hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-12363) Possible NPE in BlockManager$StorageInfoDefragmenter#scanAndCompactStorages
Date Mon, 28 Aug 2017 05:35:01 GMT
Xiao Chen created HDFS-12363:
--------------------------------

             Summary: Possible NPE in BlockManager$StorageInfoDefragmenter#scanAndCompactStorages
                 Key: HDFS-12363
                 URL: https://issues.apache.org/jira/browse/HDFS-12363
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 2.6.0
            Reporter: Xiao Chen
            Assignee: Xiao Chen


Saw NN going down with NPE below:

{noformat}
ERROR org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: Thread received Runtime
exception.
java.lang.NullPointerException
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$StorageInfoDefragmenter.scanAndCompactStorages(BlockManager.java:3897)
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$StorageInfoDefragmenter.run(BlockManager.java:3852)
at java.lang.Thread.run(Thread.java:745)
2017-08-21 22:14:05,303 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1
2017-08-21 22:14:05,313 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: 
{noformat}

In that version, {{BlockManager}} code is:
{code}
3896  try {
3897           DatanodeStorageInfo storage = datanodeManager.
3898                 getDatanode(datanodesAndStorages.get(i)).
3899                getStorageInfo(datanodesAndStorages.get(i + 1));
3900            if (storage != null) {
{code}



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

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org


Mime
View raw message