initial code repo

This patch creates initial code repo.

For ceph, luminous stable release will be used for base code,
and next changes and optimization for ceph will be added to it.

For opensds, currently any changes can be upstreamed into original
opensds repo (https://github.com/opensds/opensds), and so stor4nfv
will directly clone opensds code to deploy stor4nfv environment.
And the scripts for deployment based on ceph and opensds will be
put into 'ci' directory.

Change-Id: I46a32218884c75dda2936337604ff03c554648e4
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/src/ceph/PendingReleaseNotes b/src/ceph/PendingReleaseNotes
new file mode 100644
index 0000000..b46d1dc
--- /dev/null
+++ b/src/ceph/PendingReleaseNotes
@@ -0,0 +1,40 @@
+>= 12.1.2
+---------
+* When running 'df' on a CephFS filesystem comprising exactly one data pool,
+  the result now reflects the file storage space used and available in that
+  data pool (fuse client only).
+* Added new commands "pg force-recovery" and "pg-force-backfill". Use them
+  to boost recovery or backfill priority of specified pgs, so they're
+  recovered/backfilled before any other. Note that these commands don't
+  interrupt ongoing recovery/backfill, but merely queue specified pgs
+  before others so they're recovered/backfilled as soon as possible.
+  New commands "pg cancel-force-recovery" and "pg cancel-force-backfill"
+  restore default recovery/backfill priority of previously forced pgs.
+
+
+12.2.1
+------
+
+* Clusters will need to upgrade to 12.2.1 before upgrading to any
+  Mimic 13.y.z version (either a development release or an eventual
+  stable Mimic release).
+
+- *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.
+
+* The maximum number of PGs per OSD before the monitor issues a
+  warning has been reduced from 300 to 200 PGs.  200 is still twice
+  the generally recommended target of 100 PGs per OSD.  This limit can
+  be adjusted via the ``mon_max_pg_per_osd`` option on the
+  monitors.  The older ``mon_pg_warn_max_per_osd`` option has been removed.
+
+* Creating pools or adjusting pg_num will now fail if the change would
+  make the number of PGs per OSD exceed the configured
+  ``mon_max_pg_per_osd`` limit.  The option can be adjusted if it
+  is really necessary to create a pool with more PGs.