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Jinglun commented on HDFS-15845: -------------------------------- My bad ! I missed the classpath of command dfsrouter. Hi [~tasanuma], would you please give a try of adding `hadoop_add_to_classpath_tools hadoop-federation-balance` to the command dfsrouter. Like below. {quote}File: hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs b/hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs {quote} {quote}dfsrouter) HADOOP_SUBCMD_SUPPORTDAEMONIZATION="true" HADOOP_CLASSNAME='org.apache.hadoop.hdfs.server.federation.router.DFSRouter' hadoop_add_to_classpath_tools hadoop-federation-balance // add this. ;;{quote} > RBF: Router fails to start due to NoClassDefFoundError for > hadoop-federation-balance > ------------------------------------------------------------------------------------ > > Key: HDFS-15845 > URL: https://issues.apache.org/jira/browse/HDFS-15845 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Takanobu Asanuma > Assignee: Takanobu Asanuma > Priority: Major > Labels: pull-request-available > Time Spent: 10m > Remaining Estimate: 0h > > {noformat} > $ hdfs dfsrouter > ... > 2021-02-22 17:21:55,400 ERROR router.DFSRouter: Failed to start router > java.lang.NoClassDefFoundError: > org/apache/hadoop/tools/fedbalance/procedure/BalanceProcedure > at > org.apache.hadoop.hdfs.server.federation.router.RouterClientProtocol.<init>(RouterClientProtocol.java:195) > at > org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer.<init>(RouterRpcServer.java:394) > at > org.apache.hadoop.hdfs.server.federation.router.Router.createRpcServer(Router.java:391) > at > org.apache.hadoop.hdfs.server.federation.router.Router.serviceInit(Router.java:188) > at > org.apache.hadoop.service.AbstractService.init(AbstractService.java:165) > at > org.apache.hadoop.hdfs.server.federation.router.DFSRouter.main(DFSRouter.java:69) > Caused by: java.lang.ClassNotFoundException: > org.apache.hadoop.tools.fedbalance.procedure.BalanceProcedure > at java.net.URLClassLoader.findClass(URLClassLoader.java:382) > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > ... 6 more > 2021-02-22 17:21:55,402 INFO util.ExitUtil: Exiting with status 1: > java.lang.NoClassDefFoundError: > org/apache/hadoop/tools/fedbalance/procedure/BalanceProcedure > 2021-02-22 17:21:55,404 INFO router.DFSRouter: SHUTDOWN_MSG: > {noformat} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org