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Posted to user@hama.apache.org by Vahe nr <vn...@gmail.com> on 2013/09/04 10:45:48 UTC
java.net.ConnectException: Call to hmaster/IP:9000 failed on
connection exception
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
Re: java.net.ConnectException: Call to hmaster/IP:9000 failed on
connection exception
Posted by Vahe nr <vn...@gmail.com>.
Hi,
Ok I have solved the issue it was the port number in the conf file, thanks
for your help.
Regards,
Vahe
On Thu, Sep 5, 2013 at 6:49 AM, Vahe nr <vn...@gmail.com> wrote:
> 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 <
> andronat_asf@hotmail.com> 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 <vn...@gmail.com> 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 <vn...@gmail.com> 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 <
>> >> andronat_asf@hotmail.com> 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 <vn...@gmail.com> 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
>> >>>
>> >>>
>> >>
>>
>>
>
Re: java.net.ConnectException: Call to hmaster/IP:9000 failed on
connection exception
Posted by Vahe nr <vn...@gmail.com>.
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 <
andronat_asf@hotmail.com> 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 <vn...@gmail.com> 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 <vn...@gmail.com> 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 <
> >> andronat_asf@hotmail.com> 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 <vn...@gmail.com> 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
> >>>
> >>>
> >>
>
>
Re: java.net.ConnectException: Call to hmaster/IP:9000 failed on connection exception
Posted by Anastasis Andronidis <an...@hotmail.com>.
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 <vn...@gmail.com> 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 <vn...@gmail.com> 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 <
>> andronat_asf@hotmail.com> 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 <vn...@gmail.com> 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
>>>
>>>
>>
Re: java.net.ConnectException: Call to hmaster/IP:9000 failed on
connection exception
Posted by Vahe nr <vn...@gmail.com>.
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 <vn...@gmail.com> 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 <
> andronat_asf@hotmail.com> 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 <vn...@gmail.com> 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
>>
>>
>
Re: java.net.ConnectException: Call to hmaster/IP:9000 failed on
connection exception
Posted by Vahe nr <vn...@gmail.com>.
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 <
andronat_asf@hotmail.com> 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 <vn...@gmail.com> 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
>
>
Re: java.net.ConnectException: Call to hmaster/IP:9000 failed on connection exception
Posted by Anastasis Andronidis <an...@hotmail.com>.
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 <vn...@gmail.com> 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