[Pacemaker] ERROR: Unable to find nic or netmask.
Sihan Goi
goister at gmail.com
Tue Sep 16 04:31:57 EDT 2014
Figured out the problem - the firewall rules are somehow not persistent.
After running the following commands:
iptables -I INPUT -m state --state NEW -p udp -m multiport --dports
5404,5405 -j ACCEPT
iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 2224 -j ACCEPT
iptables -I INPUT -p igmp -j ACCEPT
iptables -I INPUT -m addrtype --dst-type MULTICAST -j ACCEPT
service iptables save
Both nodes are able to communicate with each other.
Seems like several things aren't persistent upon reboots, and need to be
restarted/reconfigured. Is this the intended behavior?
On Tue, Sep 2, 2014 at 2:05 PM, Nikita Michalko <michalko.system at a-i-p.com>
wrote:
> 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> <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> <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> <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.
>
> _______________________________________________
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>
> Project Home: http://www.clusterlabs.org
> Getting started:
>
> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>
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>
>
>
> --
> - Goi Sihangoister at gmail.com
>
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.orghttp://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.orghttp://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.orghttp://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
>
>
--
- Goi Sihan
goister at gmail.com
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