Re: Frequent calling monitor election

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Hi Stefan,

thanks for that hint. We use xfs on a dedicated RAID array for the MON stores. I'm not sure if I have seen elections caused by trimming, I will keep an eye on it.

Best regards,
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14

From: Stefan Kooman <stefan@xxxxxx>
Sent: 10 February 2023 10:03:04
To: Frank Schilder; ceph-users@xxxxxxx
Subject: Re:  Frequent calling monitor election

On 2/9/23 16:55, Frank Schilder wrote:

> We moved a switch from one rack to another and after the switch came beck up, the monitors frequently bitch about who is the alpha. How do I get them to focus more on their daily duties again?

Just checking here, do you use xfs as monitor database filesystem? We
encountered monitor elections when monthly trim (discard unused blocks)
would run. Disabling the trims solved the issue for us. If you have
"discard" option enabled this might hurt you more often ...

Gr. Stefan
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