Example usage for org.apache.hadoop.mapred JobClient cancelDelegationToken

Introduction

In this page you can find the example usage for org.apache.hadoop.mapred JobClient cancelDelegationToken.

Prototype

public void cancelDelegationToken(Token<DelegationTokenIdentifier> token)
        throws InvalidToken, IOException, InterruptedException 

Source Link

Document

Cancel a delegation token from the JobTracker

Usage

From source file:azkaban.security.HadoopSecurityManager_H_1_0.java

License:Apache License

private void cancelMRJobTrackerToken(final Token<? extends TokenIdentifier> t, String userToProxy)
        throws HadoopSecurityManagerException {
    try {/*w w  w.j a v  a 2 s  . c  om*/
        getProxiedUser(userToProxy).doAs(new PrivilegedExceptionAction<Void>() {
            @SuppressWarnings("unchecked")
            @Override
            public Void run() throws Exception {
                cancelToken((Token<DelegationTokenIdentifier>) t);
                return null;
            }

            private void cancelToken(Token<DelegationTokenIdentifier> jt)
                    throws IOException, InterruptedException {
                JobConf jc = new JobConf(conf);
                JobClient jobClient = new JobClient(jc);
                jobClient.cancelDelegationToken(jt);
            }
        });
    } catch (Exception e) {
        e.printStackTrace();
        throw new HadoopSecurityManagerException("Failed to cancel Token. " + e.getMessage() + e.getCause());
    }
}

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From source file:azkaban.security.HadoopSecurityManager_H_2_0.java

License:Apache License

private void cancelMRJobTrackerToken(final Token<? extends TokenIdentifier> t, String userToProxy)
        throws HadoopSecurityManagerException {
    try {//from  ww  w.j  ava2  s.c o m
        getProxiedUser(userToProxy).doAs(new PrivilegedExceptionAction<Void>() {
            @SuppressWarnings("unchecked")
            @Override
            public Void run() throws Exception {
                cancelToken((Token<DelegationTokenIdentifier>) t);
                return null;
            }

            private void cancelToken(Token<DelegationTokenIdentifier> jt)
                    throws IOException, InterruptedException {
                JobConf jc = new JobConf(conf);
                JobClient jobClient = new JobClient(jc);
                jobClient.cancelDelegationToken(jt);
            }
        });
    } catch (Exception e) {
        throw new HadoopSecurityManagerException("Failed to cancel token. " + e.getMessage() + e.getCause(), e);
    }
}

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