Walter Su created HDFS-7633:
-------------------------------
Summary: When Datanode has too many blocks,
BlockPoolSliceScanner.getNewBlockScanTime thows IllegalArgumentException
Key: HDFS-7633
URL: https://issues.apache.org/jira/browse/HDFS-7633
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode
Affects Versions: 2.6.0
Reporter: Walter Su
Priority: Minor
When Total blocks of one of my DNs reaches 33554432, It refuses to accept more
blocks, this is the ERROR.
2015-01-16 15:21:44,571 | ERROR | DataXceiver for client at /172.1.1.8:50490
[Receiving block
BP-1976278848-172.1.1.2-1419846518085:blk_1221043436_147936990] |
datasight-198:25009:DataXceiver error processing WRITE_BLOCK operation src:
/172.1.1.8:50490 dst: /172.1.1.11:25009 |
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:250)
java.lang.IllegalArgumentException: n must be positive
at java.util.Random.nextInt(Random.java:300)
at
org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner.getNewBlockScanTime(BlockPoolSliceScanner.java:263)
at
org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner.addBlock(BlockPoolSliceScanner.java:276)
at
org.apache.hadoop.hdfs.server.datanode.DataBlockScanner.addBlock(DataBlockScanner.java:193)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.closeBlock(DataNode.java:1733)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:765)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:124)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:71)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:232)
at java.lang.Thread.run(Thread.java:745)
in function
org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner.getNewBlockScanTime()
when blockMap.size() is too big,
Math.max(blockMap.size(),1) is negtive
Math.max(blockMap.size(),1) * 600 * 1000L is negtive
(int)period is Integer.MIN_VALUE
Math.abs((int)period) is Integer.MIN_VALUE , which is negtive
DFSUtil.getRandom().nextInt(periodInt) will thows IllegalArgumentException
I use Java HotSpot (build 1.7.0_05-b05)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
