Oozie work flow error - oozie

Question

I am trying to write a simple Oozie workflow to execute a simple hive script. The hive script is executing fine without any issue, but getting issue with work flow execution.
The workflow.xml is as below:
<workflow-app xmlns="uri:oozie:workflow:0.4" name="nielsen_dma_xref_intr_dly_load_wf">
<credentials>
<credential name="hive2_cred" type="hive2">
<property>
<name>hive2.jdbc.url</name>
<value>${hive2_jdbc_uri}</value>
</property>
<property>
<name>hive2.server.principal</name>
<value>${hive2_server_principal}</value>
</property>
</credential>
</credentials>
<start to="nielsen_dma_xref_intr_dly_load_wf_start"/>
<action name="hive_load_nielsen_dma_xref_oozie" cred='hive2_cred'>
<hive2 xmlns="uri:oozie:hive2-action:0.1">
<job-tracker>${jobTracker}</job-tracker>
<name-node>${nameNode}</name-node>
<job-xml>${hiveSiteXML}</job-xml>
<jdbc-url>${jdbc_hive}</jdbc-url>
<password>${password}</password>
<script>${scripts}/nielsen_dma_xref_load.hql</script>
<param>db_dbname_dbname=${db_dbname}</param>
</hive2>
<ok to="hive_load_nielsen_dma_xref_oozie"/>
<error to="fail"/>
</action>
<kill name="fail">
<message>Workflow failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
</kill>
<end name="nielsen_dma_xref_intr_dly_load_wf_completed"/>
</workflow-app>
All files are placed under /user/kchandr2/wf folder in HDFS
I am executing the wrokflow using the command oozie job -oozie http://<<hostname>>:11000/oozie -config /home/kchandr2/wf/nielsen_dma_xref_intr_dly_load_wf.properties -run -verbose >> /home/kchandr2/wf/Logs/nielsen_dma_xref_intr_dly_load_wf_$(date '+%Y%m%d').log 2>&1 where the properties file is placed in the local directory /home/kchandr2/wf
I am getting the Error: E0706 : E0706: Node cannot transition to itself node [hive_load_nielsen_dma_xref_oozie]

Answer 1

In your hive2 action
<action name="hive_load_nielsen_dma_xref_oozie" cred='hive2_cred'>
you have an "ok" transition to the very same action node
<ok to="hive_load_nielsen_dma_xref_oozie"/>
This is not allowed. That's why you get the error:
Error: E0706 : E0706: Node cannot transition to itself node [hive_load_nielsen_dma_xref_oozie]
Oozie Workflows are DAGs (Direct Acyclic Graph). You cannot have loops.