[Pacemaker] ERROR: Unable to find nic or netmask.

Nikita Michalko michalko.system at a-i-p.com
Tue Sep 2 02:05:14 EDT 2014 

Hi,

maybe is following helpfull:

https://www.google.at/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CDEQFjAB&url=http%3A%2F%2Fhttpd.apache.org%2Fdocs%2Ftrunk%2Fbind.html&ei=QV0FVK2YBYHO0QXPxYHQDw&usg=AFQjCNGCErofEEVtclS_x6ZXA3bXvJiaww&sig2=hR8kUWRcpmN4PE1V42t9kg&bvm=bv.74115972,d.bGE

https://www.google.at/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CC0QrAIwAA&url=http%3A%2F%2Fubuntuforums.org%2Fshowthread.php%3Ft%3D1636667&ei=QV0FVK2YBYHO0QXPxYHQDw&usg=AFQjCNHcs7alJ_RwBc4tWq2X7ew4ynEmzg&sig2=ra1qjZ8nly8opwawrACidw&bvm=bv.74115972,d.bGE


HTH

Nikita


On 02.09.2014 07:47, Sihan Goi wrote:
> Hi,
>
> After some investigation, it seems that my Apache is having trouble
> starting in both nodes. I get the following error message when I try to
> restart the service:
>
> Job for httpd.service failed. See 'systemctl status httpd.service' and
> 'journalctl -xn' for details.
>
> "systemctl status httpd.service" shows the following output:
>
> httpd.service - The Apache HTTP Server
>     Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled)
>     Active: failed (Result: exit-code) since Tue 2014-09-02 13:45:52 SGT; 8s
> ago
>    Process: 26095 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited,
> status=0/SUCCESS)
>    Process: 26093 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND
> (code=exited, status=1/FAILURE)
>   Main PID: 26093 (code=exited, status=1/FAILURE)
>
> Sep 02 13:45:52 node02 httpd[26093]: AH00558: httpd: Could not reliably
> det...ge
> Sep 02 13:45:52 node02 httpd[26093]: (98)Address already in use: AH00072:
> m...80
> Sep 02 13:45:52 node02 httpd[26093]: no listening sockets available,
> shutti...wn
> Sep 02 13:45:52 node02 httpd[26093]: AH00015: Unable to open logs
> Sep 02 13:45:52 node02 systemd[1]: httpd.service: main process exited,
> code...RE
> Sep 02 13:45:52 node02 systemd[1]: Failed to start The Apache HTTP Server.
> Sep 02 13:45:52 node02 systemd[1]: Unit httpd.service entered failed state.
> Hint: Some lines were ellipsized, use -l to show in full.
>
> /var/log/messages also shows similar messages
>
> Sep  2 13:41:12 node02 systemd: Starting The Apache HTTP Server...
> Sep  2 13:41:12 node02 httpd: AH00558: httpd: Could not reliably determine
> the server's fully qualified domain name, using 192.168.0.112. Set the
> 'ServerName' directive globally to suppress this message
> Sep  2 13:41:12 node02 httpd: (98)Address already in use: AH00072:
> make_sock: could not bind to address 127.0.0.1:80
> Sep  2 13:41:12 node02 httpd: no listening sockets available, shutting down
> Sep  2 13:41:12 node02 httpd: AH00015: Unable to open logs
> Sep  2 13:41:12 node02 systemd: httpd.service: main process exited,
> code=exited, status=1/FAILURE
> Sep  2 13:41:12 node02 systemd: Failed to start The Apache HTTP Server.
> Sep  2 13:41:12 node02 systemd: Unit httpd.service entered failed state.
>
> Is this related to the problem?
>
>
>
> On Tue, Sep 2, 2014 at 12:42 PM, Teerapatr Kittiratanachai <
> maillist.tk at gmail.com> wrote:
>
>> Try to set cidr_netmask=32 for resource only, and let the physical
>> interface's netmask be 24.
>>
>> On Tue, Sep 2, 2014 at 11:27 AM, Sihan Goi <goister at gmail.com> wrote:
>>> Got it. Changed the netmask for both PCs to 255.255.255.0 and changed
>>> cidr_netmask to 24 and it works...sort of.
>>>
>>> It was working for a while, and then I rebooted both PCs, and now each
>>> thinks its online and the other is offline.
>>>
>>> "pcs status" on my node01 gives the following output:
>>> Cluster name: cluster_web
>>> Last updated: Tue Sep  2 12:21:25 2014
>>> Last change: Tue Sep  2 12:13:27 2014 via cibadmin on node02
>>> Stack: corosync
>>> Current DC: node01 (1) - partition WITHOUT quorum
>>> Version: 1.1.10-32.el7_0-368c726
>>> 2 Nodes configured
>>> 2 Resources configured
>>>
>>>
>>> Online: [ node01 ]
>>> OFFLINE: [ node02 ]
>>>
>>> Full list of resources:
>>>
>>>   virtual_ip    (ocf::heartbeat:IPaddr2):    Started node01
>>>   webserver    (ocf::heartbeat:apache):    Started node01
>>>
>>> PCSD Status:
>>>    node01: Offline
>>>    node02: Online
>>>
>>> Daemon Status:
>>>    corosync: active/disabled
>>>    pacemaker: active/disabled
>>>    pcsd: active/disabled
>>>
>>> However, "pcs status" on node02 shows the following output:
>>> Cluster name: cluster_web
>>> Last updated: Tue Sep  2 12:20:41 2014
>>> Last change: Tue Sep  2 11:59:03 2014 via cibadmin on node02
>>> Stack: corosync
>>> Current DC: node02 (2) - partition WITHOUT quorum
>>> Version: 1.1.10-32.el7_0-368c726
>>> 2 Nodes configured
>>> 2 Resources configured
>>>
>>>
>>> Online: [ node02 ]
>>> OFFLINE: [ node01 ]
>>>
>>> Full list of resources:
>>>
>>>   virtual_ip    (ocf::heartbeat:IPaddr2):    Started node02
>>>   webserver    (ocf::heartbeat:apache):    Started node02
>>>
>>> PCSD Status:
>>>    node01: Offline
>>>    node02: Online
>>>
>>> Daemon Status:
>>>    corosync: active/disabled
>>>    pacemaker: active/disabled
>>>    pcsd: active/disabled
>>>
>>> Seems like each node thinks it's online and the other is not. I'm
>> running HA
>>> on apache webserver, and if I access the webpage on node01, I get
>> node01's
>>> index.html. If I access it on node02, I get node02's index.html. If I
>> access
>>> it via another PC connected to the same AP, the webpage is unavailable.
>>>
>>> What could be wrong?
>>>
>>>
>>> On Mon, Sep 1, 2014 at 9:09 PM, John Lauro <john.lauro at covenanteyes.com>
>>> wrote:
>>>> ip=192.168.0.110 cidr_netmask=32
>>>> /32 leaves no room for any other IP addresses on that interface and so
>> you
>>>> have to specify the nic.  Are you certain 192.168.0.111 and
>> 192.168.0.112 do
>>>> not have a different netmask from 255.255.255.255, like 255.255.255.0
>> for
>>>> /24 or 255.255.0.0 for /16?  If they do have 255.255.255.255 too, then
>> they
>>>> are probably not setup correctly...
>>>>
>>>> PS: cidr_netmask is optional.  Assuming a proper netmask (not
>>>> 255.255.255.2555) is on 192.168.0.111 and 192.168.0.112 it should work
>>>> without specifying cidr_netmask.
>>>>
>>>>
>>>> ________________________________
>>>>
>>>> From: "Sihan Goi" <goister at gmail.com>
>>>> To: pacemaker at oss.clusterlabs.org
>>>> Sent: Monday, September 1, 2014 4:17:20 AM
>>>> Subject: [Pacemaker] ERROR: Unable to find nic or netmask.
>>>>
>>>>
>>>> Hi,
>>>>
>>>> I'm trying to create a HA cluster with 2 CentOS 7 PCs connected to a
>>>> wireless AP. The PCs have the static IP addresses 192.168.0.111 and
>>>> 192.168.0.112 respectively and hostnames node01 and node02 respectively.
>>>>
>>>> I've tried to create a virtual IP address of 192.168.0.110 using the
>>>> following command:
>>>>
>>>> pcs resource create virtual_ip ocf:heartbeat:IPaddr2 ip=192.168.0.110
>>>> cidr_netmask=32 op monitor interval=30s
>>>>
>>>> However, when I do a "pcs status resources" I get the following output:
>>>>
>>>>   virtual_ip    (ocf::heartbeat:IPaddr2):    Stopped
>>>>
>>>> The virtual IP is stopped rather than started. I looked into
>>>> /var/log/messages and /var/log/pacemaker.log
>>>>   and I find the following error messages:
>>>>
>>>> node02 IPaddr2(virtual_ip)[25451]: ERROR: Unable to find nic or netmask.
>>>> node02 IPaddr2(virtual_ip)[25451]: ERROR: [findif] failed
>>>>
>>>> It seems that it's unable to find my nic. How can I fix this?
>>>>
>>>> Thanks.
>>>>
>>>> _______________________________________________
>>>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>>>> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>>>>
>>>> Project Home: http://www.clusterlabs.org
>>>> Getting started:
>> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>>>> Bugs: http://bugs.clusterlabs.org
>>>>
>>>>
>>>
>>>
>>> --
>>> - Goi Sihan
>>> goister at gmail.com
>>>
>>> _______________________________________________
>>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>>> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>>>
>>> Project Home: http://www.clusterlabs.org
>>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>>> Bugs: http://bugs.clusterlabs.org
>>>
>> _______________________________________________
>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>>
>> Project Home: http://www.clusterlabs.org
>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>> Bugs: http://bugs.clusterlabs.org
>>
>
>
>
>
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org

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