Oozie coordinator - file event based trigger - multiple firing - oozie

Question

Im trying to understand why an oozie 4.2 based coordinator job which should wait for a dataset fires multiple times. My coordinator job looks like this
<coordinator-app name="ConfirmDataMasterTrigger"
frequency="${frequencyMins}"
start="${startTime}"
end="${endTime}"
timezone="${timeZoneDef}"
xmlns="uri:oozie:coordinator:0.4"
xmlns:sla="uri:oozie:sla:0.2">
<controls>
<timeout>${TimeOutMins}</timeout>
<concurrency>${Concurrency}</concurrency>
<execution>${Execution}</execution>
</controls>
<datasets>
<dataset name="inputDS"
frequency="${coord:days(1)}"
initial-instance="${startTime}"
timezone="${timeZoneDef}">
<uri-template>${triggerFileDir}</uri-template>
<done-flag></done-flag>
</dataset>
</datasets>
<input-events>
<data-in name="ConfirmDataMasterTrigInput"
dataset="inputDS">
<instance>${coord:current(0)}</instance>
</data-in>
</input-events>
<action>
<workflow>
<app-path>${workflowAppPath}</app-path>
<configuration>
<property>
<name>SaveDateString</name>
<value>${coord:formatTime(coord:actualTime(),"-yyyyMMdd-HHmmss")}</value>
</property>
<property>
<name>WaitForThisInputData</name>
<value>${coord:dataIn('ConfirmDataMasterTrigInput')}</value>
</property>
</configuration>
</workflow>
</action>
With a properties file that looks like this
nameNode=hdfs://hc1m1.nec.co.nz:8020
jobTracker=hc1r1m2.nec.co.nz:8050
hdfsUser=oozie
wfProject=ConfirmDataMaster
oozie.libpath=${nameNode}/user/oozie/share/lib
oozie.use.system.libpath=true
oozie.wf.rerun.failnodes=true
moveFile=ConfirmDataMaster_edit.csv
sourceDir=${nameNode}/mule/sheets/input/ConfirmDataMaster/
targetDir=/mule/sheets/store/
sourceFile=${sourceDir}${moveFile}
targetFile=${targetDir}${moveFile}
frequencyMins=10
startTime=2016-07-31T12:00Z
endTime=2099-01-01T12:00Z
timeZoneDef=GMT+12:00
TimeOutMins=10
Concurrency=1
Execution=FIFO
triggerDir=trigger/
triggerFileDir=${sourceDir}${triggerDir}
doneFlag=trigger.dat
workflowAppPath=${nameNode}/user/${hdfsUser}/wf/${wfProject}
oozie.coord.application.path=${nameNode}/user/${hdfsUser}/wf/${wfProject}
I am not having a problem in getting a work flow to to be triggered by a
coordinator given a data set based event. What I am seeing is that the under lying workflow is continuously triggered. Can anyone advise changes I should make or my error. Obviously my workflow cleans up and deletes the trigger path. Thanks in advance.

Answer 1

Ill answer my own question because Ive worked out the solution and its a bit obvious really. I was just a little confused. The Firing frequency is controlled by the coordinator and data set frequencies and also the trigger directory and file. If you dont want a trigger file then leave done-flag empty. If that is not added then a default flag file is _SUCCESS.
So if the trigger is available the workflow will fire at those frequencies specified. So I have changed my cord and data set frequencies to be 30 ( mins ). As a final task my workflow removes the trigger.