[ceph-users] Removing MDS

Rhian Resnick rresnick at fau.edu
Tue Oct 30 18:44:32 PDT 2018

That is what I though. I am increasing debug to see where we are getting stuck. I am not sure if it is an issue deactivating or a rdlock issue.

Thanks if we discover more we will post a question with details.

Rhian Resnick

Associate Director Research Computing

Enterprise Systems

Office of Information Technology

Florida Atlantic University

777 Glades Road, CM22, Rm 173B

Boca Raton, FL 33431

Phone 561.297.2647

Fax 561.297.0222

 [image] <https://hpc.fau.edu/wp-content/uploads/2015/01/image.jpg>

From: Patrick Donnelly <pdonnell at redhat.com>
Sent: Tuesday, October 30, 2018 8:40 PM
To: Rhian Resnick
Cc: Ceph Users
Subject: Re: [ceph-users] Removing MDS

On Tue, Oct 30, 2018 at 4:05 PM Rhian Resnick <rresnick at fau.edu> wrote:
> We are running into issues deactivating mds ranks. Is there a way to safely forcibly remove a rank?

No, there's no "safe" way to force the issue. The rank needs to come
back, flush its journal, and then complete its deactivation. To get
more help, you need to describe your environment, version of Ceph in
use, relevant log snippets, etc.

Patrick Donnelly
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