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obtain HBASE_AUTH_TOKEN if kerberos security is enabled #16

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Merged
galarragas merged 1 commit into from
Sep 3, 2014
Merged

obtain HBASE_AUTH_TOKEN if kerberos security is enabled #16

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28 changes: 27 additions & 1 deletion src/main/java/parallelai/spyglass/hbase/HBaseTap.java
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,11 @@

package parallelai.spyglass.hbase;

import cascading.tap.TapException;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.security.Credentials;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.token.Token;
import parallelai.spyglass.hbase.HBaseConstants.SplitType;

import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
Expand Down Expand Up @@ -179,10 +184,30 @@ else if (isUpdate()) {
for( SinkConfig sc : sinkConfigList) {
sc.configure(conf);
}

obtainToken(conf);

super.sinkConfInit(process, conf);
}

private void obtainToken(JobConf conf) {
if (User.isHBaseSecurityEnabled(conf)) {
String user = conf.getUser();
LOG.info("obtaining HBase token for: {}", user);
try {
UserGroupInformation currentUser = UserGroupInformation.getCurrentUser();
user = currentUser.getUserName();
Credentials credentials = conf.getCredentials();
for (Token t : currentUser.getTokens()) {
LOG.debug("Token {} is available", t);
if ("HBASE_AUTH_TOKEN".equalsIgnoreCase(t.getKind().toString()))
credentials.addToken(t.getKind(), t);
}
} catch (IOException e) {
throw new TapException("Unable to obtain HBase auth token for " + user, e);
}
}
}

@Override
public String getIdentifier() {
return id;
Expand Down Expand Up @@ -277,6 +302,7 @@ public void sourceConfInit(FlowProcess<JobConf> process, JobConf conf) {
for( SourceConfig sc : sourceConfigList) {
sc.configure(conf);
}
obtainToken(conf);

super.sourceConfInit(process, conf);
}
Expand Down