Brahma, Thanks for the reply. I'll keep this conversation here in the user list. The /etc/hosts file is identical on all three nodes
hadoop@hadoop-data1:~$ cat /etc/hosts 127.0.0.1 localhost 192.168.51.4 hadoop-master 192.168.52.4 hadoop-data1 192.168.52.6 hadoop-data2 hadoop@hadoop-data2:~$ cat /etc/hosts 127.0.0.1 localhost 192.168.51.4 hadoop-master 192.168.52.4 hadoop-data1 192.168.52.6 hadoop-data2 hadoop@hadoop-master:~$ cat /etc/hosts 127.0.0.1 localhost 192.168.51.4 hadoop-master 192.168.52.4 hadoop-data1 192.168.52.6 hadoop-data2 Here are the startup logs for all three nodes: https://gist.github.com/dwatrous/7241bb804a9be8f9303f https://gist.github.com/dwatrous/bcd85cda23d6eca3a68b https://gist.github.com/dwatrous/922c4f773aded0137fa3 Thanks for your help. On Fri, Sep 25, 2015 at 10:33 AM, Brahma Reddy Battula < brahmareddy.batt...@huawei.com> wrote: > Seems DN started in three machines and failed in > hadoop-data1(192.168.52.4).. > > > 192.168.51.6 : giving IP as 192.168.51.1 <http://192.168.51.1:50010>...can > you please check /etc/hosts file of 192.168.51.6 (might be 192.168.51.1 > <http://192.168.51.1:50010> is configured in /etc/hosts) > > 192.168.52.4 : datanode startup might be failed ( you can check this node > logs) > > 192.168.51.4 : <http://192.168.51.4:50010> Datanode starup is > success..which is in master node.. > > > > Thanks & Regards > > Brahma Reddy Battula > > > > > ------------------------------ > *From:* Daniel Watrous [dwmaill...@gmail.com] > *Sent:* Friday, September 25, 2015 8:41 PM > *To:* user@hadoop.apache.org > *Subject:* Re: Problem running example (wrong IP address) > > I'm still stuck on this and posted it to stackoverflow: > > http://stackoverflow.com/questions/32785256/hadoop-datanode-binds-wrong-ip-address > > Thanks, > Daniel > > On Fri, Sep 25, 2015 at 8:28 AM, Daniel Watrous <dwmaill...@gmail.com> > wrote: > >> I could really use some help here. As you can see from the output below, >> the two attached datanodes are identified with a non-existent IP address. >> Can someone tell me how that gets selected or how to explicitly set it. >> Also, why are both datanodes shown under the same name/IP? >> >> hadoop@hadoop-master:~$ hdfs dfsadmin -report >> Configured Capacity: 84482326528 (78.68 GB) >> Present Capacity: 75745546240 (70.54 GB) >> DFS Remaining: 75744862208 (70.54 GB) >> DFS Used: 684032 (668 KB) >> DFS Used%: 0.00% >> Under replicated blocks: 0 >> Blocks with corrupt replicas: 0 >> Missing blocks: 0 >> Missing blocks (with replication factor 1): 0 >> >> ------------------------------------------------- >> Live datanodes (2): >> >> Name: 192.168.51.1:50010 (192.168.51.1) >> Hostname: hadoop-data1 >> Decommission Status : Normal >> Configured Capacity: 42241163264 (39.34 GB) >> DFS Used: 303104 (296 KB) >> Non DFS Used: 4302479360 (4.01 GB) >> DFS Remaining: 37938380800 (35.33 GB) >> DFS Used%: 0.00% >> DFS Remaining%: 89.81% >> Configured Cache Capacity: 0 (0 B) >> Cache Used: 0 (0 B) >> Cache Remaining: 0 (0 B) >> Cache Used%: 100.00% >> Cache Remaining%: 0.00% >> Xceivers: 1 >> Last contact: Fri Sep 25 13:25:37 UTC 2015 >> >> >> Name: 192.168.51.4:50010 (hadoop-master) >> Hostname: hadoop-master >> Decommission Status : Normal >> Configured Capacity: 42241163264 (39.34 GB) >> DFS Used: 380928 (372 KB) >> Non DFS Used: 4434300928 (4.13 GB) >> DFS Remaining: 37806481408 (35.21 GB) >> DFS Used%: 0.00% >> DFS Remaining%: 89.50% >> Configured Cache Capacity: 0 (0 B) >> Cache Used: 0 (0 B) >> Cache Remaining: 0 (0 B) >> Cache Used%: 100.00% >> Cache Remaining%: 0.00% >> Xceivers: 1 >> Last contact: Fri Sep 25 13:25:38 UTC 2015 >> >> >> >> On Thu, Sep 24, 2015 at 5:05 PM, Daniel Watrous <dwmaill...@gmail.com> >> wrote: >> >>> The IP address is clearly wrong, but I'm not sure how it gets set. Can >>> someone tell me how to configure it to choose a valid IP address? >>> >>> On Thu, Sep 24, 2015 at 3:26 PM, Daniel Watrous <dwmaill...@gmail.com> >>> wrote: >>> >>>> 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 >>>>> >>>> >>>> >>> >> >
