ess, so I would love
for a developer to chime in to confirm whether or not that's the case.
Bryan
From: Dan van der Ster
Date: Tuesday, August 8, 2017 at 2:06 AM
To: Bryan Stillwell
Cc: Laszlo Budai , ceph-users
Subject: Re: [ceph-users] expanding cluster with minimal impact
Hi Bryan,
How
aszlo Budai
> Cc: ceph-users
> Subject: Re: [ceph-users] expanding cluster with minimal impact
>
> Hi Laszlo,
>
> The script defaults are what we used to do a large intervention (the
> default delta weight is 0.01). For our clusters going any faster
> becomes disruptive, but this rea
Hi Dan,
Thank you for your answer. Yes, I understood, that I need to have the initial
crush weight 0. That's how I tested when manually adding OSDs in my test
cluster. I see that with the settings mentioned by you adding OSDs using the
ceph-disk tool will also have the crush weight 0, so I cou
reduce the extra data movement we were seeing with smaller weight
increases. Maybe something to try out next time?
Bryan
From: ceph-users on behalf of Dan van der Ster
Date: Friday, August 4, 2017 at 1:59 AM
To: Laszlo Budai
Cc: ceph-users
Subject: Re: [ceph-users] expanding cluster with mini
eeing with smaller weight
increases. Maybe something to try out next time?
Bryan
From: ceph-users on behalf of Dan van der
Ster
Date: Friday, August 4, 2017 at 1:59 AM
To: Laszlo Budai
Cc: ceph-users
Subject: Re: [ceph-users] expanding cluster with minimal impact
Hi Laszlo,
The script default
ceph-users
Subject: Re: [ceph-users] expanding cluster with minimal impact
Hi Laszlo,
The script defaults are what we used to do a large intervention (the default
delta weight is 0.01). For our clusters going any faster becomes disruptive,
but this really depends on your cluster size and activity.
BT
Hi Laszlo,
The script defaults are what we used to do a large intervention (the
default delta weight is 0.01). For our clusters going any faster
becomes disruptive, but this really depends on your cluster size and
activity.
BTW, in case it wasn't clear, to use this script for adding capacity
you
Dear all,
I need to expand a ceph cluster with minimal impact. Reading previous threads
on this topic from the list I've found the ceph-gentle-reweight script
(https://github.com/cernceph/ceph-scripts/blob/master/tools/ceph-gentle-reweight)
created by Dan van der Ster (Thank you Dan for sharin
