FAQ
HI everyone

I am using cloudera manager 4.5 and cdh 4.2

I have just added a new host to the cloudera manager through the web
interface.
The host is listed in the host tab and the host check says it's fine.

My problem is that I now what to use this host in the hdfs service as an
extra datanode.
When I select the hdfs service and the add button in the instance tab I see
all my current hosts and their role but I don't see the new host.
I haa the same behaviour for all services, MR,hbase ...
My firewall is open on every port.

I fail to see what I am missign to add this new host to any service.

Thanks in advance for any input on this issue.

regards

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  • Mike Mellenthin at Mar 5, 2013 at 5:03 pm
    Nicolas,

    Is the host associated with a cluster? That is, what does the "Cluster"
    column say for your new host on the Hosts page?

    If it's not part of a cluster, or part of a different cluster, it won't
    show up in the service you are trying to add it to.

    mike

    On Tue, Mar 5, 2013 at 8:48 AM, Nicolas Maillard wrote:

    HI everyone

    I am using cloudera manager 4.5 and cdh 4.2

    I have just added a new host to the cloudera manager through the web
    interface.
    The host is listed in the host tab and the host check says it's fine.

    My problem is that I now what to use this host in the hdfs service as an
    extra datanode.
    When I select the hdfs service and the add button in the instance tab I
    see all my current hosts and their role but I don't see the new host.
    I haa the same behaviour for all services, MR,hbase ...
    My firewall is open on every port.

    I fail to see what I am missign to add this new host to any service.

    Thanks in advance for any input on this issue.

    regards

  • Nicolas Maillard at Mar 5, 2013 at 5:52 pm
    HI Mike

    Thanks for the help.
    So wierd thing my new host is present but however does not belong to the
    cluster, you were right.

    When I try to add it to the cluster it goes through the whole installation
    process fine but times out at the end on waiting for cloudera agent signal
    it's presence.
    I have made sur the port 7182,9000,9001 are open and all in all, all ports
    are open between my main machine and this new host.
    My /etc/hosts file looks like:
    127.0.0.1 localhost.localdomain localhost
    ip myhost@host.com myhost

    On the new host in the cloudera agent log: I find
    filesystem_map ERROR Timed out collecting nodev filesystem usage
    which might be prt of the reason.


    On Tue, Mar 5, 2013 at 6:03 PM, Mike Mellenthin wrote:

    Nicolas,

    Is the host associated with a cluster? That is, what does the "Cluster"
    column say for your new host on the Hosts page?

    If it's not part of a cluster, or part of a different cluster, it won't
    show up in the service you are trying to add it to.

    mike


    On Tue, Mar 5, 2013 at 8:48 AM, Nicolas Maillard <
    nicolas.maillard@fifty-five.com> wrote:
    HI everyone

    I am using cloudera manager 4.5 and cdh 4.2

    I have just added a new host to the cloudera manager through the web
    interface.
    The host is listed in the host tab and the host check says it's fine.

    My problem is that I now what to use this host in the hdfs service as an
    extra datanode.
    When I select the hdfs service and the add button in the instance tab I
    see all my current hosts and their role but I don't see the new host.
    I haa the same behaviour for all services, MR,hbase ...
    My firewall is open on every port.

    I fail to see what I am missign to add this new host to any service.

    Thanks in advance for any input on this issue.

    regards

  • Herman Chen at Mar 5, 2013 at 6:34 pm
    Hi Nicolas,

    Since the host is already managed, you should not go through the
    installation process again. There should be a tab for "Currently
    Managed Hosts" that will perform the association without going through
    installation again.

    Herman

    On Tue, Mar 5, 2013 at 9:52 AM, Nicolas Maillard
    wrote:
    HI Mike

    Thanks for the help.
    So wierd thing my new host is present but however does not belong to the
    cluster, you were right.

    When I try to add it to the cluster it goes through the whole installation
    process fine but times out at the end on waiting for cloudera agent signal
    it's presence.
    I have made sur the port 7182,9000,9001 are open and all in all, all ports
    are open between my main machine and this new host.
    My /etc/hosts file looks like:
    127.0.0.1 localhost.localdomain localhost
    ip myhost@host.com myhost

    On the new host in the cloudera agent log: I find
    filesystem_map ERROR Timed out collecting nodev filesystem usage
    which might be prt of the reason.


    On Tue, Mar 5, 2013 at 6:03 PM, Mike Mellenthin wrote:

    Nicolas,

    Is the host associated with a cluster? That is, what does the "Cluster"
    column say for your new host on the Hosts page?

    If it's not part of a cluster, or part of a different cluster, it won't
    show up in the service you are trying to add it to.

    mike


    On Tue, Mar 5, 2013 at 8:48 AM, Nicolas Maillard
    wrote:
    HI everyone

    I am using cloudera manager 4.5 and cdh 4.2

    I have just added a new host to the cloudera manager through the web
    interface.
    The host is listed in the host tab and the host check says it's fine.

    My problem is that I now what to use this host in the hdfs service as an
    extra datanode.
    When I select the hdfs service and the add button in the instance tab I
    see all my current hosts and their role but I don't see the new host.
    I haa the same behaviour for all services, MR,hbase ...
    My firewall is open on every port.

    I fail to see what I am missign to add this new host to any service.

    Thanks in advance for any input on this issue.

    regards

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postedMar 5, '13 at 4:48p
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