[ClusterLabs] Antw: [EXT] Coming in Pacemaker 2.1.0: noncritical resources

2021-01-21 Thread Ulrich Windl
>>> Ken Gaillot schrieb am 22.01.2021 um 00:51 in Nachricht : > Hi all, > > A recurring request we've seen from Pacemaker users is a feature called > "non‑critical resources" in a proprietary product and "independent > subtrees" in the old rgmanager project. > > An example is a large database

[ClusterLabs] Antw: [EXT] Re: Q: utilization, stickiness and resource placement

2021-01-21 Thread Ulrich Windl
>>> Ken Gaillot schrieb am 21.01.2021 um 17:24 in Nachricht <28f8b077a30233efa41d04688eb21e82c8432ddd.ca...@redhat.com>: > On Thu, 2021‑01‑21 at 08:19 +0100, Ulrich Windl wrote: >> Hi! >> >> I have a question about utilization‑based resource placement >> (specifically:

[ClusterLabs] Coming in Pacemaker 2.1.0: noncritical resources

2021-01-21 Thread Ken Gaillot
Hi all, A recurring request we've seen from Pacemaker users is a feature called "non-critical resources" in a proprietary product and "independent subtrees" in the old rgmanager project. An example is a large database with an occasionally used reporting tool. The reporting tool is colocated or

Re: [ClusterLabs] Q: utilization, stickiness and resource placement

2021-01-21 Thread Ken Gaillot
On Thu, 2021-01-21 at 08:19 +0100, Ulrich Windl wrote: > Hi! > > I have a question about utilization-based resource placement > (specifically: placement-strategy=balanced): > Assume you have two resource capacities (say A and B) on each node, > and each resource also has a utilization parameter

Re: [ClusterLabs] Beginner Question about VirtualDomain

2021-01-21 Thread Valentin Vidić
On Wed, Aug 19, 2020 at 01:10:08AM -0400, Digimer wrote: > 3. We changed DRBD from v8.4 to 9.0, and this meant a few things had to > change. We will integrate support for short-throw DR hosts (async "third > node" in DRBD that is outside pacemaker). We run the resources to only > allow a single

Re: [ClusterLabs] Q: What is lvmlockd locking?

2021-01-21 Thread Gang He
Hi Ulrich, The problem is reproduced stably? could you help to share your pacemaker crm configure and OS/lvm2/resource-agents related version information? I feel the problem was probably caused by lvmlock resource agent script, which did not handle this corner case correctly. Thanks Gang

[ClusterLabs] Antw: [EXT] Re: Q: What is lvmlockd locking?

2021-01-21 Thread Ulrich Windl
>>> Gang He schrieb am 21.01.2021 um 11:30 in Nachricht <59b543ee-0824-6b91-d0af-48f66922b...@suse.com>: > Hi Ulrich, > > The problem is reproduced stably? could you help to share your > pacemaker crm configure and OS/lvm2/resource‑agents related version > information? OK, the problem

[ClusterLabs] Q: What is lvmlockd locking?

2021-01-21 Thread Ulrich Windl
Hi! I have a problem: For tests I had configured lvmlockd. Now that the tests have ended, no LVM is used for cluster resources any more, but lvmlockd is still configured. Unfortunately I ran into this problem: On OCFS2 mount was unmounted successfully, another holding the lockspace for