[SPARK-6918] [YARN] Secure HBase support.
Obtain HBase security token with Kerberos credentials locally to be sent to executors. Tested on eBay's secure HBase cluster. Similar to obtainTokenForNamenodes and fails gracefully if HBase classes are not included in path. Requires hbase-site.xml to be in the classpath(typically via conf dir) for the zookeeper configuration. Should that go in the docs somewhere? Did not see an HBase section. Author: Dean Chen <deanchen5@gmail.com> Closes #5586 from deanchen/master and squashes the following commits: 0c190ef [Dean Chen] [SPARK-6918][YARN] Secure HBase support.
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@ -39,7 +39,7 @@ import org.apache.hadoop.io.Text
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import org.apache.hadoop.mapred.Master
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import org.apache.hadoop.mapreduce.MRJobConfig
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import org.apache.hadoop.security.{Credentials, UserGroupInformation}
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import org.apache.hadoop.security.token.Token
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import org.apache.hadoop.security.token.{TokenIdentifier, Token}
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import org.apache.hadoop.util.StringUtils
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import org.apache.hadoop.yarn.api._
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import org.apache.hadoop.yarn.api.ApplicationConstants.Environment
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@ -226,6 +226,7 @@ private[spark] class Client(
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val distributedUris = new HashSet[String]
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obtainTokensForNamenodes(nns, hadoopConf, credentials)
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obtainTokenForHiveMetastore(hadoopConf, credentials)
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obtainTokenForHBase(hadoopConf, credentials)
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val replication = sparkConf.getInt("spark.yarn.submit.file.replication",
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fs.getDefaultReplication(dst)).toShort
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@ -1084,6 +1085,41 @@ object Client extends Logging {
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}
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}
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/**
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* Obtain security token for HBase.
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*/
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def obtainTokenForHBase(conf: Configuration, credentials: Credentials): Unit = {
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if (UserGroupInformation.isSecurityEnabled) {
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val mirror = universe.runtimeMirror(getClass.getClassLoader)
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try {
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val confCreate = mirror.classLoader.
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loadClass("org.apache.hadoop.hbase.HBaseConfiguration").
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getMethod("create", classOf[Configuration])
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val obtainToken = mirror.classLoader.
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loadClass("org.apache.hadoop.hbase.security.token.TokenUtil").
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getMethod("obtainToken", classOf[Configuration])
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logDebug("Attempting to fetch HBase security token.")
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val hbaseConf = confCreate.invoke(null, conf)
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val token = obtainToken.invoke(null, hbaseConf).asInstanceOf[Token[TokenIdentifier]]
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credentials.addToken(token.getService, token)
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logInfo("Added HBase security token to credentials.")
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} catch {
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case e:java.lang.NoSuchMethodException =>
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logInfo("HBase Method not found: " + e)
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case e:java.lang.ClassNotFoundException =>
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logDebug("HBase Class not found: " + e)
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case e:java.lang.NoClassDefFoundError =>
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logDebug("HBase Class not found: " + e)
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case e:Exception =>
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logError("Exception when obtaining HBase security token: " + e)
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}
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}
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}
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/**
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* Return whether the two file systems are the same.
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*/
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