[HDFS-15845] RBF: Router fails to start due to NoClassDefFoundError for hadoop-federation-balance

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: rbf
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Takanobu Asanuma
• Reporter: Takanobu Asanuma
• Created: 22/Feb/21 08:30
• Updated: 27/Jan/24 02:52
• Resolved: 23/Feb/21 06:13

Description

$ 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:

Issue Links

• links to: GitHub Pull Request #2714