You are viewing a plain text version of this content. The canonical link for it is here.
Posted to hdfs-dev@hadoop.apache.org by "Jiandan Yang (JIRA)" <ji...@apache.org> on 2017/10/11 11:30:00 UTC
[jira] [Created] (HDFS-12638) NameNode exit due to NPE
Jiandan Yang created HDFS-12638:
------------------------------------
Summary: NameNode exit due to NPE
Key: HDFS-12638
URL: https://issues.apache.org/jira/browse/HDFS-12638
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs
Affects Versions: 2.8.2
Reporter: Jiandan Yang
Active NamNode exit due to NPE, and I think BlockCollection 'bc' is Null by exclusion, but I do not know why bc is Null, By view history I guess this issue may be involved by [HDFS-9754|https://issues.apache.org/jira/browse/HDFS-9754].
NN logs are as following:
{code:java}
2017-10-11 16:29:06,161 ERROR [ReplicationMonitor] org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: ReplicationMonitor thread received Runtime exception.
java.lang.NullPointerException
at org.apache.hadoop.hdfs.server.blockmanagement.ReplicationWork.chooseTargets(ReplicationWork.java:55)
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWorkForBlocks(BlockManager.java:1532)
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWork(BlockManager.java:1491)
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:3792)
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3744)
at java.lang.Thread.run(Thread.java:834)
{code}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org