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Posted to hdfs-issues@hadoop.apache.org by "Lukas Majercak (JIRA)" <ji...@apache.org> on 2017/09/29 16:44:00 UTC

[jira] [Created] (HDFS-12566) BlockReceiver can leak FileInputStream

Lukas Majercak created HDFS-12566:
-------------------------------------

             Summary: BlockReceiver can leak FileInputStream
                 Key: HDFS-12566
                 URL: https://issues.apache.org/jira/browse/HDFS-12566
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode, hdfs
            Reporter: Lukas Majercak
            Assignee: Lukas Majercak
            Priority: Minor


BlockReceiver's constructor can leak file handles if it encounters null pointer exceptions. One example of this is TestDataTransferProtocol.testDataTransferProtocol:

java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:263)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.getBlockReceiver(DataXceiver.java:1291)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:758)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:173)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:107)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:290)
	at java.lang.Thread.run(Thread.java:748)



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