Zac Dover [Sun, 3 Mar 2024 10:28:00 +0000 (20:28 +1000)]
doc/rados: remove PGcalc from docs
Remove mention of the "PG calc" tool from the documentation. I have
removed all mention of this in one fell swoop to help posterity restore
mention of this tool if we decide we need to do so.
Zac Dover [Fri, 1 Mar 2024 12:11:14 +0000 (22:11 +1000)]
doc/install: add manual RADOSGW install procedure
Add a manual RADOSGW installation procedure to
doc/install/manual-deployment.rst. This procedure was developed by Janne
Johansson and reported to the ceph-users mailing list on 29 Jan 2024
here: https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/message/LB3YRIKAPOHXYCW7MKLVUJPYWYRQVARU/
Co-authored-by: Janne Johansson <icepic.dz@gmail.com> Co-authored-by: Anthony D'Atri <anthony.datri@gmail.com> Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 565bc9503838906995fa48f59debcd2843775b18)
Zac Dover [Thu, 29 Feb 2024 08:08:10 +0000 (18:08 +1000)]
doc/glossary: improve "MDS" entry
Improve the entry for "MDS" in doc/glossary.rst by linking to the
"ceph-mds" man page and mentioning the relationship between clients and
MDS (or MDSes).
Zac Dover [Mon, 26 Feb 2024 10:03:48 +0000 (20:03 +1000)]
doc/rados: add "change public network" procedure
Add a procedure to /doc/rados/operations/add-or-rm-mons.rst that
explains how to change the public_network in a Ceph cluster deployed
with cephadm. This procedure was developed by Eugen Block, and can be
seen in its original form here:
https://heiterbiswolkig.blogs.nde.ag/2024/02/22/cephadm-change-public-network/
Zac Dover [Mon, 19 Feb 2024 08:41:45 +0000 (18:41 +1000)]
doc/cephfs: edit add-remove-mds
Disambiguate a note in doc/cephfs/add-remove-mds.rst to help readers
distinguish between cases in which they might want to use an automated
tool such as cephadm to deploy MDSes and cases in which they might want
to manually deploy MDSes.
See: https://github.com/ceph/ceph/pull/45639
Tracker: https://tracker.ceph.com/issues/54551
Co-authored-by: Anthony D'Atri <anthony.datri@gmail.com> Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 39ad6264aa1c97b04974e04046033887325ed2b2)
Zac Dover [Fri, 9 Feb 2024 15:24:17 +0000 (01:24 +1000)]
doc/mgr: remove ceph-exporter (Quincy)
Remove mention of ceph-exporter in the Quincy branch. ceph-exporter was
in one release of Quincy, but was later removed because it was broken.
This PR is made in response to Eugen Block's having brought this matter
to my attention.
Zac Dover [Wed, 7 Feb 2024 13:18:35 +0000 (23:18 +1000)]
doc/radosgw: add confval directives
Add confval directives to the documentation of "quota cache" options.
This addresses a request made by Antony D'Atri in https://github.com/ceph/ceph/pull/55075/files#r1444006246.
Zac Dover [Sun, 4 Feb 2024 15:36:10 +0000 (01:36 +1000)]
doc/rados: update PG guidance
Update the "Creating a Pool" section of doc/rados/operations/pools.rst
so that the documentation no longer insists that the user change the
values of "osd_pool_default_pg_num" and "osd_pool_default_pgp_num".
See also: https://github.com/ceph/ceph/pull/55419
Tracker: https://tracker.ceph.com/issues/64259
Co-authored-by: Anthony D'Atri <anthony.datri@gmail.com> Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 5ad241442d2c141ba508faba61f39d70f3f09679)
Zac Dover [Fri, 2 Feb 2024 01:53:45 +0000 (11:53 +1000)]
doc/rados: update config for autoscaler
Update doc/rados/configuration/pool-pg-config-ref.rst to account for the
behavior of autoscaler.
Previously, this file was last meaningfully altered in 2013, prior to
the invention of autoscaler. A recent confusion was brought to my
attention on the Ceph Slack whereby a user attempted to alter the
default values of a Quincy cluster, as suggested in this documentation.
That alteration caused Ceph to throw the error "Error ERANGE: 'pgp_num'
must be greater than 0 and lower or equal than 'pg_num', which in this
case is one" and a related "rgw_init_ioctx ERROR" reading in part
"Numerical result out of range". The user removed the
"osd_pool_default_pgp_num" configuration line from ceph.conf and the
cluster worked as expected. I presume that this is because the removal
of this configuration line allowed autoscaler to work as intended.
Fixes: https://tracker.ceph.com/issues/64259 Co-authored-by: David Orman <ormandj@corenode.com> Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 4dc12092be584da44baca14e31ca33231164235f)
Ramana Raja [Tue, 23 Jan 2024 21:07:04 +0000 (16:07 -0500)]
rbd-nbd: log errors during netlink_resize() using derr
When using rbd CLI to map the images to NBD devices via netlink,
any errors that arose during image resizing in netlink_resize()
were not logged. Switching the error logging from using cerr to
derr helps log the errors from netlink_resize().
Ramana Raja [Mon, 22 Jan 2024 22:06:58 +0000 (17:06 -0500)]
rbd_nbd: fix resize of images mapped using netlink
Include device identifier or cookie in the message sent to the kernel
to resize images mapped to NBD devices using netlink. Otherwise,
netlink_resize() fails and the size of the device isn't updated.
Ilya Dryomov [Sat, 6 Jan 2024 16:08:04 +0000 (17:08 +0100)]
librbd: try to preserve object map for diff-iterate in fast-diff mode
As an optimization, try to ensure that the object map for the end
version is preloaded through the acquisition of exclusive lock and
as a consequence remains around until exclusive lock is released.
If it's not around, DiffRequest would (re)load it on each call.
Ilya Dryomov [Sat, 6 Jan 2024 16:05:39 +0000 (17:05 +0100)]
librbd/object_map: potentially use in-memory object map in DiffRequest
If the object map for the end version is around (already loaded in
memory, either due to the end version being a snapshot or due to
exclusive lock being held), use it to run diff-iterate against the
beginning of time. Since it's the only object map needed in that
case, such calls would be satisfied locally.
Ilya Dryomov [Fri, 5 Jan 2024 12:15:54 +0000 (13:15 +0100)]
librbd/object_map: decouple object map processing in DiffRequest
In preparation for potentially using in-memory object map, decouple
object map processing from loading object maps and place the logic in
prepare_for_object_map() and process_object_map().
Ilya Dryomov [Fri, 5 Jan 2024 11:23:24 +0000 (12:23 +0100)]
common/bit_vector: fix iterator vs reference constness confusion
T (ConstIterator or Iterator) is confused with const T here:
IteratorImpl dereference operator is wrongly overloaded on const
and returns Reference instead of ConstReference for ConstIterator.
This then fails inside bufferlist bowels because Reference is
incompatible with bufferlist::const_iterator.
Ilya Dryomov [Thu, 4 Jan 2024 10:39:20 +0000 (11:39 +0100)]
librbd/object_map: don't resize object map in handle_load_object_map()
Currently it's done in two cases:
- if the loaded object map is larger than expected based on byte size,
it's truncated to expected number of objects
- in case of deep-copy, if the loaded object map is smaller than diff
state, it's expanded to get "track the largest of all versions in the
set" semantics
Both of these cases can be easily dealt with without modifying the
object map. Being able to process a const object map is needed for
working on in-memory object map which is external to DiffRequest.
It's totally broken: instead of returning the current position and
moving to the next position, it returns the next position and doesn't
move anywhere. Luckily it hasn't been used until now.
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