Hi Swami

The limit is somewhat arbitrary, based on cluster sizes we had seen when 
we picked it.  In your case it should be perfectly safe to increase it.


On Wed, 6 Feb 2019, M Ranga Swami Reddy wrote:

> Hello -  Are the any limits for mon_data_size for cluster with 2PB
> (with 2000+ OSDs)?
> Currently it set as 15G. What is logic behind this? Can we increase
> when we get the mon_data_size_warn messages?
> I am getting the mon_data_size_warn message even though there a ample
> of free space on the disk (around 300G free disk)
> Earlier thread on the same discusion:
> https://www.spinics.net/lists/ceph-users/msg42456.html
> Thanks
> Swami
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