Update: I expanded all rocksDB devices, but the warnings still appear:
BLUEFS_SPILLOVER BlueFS spillover detected on 10 OSD(s)
osd.0 spilled over 2.5 GiB metadata from 'db' device (2.4 GiB
used of 30 GiB) to slow device
osd.19 spilled over 66 MiB metadata from 'db' device (818 MiB
used of 15 GiB) to slow device
osd.25 spilled over 2.2 GiB metadata from 'db' device (2.6 GiB
used of 30 GiB) to slow device
osd.26 spilled over 1.6 GiB metadata from 'db' device (1.9 GiB
used of 30 GiB) to slow device
osd.27 spilled over 2.6 GiB metadata from 'db' device (2.5 GiB
used of 30 GiB) to slow device
osd.28 spilled over 2.4 GiB metadata from 'db' device (1.3 GiB
used of 30 GiB) to slow device
osd.29 spilled over 2.9 GiB metadata from 'db' device (1.7 GiB
used of 30 GiB) to slow device
osd.31 spilled over 2.2 GiB metadata from 'db' device (2.7 GiB
used of 30 GiB) to slow device
osd.32 spilled over 2.4 GiB metadata from 'db' device (1.7 GiB
used of 30 GiB) to slow device
osd.33 spilled over 2.2 GiB metadata from 'db' device (2.0 GiB
used of 30 GiB) to slow device
OSD.19 can be ignored as it's currently not in use, but the other
devices have been expanded from 20 to 30 GB (following the
explanations about the compaction levels).
According to the OSD logs these are the sizes we're dealing with:
Level Size
L0 31.84
L1 183.86
L2 923.67
L3 3.62
Sum 4.74
Int 0.00
Is there any sign that these OSDs would require even larger bdev
devices (300GB)? Which would not be possible with the currently used
SSDs, unfortunately.
Is there anything else I can do without recreating the OSDs?
Thanks,
Eugen
Zitat von Konstantin Shalygin <k0ste@xxxxxxxx>:
On 9/26/19 9:45 PM, Eugen Block wrote:
I'm following the discussion for a tracker issue [1] about
spillover warnings that affects our upgraded Nautilus cluster.
Just to clarify, would a resize of the rocksDB volume (and
expanding with 'ceph-bluestore-tool bluefs-bdev-expand...') resolve
that or do we have to recreate every OSD?
Yes, this works since Luminous 12.2.11
k
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