Hi, I have disabled the firewall and tried a lot of testing between the the ssh is working fine without password for hadoop user, just now when I am running the script it shows me: ./start-bspd.sh hmaster: starting zookeeper, logging to /home/hadoop/hama-0.6.2/bin/../logs/hama-hadoop-zookeeper-hmaster.out starting bspmaster, logging to /home/hadoop/hama-0.6.2/bin/../logs/hama-hadoop-bspmaster-hmaster.out hslave01: starting groom, logging to /home/hadoop/hama-0.6.2/bin/../logs/hama-hadoop-groom-hslave01.out
but in the hama-hadoop-bspmaster-hmaster.log I have: 2013-09-05 11:41:59,483 ERROR org.apache.hama.bsp.BSPMaster: Can't get connection to Hadoop Namenode! java.net.ConnectException: Call to hmaster/192.168.0.30:9000 failed on connection exception: java.net.ConnectException: Connection refused Could you please make some suggestion to check. Thanks in advance. Regards, Vahe On Wed, Sep 4, 2013 at 11:42 AM, Anastasis Andronidis < [email protected]> wrote: > You might have a firewall on the OS you are using (if you are using > CentoOS for example, you can try: service iptables stop) > > Anastasis > > On 4 Σεπ 2013, at 12:23 μ.μ., Vahe nr <[email protected]> wrote: > > > Hi, > > > > Let me add that the two machines (namenode and datanode) are virtual > > machines with local ips and there is no firewall between them. > > Do I need to put the Hadoop conf file also to be more clear. > > > > Regards, > > Vahe > > > > > > On Wed, Sep 4, 2013 at 8:59 AM, Vahe nr <[email protected]> wrote: > > > >> Thanks Anastasis for your response. > >> > >> The ping is ok from Hama server to Namenode which is actually the same > >> server. But you are right I need to check the firewall. > >> > >> Regards, > >> Vahe > >> > >> > >> On Wed, Sep 4, 2013 at 8:53 AM, Anastasis Andronidis < > >> [email protected]> wrote: > >> > >>> You can see the configurations of your Datanode (in conf directory) to > >>> see if you have any miss configurations on names and ports of namenode. > >>> > >>> Else you should see for firewalls or try to ping the Namenode from Hama > >>> server. > >>> > >>> It seams like a network problem. > >>> > >>> Kindly, > >>> Anastasis > >>> > >>> On 4 Σεπ 2013, at 11:45 π.μ., Vahe nr <[email protected]> wrote: > >>> > >>>> Dear all, > >>>> > >>>> I have a Hadoop cluster with one Namenode and one Datanode the cluster > >>> is > >>>> working on which I have executed several examples. > >>>> Just now I want to use hama for some programming purposes, but when I > am > >>>> trying to start hama I am getting the following: > >>>> 2013-09-04 12:22:44,510 INFO org.apache.hadoop.ipc.Client: Retrying > >>> connect > >>>> to server: hmaster/IP:9000. Already tried 9 time(s). > >>>> 2013-09-04 12:22:44,513 ERROR org.apache.hama.bsp.BSPMaster: Can't get > >>>> connection to Hadoop Namenode! > >>>> java.net.ConnectException: Call to hmaster/IP:9000 failed on > connection > >>>> exception: java.net.ConnectException: Connection refused > >>>> > >>>> I am using hadoop-1.0.4 and hama-0.6.2 > >>>> > >>>> Hama config files are: > >>>> hama-site.xml > >>>> <configuration> > >>>> <property> > >>>> <name>bsp.master.address</name> > >>>> <value>hmaster:40000</value> > >>>> <description>The address of the bsp master server. Either the > >>>> literal string "local" or a host:port for distributed mode > >>>> </description> > >>>> </property> > >>>> > >>>> <property> > >>>> <name>fs.default.name</name> > >>>> <value>hdfs://hmaster:9000/</value> > >>>> <description> > >>>> The name of the default file system. Either the literal string > >>>> "local" or a host:port for HDFS. > >>>> </description> > >>>> </property> > >>>> > >>>> <property> > >>>> <name>hama.zookeeper.quorum</name> > >>>> <value>hmaster</value> > >>>> <description>Comma separated list of servers in the ZooKeeper > >>> Quorum. > >>>> For example, "host1.mydomain.com,host2.mydomain.com, > >>> host3.mydomain.com > >>>> ". > >>>> By default this is set to localhost for local and > >>> pseudo-distributed > >>>> modes > >>>> of operation. For a fully-distributed setup, this should be set to > >>> a > >>>> full > >>>> list of ZooKeeper quorum servers. If HAMA_MANAGES_ZK is set in > >>>> hama-env.sh > >>>> this is the list of servers which we will start/stop zookeeper on. > >>>> </description> > >>>> </property> > >>>> > >>>> groomservers > >>>> hslave01 //which is the node name > >>>> > >>>> I will appreciate any help or suggestion to overcome this problem. > >>>> > >>>> Let me mention that when I am executing /stop-bspd.sh I am getting > the > >>>> following: > >>>> no bspmaster to stop > >>>> hslave01: stopping groom > >>>> hmaster: stopping zookeeper > >>>> > >>>> So the groom and zookeeper are working fine. > >>>> > >>>> > >>>> Regards, > >>>> Vahe > >>> > >>> > >> > >
