date:20170223

[ClusterLabs] DC leaving the cluster: some odd messages

2017-02-23 Thread Ulrich Windl

Hi!

I cleanly stopped OpenAIS on a sLES11 SP4 node. On another node I saw some 
strange messages:

Feb 24 08:38:58 h01 corosync[2822]:  [pcmk  ] info: update_member: Node h10 now 
has process list: 0002 (2)
Feb 24 08:38:58 h01 corosync[2822]:  [pcmk  ] info: send_member_notification: 
Sending membership update 3360 to 5 children
Feb 24 08:38:58 h01 crmd[2832]:   notice: peer_update_callback: Our peer on the 
DC (h10) is dead
Feb 24 08:38:58 h01 stonith-ng[2828]:   notice: crm_update_peer_state: 
st_peer_update_callback: Node h10[739512330] - state is now lost (was member)
Feb 24 08:38:58 h01 cib[2827]:   notice: crm_update_peer_state: 
cib_peer_update_callback: Node h10[739512330] - state is now lost (was member)
Feb 24 08:38:58 h01 cib[2827]:   notice: crm_update_peer_state: 
plugin_handle_membership: Node h10[739512330] - state is now member (was lost)
Feb 24 08:38:58 h01 crmd[2832]:  warning: reap_dead_nodes: Our DC node (h10) 
left the cluster
Feb 24 08:38:58 h01 stonith-ng[2828]:   notice: crm_update_peer_state: 
plugin_handle_membership: Node h10[739512330] - state is now member (was lost)

So it looks like an down-up-down-up transition of node h10. Maybe this message 
contributes to the confusion:
Feb 24 08:38:58 h01 cib[2827]:  warning: cib_server_process_diff: Something 
went wrong in compatibility mode, requesting full refresh

Feb 24 08:38:58 h01 corosync[2822]:  [pcmk  ] info: ais_mark_unseen_peer_dead: 
Node h10 was not seen in the previous transition
Feb 24 08:38:58 h01 corosync[2822]:  [pcmk  ] info: update_member: Node 
739512330/h10 is now: lost

Feb 24 08:38:58 h01 crmd[2832]:   notice: crm_update_peer_state: 
plugin_handle_membership: Node h10[739512330] - state is now lost (was member)
Feb 24 08:38:58 h01 crmd[2832]:  warning: match_down_event: No match for 
shutdown action on h10
Feb 24 08:38:58 h01 crmd[2832]:   notice: peer_update_callback: 
Stonith/shutdown of h10 not matched
Feb 24 08:38:58 h01 crmd[2832]:   notice: crm_update_quorum: Updating quorum 
status to true (call=162)

What worries me a bit is "No match for shutdown action on h10": Shouldn't it be 
obvious from the CIB that h10 was intended to leave?

Regards,
Ulrich





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[ClusterLabs] Insert delay between the statup of VirtualDomain

2017-02-23 Thread Oscar Segarra

Hi,

In my environment I have 5 guestes that have to be started up in a
specified order starting for the MySQL database server.

I have set the order constraints and VirtualDomains start in the right
order but, the problem I have, is that the second host starts up faster
than the database server and therefore applications running on the second
host raise errors due to database connectivity problems.

I'd like to introduce a delay between the startup of the VirtualDomain of
the database server and the startup of the second guest.

¿Is it any way to get this?

Thanks a lot.
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Re: [ClusterLabs] How to configure my ocf_heartbeat_iscsi resource(s) such that I have both paths to the LUN?

2017-02-23 Thread Scott Greenlese


Refreshing this post in case anyone might have missed it...   still trying
to figure out some way to have multiple iscsi paths managed
by a single ocf_heartbeat_iscsi resource.  Any ideas?

Thanks!

Scott Greenlese ... KVM on System Z - Solutions Test, IBM Poughkeepsie,
N.Y.
  INTERNET:  swgre...@us.ibm.com




From:   Scott Greenlese/Poughkeepsie/IBM@IBMUS
To: users@clusterlabs.org
Cc: Si Bo Niu , Michael
Tebolt/Poughkeepsie/IBM@IBMUS
Date:   02/15/2017 12:18 PM
Subject:[ClusterLabs] How to configure my ocf_heartbeat_iscsi resource
(s) such that I have both paths to the LUN?



Hi folks,

I'm running some test scenarios with an ocf_heartbeat_iscsi pacemaker
resource,
using the following XIV multipath'ed configuration:

I created a single XIV iscsi host definition containing all the pacemaker
host (cluster node) 'Initiator's:

XIV 7812475>>host_list_ports host=pacemaker_iscsi
Host Type Port Name
pacemaker_iscsi iSCSI iqn.2005-03.org.open-iscsi:6539c3daf095
pacemaker_iscsi iSCSI iqn.2005-03.org.open-iscsi:11d639c0976c
pacemaker_iscsi iSCSI iqn.1994-05.com.redhat:74ca24d6476
pacemaker_iscsi iSCSI iqn.1994-05.com.redhat:ea17bebd09a
pacemaker_iscsi iSCSI iqn.1994-05.com.redhat:b852a67852c

Here is the XIV Target IP:port / IQN info:

10.20.92.108:3260
Target: iqn.2005-10.com.xivstorage:012475

10.20.92.109:3260
Target: iqn.2005-10.com.xivstorage:012475

I mapped a single 17Gb Lun to the XIV host: 20017380030BB110F


>From ocf_heartbeat_iscsi man page, it didn't seem obvious to me how I might
specify multiple
IP Portals (i.e. both the .108 and .109 IPs) to a single
ocf_heartbeat_iscsi resource. So,
I went ahead and configured my resource using just the .108 IP path, as
follows:

Using the above XIV definitions, I created a single iscsi pacemaker
resource using only one of the two IP
paths to the XIV LUN:

[root@zs95kj VD]# pcs resource show iscsi_r4

Resource: iscsi_r4 (class=ocf provider=heartbeat type=iscsi)
Attributes: portal=10.20.92.108:3260
target=iqn.2005-10.com.xivstorage:012475
Operations: start interval=0s timeout=120 (iscsi_r4-start-interval-0s)
stop interval=0s timeout=120 (iscsi_r4-stop-interval-0s)
monitor interval=120 timeout=30 (iscsi_r4-monitor-interval-120)

I'm looking for suggestions as to how I should configure my iscsi resource
(s) such that I have both paths (.108 and .109)
to the LUN available to my application? Do I need to create a second iscsi
resource for the .109 path, and colocate
them so that they move about the cluster together?

As an aside, I have run into situations where the second IP (.109) comes
online to where my iscsi_r4 resource is running (how or why,
I'm not sure), which introduces problems because iscsi_r4 only manages
the .108 connection.

Thanks in advance...

Scott Greenlese ... KVM on System Z - Solutions Test, IBM Poughkeepsie,
N.Y.
INTERNET: swgre...@us.ibm.com

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Re: [ClusterLabs] Fence agent for VirtualBox

2017-02-23 Thread durwin

Klaus Wenninger  wrote on 02/23/2017 01:12:19 AM:

> From: Klaus Wenninger 
> To: Cluster Labs - All topics related to open-source clustering 
> welcomed 
> Date: 02/23/2017 01:13 AM
> Subject: Re: [ClusterLabs] Fence agent for VirtualBox
> 
> On 02/23/2017 07:48 AM, Marek Grac wrote:
> > Hi,
> >
> > we have added support for a host with Windows but it is not trivial to
> > setup because of various contexts/privileges. 
> >
> > Install openssh on Windows (tutorial can be found on 
> > http://linuxbsdos.com/2015/07/30/how-to-install-openssh-on-windows-10/
)
> >
> > There is a major issue with current setup in Windows.  You have to
> > start virtual machines from openssh connection if you wish to manage
> > them from openssh connection.
> >
> 
> Have read about similar issues with openssh on Windows for other 
use-cases
> and that other ssh-implementations for Windows seem to do better / more
> userfriendly.

Any idea how Cygwin sshd would work?  I use Cygwin for everything and
already have sshd running.

Thank you,

Durwin

> 
> No personal experience from my side but maybe others on the list ...
> 
> Don't get me wrong - not speaking against free software - but on top of
> a non-free OS
> it makes less difference I guess.
> 
> > So, you have to connect from Windows to very same Windows using ssh
> > and then run 
> >
> > “/Program Files/Oracle/VirtualBox/VBoxManage.exe” start NAME_OF_VM
> >
> > Be prepared that you will not see that your machine VM is running in
> > VirtualBox
> > management UI.
> >
> > Afterwards it is enough to add parameter --host-os windows (or
> > host_os=windows when stdin/pcs is used).
> >
> > m,
> >
> > On Wed, Feb 22, 2017 at 11:49 AM, Marek Grac  > > wrote:
> >
> > Hi,
> >
> > I have updated fence agent for Virtual Box (upstream git). The
> > main benefit is new option --host-os (host_os on stdin) that
> > supports linux|macos. So if your host is linux/macos all you need
> > to set is this option (and ssh access to a machine). I would love
> > to add a support also for windows but I'm not able to run
> > vboxmanage.exe over the openssh. It works perfectly from command
> > prompt under same user, so there are some privileges issues, if
> > you know how to fix this please let me know.
> >
> > m,
> >
> >
> >
> >
> > ___
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http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
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> 
> 
> 
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Re: [ClusterLabs] Adding a node to the cluster deployed with "Unicast configuration"

2017-02-23 Thread Alejandro Comisario

Amazing, i will try to do that on ubuntu also and get back to you !
thanks for the help !

On Wed, Feb 22, 2017 at 5:08 PM, Ken Gaillot  wrote:
> On 02/22/2017 09:55 AM, Jan Friesse wrote:
>> Alejandro Comisario napsal(a):
>>> Hi everyone, i have a problem when scaling a corosync/pacemaker
>>> cluster deployed using unicast.
>>>
>>> eg on corosync.conf.
>>>
>>> nodelist {
>>> node {
>>> ring0_addr: 10.10.0.10
>>> nodeid: 1
>>> }
>>> node {
>>> ring0_addr: 10.10.0.11
>>> nodeid: 2
>>> }
>>> }
>>>
>>> Tried to add the new node with the new config (meaning, adding the new
>>> node) nad leaving the other two with the same config and started
>>> services on the third node, but doesnt seem to work until i update the
>>> config on the server #1 and #2 and restart corosync/pacemaker which
>>> does the obvious of bringing every resource down.
>>>
>>> There should be a way to "hot add" a new node to the cluster, but i
>>> dont seem to find one.
>>> what is the best way to add a node without bothering the rest ? or
>>> better said, what is the right way to do it ?
>>
>> Adding node is possible with following process:
>> - Add node to config file on both existing nodes
>> - Exec corosync-cfgtool -R (it's enough to exec only on one of nodes)
>> - Make sure 3rd (new) node has same config as two existing nodes
>> - Start corosync/pcmk on new node
>>
>> This is (more or less) how pcs works. No stopping of corosync is needed.
>>
>> Regards,
>>   Honza
>
> Ah, noted ... I need to update some upstream docs :-)
>
>>>
>>> PS: i can't implement multicast on my network.
>>>
>
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-- 
Alejandro Comisario
CTO | NUBELIU
E-mail: alejandro@nubeliu.comCell: +54 9 11 3770 1857
_
www.nubeliu.com

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Re: [ClusterLabs] Oralsnr/Oracle resources agents

2017-02-23 Thread emmanuel segura

I think no, in /usr/lib/ocf/resource.d/heartbeat/oralsnr

start function, oralsnr_start = "output=`echo lsnrctl start $listener
| runasdba`"
stop function, oralsnr_stop = "output=`echo lsnrctl stop $listener | runasdba`"

Where listener variable is the resource agent parameter given by
pacemaker : #   OCF_RESKEY_listener (optional; defaults to LISTENER)

Why don't use one listener per instance?

2017-02-23 16:37 GMT+01:00 Jihed M'selmi :
> I was reading the oralsnr script, I found that to stop a listener the agent
> uses the lsnrctl to stop the instances.
>
> My questions,  how to configure this agent for an oracle listener attached
> the multiple instance ?
>
> My 2nd quest, is it possible to enhance the ora-common.sh and
> resource.d/oracle to take in account the flag y/n in the oratab in order to
> start the database or no ?
>
> Cheers,
>
> --
>
>
> Jihed MSELMI
> RHCE, RHCSA, VCP4
> 10 Villa Stendhal, 75020 Paris France
> Mobile: +33 (0) 753768653
>
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>



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[ClusterLabs] Oralsnr/Oracle resources agents

2017-02-23 Thread Jihed M'selmi

I was reading the oralsnr script, I found that to stop a listener the agent
uses the lsnrctl to stop the instances.

My questions,  how to configure this agent for an oracle listener attached
the multiple instance ?

My 2nd quest, is it possible to enhance the ora-common.sh and
resource.d/oracle to take in account the flag y/n in the oratab in order to
start the database or no ?

Cheers,

-- 


Jihed MSELMI
RHCE, RHCSA, VCP4
10 Villa Stendhal, 75020 Paris France
Mobile: +33 (0) 753768653
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Re: [ClusterLabs] Fence agent for VirtualBox

2017-02-23 Thread Kristoffer Grönlund

Marek Grac  writes:

> Hi,
>
> we have added support for a host with Windows but it is not trivial to
> setup because of various contexts/privileges.
>
> Install openssh on Windows (tutorial can be found on
> http://linuxbsdos.com/2015/07/30/how-to-install-openssh-on-windows-10/)
>
> There is a major issue with current setup in Windows.  You have to start
> virtual machines from openssh connection if you wish to manage them from
> openssh connection.
>
> So, you have to connect from Windows to very same Windows using ssh and
> then run
>
> “/Program Files/Oracle/VirtualBox/VBoxManage.exe” start NAME_OF_VM
>
> Be prepared that you will not see that your machine VM is running in
> VirtualBox
> management UI.
>
> Afterwards it is enough to add parameter --host-os windows (or
> host_os=windows when stdin/pcs is used).
>

Cool, nice work!

Cheers,
Kristoffer

> m,
>
> On Wed, Feb 22, 2017 at 11:49 AM, Marek Grac  wrote:
>
>> Hi,
>>
>> I have updated fence agent for Virtual Box (upstream git). The main
>> benefit is new option --host-os (host_os on stdin) that supports
>> linux|macos. So if your host is linux/macos all you need to set is this
>> option (and ssh access to a machine). I would love to add a support also
>> for windows but I'm not able to run vboxmanage.exe over the openssh. It
>> works perfectly from command prompt under same user, so there are some
>> privileges issues, if you know how to fix this please let me know.
>>
>> m,
>>
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// kgronl...@suse.com

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Re: [ClusterLabs] Fence agent for VirtualBox

2017-02-23 Thread Klaus Wenninger

On 02/23/2017 07:48 AM, Marek Grac wrote:
> Hi,
>
> we have added support for a host with Windows but it is not trivial to
> setup because of various contexts/privileges. 
>
> Install openssh on Windows (tutorial can be found on 
> http://linuxbsdos.com/2015/07/30/how-to-install-openssh-on-windows-10/)
>
> There is a major issue with current setup in Windows.  You have to
> start virtual machines from openssh connection if you wish to manage
> them from openssh connection.
>

Have read about similar issues with openssh on Windows for other use-cases
and that other ssh-implementations for Windows seem to do better / more
userfriendly.

No personal experience from my side but maybe others on the list ...

Don't get me wrong - not speaking against free software - but on top of
a non-free OS
it makes less difference I guess.

> So, you have to connect from Windows to very same Windows using ssh
> and then run 
>
> “/Program Files/Oracle/VirtualBox/VBoxManage.exe” start NAME_OF_VM
>
> Be prepared that you will not see that your machine VM is running in
> VirtualBox
> management UI.
>
> Afterwards it is enough to add parameter --host-os windows (or
> host_os=windows when stdin/pcs is used).
>
> m,
>
> On Wed, Feb 22, 2017 at 11:49 AM, Marek Grac  > wrote:
>
> Hi,
>
> I have updated fence agent for Virtual Box (upstream git). The
> main benefit is new option --host-os (host_os on stdin) that
> supports linux|macos. So if your host is linux/macos all you need
> to set is this option (and ssh access to a machine). I would love
> to add a support also for windows but I'm not able to run
> vboxmanage.exe over the openssh. It works perfectly from command
> prompt under same user, so there are some privileges issues, if
> you know how to fix this please let me know.
>
> m,
>
>
>
>
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> http://lists.clusterlabs.org/mailman/listinfo/users
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> Bugs: http://bugs.clusterlabs.org



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[ClusterLabs] DC leaving the cluster: some odd messages

[ClusterLabs] Insert delay between the statup of VirtualDomain

Re: [ClusterLabs] How to configure my ocf_heartbeat_iscsi resource(s) such that I have both paths to the LUN?

Re: [ClusterLabs] Fence agent for VirtualBox

Re: [ClusterLabs] Adding a node to the cluster deployed with "Unicast configuration"

Re: [ClusterLabs] Oralsnr/Oracle resources agents

[ClusterLabs] Oralsnr/Oracle resources agents

Re: [ClusterLabs] Fence agent for VirtualBox

Re: [ClusterLabs] Fence agent for VirtualBox

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