Thanks for this, Eugen. I think I'll stick to adding the option to the
config file, it seems like a safer way to do it.
/Z
On Tue, 17 Oct 2023, 15:21 Eugen Block, wrote:
> Hi,
>
> I managed to get the compression setting into the MONs by using the
> extra-entrypoint-arguments [1]:
>
> ceph01:~
Hi,
I managed to get the compression setting into the MONs by using the
extra-entrypoint-arguments [1]:
ceph01:~ # cat mon-specs.yaml
service_type: mon
placement:
hosts:
- ceph01
- ceph02
- ceph03
extra_entrypoint_args:
-
'--mon-rocksdb-options=write_buffer_size=33554432,compressi
Thanks for the suggestion, Josh!
That part is relatively simple: the container gets ceph.conf from the
host's filesystem, for example:
"HostConfig": {
"Binds": [
"/dev:/dev",
"/run/udev:/run/udev",
"/var/run/ceph/3f50555a-ae2a-11eb-a2fc-ffde44
> the resulting ceph.conf inside the monitor container doesn't have
> mon_rocksdb_options
I don't know where this particular ceph.conf copy comes from, but I
still suspect that this is where this particular option needs to be
set. The reason I think this is that rocksdb mount options are needed
_
Out of curiosity, I tried setting mon_rocksdb_options via ceph.conf. This
didn't work either: ceph.conf gets overridden at monitor start, the
resulting ceph.conf inside the monitor container doesn't have
mon_rocksdb_options, the monitor starts with no RocksDB compression.
I would appreciate it if
Thanks for your response, Josh. Our ceph.conf doesn't have anything but the
mon addresses, modern Ceph versions store their configuration in the
monitor configuration database.
This works rather well for various Ceph components, including the monitors.
RocksDB options are also applied to monitors
Apologies if you tried this already and I missed it - have you tried
configuring that setting in /etc/ceph/ceph.conf (or wherever your conf
file is) instead of via 'ceph config'? I wonder if mon settings like
this one won't actually apply the way you want because they're needed
before the mon has t
I also tried setting RocksDB compression options and deploying a new
monitor. The monitor started with no RocksDB compression again.
Ceph monitors seem to ignore mon_rocksdb_options set at runtime, at mon
start and at mon deploy. How can I enable RocksDB compression in Ceph
monitors?
Any input fr
