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Posted to hdfs-dev@hadoop.apache.org by "Xiaoqiao He (Jira)" <ji...@apache.org> on 2021/04/29 13:18:01 UTC
[jira] [Resolved] (HDFS-15561) RBF: Fix NullPointException when
start dfsrouter
[ 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}
>
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