Re: cannot run cluster service

"Alfred Gumbs" <gumbs.alfred@xxxxxxx> · Thu, 11 Oct 2012 12:49:25 -0500

I'm not certain of your complete 
configuration.  However looking at the entry that you placed in the 
volume_list.  It looks like you listed the VG that is part of your 
cluster's resource group.  However, the volume_lists should actually list 
all the volume groups that are not part of the cluster.  

The VG's in the volume_list are actually the ones 
that the system needs to bring up.  The volume group that are part of the 
cluster will be brought up by rgmanager, so they should not  be in 
volumes_list.  The reason for the system panic is because the required 
volume groups were not listed in volume_list.  So the kernel could not 
varyon the system VG.

If I have mistakenly interprettted what you've done 
I'm sorry.  

  ----- Original Message ----- 
  From: 
  Shanti 
  Pahari 
  To: 'Andrew Denton' ; 'linux 
  clustering' 
  Sent: Wednesday, October 10, 2012 9:54 
  PM
  Subject: Re:  cannot run 
  cluster service

  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@xxxxxxxxxxxx] 
Sent: 
  Wednesday, 10 October, 2012 11:27 PM
To: linux 
  clustering
Cc: Shanti Pahari
Subject: Re:  
  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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