I just noticed that both datanodes appear to have chosen that IP address and bound that port for HDFS communication.
http://screencast.com/t/OQNbrWFF Any idea why this would be? Is there some way to specify which IP/hostname should be used for that? On Thu, Sep 24, 2015 at 3:11 PM, Daniel Watrous <dwmaill...@gmail.com> wrote: > 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 >
