[Pacemaker] CMAN nodes online
Gopalakrishnan N
gopalakrishnan.an at gmail.com
Tue Sep 17 12:13:48 UTC 2013
I think I have to use pcs instead of crmsh. Please correct me if am wrong,
I see this pdf document
http://clusterlabs.org/doc/Cluster_from_Scratch.pdf hope
this is the correct one. Please direct me whether I can follow the
document.
thanks.
On Tue, Sep 17, 2013 at 6:22 PM, Gopalakrishnan N <
gopalakrishnan.an at gmail.com> wrote:
> 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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