[jira] [Created] (HDFS-15505) Fix NullPointerException when call getAdditionalDatanode with null extendedBlock

["hang chen (Jira)" <ji...@apache.org>]

hang chen created HDFS-15505:
--------------------------------

             Summary: Fix NullPointerException when call getAdditionalDatanode with null extendedBlock
                 Key: HDFS-15505
                 URL: https://issues.apache.org/jira/browse/HDFS-15505
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: dfsclient
    Affects Versions: 3.1.3, 3.2.1, 3.3.0, 3.1.2, 3.0.3, 3.1.1, 3.2.0, 3.0.2, 3.0.1, 3.1.0, 3.0.0
            Reporter: hang chen
             Fix For: 3.3.1, 3.4.0


When client call getAdditionalDatanode method, it will initialize GetAdditionalDatanodeRequestProto and send RPC request to Router/namenode. However, if we call getAdditionalDatanode method with null extendedBlock parameter, it will set GetAdditionalDatanodeRequestProto's blk field with null, which will cause NullPointerException. The code show as follow.

 
{code:java}
// code placeholder
GetAdditionalDatanodeRequestProto req = GetAdditionalDatanodeRequestProto
 .newBuilder()
 .setSrc(src)
 .setFileId(fileId)
 .setBlk(PBHelperClient.convert(blk))
 .addAllExistings(PBHelperClient.convert(existings))
 .addAllExistingStorageUuids(Arrays.asList(existingStorageIDs))
 .addAllExcludes(PBHelperClient.convert(excludes))
 .setNumAdditionalNodes(numAdditionalNodes)
 .setClientName(clientName)
 .build();{code}
 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

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