I already did this, but the problem still there. When I try this command: host 10.220.55.41
I get: Host 41.55.220.10.in-addr.arpa. not found: 3(NXDOMAIN) The same for each host. Is this normal? Alberto On 17 September 2012 11:54, shashwat shriparv <[email protected]> wrote: > make sure that same content is there on different machines in your cluster > copy this > > 127.0.0.1 localhost > 10.220.55.41 skil01 > 10.220.55.42 skil02 > 10.220.55.40 skil03 > > and paste it in machine skill01 skill02 skill03 and then try. and also > check if these ips are correct. > > Regards > > ∞ > Shashwat Shriparv > > > > On Mon, Sep 17, 2012 at 1:09 PM, Alberto Cordioli < > [email protected]> wrote: > >> How can I set my rDNS? >> Anyway this is the /etc/hosts file on my hosts: >> >> 127.0.0.1 localhost >> 10.220.55.41 skil01 >> 10.220.55.42 skil02 >> 10.220.55.40 skil03 >> >> The file /etc/hostname contains only a row with the name of the >> current host. For example on skil01 it contains: >> skil01 >> >> >> Alberto >> >> >> >> On 17 September 2012 07:47, shashwat shriparv <[email protected]> >> wrote: >> > cnn you send the content of your hostname and hosts file content? >> > >> > Regards >> > >> > ∞ >> > Shashwat Shriparv >> > >> > >> > >> > On Mon, Sep 17, 2012 at 11:09 AM, Michel Segel < >> [email protected]>wrote: >> > >> >> Just a hunch, w DNS, do you have your rDNS (reverse DNS lookup) set up >> >> correctly. >> >> >> >> Sent from a remote device. Please excuse any typos... >> >> >> >> Mike Segel >> >> >> >> On Sep 15, 2012, at 8:04 PM, Alberto Cordioli < >> [email protected]> >> >> wrote: >> >> >> >> > This is the configuration I used till now...It works, but give the >> >> > mentioned error (although the procedure seems to return correct >> >> > results anyway. >> >> > I think in /etc/hosts should be also the line >> >> > 127.0.0.1 hostname >> >> > >> >> > but in that case Hadoop does not start. >> >> > >> >> > Alberto >> >> > >> >> > On 14 September 2012 18:19, Shumin Wu <[email protected]> wrote: >> >> >> Would that work for you? >> >> >> >> >> >> 127.0.0.1 localhost >> >> >> 10.220.55.41 hostname >> >> >> >> >> >> -Shumin >> >> >> >> >> >> On Fri, Sep 14, 2012 at 6:18 AM, Alberto Cordioli < >> >> >> [email protected]> wrote: >> >> >> >> >> >>> Hi, >> >> >>> >> >> >>> I've successfully installed Apache HBase on a cluster with Hadoop. >> >> >>> It works fine, but when I try to use Pig to load some data from an >> >> >>> HBase table I get this error: >> >> >>> >> >> >>> ERROR org.apache.hadoop.hbase.mapreduce.TableInputFormatBase - >> Cannot >> >> >>> resolve the host name for /10.220.55.41 because of >> >> >>> javax.naming.OperationNotSupportedException: DNS service refused >> >> >>> [response code 5]; remaining name '41.55.220.10.in-addr.arpa' >> >> >>> >> >> >>> Pig returns in any case the correct results (actually I don't know >> >> >>> how), but I'd like to solve this issue. >> >> >>> >> >> >>> I discovered that this error is due to a mistake in /etc/hosts >> >> >>> configuration file. In fact, as reported in the documentation, I >> >> >>> should add the line >> >> >>> 127.0.0.1 hostname >> >> >>> (http://hbase.apache.org/book.html#os). >> >> >>> >> >> >>> But if I add this entry my Hadoop cluster does not start since the >> >> >>> datanote is bind to the local address instead to the hostname/IP >> >> >>> address. For this reason in many tutorial it's suggested to remove >> >> >>> such entry (e.g. >> >> >>> >> >> >>> >> >> >> http://stackoverflow.com/questions/8872807/hadoop-datanodes-cannot-find-namenode >> >> >>> ). >> >> >>> >> >> >>> Basically if I add that line Hadoop won't work, but if I keep the >> file >> >> >>> without the loopback address I get the above error. >> >> >>> What can I do? Which is the right configuration? >> >> >>> >> >> >>> >> >> >>> Thanks, >> >> >>> Alberto >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> -- >> >> >>> Alberto Cordioli >> >> >>> >> >> > >> >> > >> >> > >> >> > -- >> >> > Alberto Cordioli >> >> > >> >> >> > >> > >> > >> > -- >> > >> > >> > ∞ >> > Shashwat Shriparv >> >> >> >> -- >> Alberto Cordioli >> > > > > -- > > > ∞ > Shashwat Shriparv -- Alberto Cordioli
