Github user steveloughran commented on a diff in the pull request:
https://github.com/apache/spark/pull/9232#discussion_r43488706
--- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala ---
@@ -1337,55 +1337,9 @@ object Client extends Logging {
conf: Configuration,
credentials: Credentials) {
if (shouldGetTokens(sparkConf, "hive") &&
UserGroupInformation.isSecurityEnabled) {
- val mirror = universe.runtimeMirror(getClass.getClassLoader)
-
- try {
- val hiveConfClass =
mirror.classLoader.loadClass("org.apache.hadoop.hive.conf.HiveConf")
- val hiveConf = hiveConfClass.newInstance()
-
- val hiveConfGet = (param: String) => Option(hiveConfClass
- .getMethod("get", classOf[java.lang.String])
- .invoke(hiveConf, param))
-
- val metastore_uri = hiveConfGet("hive.metastore.uris")
-
- // Check for local metastore
- if (metastore_uri != None && metastore_uri.get.toString.size > 0) {
- val hiveClass =
mirror.classLoader.loadClass("org.apache.hadoop.hive.ql.metadata.Hive")
- val hive = hiveClass.getMethod("get").invoke(null,
hiveConf.asInstanceOf[Object])
-
- val metastore_kerberos_principal_conf_var = mirror.classLoader
- .loadClass("org.apache.hadoop.hive.conf.HiveConf$ConfVars")
-
.getField("METASTORE_KERBEROS_PRINCIPAL").get("varname").toString
-
- val principal =
hiveConfGet(metastore_kerberos_principal_conf_var)
-
- val username =
Option(UserGroupInformation.getCurrentUser().getUserName)
- if (principal != None && username != None) {
- val tokenStr = hiveClass.getMethod("getDelegationToken",
- classOf[java.lang.String], classOf[java.lang.String])
- .invoke(hive, username.get,
principal.get).asInstanceOf[java.lang.String]
-
- val hive2Token = new Token[DelegationTokenIdentifier]()
- hive2Token.decodeFromUrlString(tokenStr)
- credentials.addToken(new
Text("hive.server2.delegation.token"), hive2Token)
- logDebug("Added hive.Server2.delegation.token to conf.")
- hiveClass.getMethod("closeCurrent").invoke(null)
- } else {
- logError("Username or principal == NULL")
- logError(s"""username=${username.getOrElse("(NULL)")}""")
- logError(s"""principal=${principal.getOrElse("(NULL)")}""")
- throw new IllegalArgumentException("username and/or principal
is equal to null!")
- }
- } else {
- logDebug("HiveMetaStore configured in localmode")
- }
- } catch {
- case e: java.lang.NoSuchMethodException => { logInfo("Hive Method
not found " + e); return }
- case e: java.lang.ClassNotFoundException => { logInfo("Hive Class
not found " + e); return }
- case e: Exception => { logError("Unexpected Exception " + e)
- throw new RuntimeException("Unexpected exception", e)
- }
+ val util = new YarnSparkHadoopUtil()
--- End diff --
done
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