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
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>
Explain the significance of pgp num & how it differs from pg num.
Fixes: #10035
Reported-by: Loic Dachary <loic@dachary.org>
Signed-off-by: Abhishek Lekshmanan <abhishek.lekshmanan@ril.com>
Specified crush-ruleset-name is required to exist, implicit creation is
going to happen only if crush-ruleset-name wasn't specified on the
command line. While at it, pool-name is very much a required param.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Prior to this commit, the Network Configuration Reference guide and
Troubleshooting guide recommended opening a number of ports that were
unique to the number of daemons that we ran.
This doesn't really cover all use cases. Users can easily restart
daemons in ways that cause the daemons to bind to higher ports. This
leads to OSDs or MDSs binding to ports that are firewalled.
Update the Network Configuration Reference guide and Troubleshooting
guides to simply recommend that users open all the ports between 6800
and 7300 on their OSDs and MDSs.
http://tracker.ceph.com/issues/11688 Refs: #11688
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
ceph osd setmap command was disabled and subsequently removed 5 years
ago. See 9aadd41b20 ("mon: disable 'osd setmap'") and 6d292397aa
("mon: remove dead 'setmap' code").
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
* asphyxiate needs more toolings, see
https://github.com/ceph/asphyxiate/issues/1
* this commit basically reverts c96064
* use `autodoxygen` directive to doxygen referenced source files
* do not call `doxygen` explicitly in `build-doc`, `autodoxygen`
will take care of it.
Fixes: #6115Fixes: #6115
Signed-off-by: Kefu Chai <kchai@redhat.com>
Mention that "ceph tell osd.N bench" will not overwrite data in a live
OSD, but might temporarily affect OSD performance.
Signed-off-by: Florian Haas <florian@hastexo.com>
ceph-devel contains various header files/bindings for several
libraries, this patch creates *-devel packages for all the libraries
separately and provides the compatibility layer for the split.
http://tracker.ceph.com/issues/10884 Refs: #10884
Signed-off-by: Boris Ranto <branto@redhat.com>
Amended by Ken Dreyer <kdreyer@redhat.com> to add version numbers to the
Obsoletes, add Obsoletes to the libradosstriper1-devel and
libcephfs_jni1-devel subpackages, adjust the librados documentation, and
add the Redmine issue number to this commit log.
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
This was kind of easy to miss, and if users
just paste in the command as given then their
first few OSDs will work, and from their
4th OSD onwards things will get weird.
Signed-off-by: John Spray <john.spray@redhat.com>
* nodelete - pool can't be deleted
* nopgchange - pool's pg and pgp num can't be changed
* nosizechange - pool's size and min size can't be changed
This is intended to help some poor admin to avoid a very bad day.
Fixes: #9792 (but in a different way than it was proposed there)
Signed-off-by: Mykola Golub <mgolub@mirantis.com>
Add a new section to the PG troubleshooting section that covers the most
common problems reported when an erasure coded pool fails to properly
map PGs to enough OSDs.
http://tracker.ceph.com/issues/10350Fixes: #10350
Signed-off-by: Loic Dachary <ldachary@redhat.com>
undersized not valid: undersized not in inactive|unclean|stale
undersized not valid: undersized doesn't represent an int
Invalid command: unused arguments: ['undersized']
pg dump_stuck {inactive|unclean|stale [inactive|unclean|stale...]} {<int>} : show information about stuck pgs
Signed-off-by: xinxin shu <xinxin.shu@intel.com>
Remove the reference to "Ubuntu 12.10" since this is EOL.
Clarify that we only recommend Ubuntu LTS releases.
(Since this information has a tendancy to become stale, perhaps this
whole paragraph should be removed here and we should simply point at the
main OS Recommendations page.)
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
A short introduction to the first time user of an erasure coded pool.
It includes a reminder of how it relates to cache tiering and links to
define new profiles with an example.
There was examples in the developer documentation but the operator
expects to find such a guide in the rados operations chapter.
http://tracker.ceph.com/issues/9970Fixes: #9970
Signed-off-by: Loic Dachary <ldachary@redhat.com>
LRC now uses Jerasure as the default EC backend. But it is actually
possible to switch to other backend like Isa using the low level
configuration. This commits Adds documents on how to specify the EC
backend in each LRC layer:
Signed-off-by: Yuan Zhou <yuan.zhou@intel.com>
Add release note
New librados interface
New pg_nls_response_t over the wire protocol
Ignore internal namespace (.ceph_internal)
Enhance ObjListCtx to keep independent IoCtxImpl so nspace won't change out from under listing code
Add ListObject with private implementation ListObjectImpl to return from iterator
Add EINVAL error for old librados interface when LIBRADOS_ALL_NSPACES set
Add throw to old librados c++ interface when all_nspaces set
Fixes: #9031
Signed-off-by: David Zafman <dzafman@redhat.com>
* Update the ceph tell from ceph daemon tell id to the new
ceph tell deamon.id form
* Add usages examples for easier copy / paste
* Add MON to the list of daemons that can be profiled
* Document CEPH_HEAP_PROFILER_INIT=true
* Remove trailing empty lines
Signed-off-by: Loic Dachary <loic-201408@dachary.org>
