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[SPARK-6918][YARN] Secure HBase support. #5586

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[SPARK-6918][YARN] Secure HBase support. #5586

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38 changes: 37 additions & 1 deletion yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ import org.apache.hadoop.io.Text
import org.apache.hadoop.mapred.Master
import org.apache.hadoop.mapreduce.MRJobConfig
import org.apache.hadoop.security.{Credentials, UserGroupInformation}
import org.apache.hadoop.security.token.Token
import org.apache.hadoop.security.token.{TokenIdentifier, Token}
import org.apache.hadoop.util.StringUtils
import org.apache.hadoop.yarn.api._
import org.apache.hadoop.yarn.api.ApplicationConstants.Environment
Expand Down Expand Up @@ -226,6 +226,7 @@ private[spark] class Client(
val distributedUris = new HashSet[String]
obtainTokensForNamenodes(nns, hadoopConf, credentials)
obtainTokenForHiveMetastore(hadoopConf, credentials)
obtainTokenForHBase(hadoopConf, credentials)

val replication = sparkConf.getInt("spark.yarn.submit.file.replication",
fs.getDefaultReplication(dst)).toShort
Expand Down Expand Up @@ -1084,6 +1085,41 @@ object Client extends Logging {
}
}

/**
* Obtain security token for HBase.
*/
def obtainTokenForHBase(conf: Configuration, credentials: Credentials): Unit = {
if (UserGroupInformation.isSecurityEnabled) {
val mirror = universe.runtimeMirror(getClass.getClassLoader)

try {
val confCreate = mirror.classLoader.
loadClass("org.apache.hadoop.hbase.HBaseConfiguration").
getMethod("create", classOf[Configuration])
val obtainToken = mirror.classLoader.
loadClass("org.apache.hadoop.hbase.security.token.TokenUtil").
getMethod("obtainToken", classOf[Configuration])

logDebug("Attempting to fetch HBase security token.")

val hbaseConf = confCreate.invoke(null, conf)
val token = obtainToken.invoke(null, hbaseConf).asInstanceOf[Token[TokenIdentifier]]
credentials.addToken(token.getService, token)

logInfo("Added HBase security token to credentials.")
} catch {
case e:java.lang.NoSuchMethodException =>
logInfo("HBase Method not found: " + e)
case e:java.lang.ClassNotFoundException =>
logDebug("HBase Class not found: " + e)
case e:java.lang.NoClassDefFoundError =>
logDebug("HBase Class not found: " + e)
case e:Exception =>
logError("Exception when obtaining HBase security token: " + e)
}
}
}

/**
* Return whether the two file systems are the same.
*/
Expand Down