[jira] [Created] (RANGER-1989) Ranger Admin may fail to start after enabling SSLHadoop GroupMapping

["Hajime Osako (JIRA)" <ji...@apache.org>]

Hajime Osako created RANGER-1989:
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             Summary: Ranger Admin may fail to start after enabling SSLHadoop GroupMapping
                 Key: RANGER-1989
                 URL: https://issues.apache.org/jira/browse/RANGER-1989
             Project: Ranger
          Issue Type: Bug
          Components: admin
    Affects Versions: 0.7.0
            Reporter: Hajime Osako


Opening this Jira to request Ranger community to add commons-io-x.y.jar in the classpath with default installation.

Thank you.

 

After setting up Hadoop GroupMapping with "hadoop.security.group.mapping.provider.ldap.bind.password.*file*" for HDFS and YARN, Ranger Admin may fail to start if SSL is enabled.

The following error is in catalina.out:
{noformat}
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/io/Charsets
at org.apache.hadoop.security.LdapGroupsMapping.extractPassword(LdapGroupsMapping.java:667)
at org.apache.hadoop.security.LdapGroupsMapping.setConf(LdapGroupsMapping.java:588)
...{noformat}
This is because, in LdapGroupsMapping.setConf() above, if ".bind.password" is empty, it tries to extract from ".bind.password.file" with extractPassword(), and inside of this method org.apache.commons.io.Charsets is used, however, commons-io.jar doesn't seem to be in the Ranger Admin classpath.
h3. WORKAROUND:

An example of workarounds is simply copying commons-io-x.y.jar, like below: 

cp -p /usr/hdp/current/ranger-admin/ews/webapp/WEB-INF/lib/commons-io-2.4.jar /usr/hdp/current/ranger-admin/ews/lib/



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