Hi,
After jewel released fs product ready version, I upgrade the old
hammer cluster, but iops droped a lot
I made a test, with 3 nodes, each one have 8c 16G 1osd, the osd
device got 15000 iops
I found ceph-fuse client has better performance on hammer than jewel.
fio randwrite 4K
| | jewel server | hammer server |
|jewel client | 480+ iops | no test |
|hammer client | 6000+ iops | 6000+ iops |
ceph-fuse(jewel) mount with jewel server got pity iops, is there
any special options need to set?
If I continue use ceph-fuse(hammer) with jewel server, any problems
will cause?
thanks
my ceph.conf below:
[global]
fsid = xxxxxxx
mon_initial_members = xxx, xxx, xxx
mon_host = 10.0.0.1,10.0.0.2,10.0.0.3
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx
filestore_xattr_use_omap = true
osd_pool_default_size = 2
osd_pool_default_min_size = 1
mon_data_avail_warn = 15
mon_data_avail_crit = 5
mon_clock_drift_allowed = 0.6
[osd]
osd_disk_threads = 8
osd_op_threads = 8
journal_block_align = true
journal_dio = true
journal_aio = true
journal_force_aio = true
filestore_journal_writeahead = true
filestore_max_sync_interval = 15
filestore_min_sync_interval = 10
filestore_queue_max_ops = 25000
filestore_queue_committing_max_ops = 5000
filestore_op_threads = 32
osd_journal_size = 20000
osd_map_cache_size = 1024
osd_max_write_size = 512
osd_scrub_load_threshold = 1
osd_heartbeat_grace = 30
[mds]
mds_session_timeout = 120
mds_session_autoclose = 600
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