Wei-Chiu Chuang created HDFS-9594: ------------------------------------- Summary: DataNode threw NullPointerException Key: HDFS-9594 URL: https://issues.apache.org/jira/browse/HDFS-9594 Project: Hadoop HDFS Issue Type: Bug Components: datanode Affects Versions: 3.0.0 Environment: Jenkins Reporter: Wei-Chiu Chuang Assignee: Wei-Chiu Chuang
In a precommit jenkins, I saw multiple exceptions. https://builds.apache.org/job/PreCommit-HDFS-Build/13984/testReport/org.apache.hadoop.hdfs/TestDFSShell/testSymLinkReserved/ One of which is a null pointer exception in datanode. {noformat} 2015-12-23 13:26:50,337 [DataNode: [[[DISK]file:/testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/1/dfs/data/data1/, [DISK]file:/testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/1/dfs/data/data2/]] heartbeating to localhost/127.0.0.1:38151] WARN datanode.DataNode (BPServiceActor.java:run(859)) - Unexpected exception in block pool Block pool BP-1060337608-172.17.0.3-1450877209942 (Datanode Uuid 6b120576-5c02-402f-ab38-079295bda597) service to localhost/127.0.0.1:38151 java.lang.NullPointerException at org.apache.hadoop.hdfs.server.datanode.DataNode.bpRegistrationSucceeded(DataNode.java:1391) at org.apache.hadoop.hdfs.server.datanode.BPOfferService.registrationSucceeded(BPOfferService.java:360) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.register(BPServiceActor.java:796) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshake(BPServiceActor.java:231) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:829) at java.lang.Thread.run(Thread.java:745) {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)