Add basic metrics to ImageCacheState and persist them, including
allocated_bytes, cached_bytes, dirty_bytes, free_bytes and hit/miss
info.
Leverage periodic_stats() timer to call update_image_cache_state.
In order to avoid outputting too much debug information, the original
statistics output log level is changed to 5.
Switch to json_spirit for encoding because encode_json encodes bool as
"true"/"false" string.
Remove rbd_persistent_cache_log_periodic_stats option because we need
to always update cache state.
[ idryomov: add cached_bytes and hits_partial; report misses and
miss_bytes instead of respective totals; naming ]
Fixes: https://tracker.ceph.com/issues/50614
Signed-off-by: Yin Congmin <congmin.yin@intel.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
The full name of PWL is persistent write log, and the full name of
RWL is replica write log. Change the title to make it consistent
with the name of the feature and better reflect its design.
Signed-off-by: Yin Congmin <congmin.yin@intel.com>
Adds documentation how to change default rbd object size. With the
previous option `--order` it was easy to guess the config name for the
default value, with the current option name `--object-size` thats hard
to guess.
Also extends the documentation for rbd_default_order to include
* how object-size is derived from the configured value
* allowed range of the value
In the first version of this commit I also added min and max for this
parameter (12/25, matching the object size range in `man 8
rbd`/Striping/object-size), but this made some tests fail, since some
seem to set values outside this range (and probably are fine since
included for some time already). To have this a doc-change only, I
removed the range.
Signed-off-by: Mara Sophie Grosch <littlefox@lf-net.org>
Hyper-V identifies passthrough VM disks by number instead of SCSI ID, although
the disk number can change across host reboots. This means that the VMs can end
up using incorrect disks after rebooting the host, which is an important
security concern. This issue also affects iSCSI and Fibre Channel disks.
We're going to document this Hyper-V limitation along with possible
workarounds.
Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
On top of "profile rbd" permissions, "profile rbd-mirror-peer" also
allows getting rbd/mirror and setting rbd/mirror/peer/* config keys.
This is what "rbd mirror pool peer bootstrap create" does.
Fixes: https://tracker.ceph.com/issues/50970
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This PR rewrites the sections
- Configure Ceph-CSI
- Configure Nomad
in the rbd-nomad.rst Chapter of the RBD
Guide.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
This PR improves the English in the "Create
a Pool" section of the "RBD & Nomad Integration"
chapter of the RBD Guide.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
This PR improves the English syntax and
spelling in the "Block Devices and Nomad"
section of the rbd-nomad.rst page.
This PR rewrites the top-level matter.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
less repeating this way.
also fix a typo of "rbd_qos_writ_bps_limit", it should be
"rbd_qos_write_bps_limit".
Signed-off-by: Kefu Chai <kchai@redhat.com>
Amend the example output and drop the word "transient" -- currently it
is the exact opposite, as the status is updated only when the cache is
opened and closed.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Document for rbd-persistent-read-only-cache show how to manage
ceph-immutable-object-cache daemon using systemd.
command example needs fixing.It should be
systemctl enable ceph-immutable-object-cache@ceph-immutable-object-cache.{unique id}
Fixes: https://tracker.ceph.com/issues/49849
Signed-off-by: Rachanaben Patel <racpatel@redhat.com>
Most of the Windows documentation is currently included in the
README.windows.rst file.
To make it more accessible, we're moving most of it to the
"doc/" folder, adding the following pages:
* Installing Ceph on Windows
* RBD on Windows
* Windows troubleshooting
We'll keep the build and manual install instructions in
README.windows.rst. Note that ceph-dokan already has a separate
doc page.
Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
