[ClusterLabs] Antw: Coming in Pacemaker 2.0.1 / 1.1.20: improved fencing history

[Klaus Wenninger]

On 12/17/2018 09:06 AM, Ulrich Windl wrote:
>>>> Ken Gaillot <kgaillot at redhat.com> schrieb am 11.12.2018 um 21:48 in
> Nachricht
> <33316cc0570a12255c7de7dd387caee9c5058e37.camel at redhat.com>:
>> Hi all,
>>
>> I expect to have the first release candidate for Pacemaker 2.0.1
>> available soon! It will mostly be a bug fix release, but one
>> interesting new feature is convenient access to fencing history.
>>
>> Pacemaker has long had the stonith_admin ‑‑history option to show a
>> history of past fencing actions that the cluster has carried out.
>> However, this list included only events since the node it was run on
>> had joined the cluster, and it just wasn't very convenient.
>>
>> In the upcoming release, the cluster keeps the fence history
>> synchronized across all nodes, so you get the same answer no matter
>> which node you query.
> So I guess it's in the CIB then. Right?

Nope. Record-taking of fenced is unchanged in principle - in memory
recording with distribution of actions taking place over the cluster.
Only thing added is syncing when nodes are joining and a
possibility to cleanup.

Klaus
>
>> More importantly, crm_mon will now show fencing failures and pending
>> fencing actions by default. This gives a much greater visibility into
>> past and current issues in a convenient way. You can control the level
>> of detail (or whether it shows up at all) via command‑line options.
>>
>> Along with that, there is a new stonith_admin ‑‑cleanup option to erase
>> the fence history, once you no longer want to see it in the crm_mon
>> status display.
>> ‑‑ 
>> Ken Gaillot <kgaillot at redhat.com>
>>
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