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https://issues.apache.org/jira/browse/RANGER-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colm O hEigeartaigh resolved RANGER-1289.
-----------------------------------------
Resolution: Fixed
Marking this as fixed. I've recommended to the RM for 0.7 that it gets included
there as well.
> 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
> Assignee: Qiang Zhang
> Labels: patch
> Fix For: 1.0.0
>
> Attachments:
> 0001-RANGER-1289-Error-occured-in-Ranger-KMS-function.patch
>
>
> 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.
> And in httpclient version 4.5.3, there is no problem. the new code is as
> follows:
> {code:java}
> public static List<NameValuePair> parse(final String s, final Charset
> charset) {
> if (s == null) {
> return Collections.emptyList();
> }
> final CharArrayBuffer buffer = new CharArrayBuffer(s.length());
> buffer.append(s);
> return parse(buffer, charset, QP_SEP_A, QP_SEP_S);
> }
> {code}
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