I have successfully used the Apache Hadoop KMS with HDFS for encryption. I'm now attempting to integrate the Ranger 0.7.0 KMS implementation. I feel I have configured everything correctly, but I'm getting the following exceptions when attempting to create a key.
On the command line: [pebradley@cognosprod hadoop-2.7.3]$ bin/hadoop key create lukas l has not been created. java.io.IOException: HTTP status [500], message [Internal Server Error] java.io.IOException: HTTP status [500], message [Internal Server Error] at org.apache.hadoop.util.HttpExceptionUtils.validateResponse( HttpExceptionUtils.java:169) at org.apache.hadoop.crypto.key.kms.KMSClientProvider.call( KMSClientProvider.java:546) at org.apache.hadoop.crypto.key.kms.KMSClientProvider.call( KMSClientProvider.java:504) at org.apache.hadoop.crypto.key.kms.KMSClientProvider.createKeyInternal( KMSClientProvider.java:677) at org.apache.hadoop.crypto.key.kms.KMSClientProvider. createKey(KMSClientProvider.java:685) at org.apache.hadoop.crypto.key.KeyShell$CreateCommand. execute(KeyShell.java:483) at org.apache.hadoop.crypto.key.KeyShell.run(KeyShell.java:79) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) at org.apache.hadoop.crypto.key.KeyShell.main(KeyShell.java:515) In the KMS Plugin logs within /usr/local/ranger-kms/ews/logs/kms.log: 2017-04-24 14:41:27,473 ERROR [webservices-driver] - Servlet.service() for servlet [webservices-driver] in context with path [/kms] threw exception java.lang.NullPointerException at org.apache.http.client.utils.URLEncodedUtils.parse( URLEncodedUtils.java:235) at org.apache.hadoop.security.token.delegation.web. ServletUtils.getParameter(ServletUtils.java:48) at org.apache.hadoop.security.token.delegation.web. DelegationTokenAuthenticationHandler.managementOperation( DelegationTokenAuthenticationHandler.java:171) at org.apache.hadoop.security.authentication.server. AuthenticationFilter.doFilter(AuthenticationFilter.java:514) at org.apache.hadoop.crypto.key.kms.server.KMSAuthenticationFilter.doFilter( KMSAuthenticationFilter.java:129) In the very least, the Hadoop command line is communicating with KMS for the operation, but it appears as if something is missing. Any insights? Lukas
