell xmlns="uri:oozie:shell-action:0.1"> <job-tracker>${jobTracker}</job-tracker> <name-node>${nameNode}</name-node> <exec>shell.sh</exec> <argument>${input_file}</argument> <env-var>HADOOP_USER_NAME=${wf:user()}</env-var> <file>/user/xxxx/shell_script/lib

How can I re-run any action which was failed in the workflow automatically? I know the way to rerun manually from command line or thorough hue. $oozie job -rerun ... Is there any parameter we can set or provide in workflow to retry automatically when action fails? Most of the time, when an action fails in the Oozie workflow, you need to debug and fix the error and rerun the workflow. But there are times, when you want Oozie to retry the action after an interval, for fixed number of times before failing the workflow. You can specify the retry-max and retry-interval in the action definition.

I have a shell script which executes sqoop job . The script is below. !#/bin/bash table=$1 sqoop job --exec ${table} Now when I pass the table name in the workflow I get the sqoop job to be executed successfully. The workflow is below. <workflow-app name="Shell_script" xmlns="uri:oozie:workflow:0.5"> <start to="shell"/> <kill name="Kill"> <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message> </kill> <action name="shell_script"> <shell xmlns="uri:oozie:shell-action:0.1"> <job-tracker>${jobTracker}</job-tracker> <name-node>${nameNode}</name-node> <exec>sqoopjob

I installed oozie 4.1.0 on a Linux machine by following the steps at http://gauravkohli.com/2014/08/26/apache-oozie-installation-on-hadoop-2-4-1/ hadoop version - 2.6.0 maven - 3.0.4 pig - 0.12.0 Cluster Setup - MASTER NODE runnig - Namenode, Resourcemanager ,proxyserver. SLAVE NODE running -Datanode,Nodemanager. When I run single workflow job means it succeeds. But when I try to run more than one Workflow job i.e. both the jobs are in accepted state Inspecting the error log, I drill down the problem as, 014-12-24 21:00:36,758 [JobControl] INFO org.apache.hadoop.ipc.Client - Retrying connect