[Pacemaker] CMAN nodes online
Gopalakrishnan N
gopalakrishnan.an at gmail.com
Tue Sep 17 06:22:00 EDT 2013
While verifying I got this error, crm_verify -L -V
error: unpack_resources: Resource start-up disabled since no STONITH
resources have been defined
error: unpack_resources: Either configure some or disable STONITH
with the stonith-enabled option
error: unpack_resources: NOTE: Clusters with shared data need
STONITH to ensure data integrity
Looks like stonith has to be configured. Also to do that I don't have CRM
application.
I think I have to install from here "wget -P /etc/yum.repos.d/
http://download.opensuse.org/repositories/network:/ha-clustering/CentOS_CentOS-6/network:ha-clustering.repo"
and then #yum install crmsh.x86_64
But it didn't worked for me. I stuck in here with this stonith.
On Tue, Sep 17, 2013 at 5:29 PM, Gopalakrishnan N <
gopalakrishnan.an at gmail.com> wrote:
> But now pacemaker not able to connect with cib, connection refused,
> [root at test01 ~]# crm_mon -1
> Could not establish cib_ro connection: Connection refused (111)
>
> Connection to cluster failed: Transport endpoint is not connected
>
>
>
> On Tue, Sep 17, 2013 at 5:26 PM, Gopalakrishnan N <
> gopalakrishnan.an at gmail.com> wrote:
>
>> Now am able to see both nodes are registered...
>>
>> Node Sts Inc Joined Name
>> 1 M 124 2013-09-17 22:05:31 test01.iopextech.com
>> 2 M 132 2013-09-17 22:31:33 test02.iopextech.com
>>
>> Is there any timeout option, where i can increase or decrease based on
>> this?
>>
>> Thanks..
>>
>>
>> On Tue, Sep 17, 2013 at 4:53 PM, Gopalakrishnan N <
>> gopalakrishnan.an at gmail.com> wrote:
>>
>>> Even after giving FQDN in my /etc/hosts and /etc/sysconf/network also
>>> updated in cluster.conf, propogated to other node as well, but still its
>>> showing only one node. And muticast also enabled in my switch.
>>>
>>>
>>>
>>>
>>> On Mon, Sep 16, 2013 at 11:52 PM, Gopalakrishnan N <
>>> gopalakrishnan.an at gmail.com> wrote:
>>>
>>>> My /etc/hosts is like this,
>>>> cat /etc/hosts
>>>> 127.0.0.1 localhost localhost.localdomain localhost4
>>>> localhost4.localdomain4
>>>> ::1 localhost localhost.localdomain localhost6
>>>> localhost6.localdomain6
>>>> 10.30.2.98 test01.iopextech.com test01
>>>> 10.30.2.99 test02.iopextech.com test02
>>>>
>>>>
>>>> and in my cluster.conf i have given the short name. So what you are
>>>> saying better to use FQDN...!
>>>>
>>>> I will try to give FQDN in all my configuration files.
>>>>
>>>> And will try. Let's see.
>>>>
>>>> Thanks for your comments.
>>>>
>>>>
>>>>
>>>> On Mon, Sep 16, 2013 at 11:41 PM, Florian Crouzat <
>>>> gentoo at floriancrouzat.net> wrote:
>>>>
>>>>> Le 16/09/2013 17:30, Gopalakrishnan N a écrit :
>>>>>
>>>>>> Hey Guys,
>>>>>>
>>>>>> The OS am running is CentOS 6.4 (64bit) and I have disabled IPtables
>>>>>> and
>>>>>> SeLinux.
>>>>>>
>>>>>> My goal is to make Apache Tomcat as HA. As a first step thought of
>>>>>> testing with Apache.
>>>>>>
>>>>>> My network setup is like this,
>>>>>> Node1 is connected to switch
>>>>>> Note2 is connected to switch.
>>>>>>
>>>>>> My cluster.conf file is as follows,
>>>>>> [root at test01 ~]# cat /etc/cluster/cluster.conf
>>>>>> <?xml version="1.0"?>
>>>>>> <cluster config_version="1" name="mycluster1">
>>>>>> <logging debug="off"/>
>>>>>> <clusternodes>
>>>>>> <clusternode name="test01" nodeid="1">
>>>>>> <fence>
>>>>>> <method name="pcmk-redirect">
>>>>>> <device name="pcmk" port="test01"/>
>>>>>> </method>
>>>>>> </fence>
>>>>>> </clusternode>
>>>>>> <clusternode name="test02" nodeid="2">
>>>>>> <fence>
>>>>>> <method name="pcmk-redirect">
>>>>>> <device name="pcmk" port="test02"/>
>>>>>> </method>
>>>>>> </fence>
>>>>>> </clusternode>
>>>>>> </clusternodes>
>>>>>> <fencedevices>
>>>>>> <fencedevice name="pcmk" agent="fence_pcmk"/>
>>>>>> </fencedevices>
>>>>>> </cluster>
>>>>>>
>>>>>>
>>>>>> And @some point of time am able to see both nodes are registered,
>>>>>> [root at test01 ~]# cman_tool nodes
>>>>>> Node Sts Inc Joined Name
>>>>>> 1 M 104 2013-09-17 02:01:11 test01
>>>>>> 2 M 108 2013-09-17 02:15:07 test02
>>>>>>
>>>>>> And @sometimes with crm_mon -1, I get the following
>>>>>>
>>>>>> [root at test01 ~]# crm_mon -1
>>>>>> Last updated: Tue Sep 17 02:47:27 2013
>>>>>> Last change: Tue Sep 17 00:42:43 2013 via crmd on test01
>>>>>> Stack: cman
>>>>>> Current DC: NONE
>>>>>> 4 Nodes configured, 2 expected votes
>>>>>> 0 Resources configured.
>>>>>>
>>>>>>
>>>>>> Node test01: UNCLEAN (offline)
>>>>>> Node test01.iopextech.com <http://test01.iopextech.com>: UNCLEAN
>>>>>> (offline)
>>>>>> Node test02: UNCLEAN (offline)
>>>>>> Node test02.iopextech.com <http://test02.iopextech.com>: UNCLEAN
>>>>>> (offline)
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>>
>>>>> Ok, if you are still unhappy with CMAN check your switch for multicast.
>>>>>
>>>>> From there, I assume you are happy with cman otherwise there are no
>>>>> reasons to start pacemaker, but you did, so you get my point ;)
>>>>>
>>>>> This kind of errors often indicates that your /etc/hosts or DNS is
>>>>> wrong and pacemaker has a hard time to map hostnames and IPs, etc (not sure
>>>>> about the internals there...)
>>>>> Get rid of the invalid nodes by editing the configuration; stop
>>>>> pacemaker; fix your resolutions and retry.
>>>>>
>>>>> In the entire process, I usually use FQDN in my cluster.conf file, and
>>>>> I add them and the corresponding ring IP in my /etc/hosts file on all
>>>>> nodes. I also use the same FQDN in my pacemaker configuration.
>>>>>
>>>>> Cheers
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Sep 16, 2013 at 8:40 PM, Florian Crouzat
>>>>>> <gentoo at floriancrouzat.net <mailto:gentoo at floriancrouzat.**net<gentoo at floriancrouzat.net>>>
>>>>>> wrote:
>>>>>>
>>>>>> Le 16/09/2013 14:18, Gopalakrishnan N a écrit :
>>>>>>
>>>>>> Do I need to have a cross over cable between each node? Is it
>>>>>> mandatory?
>>>>>>
>>>>>>
>>>>>> Nop it doesn't.
>>>>>> In your case, I'd check the network architecture and/or
>>>>>> firewalling
>>>>>> regarding multicast. You probably either have wrong iptables
>>>>>> and/or
>>>>>> a switch dropping your multicast corosync ring(s).
>>>>>>
>>>>>> Also, please, as Andreas said: try to communicate with us in a
>>>>>> more
>>>>>> efficient way: more context, more informations and more output
>>>>>> (pasted somewhere).
>>>>>>
>>>>>> We are happy to help people, but we don't have to waste our time
>>>>>> trying to understand what these exact people doesn't tell us
>>>>>> because
>>>>>> they are lazy.
>>>>>>
>>>>>> ps: also use 'corosync-objctl' ; it's a good command to debug
>>>>>> rings
>>>>>> and configurations.
>>>>>>
>>>>>> Cheers,
>>>>>> Florian.
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Sep 16, 2013 at 8:01 PM, Gopalakrishnan N
>>>>>> <gopalakrishnan.an at gmail.com
>>>>>> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan.an at gmail.com>
>>>>>> >
>>>>>> <mailto:gopalakrishnan.an at __gm**ail.com <http://gmail.com>
>>>>>>
>>>>>> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan.an at gmail.com>>>>
>>>>>> wrote:
>>>>>>
>>>>>> Again the when i restarted the pacemaker and cman not the
>>>>>> nodes are
>>>>>> not in online, back to square 1.
>>>>>>
>>>>>> node1 shows only node1 online, and node2 says node2
>>>>>> online.
>>>>>> I don't
>>>>>> know what's happening in the background...
>>>>>>
>>>>>> Any advice would be appreciated..
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>>
>>>>>> On Mon, Sep 16, 2013 at 6:47 PM, Gopalakrishnan N
>>>>>> <gopalakrishnan.an at gmail.com
>>>>>> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan.an at gmail.com>
>>>>>> >
>>>>>> <mailto:gopalakrishnan.an at __gm**ail.com <http://gmail.com>
>>>>>>
>>>>>> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan.an at gmail.com>
>>>>>> >>>
>>>>>>
>>>>>> wrote:
>>>>>>
>>>>>> Hi guys,
>>>>>>
>>>>>> I got it, basically it tool some time to propogate
>>>>>> and
>>>>>> now two
>>>>>> nodes are showing online...
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>>
>>>>>> On Mon, Sep 16, 2013 at 6:39 PM, Gopalakrishnan N
>>>>>> <gopalakrishnan.an at gmail.com
>>>>>> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan.an at gmail.com>
>>>>>> >
>>>>>> <mailto:gopalakrishnan.an at __gm**ail.com<http://gmail.com>
>>>>>>
>>>>>> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan.an at gmail.com>>>>
>>>>>> wrote:
>>>>>>
>>>>>> I have configured CMAN as per the link
>>>>>> http://clusterlabs.org/doc/en-**__US/Pacemaker/1.1-plugin/**
>>>>>> html-__single/Clusters_from_**Scratch/__index.html#_**
>>>>>> configuring_cman<http://clusterlabs.org/doc/en-__US/Pacemaker/1.1-plugin/html-__single/Clusters_from_Scratch/__index.html#_configuring_cman>
>>>>>>
>>>>>> <http://clusterlabs.org/doc/**en-US/Pacemaker/1.1-plugin/**
>>>>>> html-single/Clusters_from_**Scratch/index.html#_**configuring_cman<http://clusterlabs.org/doc/en-US/Pacemaker/1.1-plugin/html-single/Clusters_from_Scratch/index.html#_configuring_cman>
>>>>>> >
>>>>>> but
>>>>>> when I type cman_tools nodes only one node is
>>>>>> online even
>>>>>> thought the cluster.conf is propogated in other
>>>>>> node as well.
>>>>>>
>>>>>> what could be the reason, in node1, cman_tool
>>>>>> nodes
>>>>>> shows
>>>>>> only node1 online, in node2 it shows only node2
>>>>>> is
>>>>>> online.
>>>>>> How to make two nodes as online, even thought
>>>>>> CMAN
>>>>>> service
>>>>>> is running in both nodes.
>>>>>>
>>>>>> Thanks in advance.
>>>>>>
>>>>>> Regards,
>>>>>> Gopal
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> ______________________________**___________________
>>>>>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>>>>>> <mailto:Pacemaker at oss.**clusterlabs.org<Pacemaker at oss.clusterlabs.org>
>>>>>> >
>>>>>> http://oss.clusterlabs.org/__**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/__mailman/listinfo/pacemaker>
>>>>>>
>>>>>> <http://oss.clusterlabs.org/**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/mailman/listinfo/pacemaker>
>>>>>> >
>>>>>>
>>>>>> Project Home: http://www.clusterlabs.org
>>>>>> Getting started:
>>>>>> http://www.clusterlabs.org/__**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/__doc/Cluster_from_Scratch.pdf>
>>>>>>
>>>>>> <http://www.clusterlabs.org/**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf>
>>>>>> >
>>>>>> Bugs: http://bugs.clusterlabs.org
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Cheers,
>>>>>> Florian Crouzat
>>>>>>
>>>>>> ______________________________**___________________
>>>>>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>>>>>> <mailto:Pacemaker at oss.**clusterlabs.org<Pacemaker at oss.clusterlabs.org>
>>>>>> >
>>>>>> http://oss.clusterlabs.org/__**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/__mailman/listinfo/pacemaker>
>>>>>>
>>>>>> <http://oss.clusterlabs.org/**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/mailman/listinfo/pacemaker>
>>>>>> >
>>>>>>
>>>>>> Project Home: http://www.clusterlabs.org
>>>>>> Getting started:
>>>>>> http://www.clusterlabs.org/__**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/__doc/Cluster_from_Scratch.pdf>
>>>>>>
>>>>>> <http://www.clusterlabs.org/**doc/Cluster_from_Scratch.pdf<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<http://oss.clusterlabs.org/mailman/listinfo/pacemaker>
>>>>>>
>>>>>> Project Home: http://www.clusterlabs.org
>>>>>> Getting started: http://www.clusterlabs.org/**
>>>>>> doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf>
>>>>>> Bugs: http://bugs.clusterlabs.org
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> Cheers,
>>>>> Florian Crouzat
>>>>>
>>>>> ______________________________**_________________
>>>>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>>>>> http://oss.clusterlabs.org/**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/mailman/listinfo/pacemaker>
>>>>>
>>>>> Project Home: http://www.clusterlabs.org
>>>>> Getting started: http://www.clusterlabs.org/**
>>>>> doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf>
>>>>> Bugs: http://bugs.clusterlabs.org
>>>>>
>>>>
>>>>
>>>
>>
>
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