roles: - [mon.a, mgr.x, mds.a, osd.0, osd.1, osd.2, client.0, client.1] tasks: - install: - ceph: conf: global: osd max object name len: 460 osd max object namespace len: 64 debug client: 20 debug mds: 20 debug ms: 1 - exec: client.0: - ceph osd pool create data_cache 4 - ceph osd tier add cephfs_data data_cache - ceph osd tier cache-mode data_cache writeback - ceph osd tier set-overlay cephfs_data data_cache - ceph osd pool set data_cache hit_set_type bloom - ceph osd pool set data_cache hit_set_count 8 - ceph osd pool set data_cache hit_set_period 3600 - ceph osd pool set data_cache min_read_recency_for_promote 0 - ceph-fuse: - exec: client.0: - sudo chmod 777 $TESTDIR/mnt.0/ - dd if=/dev/urandom of=$TESTDIR/mnt.0/foo bs=1M count=5 - ls -al $TESTDIR/mnt.0/foo - truncate --size 0 $TESTDIR/mnt.0/foo - ls -al $TESTDIR/mnt.0/foo - dd if=/dev/urandom of=$TESTDIR/mnt.0/foo bs=1M count=5 - ls -al $TESTDIR/mnt.0/foo - cp $TESTDIR/mnt.0/foo /tmp/foo - sync - rados -p data_cache ls - - sleep 10 - rados -p data_cache ls - - rados -p data_cache cache-flush-evict-all - rados -p data_cache ls - - sleep 1 - exec: client.1: - hexdump -C /tmp/foo | head - hexdump -C $TESTDIR/mnt.1/foo | head - cmp $TESTDIR/mnt.1/foo /tmp/foo