Wei-Chiu Chuang created HDFS-12112:
--------------------------------------

             Summary: TestBlockManager#testBlockManagerMachinesArray sometimes 
fails with NPE
                 Key: HDFS-12112
                 URL: https://issues.apache.org/jira/browse/HDFS-12112
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 3.0.0-beta1
         Environment: CDH5.12.0
            Reporter: Wei-Chiu Chuang
            Assignee: Wei-Chiu Chuang
            Priority: Minor


Found the following error:
{quote}
java.lang.NullPointerException: null
        at 
org.apache.hadoop.hdfs.server.blockmanagement.TestBlockManager.testBlockManagerMachinesArray(TestBlockManager.java:1202)
{quote}
The NPE suggests corruptStorageDataNode in the following code snippet could be 
null.
{code}
for(int i=0; i<corruptStorageDataNode.getStorageInfos().length; i++) {
{code}

Looking at the code, the test does not wait for file replication to happen, 
which is why corruptStorageDataNode (the DN of the second replica) is null.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org

Reply via email to