# v0.22

10/15/2010

stable clustered mds

* Feature #82: mon: osd failure smarts
* Feature #97: qa: better snap tests
* Cleanup #124: msgr: change protocol handshake to exchange in_seq
* Feature #138: Try out tcmalloc
* Feature #185: mds: set file layout policy on directory hierarchy
* Feature #195: monitor naming and removal support
* Bug #247: osd: allow separate interface for internal cluster traffic
* Bug #262: osd: make sync work on ext4
* Feature #303: objecter: limit in-flight ops and/or bytes written
* Cleanup #324: standalone ceph-client-tools package
* Bug #326: OSD crash PG::IndexedLog::unindex
* Bug #346: back-off on clock drift errors
* Feature #352: unit tests to check snap parents
* Bug #355: snapshots fail to maintain data integrity
* Bug #372: 2-Monitor election fight
* Bug #399: mon: trim laggy standby mdss from map
* Bug #401: osd: avoid clone_obc, snapset_obc on replica pgs
* Bug #402: Old Connection refs can hang around
* Feature #403: mon: admin ability to blacklist, unblacklist
* Cleanup #410: please use standardized date format (or YYYY for the year)
* Feature #415: Support tcmalloc profiling natively
* Tasks #417: update wiki article on mon cluster expansion for v0.22 and monitor naming changes
* Bug #428: osd: recovery stalls on mismatched snapset and object
* Feature #463: tool to capture debug info
* Bug #481: cosd leaking messenger threads
* Bug #487: osd: fix hang during mkfs
* Bug #494: reentrant sigabort handler?