[jira] [Updated] (RANGER-1289) Error occured in Ranger KMS function
[
https://issues.apache.org/jira/browse/RANGER-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Colm O hEigeartaigh updated RANGER-1289:
Fix Version/s: 1.0.0
> 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 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 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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[jira] [Updated] (RANGER-1289) Error occured in Ranger KMS function
[
https://issues.apache.org/jira/browse/RANGER-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Qiang Zhang updated RANGER-1289:
Attachment: (was:
0001-RANGER-1289-Error-occured-in-Ranger-KMS-function.patch)
> 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
> 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 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 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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[jira] [Updated] (RANGER-1289) Error occured in Ranger KMS function
[
https://issues.apache.org/jira/browse/RANGER-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Qiang Zhang updated RANGER-1289:
Attachment: 0001-RANGER-1289-Error-occured-in-Ranger-KMS-function.patch
> 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
> 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 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 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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(v6.3.15#6346)
[jira] [Updated] (RANGER-1289) Error occured in Ranger KMS function
[
https://issues.apache.org/jira/browse/RANGER-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Qiang Zhang updated RANGER-1289:
Attachment: 0001-RANGER-1289-Error-occured-in-Ranger-KMS-function.patch
> 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
> 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 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 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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[jira] [Updated] (RANGER-1289) Error occured in Ranger KMS function
[
https://issues.apache.org/jira/browse/RANGER-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Qiang Zhang updated RANGER-1289:
Description:
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 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 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}
was:
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
