FAQ
Hello.

I just recently started playing around with ec2, and am trying to start a
hadoop cluster. I am currently following this guide:

http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster

Which walks you through setting up a cluster using Whirr and Cloudera
Manager. However I am unable to connect to my Cloudera manager on port 7180
(<instance_public_DNS>:7180), the request just times out.

I have opened all needed ports, in fact for the time being I have opened
all ports. Is there some other reason I can't connect to the manager ?

Any input would be appreciated.
Hunter.

Search Discussions

  • Casey Ching at Dec 21, 2012 at 4:56 pm
    Hi Hunter,

    I think you'll need to login to the Cloudera Manager server and look around
    a little.

    Is the server running? Try running "service cloudera-scm-server status"

    If yes, try to access the web server locally "curl localhost:7180". If that
    works you've got a firewall problem. Firewalls in ec2 can be a little
    tricky because there can be a firewall at the ec2 level and at the os level.

    If no, take a look at the server log at
    /var/log/cloudera-scm-server/cloudera-scm-server.log. Any errors near then
    end of the log? If you don't see a log file, there should at least be
    a cloudera-scm-server.out file, try looking at that.

    Casey
    On Fri, Dec 21, 2012 at 8:01 AM, Hunter McMillen wrote:

    Hello.

    I just recently started playing around with ec2, and am trying to start a
    hadoop cluster. I am currently following this guide:


    http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have opened
    all ports. Is there some other reason I can't connect to the manager ?

    Any input would be appreciated.
    Hunter.
  • Serega Sheypak at Dec 21, 2012 at 5:27 pm
    Did you try wget or telnet using localhost from the host where manager is
    installed?
    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmillhj@gmail.com>
    написал:
    Hello.

    I just recently started playing around with ec2, and am trying to start a
    hadoop cluster. I am currently following this guide:


    http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have opened
    all ports. Is there some other reason I can't connect to the manager ?

    Any input would be appreciated.
    Hunter.
  • Hunter McMillen at Dec 21, 2012 at 5:36 pm
    Both wget and telnet return the same HTML that was returned by curl.
    On Friday, December 21, 2012 12:27:54 PM UTC-5, Serega Sheypak wrote:

    Did you try wget or telnet using localhost from the host where manager is
    installed?
    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmi...@gmail.com<javascript:>>
    написал:
    Hello.

    I just recently started playing around with ec2, and am trying to start a
    hadoop cluster. I am currently following this guide:


    http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have opened
    all ports. Is there some other reason I can't connect to the manager ?

    Any input would be appreciated.
    Hunter.
  • Hunter McMillen at Dec 21, 2012 at 5:48 pm
    It seems the issue is the outbound port allowances on my side of the
    connection. Sorry for wasting people's time.

    Hunter
    On Friday, December 21, 2012 12:27:54 PM UTC-5, Serega Sheypak wrote:

    Did you try wget or telnet using localhost from the host where manager is
    installed?
    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmi...@gmail.com<javascript:>>
    написал:
    Hello.

    I just recently started playing around with ec2, and am trying to start a
    hadoop cluster. I am currently following this guide:


    http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have opened
    all ports. Is there some other reason I can't connect to the manager ?

    Any input would be appreciated.
    Hunter.
  • Casey Ching at Dec 21, 2012 at 6:39 pm
    Don't worry about it. It's good to know you got it working.
    On Fri, Dec 21, 2012 at 9:48 AM, Hunter McMillen wrote:

    It seems the issue is the outbound port allowances on my side of the
    connection. Sorry for wasting people's time.

    Hunter

    On Friday, December 21, 2012 12:27:54 PM UTC-5, Serega Sheypak wrote:

    Did you try wget or telnet using localhost from the host where manager is
    installed?
    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmi...@gmail.com>
    написал:

    Hello.
    I just recently started playing around with ec2, and am trying to start
    a hadoop cluster. I am currently following this guide:

    http://rogueleaderr.tumblr.**com/post/32768181371/set-up-**
    and-run-a-fully-distributed-**hadoop-hbase-cluster<http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster>

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have opened
    all ports. Is there some other reason I can't connect to the manager ?

    Any input would be appreciated.
    Hunter.
  • Abdelrahman Hegazy at Dec 24, 2012 at 6:58 am
    Hey Hunter,
    Could you please explain what was the big thing, as I am stuck at same
    level and both wget, curl return same thing, but still can't access the CSM?

    On Saturday, December 22, 2012 2:39:29 AM UTC+8, Casey Ching wrote:

    Don't worry about it. It's good to know you got it working.

    On Fri, Dec 21, 2012 at 9:48 AM, Hunter McMillen <mcmi...@gmail.com<javascript:>
    wrote:
    It seems the issue is the outbound port allowances on my side of the
    connection. Sorry for wasting people's time.

    Hunter

    On Friday, December 21, 2012 12:27:54 PM UTC-5, Serega Sheypak wrote:

    Did you try wget or telnet using localhost from the host where manager
    is installed?
    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmi...@gmail.com>
    написал:

    Hello.
    I just recently started playing around with ec2, and am trying to start
    a hadoop cluster. I am currently following this guide:

    http://rogueleaderr.tumblr.**com/post/32768181371/set-up-**
    and-run-a-fully-distributed-**hadoop-hbase-cluster<http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster>

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have
    opened all ports. Is there some other reason I can't connect to the manager
    ?

    Any input would be appreciated.
    Hunter.
  • Abdelrahman Hegazy at Dec 24, 2012 at 7:52 pm
    Thanks Hunter for your reply,

    Does anybody has a suggested solution for this thing time-out I checked the
    log and out files and nothing is really attractive all ports allowed and
    curl, wget both are returning same thing.
    wget localhost:7180
    curl localhost:7180


    On Monday, December 24, 2012 2:58:09 PM UTC+8, Abdelrahman Hegazy wrote:

    Hey Hunter,
    Could you please explain what was the big thing, as I am stuck at same
    level and both wget, curl return same thing, but still can't access the CSM?

    On Saturday, December 22, 2012 2:39:29 AM UTC+8, Casey Ching wrote:

    Don't worry about it. It's good to know you got it working.
    On Fri, Dec 21, 2012 at 9:48 AM, Hunter McMillen wrote:

    It seems the issue is the outbound port allowances on my side of the
    connection. Sorry for wasting people's time.

    Hunter

    On Friday, December 21, 2012 12:27:54 PM UTC-5, Serega Sheypak wrote:

    Did you try wget or telnet using localhost from the host where manager
    is installed?
    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmi...@gmail.com>
    написал:

    Hello.
    I just recently started playing around with ec2, and am trying to
    start a hadoop cluster. I am currently following this guide:

    http://rogueleaderr.tumblr.**com/post/32768181371/set-up-**
    and-run-a-fully-distributed-**hadoop-hbase-cluster<http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster>

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have
    opened all ports. Is there some other reason I can't connect to the manager
    ?

    Any input would be appreciated.
    Hunter.
  • bc Wong at Dec 26, 2012 at 7:50 pm

    On Mon, Dec 24, 2012 at 11:52 AM, Abdelrahman Hegazy wrote:

    Thanks Hunter for your reply,

    Does anybody has a suggested solution for this thing time-out I checked
    the log and out files and nothing is really attractive all ports allowed
    and curl, wget both are returning same thing.
    wget localhost:7180
    curl localhost:7180
    Hi,

    - On which host do you execute these commands?
    - Can you run `netstat -nltp | grep 7180' on the CM host?
    - If it's still not obvious by this point, can you please look for errors
    in (or attach) /var/log/cloudera-scm-server/cloudera-scm-server.log?

    Cheers,
    bc

    On Monday, December 24, 2012 2:58:09 PM UTC+8, Abdelrahman Hegazy wrote:

    Hey Hunter,
    Could you please explain what was the big thing, as I am stuck at same
    level and both wget, curl return same thing, but still can't access the CSM?

    On Saturday, December 22, 2012 2:39:29 AM UTC+8, Casey Ching wrote:

    Don't worry about it. It's good to know you got it working.
    On Fri, Dec 21, 2012 at 9:48 AM, Hunter McMillen wrote:

    It seems the issue is the outbound port allowances on my side of the
    connection. Sorry for wasting people's time.

    Hunter

    On Friday, December 21, 2012 12:27:54 PM UTC-5, Serega Sheypak wrote:

    Did you try wget or telnet using localhost from the host where manager
    is installed?
    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmi...@gmail.com>
    написал:

    Hello.
    I just recently started playing around with ec2, and am trying to
    start a hadoop cluster. I am currently following this guide:

    http://rogueleaderr.tumblr.**com**/post/32768181371/set-up-**and-**
    run-a-fully-distributed-**hadoop**-hbase-cluster<http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster>

    Which walks you through setting up a cluster using Whirr and Cloudera
    Manager. However I am unable to connect to my Cloudera manager on port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have
    opened all ports. Is there some other reason I can't connect to the manager
    ?

    Any input would be appreciated.
    Hunter.
  • bc Wong at Dec 27, 2012 at 6:11 pm
    [Adding scm-users]

    Hi Hegazi,

    Please include the list in your reply so others can benefit from your
    experience.

    Can you try these 2 commands on the host running CM:
    $ curl -i http://localhost:7180
    $ curl -i -u 'admin:admin' http://localhost:7180/api/v1/tools/echo

    If they return something, then your CM is running properly and you have a
    networking/firewall issue. You can even use w3m (or a similar text-base
    browser) on the CM host to check that you can get to a login screen.

    Cheers,
    bc

    On Wed, Dec 26, 2012 at 8:00 PM, Abdelrahman Hegazy
    wrote:
    Hello Bc,

    - those two commands are executed on my local machine
    - netstat gives it, I made sure of this thing many time the service is
    running and it listens in that port

    regarding the log file it is really all clean i have checked it many
    times before i send my e-mail.

    Cheers,
    Hegazi

    On Thu, Dec 27, 2012 at 3:50 AM, bc Wong wrote:
    On Mon, Dec 24, 2012 at 11:52 AM, Abdelrahman Hegazy <
    abdo.hegazy@gmail.com>
    wrote:
    Thanks Hunter for your reply,

    Does anybody has a suggested solution for this thing time-out I checked
    the log and out files and nothing is really attractive all ports
    allowed and
    curl, wget both are returning same thing.
    wget localhost:7180
    curl localhost:7180

    Hi,

    - On which host do you execute these commands?
    - Can you run `netstat -nltp | grep 7180' on the CM host?
    - If it's still not obvious by this point, can you please look for errors in
    (or attach) /var/log/cloudera-scm-server/cloudera-scm-server.log?

    Cheers,
    bc
    On Monday, December 24, 2012 2:58:09 PM UTC+8, Abdelrahman Hegazy wrote:

    Hey Hunter,
    Could you please explain what was the big thing, as I am stuck at same
    level and both wget, curl return same thing, but still can't access
    the CSM?
    On Saturday, December 22, 2012 2:39:29 AM UTC+8, Casey Ching wrote:

    Don't worry about it. It's good to know you got it working.

    On Fri, Dec 21, 2012 at 9:48 AM, Hunter McMillen <mcmi...@gmail.com>
    wrote:
    It seems the issue is the outbound port allowances on my side of the
    connection. Sorry for wasting people's time.

    Hunter

    On Friday, December 21, 2012 12:27:54 PM UTC-5, Serega Sheypak wrote:

    Did you try wget or telnet using localhost from the host where
    manager
    is installed?

    21.12.2012 20:01 пользователь "Hunter McMillen" <mcmi...@gmail.com>
    написал:
    Hello.

    I just recently started playing around with ec2, and am trying to
    start a hadoop cluster. I am currently following this guide:

    http://rogueleaderr.tumblr.com/post/32768181371/set-up-and-run-a-fully-distributed-hadoop-hbase-cluster
    Which walks you through setting up a cluster using Whirr and
    Cloudera
    Manager. However I am unable to connect to my Cloudera manager on
    port 7180
    (<instance_public_DNS>:7180), the request just times out.

    I have opened all needed ports, in fact for the time being I have
    opened all ports. Is there some other reason I can't connect to
    the manager
    ?

    Any input would be appreciated.
    Hunter.


    --
    Regards,
    Abdelrahman Hegazi
    PhD student, Computer Science,
    Faculty of Engineering,
    University Hong Kong.
    E-mail : abdo.hegazi@connect.hku.hk
    Mobile : (+852) 53053884

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postedDec 21, '12 at 4:01p
activeDec 27, '12 at 6:11p
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