[Linux-cluster] cannot run cluster service

[Shanti Pahari]

Hi Andrew,

 

Now I added following in my lvm.conf

volume_list = [ "vg_pdcpicpl02", "@PDC-PIC-PL-CL1", "@PDC-PIC-PL-CL2" ]

and

# dracut --hostonly --force /boot/initramfs-$(uname -r).img $(uname -r)

# shutdown -r now "Activating ramdisk LVM changes"

 

After that when the system tries to boot up:

Kernel panic - not syncing: Attempted to kill init!

 

So didn't have luck L

 


volume_list = [ "vg_pdcpicpl02", "@PDC-PIC-PL-CL1", "@PDC-PIC-PL-CL2" ]

The hostname should be cluster connect name or initial hostname ?

My /etc/hosts:

 

192.168.24.32   PDC-PIC-PL-01   PDC-PIC-PL-01.chcs.sg

192.168.25.132  PDC-PIC-PL-01-PM        

192.168.26.13   PDC-PIC-PL-CL1

192.168.24.33   PDC-PIC-PL-02  PDC-PIC-PL-02.chcs.sg

192.168.25.133  PDC-PIC-PL-02-PM

192.168.26.14   PDC-PIC-PL-CL2

 

 

 

From: Andrew Denton [mailto:andrewd at sterling.net] 
Sent: Wednesday, 10 October, 2012 11:27 PM
To: linux clustering
Cc: Shanti Pahari
Subject: Re: [Linux-cluster] cannot run cluster service

 

On 10/10/2012 12:06 AM, Shanti Pahari wrote:

I have cluster setup with 2 node and created web cluster service on it but
it cannot run. 

I have not listed anything in lvm.conf volume_list because once I add
anything in volume_list and reboot the system then I cannot mount and even
cannot read the lv which I created for my web . It throws error as 

error message "not activating volume group lv does not pass activation
filter"

Therefore I didn't add anything in lvm.conf . Then I try to start my
cluster servers for web server but the service failed.


I've seen this failure too when building my cluster. You either need to
add the system's volume groups to volume_list, or tag the system's vgs
with the @hostname so it can still activate them. 
e.g.
    volume_list = [ "vg_pdcpicpl01", "@PDC-PIC-PL-CL1", "@PDC-PIC-PL-CL2"
]
on one node and
    volume_list = [ "vg_pdcpicpl02", "@PDC-PIC-PL-CL1", "@PDC-PIC-PL-CL2"
]
on the other. Next it will complain about initrd being older than
lvm.conf, so I've been running
# mkinitrd -f /boot/initrd-`uname -r`.img `uname -r`
Not sure if that's the right command but it works for me =)

One of these days I'm going to tag the system's vgs properly so I can use
the same lvm.conf across the nodes. I think it's something like
lvchange --addtag PDC-PIC-PL-CL1 vg_pdcpicpl01/lv_root 
etc...

By the way, to display how things are tagged, you have to do
lvs -o +tags
I wish it displayed them in lvdisplay, but it doesn't.

-- Andrew




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