# Queries are unexpectedly failing for Ranger integration with Amazon EMR
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**Check Apache Ranger plugin logs (Apache Hive, EMR RecordServer, EMR SecretAgent, etc., logs)**

This section is common across all applications that integrate with the Ranger plugin, such as Apache Hive, EMR Record Server, and EMR SecretAgent.

**Common Error Messages**


| Error message | Cause | 
| --- | --- | 
|  ERROR PolicyRefresher:272 - [] PolicyRefresher(serviceName=policy-repository): failed to find service. Will clean up local cache of policies (-1)   |  This error messages means that the service name you provided in the EMR security configuration does not match a service policy repository in the Ranger Admin server.  | 

If within Ranger Admin server your AMAZON-EMR-SPARK service looks like the following, then you should enter **amazonemrspark** as the service name.

![Ranger Admin server showing AMAZON-EMR-SPARK troubleshooting.](http://docs.aws.amazon.com/emr/latest/ManagementGuide/images/ranger-amazon-emr-spark-troubleshooting.png)