[ https://issues.apache.org/jira/browse/SPARK-21906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Saisai Shao closed SPARK-21906. ------------------------------- Resolution: Not A Problem > No need to runAsSparkUser to switch UserGroupInformation in YARN mode > --------------------------------------------------------------------- > > Key: SPARK-21906 > URL: https://issues.apache.org/jira/browse/SPARK-21906 > Project: Spark > Issue Type: Improvement > Components: Spark Core, YARN > Affects Versions: 2.2.0 > Reporter: Kent Yao > > 1、The Yarn application‘s ugi is determined by the ugi launching it > 2、 runAsSparkUser is used to switch a ugi as same as itself, because we have > already set {code:java} env("SPARK_USER") = > UserGroupInformation.getCurrentUser().getShortUserName() {code} in the am > container context > {code:java} > def runAsSparkUser(func: () => Unit) { > val user = Utils.getCurrentUserName() // get the user itself > logDebug("running as user: " + user) > val ugi = UserGroupInformation.createRemoteUser(user) // create a new ugi > use itself > transferCredentials(UserGroupInformation.getCurrentUser(), ugi) // > transfer its own credentials > ugi.doAs(new PrivilegedExceptionAction[Unit] { // doAs as itseft > def run: Unit = func() > }) > } > {code} -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org