Qiang Zhang created RANGER-1289:
-----------------------------------
Summary: Error occured in Ranger KMS function
Key: RANGER-1289
URL: https://issues.apache.org/jira/browse/RANGER-1289
Project: Ranger
Issue Type: Bug
Components: kms
Affects Versions: 0.7.0
Reporter: Qiang Zhang
Steps:
1.Start ranger-kms service
2.Configure KMS Client and restart hdfs
3.Create a key named key0 in the Ranger Web UI
4.Execute the following command in hadoop environment,create an encrypted zone
{code:java}
hdfs dfs -mkdir /keyZone
hdfs crypto -createZone -keyName key0 -path /keyZone
{code}
Error message poped out as below:
ranger-0.7.0-SNAPSHOT-kms/ews/logs/kms.log
{code:java}
2017-01-04 14:27:13,256 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)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
{code}
I analyzed the reasons,Ranger-Kms relies on httpclient version 4.5.1, there is
a bug, as follows:
org/apache/http/client/utils/URLEncodedUtils.java
{code:java}
public static List<NameValuePair> parse(String s, Charset charset) {
CharArrayBuffer buffer = new CharArrayBuffer(s.length());
buffer.append(s);
return parse(buffer, charset, new char[]{'&', ';'});
}
{code}
When the parameter 's' is null, it will pop out NullPointException.
But in httpclient version 4.3.6, there is no problem.
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