[ClusterLabs] mdraid - pacemaker resource agent

[Jelen, Piotr]

HI, 

So, we have 3 nods in  the cluster ( 2 resource + 1 voting node) and The main purpose is to deliver the shares over NFS to the customer
Node List:
  * Online: [ host1, host2 ]

Full List of Resources:
  * Resource Group: NAS-GATEWAY:
    * mdadm0    (ocf::heartbeat:mdraid):         Started host1
    * mdadm1    (ocf::heartbeat:mdraid):         Started host1
    * nas_cluster_lvm   (ocf::heartbeat:LVM-activate):   Started host1
    * nfsshare  (ocf::heartbeat:Filesystem):     Started host1
    * nfs-daemon        (ocf::heartbeat:nfsserver):      Started host1
    * nfs_vip   (ocf::heartbeat:IPaddr2):        Started host1

Daemon Status:
  corosync: active/enabled
  pacemaker: active/enabled
  pcsd: active/enabled
  sbd: active/enabled
 
I will try to test the csync2 tool, but the problem might be find signed csync2 rpm package for Red Hat,

Best Regards
Piotr Jelen
Senior Systems Platform Engineer

Mastercard
Mountain View, Central Park  | Leopard


-----Original Message-----
From: Roger Zhou <zzhou at suse.com> 
Sent: Friday 9 December 2022 10:26
To: Jelen, Piotr <Piotr.Jelen at mastercard.com>; Cluster Labs - All topics related to open-source clustering welcomed <users at clusterlabs.org>
Cc: Nielsen, Laust <Laust.Nielsen at mastercard.com>
Subject: {EXTERNAL} Re: [ClusterLabs] mdraid - pacemaker resource agent

CAUTION: The message originated from an EXTERNAL SOURCE. Please use caution when opening attachments, clicking links or responding to this email.



On 12/9/22 17:36, Jelen, Piotr wrote:
> Hi Roger,
>
> Thank you for your quick reply,
> The mdraid resource agent works very well for us, Can you please tell 
> me if there is any resource agent or tool build in pacemaker  for sync configuration file(s) such as /etc/exports for nfs service between cluster nodes without mounting shares and creating symbolic link(s)  ?


I incline to ask you describe your use case a little bit more. Without knowing it well, my view might be not fit you.

csync2 is often used by ClusterLabs community. But it is an individual tool, and is not part of pacemaker. https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_linbit_csync2&d=DwIDaQ&c=uc5ZRXl8dGLM1RMQwf7xTCjRqXF0jmCF6SP0bDlmMmY&r=UzPNWvRnAChMyFZDGSUcEqtZElcu_XngP1GiT3HLUmI&m=0VgPA72qP5XpAr9TzizFodvYwOGTjSCkkrP_lbJSxW_0eg3Jut93Dbd6CL50Le0f&s=HuUc_fj7dKBgCr92yqVJyYjWAWU1ivqn0uXuGKk6mLo&e=

However, you refers to /etc/exports. I guess your use case is High Available NFS? If so, you could leverage `man ocf_heartbeat_exportfs`. But this resource agent doesn't use /etc/exports at all.


BR,
Roger



>
> Thank you
> Piotr Jelen
> Senior Systems Platform Engineer
>
> Mastercard
> Mountain View, Central Park  | Leopard
>
>
> -----Original Message-----
> From: Roger Zhou <zzhou at suse.com>
> Sent: Thursday 8 December 2022 05:56
> To: Cluster Labs - All topics related to open-source clustering 
> welcomed <users at clusterlabs.org>; Jelen, Piotr 
> <Piotr.Jelen at mastercard.com>
> Cc: Nielsen, Laust <Laust.Nielsen at mastercard.com>
> Subject: {EXTERNAL} Re: [ClusterLabs] mdraid - pacemaker resource 
> agent
>
> CAUTION: The message originated from an EXTERNAL SOURCE. Please use caution when opening attachments, clicking links or responding to this email.
>
>
>
> On 12/7/22 18:44, Jelen, Piotr wrote:
>> Hi ClusterLabs team ,
>>
>> I would like to ask if this resource agent was tested and if it can 
>> be use in production?
>> resource-agents/mdraid at main · ClusterLabs/resource-agents · GitHub 
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_Clus
>> t 
>> erLabs_resource-2Dagents_blob_main_heartbeat_mdraid&d=DwIDaQ&c=uc5ZRX
>> l 
>> 8dGLM1RMQwf7xTCjRqXF0jmCF6SP0bDlmMmY&r=UzPNWvRnAChMyFZDGSUcEqtZElcu_X
>> n 
>> gP1GiT3HLUmI&m=OHY6Rfbo326vRgEACkHp-D4nbNFyihVuQak3w9YeTXJQ1SeBV2P-c7
>> c GumwQuS51&s=pOg6p7HopMV1E14QJmLReC7z_2_IBPhFWTWst5YO1FA&e= >
>>
>
> Yes. Why not ;). We don't see big missing piece, though might have some improvement for the certain scenario. Anyway, you could report the issue, or provide improvement code, if any.
>
> Cheers,
> Roger
>
>>
>> Thank you
>>
>> *Piotr Jelen*
>>
>> Senior Systems Platform Engineer
>>
>> Mastercard
>>
>> Mountain View, Central Park  | Leopard
>>
>>        [mastercard.com] <http://www.mastercard.com>
>>
>>
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