[ https://issues.apache.org/jira/browse/HDFS-15561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiaoqiao He resolved HDFS-15561. -------------------------------- Fix Version/s: 3.4.0 Hadoop Flags: Reviewed Resolution: Fixed Committed to trunk. Thanks [~fengnanli] for your works! And thanks [~lamberken] for your reports! > RBF: Fix NullPointException when start dfsrouter > ------------------------------------------------ > > Key: HDFS-15561 > URL: https://issues.apache.org/jira/browse/HDFS-15561 > Project: Hadoop HDFS > Issue Type: Bug > Components: rbf > Affects Versions: 3.3.0 > Reporter: Xie Lei > Assignee: Fengnan Li > Priority: Major > Labels: pull-request-available > Fix For: 3.4.0 > > Time Spent: 3h > Remaining Estimate: 0h > > when start dfsrouter, it throw NPE > {code:java} > 2020-09-08 19:41:14,989 ERROR > org.apache.hadoop.hdfs.server.federation.router.NamenodeHeartbeatService: > Unexpected exception while communicating with null:null: > java.net.UnknownHostException: null2020-09-08 19:41:14,989 ERROR > org.apache.hadoop.hdfs.server.federation.router.NamenodeHeartbeatService: > Unexpected exception while communicating with null:null: > java.net.UnknownHostException: nulljava.lang.IllegalArgumentException: > java.net.UnknownHostException: null at > org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:447) > at > org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:171) > at > org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:123) > at > org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:95) > at > org.apache.hadoop.hdfs.server.federation.router.NamenodeHeartbeatService.getNamenodeStatusReport(NamenodeHeartbeatService.java:248) > at > org.apache.hadoop.hdfs.server.federation.router.NamenodeHeartbeatService.updateState(NamenodeHeartbeatService.java:205) > at > org.apache.hadoop.hdfs.server.federation.router.NamenodeHeartbeatService.periodicInvoke(NamenodeHeartbeatService.java:159) > at > org.apache.hadoop.hdfs.server.federation.router.PeriodicService$1.run(PeriodicService.java:178) > at > java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514) > at > java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) at > java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:300) > at > java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) > at > java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) > at java.base/java.lang.Thread.run(Thread.java:844)Caused by: > java.net.UnknownHostException: null ... 14 more > {code} > -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org