Hi Jack,
could you please try the following - stop one of already converted OSDs
and do a quick-fix/fsck/repair against it using ceph_bluestore_tool:
ceph-bluestore-tool --path <path to osd> --command quick-fix|fsck|repair
Does it cause similar memory usage?
You can stop experimenting if quick-fix reproduces the issue.
Also could you please describe your cluster and its usage a bit: what's
the usage: rgw/rbd/cephfs? If possible - please share 'ceph df detail'
output, do you have standalone DB volume at SSD/NVMe?
Thanks,
Igor
On 4/1/2020 6:28 PM, Jack wrote:
Hi,
As the upgrade documentation tells:
Note that the first time each OSD starts, it will do a format
conversion to improve the accounting for “omap” data. This may
take a few minutes to as much as a few hours (for an HDD with lots
of omap data). You can disable this automatic conversion with:
What the documentation does not say is that this process takes a lot of
memory
I am upgrading a rusty cluster from Nautilus, you can check out the ram
consumption as attachment
First, we have a 3TB osd conversion: it tooks ~15min, and 19GB of memory
Then, we have a larger 6TB osd conversion: it tooks more than 2 hours,
and 35GB of memory
Finally, you have the largest 10TB osd: only 1H15, but 52GB of memory
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