[root@c71 ~]# rbd ls --debug_objecter=20
2015-03-18 17:04:05.050596 7f84dc174700 10 client.?.objecter ms_handle_connect 0x957550
2015-03-18 17:04:05.050626 7f84dc174700 10 client.?.objecter resend_mon_ops
2015-03-18 17:04:05.052283 7f84e43aa880 10 client.7205.objecter _maybe_request_map subscribing (onetime) to next osd map
2015-03-18 17:04:05.053120 7f84dc174700 10 client.7205.objecter ms_dispatch 0x92fce0 osd_map(415..415 src has 1..415) v3
2015-03-18 17:04:05.053131 7f84dc174700  3 client.7205.objecter handle_osd_map got epochs [415,415] > 0
2015-03-18 17:04:05.053135 7f84dc174700  3 client.7205.objecter handle_osd_map decoding full epoch 415
2015-03-18 17:04:05.053267 7f84dc174700 20 client.7205.objecter dump_active .. 0 homeless
2015-03-18 17:04:05.053299 7f84dc174700 10 client.7205.objecter ms_dispatch 0x92fce0 osd_map(415..415 src has 1..415) v3
2015-03-18 17:04:05.053300 7f84dc174700  3 client.7205.objecter handle_osd_map ignoring epochs [415,415] <= 415
2015-03-18 17:04:05.053302 7f84dc174700 20 client.7205.objecter dump_active .. 0 homeless
2015-03-18 17:04:05.053388 7f84e43aa880 20 librbd: list 0x7fffac916d30
2015-03-18 17:04:05.053432 7f84e43aa880 10 client.7205.objecter _op_submit op 0x955b70
2015-03-18 17:04:05.053468 7f84e43aa880 10 client.7205.objecter _calc_target  pgid 2.30a98c1c acting [0,1,2]
2015-03-18 17:04:05.053515 7f84e43aa880 20 client.7205.objecter _get_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.053518 7f84e43aa880 20 client.7205.objecter  note: not requesting commit
2015-03-18 17:04:05.053519 7f84e43aa880 10 client.7205.objecter _op_submit oid rbd_directory @2 @2 [read 0~0] tid 0 osd.0
2015-03-18 17:04:05.053536 7f84e43aa880 20 client.7205.objecter get_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.053539 7f84e43aa880 15 client.7205.objecter _session_op_assign 0 1
2015-03-18 17:04:05.053540 7f84e43aa880 15 client.7205.objecter _send_op 1 to osd.0
2015-03-18 17:04:05.053555 7f84e43aa880 20 client.7205.objecter put_session s=0x9554a0 osd=0 3
2015-03-18 17:04:05.053557 7f84e43aa880  5 client.7205.objecter 1 unacked, 0 uncommitted
2015-03-18 17:04:05.054672 7f84dc174700 10 client.7205.objecter ms_handle_connect 0x952000
2015-03-18 17:04:05.055334 7f84dc174700 10 client.7205.objecter ms_dispatch 0x92fce0 osd_op_reply(1 rbd_directory [read 0~19] v0'0 uv5 ondisk = 0) v6
2015-03-18 17:04:05.055340 7f84dc174700 10 client.7205.objecter in handle_osd_op_reply
2015-03-18 17:04:05.055342 7f84dc174700 20 client.7205.objecter get_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.055344 7f84dc174700  7 client.7205.objecter handle_osd_op_reply 1 ondisk v 0'0 uv 5 in 2.30a98c1c attempt 0
2015-03-18 17:04:05.055346 7f84dc174700 10 client.7205.objecter  op 0 rval 0 len 19
2015-03-18 17:04:05.055348 7f84dc174700 15 client.7205.objecter handle_osd_op_reply ack
2015-03-18 17:04:05.055354 7f84dc174700 15 client.7205.objecter handle_osd_op_reply completed tid 1
2015-03-18 17:04:05.055358 7f84dc174700 15 client.7205.objecter finish_op 1
2015-03-18 17:04:05.055364 7f84dc174700 20 client.7205.objecter put_session s=0x9554a0 osd=0 3
2015-03-18 17:04:05.055365 7f84dc174700 15 client.7205.objecter _session_op_remove 0 1
2015-03-18 17:04:05.055367 7f84dc174700  5 client.7205.objecter 0 unacked, 0 uncommitted
2015-03-18 17:04:05.055373 7f84dc174700 20 client.7205.objecter put_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.055512 7f84e43aa880 10 client.7205.objecter _op_submit op 0x955b70
2015-03-18 17:04:05.055524 7f84e43aa880 10 client.7205.objecter _calc_target  pgid 2.30a98c1c acting [0,1,2]
2015-03-18 17:04:05.055527 7f84e43aa880 20 client.7205.objecter _get_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.055528 7f84e43aa880 20 client.7205.objecter  note: not requesting commit
2015-03-18 17:04:05.055529 7f84e43aa880 10 client.7205.objecter _op_submit oid rbd_directory @2 @2 [call rbd.dir_list] tid 0 osd.0
2015-03-18 17:04:05.055536 7f84e43aa880 20 client.7205.objecter get_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.055538 7f84e43aa880 15 client.7205.objecter _session_op_assign 0 2
2015-03-18 17:04:05.055539 7f84e43aa880 15 client.7205.objecter _send_op 2 to osd.0
2015-03-18 17:04:05.055551 7f84e43aa880 20 client.7205.objecter put_session s=0x9554a0 osd=0 3
2015-03-18 17:04:05.055553 7f84e43aa880  5 client.7205.objecter 1 unacked, 0 uncommitted
im1
im2
im3
2015-03-18 17:04:05.056345 7f84dc174700 10 client.7205.objecter ms_dispatch 0x92fce0 osd_op_reply(2 rbd_directory [call] v0'0 uv5 ondisk = 0) v6
2015-03-18 17:04:05.056348 7f84dc174700 10 client.7205.objecter in handle_osd_op_reply
2015-03-18 17:04:05.056349 7f84dc174700 20 client.7205.objecter get_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.056350 7f84dc174700  7 client.7205.objecter handle_osd_op_reply 2 ondisk v 0'0 uv 5 in 2.30a98c1c attempt 0
2015-03-18 17:04:05.056352 7f84dc174700 10 client.7205.objecter  op 0 rval 0 len 50
2015-03-18 17:04:05.056353 7f84dc174700 15 client.7205.objecter handle_osd_op_reply ack
2015-03-18 17:04:05.056354 7f84dc174700 15 client.7205.objecter handle_osd_op_reply completed tid 2
2015-03-18 17:04:05.056355 7f84dc174700 15 client.7205.objecter finish_op 2
2015-03-18 17:04:05.056357 7f84dc174700 20 client.7205.objecter put_session s=0x9554a0 osd=0 3
2015-03-18 17:04:05.056358 7f84dc174700 15 client.7205.objecter _session_op_remove 0 2
2015-03-18 17:04:05.056360 7f84dc174700  5 client.7205.objecter 0 unacked, 0 uncommitted
2015-03-18 17:04:05.056364 7f84dc174700 20 client.7205.objecter put_session s=0x9554a0 osd=0 2
2015-03-18 17:04:05.056608 7f84e43aa880 10 client.7205.objecter close_session for osd.0
2015-03-18 17:04:05.056645 7f84e43aa880 20 client.7205.objecter put_session s=0x9554a0 osd=0 1
2015-03-18 17:04:05.056657 7f84e43aa880 20 client.7205.objecter shutdown clearing up homeless session...
2015-03-18 17:04:05.056662 7f84e43aa880 10 client.7205.objecter  successfully canceled tick
[root@c71 ~]#