These are done after reading config files/environment and before log files
are opened. Allow a name or id to be specified. In the case of --setuser,
also switch to that user's gid, unless --setgroup is also specified.
Signed-off-by: Sage Weil <sage@redhat.com>
Fix an incorrent number in the ordered list and some indention issue.
Make the ordered list to use '1' or 'a' for the first item, and '#' for
the remaining items.
Signed-off-by: Zhiqiang Wang <zhiqiang.wang@intel.com>
doc/rados/operations/add-or-rm-mons: simplify the steps to add a mon
Reviewed-by: Joao Eduardo Luis <joao@suse.de>
Reviewed-by: Sage Weil <sage@redhat.com>
Reviewed-by: Loic Dachary <ldachary@redhat.com>
According to the "quick ceph deploy" page, the default number of replicas in the Ceph configuration file is 3
Signed-off-by: Sasha Chuzhoy <sashac88@hotmail.com>
this change removes the step to "ceph mon add" before starting a new
monitor. because the existing leader will start an election at seeing
the MMonJoin message sent by the new joiner, after the quorum is
archieved, the monmap will be updated with the new monitor.
so, "ceph mon add" is not necessary to add a new monitor.
moreover, this command will be blocked until a new quorum is formed,
and the proposed monmap is accepted. but in case of adding a monitor
to a single monitor cluster, the leader will wait until at least two
of the monitors reply to it. apparently, this does not happen unless
the new monitor starts. so from the user's point of view, this
command hangs until timesout, if he/she does not start the mon.b
beforehand. but this is an expected behaviour.
so, to avoid this confusion and simplify the steps to add a new
monitor. we'd better simply remove this "ceph mon add" step.
Fixes: #12620
Signed-off-by: Kefu Chai <kchai@redhat.com>
This patch will provide support for size suffixes for
below given options:
--stripe-unit <size in B/K/M>
--io-size <size in B/K/M/G/T>
--io-total <size in B/K/M/G/T>
Signed-off-by: Vikhyat Umrao <vumrao@redhat.com>
"--keyring" has higher priority than "--keyfile".
"--keyfile" option is overridden by "--keyring"
if latter is also specified.
Signed-off-by: Vikhyat Umrao <vumrao@redhat.com>
--object-extents is a bit confusing - extent is generally something of
a varying length and here the meaning is "diff whole objects". Rename
it to --whole-object (the name of diff_iterate() parameter).
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Change du to take <image-spec> | <snap-spec> as an argument instead of
going through --image option. The new synopsis is
(du | disk-usage) [<image-spec> | <snap-spec>]
This is to make it look more like the rest of the commands: the only
other command that takes pool as an argument is ls and it can't really
serve as a prototype for du, because the latter has to work on images
and snapshots as well.
Examples:
# stats for pool rbd
$ rbd du
$ rbd -p rbd du
# stats for pool foo
$ rbd -p foo du
# stats for snapshot mysnap of image baz in pool rbd
$ rbd du baz@mysnap
# stats for image bar in pool foo
$ rbd du foo/bar
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Mark those as such in help and clarify what image-spec defaults to.
Related, all command args in our man page are enclosed into brackets.
I suppose the reason is that they are optional in the sense that you
can have commands like
$ rbd clone --pool a --image b --snap -c --dest-pool d --dest e
with no args. Given that we are trying to push people towards
$ rbd clone a/b@c d/e
undo that so that real optional arguments can be marked optional.
While at it, add synopsis for each command and use backticks for
denoting commands more consistently.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This patch changes image-name instances to image-spec and snap-name
instances to snap-spec to try to clarify usage for some commands and
disambiguate the term {image,snap}-name, which has been used to denote
both simple names and compound names (specs).
<image-spec> is [<pool-name>]/<image-name>
<snap-spec> is [<pool-name>]/<image-name>@<snap-name>
This patch also removes duplicate checks for image-name and snap-name.
Signed-off-by: Vikhyat Umrao <vumrao@redhat.com>
[idryomov@gmail.com: some commands take either image-spec or snap-spec,
other fixes, formatting, changelog]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
These are deliberately fairly sparse, because:
* These tools are for experts
* These tools may well be wrapped in a higher
level recovery tool that orchestrates parallel
workers at some stage.
Signed-off-by: John Spray <john.spray@redhat.com>
I put in doc/rados/api/python.rst line numbers on every code samples in
order to make them look all the same.
Fixes: #12174
Signed off: Pierre Chaumont pierre.chaumont31@gmail.com
From context it is obvious that this section is about upgrading from Giant, not
Firefly, so change the version number to match Giant.
Signed-off-by: Nathan Cutler <ncutler@suse.com>
Fixes: #10759
the new --striper option allows to use the striping API provided by libradosstriper.
Signed-off-by: Sebastien Ponce <sebastien.ponce@cern.ch>
Wip writeback throttling for cache tiering
This patch is to do write back throttling for cache tiering, which is similar to what the Linux kernel does for page cache write back. A paramter 'cache_target_dirty_high_ratio' (default 0.6) is introduced as the high speed flushing threshold, while leave the 'cache_target_dirty_ratio' (default 0.4) to represent the low speed threshold. The flush speed is controlled by limiting the parallelism of flushing. The maximum parallelism under low speed is half of the parallelism under high speed. If there is at least one PG such that the dirty ratio beyond the high threshold, full speed mode is entered; If there is no PG such that dirty ratio beyond the low threshold, idle mode is entered; In other cases, slow speed mode is entered.
Signed-off-by: Mingxin Liu <mingxinliu@ubuntukylin.com>
Reviewed-by: Li Wang <liwang@ubuntukylin.com>
Suggested-by: Nick Fisk <nick@fisk.me.uk>
Tested-by: Kefu Chai <kchai@redhat.com>
