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doc: 12.2.0 major release announcements Reordered the RC releases sections back to their respective components, added a ceph-mon section, added links to documentation wherever possible, and a few forgotten RGW announcements. Also cleared up the PendingReleaseNotes upto this point Signed-off-by: Abhishek Lekshmanan <abhishek@suse.com>
2017-08-24 12:40:33 +00:00
>= 12.2.0
doc: 12.1.1 release notes add major changes Also cleanup PendingReleasenotes to an empty file so that only newer changes are tracked, adding the relevant section back to RC1 where relevant. Moving all the RC1 announcements back to RC2, when we go to 12.2.0 we'll collapse all of these back to the release announcments Signed-off-by: Abhishek Lekshmanan <alekshmanan@suse.com>
2017-08-02 15:41:13 +00:00
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mds: support limiting cache by memory This introduces two config parameters: mds_cache_memory_limit: Sets the soft maximum of the cache to the given byte count. (Like mds_cache_size, this doesn't actually limit the maximum size of the cache. It just dictates the steady-state size.) mds_cache_reservation: This replaces mds_health_cache_threshold everywhere except the Beacon heartbeat sent to the mons. The idea here is to specify a reservation of memory (5% by default) for operations and the MDS tries to always maintain that reservation. So, the MDS will recall caps from clients when it begins dipping into its reservation of memory. mds_cache_size still limits the cache by Inode count but is now by-default 0 (i.e. unlimited). The new preferred way of specifying cache limits is by memory size. The default is 1GB. Fixes: http://tracker.ceph.com/issues/20594 Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1464976 Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
2017-09-11 22:21:52 +00:00
- *CephFS*:
* Limiting MDS cache via a memory limit is now supported using the new
mds_cache_memory_limit config option (1GB by default). A cache reservation
can also be specified using mds_cache_reservation as a percentage of the
limit (5% by default). Limits by inode count are still supported using
mds_cache_size. Setting mds_cache_size to 0 (the default) disables the
inode limit.