[Linux-cluster] Nodes are getting Down while relocating service

emmanuel segura emi2fast at gmail.com
Tue Jan 31 15:33:43 UTC 2012


it can be a multicast problem comunication

I had a same with a cluster running two oracle services

2012/1/31 Arun Purushothaman <arunkp1987 at gmail.com>

> Hi,
>
> We  are facing some issue while configuring cluster in Centos 5.5
>
>
> Here is the scenario where we got stuck.
>
> Issue:
>
> All nodes in the cluster turned of if cluster services restarted or
> disabled or enabled.
>
> Three services should work as a clustered service,
>
> 1.     Postgresql.
> 2.     GFS (1TB SAN space which is mounted on /var/lib/pgsql)
> 3.     Virtual IP (common IP)—IP 10.242.108.42
>
> Even we tried adding only Virtual IP as a cluster service then also,
>
> #clusvcadm  -r DBService –m ssdgblade2.db2   (from ssdgblade1.db1)
>
> Could not relocate the service and both node get turned off.
>
> Environment
>
> CentOS 5.5
> Postgresql 8.3.3
> Kernel version-2.6.18-194
> CentOs Cluster Suit.
>
> Hardware:
>
> 1.    Chasis IBM BladeCenter E.
> 2.    IBM HS22 blades (8 numbers)—clustering is done in blade1 and blade2
> 3.    Blade Management Module IP is 10.242.108.58
> 4.    Fence device IBM Bladecenter.( login successful via telnet and
> web browser to management module).
> 5.    Cisco Catalyst 2960G Switch.
>
> IP:
>
> 10.242.108.41 (ssdgblade1.db1)
> 10.242.108.43 (ssdgblade2.db2)
>
> Virtual IP 10.242.108.42
> Multicast IP 239.192.247.38
>
>
> Diagnostic Steps followed:
>
> 1.     Removed postgresql and GFS from cluster service and rebooted
> both the server with only VIP service. Still problem exist. Can not
> relocate the service.
> 2.    Tested fencing by,
>
> #fence_node ssdgblade2.db2   (from db1)
> #fence_node ssdgblade1.db1   (from db2)
>
> Can fence the given node.  But during boot up it fence the other node.
>
> Please find the attachment for your reference.
> --
>
>
> Thanks & Regards,
>
> *Arun K P
> *
>
> System Administrator
>
> *HCL Infosystems Ltd*.
>
> *Kolkata*
>
> Mob: +91- 9903361422
>
> *www.hclinfosystems.in* <http://www.hclinfosystems.in/>
>
> *Technology that touches lives* *TM*
> **
>
> --
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>



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