Re: [ClusterLabs] DRBD split-brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Andrei Borzenkov
On 20.10.2021 17:54, Ian Diddams wrote: > > > On Wednesday, 20 October 2021, 11:15:48 BST, Andrei Borzenkov > wrote: > > >> You cannot resolve split brain without fencing. This is as simple as >> that. Your pacemaker configuration (from another mail) shows > >> pcs -f clust_cfg prop

Re: [ClusterLabs] DRBD split-brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Ian Diddams via Users
On Wednesday, 20 October 2021, 11:15:48 BST, Andrei Borzenkov wrote: >You cannot resolve split brain without fencing. This is as simple as >that. Your pacemaker configuration (from another mail) shows > pcs -f clust_cfg property set stonith-enabled=false > pcs -f clust_cfg property

Re: [ClusterLabs] Antw: [EXT] DRBD split‑brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Klaus Wenninger
On Wed, Oct 20, 2021 at 12:06 PM Ian Diddams via Users < users@clusterlabs.org> wrote: > FWIW here is the basis for my implementation being the "best" and easily > followed drbd/clustering guide/explanantiojn I could find when I searched > > Lisenet.com :: Linux | Security | Networking | Admin Blo

Re: [ClusterLabs] Antw: [EXT] Coming in Pacemaker 2.1.2: better display of internal failures

2021-10-20 Thread Ken Gaillot
On Wed, 2021-10-20 at 09:35 +0200, Ulrich Windl wrote: > > > > Ken Gaillot schrieb am 19.10.2021 um > > > > 19:16 in > Nachricht > : > > Hi all, > > > > I hope to get the first release candidate for Pacemaker 2.1.2 out > > in a > > couple of weeks. > > > > One improvement will be in status displ

Re: [ClusterLabs] DRBD split-brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Andrei Borzenkov
On Wed, Oct 20, 2021 at 11:54 AM Ian Diddams via Users wrote: > > So - system logs recently show this > > ESTRELA > Oct 18th > Oct 18 04:04:28 wp-vldyn-estrela kernel: [584651.491139] drbd mysql01/0 > drbd0: Split-Brain detected, 1 primaries, automatically solved. Sync from > peer node > Oct 18

Re: [ClusterLabs] Antw: [EXT] DRBD split‑brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Ian Diddams via Users
FWIW here is the basis for my implementation being the "best" and easily followed drbd/clustering guide/explanantiojn I could find when I searched Lisenet.com :: Linux | Security | Networking | Admin Blog cheers ian ___ Manage your subscription: https:

Re: [ClusterLabs] Antw: [EXT] DRBD split‑brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Ian Diddams via Users
>>So you drive without safety-belt and airbag (read: fencing)? possibly?  probably? As I said Im flying blind with this all - I was asked to try and implement it, Ive tried the best I can to implement it but for all I know the how-tos and advice I found have nmissed what may be needed. I

[ClusterLabs] Antw: [EXT] DRBD split‑brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Ulrich Windl
>>> Ian Diddams via Users schrieb am 20.10.2021 um >>> 10:54 in Nachricht <527856924.6994967.1634720079...@mail.yahoo.com>: > I've been testing an implementation of a HA mysql cluster for a few months > now. I came to this project with no preior knoweldge of what was > copncerned/needed and hav

[ClusterLabs] DRBD split-brain investigations, automatic fixes and manual intervention...

2021-10-20 Thread Ian Diddams via Users
I've been testing an implementation of a HA mysql cluster for a few months now. I came to this project with no preior knoweldge of what was copncerned/needed and have learned orgainscally via various online how-tos and web sites which many cases wrere slightly out-of-date to missing large chunks

[ClusterLabs] Antw: [EXT] Re: Coming in Pacemaker 2.1.2: better display of internal failures

2021-10-20 Thread Ulrich Windl
>>> "Walker, Chris" schrieb am 19.10.2021 um 20:11 in Nachricht > That looks great … is that a string that an RA can set on failure? I’d love > to be able to communicate RA‑specific failure reasons back to crm_mon > consumers… What about: ocf_exit_reason "$0 $1 not implemented" Regards, Ulr

[ClusterLabs] Antw: [EXT] Coming in Pacemaker 2.1.2: better display of internal failures

2021-10-20 Thread Ulrich Windl
>>> Ken Gaillot schrieb am 19.10.2021 um 19:16 in Nachricht : > Hi all, > > I hope to get the first release candidate for Pacemaker 2.1.2 out in a > couple of weeks. > > One improvement will be in status displays (crm_mon, and the > crm_resource ‑‑force‑* options) for failed actions. > > OCF re