Hadoop Security Guide
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Troubleshooting Ranger KMS

Table 6.8. Troubleshooting Suggestions

Not able to install Ranger KMSCheck to see if ranger admin is running, verify DB.
Not able to start Ranger KMSCheck the Ranger KMS log. If there is a message about illegal key size, make sure unlimited strength JCE is available.
Hadoop key commands failMake sure Ranger KMS client properties are updated in hdfs config.
Not able to create keys from Ranger UIMake sure that the keyadmin user (or any custom user) configured in the KMS repository is added to proxy properties in the custom kms-site.xml file.