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06c94de584
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>
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| .. | ||
| alternate-pool.yaml | ||
| asok_dump_tree.yaml | ||
| auto-repair.yaml | ||
| backtrace.yaml | ||
| cap-flush.yaml | ||
| cephfs_scrub_tests.yaml | ||
| cfuse_workunit_quota.yaml | ||
| client-limits.yaml | ||
| client-readahad.yaml | ||
| client-recovery.yaml | ||
| config-commands.yaml | ||
| damage.yaml | ||
| data-scan.yaml | ||
| forward-scrub.yaml | ||
| fragment.yaml | ||
| journal-repair.yaml | ||
| libcephfs_java.yaml | ||
| libcephfs_python.yaml | ||
| mds_creation_retry.yaml | ||
| mds-flush.yaml | ||
| mds-full.yaml | ||
| pool-perm.yaml | ||
| quota.yaml | ||
| sessionmap.yaml | ||
| strays.yaml | ||
| test_journal_migration.yaml | ||
| volume-client.yaml | ||