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From Daniel Watrous <dwmaill...@gmail.com>
Subject Problem running example (wrong IP address)
Date Thu, 24 Sep 2015 20:11:39 GMT
When I try to run a map reduce example, I get the following error:

hadoop@hadoop-master:~$ hadoop jar
/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.1.jar
pi 10 30
Number of Maps  = 10
Samples per Map = 30
15/09/24 20:04:28 INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as
192.168.51.1:50010
        at
org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1334)
        at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1237)
        at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:449)
15/09/24 20:04:28 INFO hdfs.DFSClient: Abandoning
BP-852923283-127.0.1.1-1443119668806:blk_1073741825_1001
15/09/24 20:04:28 INFO hdfs.DFSClient: Excluding datanode
DatanodeInfoWithStorage[192.168.51.1:50010
,DS-45f6e06d-752e-41e8-ac25-ca88bce80d00,DISK]
15/09/24 20:04:28 WARN hdfs.DFSClient: Slow waitForAckedSeqno took 65357ms
(threshold=30000ms)
Wrote input for Map #0

I'm not sure why it's trying to access 192.168.51.1:50010, which isn't even
a valid IP address in my setup.

Daniel

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