Re: [HTCondor-users] lvm metadata archiving

[Cole Bollig <cabollig@xxxxxxxx>]

Hi Michael,

There is no configuration that needs to be added to enable the use of --autobackup n as this is hard coded into a lot of the commands HTCondor uses to manage the ephemeral LVs. One thing to note is that the archiving still occurs when an administrator comes through and manually runs specific LVM commands. HTCondor can only help reduce overloading the host with archives due to it's rapid LV creation/deletion.

Perhaps I should implement a Startd Cron to periodically remove all but the last N most recent volume group archives (of the VG associated with/used by HTCondor).

Cheers,

Cole Bollig 

---

From: HTCondor-users <htcondor-users-bounces@xxxxxxxxxxx> on behalf of Michael Thomas <wart@xxxxxxxxxxx>
Sent: Friday, February 21, 2025 2:15 PM
To: condor-users@xxxxxxxxxxx <condor-users@xxxxxxxxxxx>
Subject: [HTCondor-users] lvm metadata archiving

 

The release notes for htcondor-24.4.0 reference a fix for HTCONDOR-2791:

"HTCondor should use the -A/--autobackup n option to prevent a new
backup being created and archived since HTCondor does lots of lvcreate
and lvremove."

But in my recently upgraded 24.4.0 cluster, this doesn't seem to be
having any effect.  New lvm archives are still being logged to
/etc/lvm/archive/

Is there some htcondor config setting I need to apply to disable this
metadata archiving, or is it supposed to be the default behavior?

--Mike
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