How to trigger oozie workflow when input data with dynamic name is available?

amydream08 — Tue, 27 Sep 2016 16:42:07 GMT

I am doing a oozie-cooridnator when input data with dynamic name is available. Here is the coordinator.xml:

 <coordinator-app name="${jobName} Coordinator" frequency="${coord:days(1)}" start="${startTime}" end="2099-01-01T00:00Z" timezone="UTC" xmlns="uri:oozie:coordinator:0.1">
   <datasets>
    <dataset name="gaSchema" frequency="30" initial-instance="${startTime}" timezone="UTC">
      <uri-template>${nameNode}/ga/bySchema/</uri-template>
      <done-flag>ga_${YEAR}${MONTH}${DAY}.avro</done-flag>
    </dataset>
  </datasets>
  <input-events>
      <data-in name="coordInput1" dataset="gaSchema">
          <start-instance>${coord:current(-23)}</start-instance>
          <end-instance>${coord:current(0)}</end-instance>
      </data-in>
   </input-events>
   <action>
      <workflow>
         <app-path>${wfApplicationPath}</app-path>
         <configuration>
            <property><name>date</name><value>${coord:formatTime(coord:nominalTime(), "yyyyMMdd")}</value></property>
            <property><name>jobTracker</name><value>${jobTracker}</value></property>
            <property><name>nameNode</name><value>${nameNode}</value></property>
            <property><name>jobName</name><value>${jobName}</value></property>  
          </configuration>
      </workflow>
   </action>
</coordinator-app>

When the file with current date arrives a hdfs folder then trigger workflow.

  <done-flag>ga_${YEAR}${MONTH}${DAY}.avro</done-flag>

It didn't work with dynamic name. I search it on internet, it seems it works on dynamic folder with fixed file name. for example:

 <uri-template>${nameNode}/ga/bySchema/${YEAR}${MONTH}${DAY}</uri-template>
  <done-flag>ga.avro</done-flag>

In this case, I have to create a lot of folders on hdfs because we import data every day.

Do you have any ideas how to trigger oozie workflow when input data with dynamic name is available?

Thanks

Re: How to trigger oozie workflow when input data with dynamic name is available?

amydream08 — Wed, 05 Oct 2016 18:14:23 GMT

I find a workaround solution. When a file is dropped in the folder /ga/bySchema/, a _SUCCESS file is created in that folder, <done-flag>_SUCCESS</done-flag> , then trigger workflow, in workflow.xml, I move the file (ga_${today}.avro) into an archive folder and delete _SUCCESS file. ${today} is defined in coordinator.xml. now working fine.

question How to trigger oozie workflow when input data with dynamic name is available? in Archives of Support Questions (Read Only)

How to trigger oozie workflow when input data with dynamic name is available?

Re: How to trigger oozie workflow when input data with dynamic name is available?