I can add another 2 positive datapoints for the balancer, my personal and work 
clusters are both happily balancing.

Good luck :)
-Alex

On 11/1/21, 3:05 PM, "Josh Baergen" <jbaer...@digitalocean.com> wrote:

    Well, those who have negative reviews are often the most vocal. :)
    We've had few, if any, problems with the balancer in our own use of
    it.

    Josh

    On Mon, Nov 1, 2021 at 12:58 PM Szabo, Istvan (Agoda)
    <istvan.sz...@agoda.com> wrote:
    >
    > Yeah, just follow the autoscaler at the moment, it suggested 128, might 
enable later the balancer, just scare a bit due to negative feedbacks about it.
    >
    > Istvan Szabo
    > Senior Infrastructure Engineer
    > ---------------------------------------------------
    > Agoda Services Co., Ltd.
    > e: istvan.sz...@agoda.com
    > ---------------------------------------------------
    >
    > On 2021. Nov 1., at 19:29, Josh Baergen <jbaer...@digitalocean.com> wrote:
    >
    > Email received from the internet. If in doubt, don't click any link nor 
open any attachment !
    > ________________________________
    >
    > To expand on the comments below, "max avail" takes into account usage
    > imbalance between OSDs. There's a pretty significant imbalance in this
    > cluster and Ceph assumes that the imbalance will continue, and thus
    > indicates that there's not much room left in the pool. Rebalancing
    > that pool will make a big difference in terms of top-OSD fullness and
    > the "max avail" metric.
    >
    > Josh
    >
    > On Mon, Nov 1, 2021 at 12:25 PM Alexander Closs <acl...@csail.mit.edu> 
wrote:
    >
    >
    > Max available = free space actually usable now based on OSD usage, not 
including already-used space.
    >
    >
    > -Alex
    >
    > MIT CSAIL
    >
    >
    > On 11/1/21, 2:18 PM, "Szabo, Istvan (Agoda)" <istvan.sz...@agoda.com> 
wrote:
    >
    >
    >    It says max available: 115TB and current use is 104TB, what I don’t 
understand where the max available come from because on the pool no object and 
no size limit is set:
    >
    >
    >    quotas for pool 'sin.rgw.buckets.data':
    >
    >      max objects: N/A
    >
    >      max bytes  : N/A
    >
    >
    >    Istvan Szabo
    >
    >    Senior Infrastructure Engineer
    >
    >    ---------------------------------------------------
    >
    >    Agoda Services Co., Ltd.
    >
    >    e: istvan.sz...@agoda.com<mailto:istvan.sz...@agoda.com>
    >
    >    ---------------------------------------------------
    >
    >
    >    On 2021. Nov 1., at 18:48, Etienne Menguy <etienne.men...@croit.io> 
wrote:
    >
    >
    >    sin.rgw.buckets.data    24  128  104 TiB  104 TiB      0 B    1.30G  
156 TiB  156 TiB      0 B  47.51    115 TiB  N/A            N/A           1.30G 
        0 B          0 B
    >
    >    _______________________________________________
    >
    >    ceph-users mailing list -- ceph-users@ceph.io
    >
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    >
    >
    >
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    >
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