Hi everyone, I have a problem。I want to see statistics of more than one image,
but show only one image
Here are the steps:
I create two images：[root@node173 ~]# rbd -p test lstest_10Gtest_20G
I use iscsi-tgtd to mount out this two images，and iscsi-tgtd config file file
like this:
include /etc/tgt/conf.d/*.conf<target iqn.2015-04.tdsstore.hg20.com:iscsi>
bs-type rbd driver iscsi <backing-store test/test_10G> lun 1
scsi_sn tds42702544 scsi_id
fc5ad8a1-d6e2-4795-b81b-7c1163efb78a </backing-store> <backing-store
test/test_20G> lun 2 scsi_sn tds42702577 scsi_id
fc5ad8a1-d6e2-4795-b81b-7c1163efb78x </backing-store></target>
When I restarted service of iscsi-tgtd,a file of rbd-9067.asok generated in
directory "/var/run/ceph"
Finally, I run "ceph daemon /var/run/ceph/rbd-9067.asok perf dump".But，It only
reported test_10G，test_20G reports are not generated.Here is the report of the
Executive "ceph daemon /var/run/ceph/rbd-9067.asok perf dump"[root@node173 ~]#
ceph daemon /var/run/ceph/rbd-9067.asok perf dump{ "librbd--test/test_10G@":
{ "rd": 0, "rd_bytes": 0, "rd_latency": {
"avgcount": 0, "sum": 0.000000000 }, "wr": 0,
"wr_bytes": 0, "wr_latency": { "avgcount": 0,
"sum": 0.000000000 }, "discard": 0, "discard_bytes": 0,
"discard_latency": { "avgcount": 0, "sum":
0.000000000 }, "flush": 0, "aio_rd": 0,
"aio_rd_bytes": 0, "aio_rd_latency": { "avgcount": 0,
"sum": 0.000000000 }, "aio_wr": 0, "aio_wr_bytes": 0,
"aio_wr_latency": { "avgcount": 0, "sum":
0.000000000 }, "aio_discard": 0, "aio_discard_bytes": 0,
"aio_discard_latency": { "avgcount": 0, "sum":
0.000000000 }, "aio_flush": 0, "aio_flush_latency": {
"avgcount": 0, "sum": 0.000000000 },
"snap_create": 0, "snap_remove": 0, "snap_rollback": 0,
"notify": 0, "resize": 0, "readahead": 0,
"readahead_bytes": 0 }, "objectcacher-librbd--test/test_10G@": {
"cache_ops_hit": 0, "cache_ops_miss": 0, "cache_bytes_hit": 0,
"cache_bytes_miss": 0, "data_read": 0, "data_written": 0,
"data_flushed": 0, "data_overwritten_while_flushing": 0,
"write_ops_blocked": 0, "write_bytes_blocked": 0,
"write_time_blocked": 0.000000000 }, "objecter": { "op_active": 0,
"op_laggy": 0, "op_send": 248236, "op_send_bytes": 0,
"op_resend": 0, "op_ack": 16, "op_commit": 248220, "op":
248236, "op_r": 16, "op_w": 248220, "op_rmw": 0,
"op_pg": 0, "osdop_stat": 1, "osdop_create": 0,
"osdop_read": 1, "osdop_write": 0, "osdop_writefull": 0,
"osdop_append": 0, "osdop_zero": 0, "osdop_truncate": 0,
"osdop_delete": 0, "osdop_mapext": 0, "osdop_sparse_read": 0,
"osdop_clonerange": 0, "osdop_getxattr": 12, "osdop_setxattr":
0, "osdop_cmpxattr": 0, "osdop_rmxattr": 0,
"osdop_resetxattrs": 0, "osdop_tmap_up": 0, "osdop_tmap_put": 0,
"osdop_tmap_get": 0, "osdop_call": 2, "osdop_watch":
248220, "osdop_notify": 0, "osdop_src_cmpxattr": 0,
"osdop_pgls": 0, "osdop_pgls_filter": 0, "osdop_other": 0,
"linger_active": 2, "linger_send": 2, "linger_resend": 0,
"linger_ping": 248218, "poolop_active": 0, "poolop_send": 0,
"poolop_resend": 0, "poolstat_active": 0, "poolstat_send": 0,
"poolstat_resend": 0, "statfs_active": 0, "statfs_send": 0,
"statfs_resend": 0, "command_active": 0, "command_send": 0,
"command_resend": 0, "map_epoch": 0, "map_full": 0,
"map_inc": 0, "osd_sessions": 1, "osd_session_open": 1,
"osd_session_close": 0, "osd_laggy": 1 },
"throttle-msgr_dispatch_throttler-radosclient": { "val": 0,
"max": 104857600, "get": 252632, "get_sum": 44620557,
"get_or_fail_fail": 0, "get_or_fail_success": 0, "take": 0,
"take_sum": 0, "put": 252632, "put_sum": 44620557,
"wait": { "avgcount": 0, "sum": 0.000000000 }
}, "throttle-objecter_bytes": { "val": 0, "max": 104857600,
"get": 18, "get_sum": 4206, "get_or_fail_fail": 0,
"get_or_fail_success": 18, "take": 0, "take_sum": 0,
"put": 13, "put_sum": 4206, "wait": { "avgcount": 0,
"sum": 0.000000000 } }, "throttle-objecter_ops": {
"val": 0, "max": 1024, "get": 18, "get_sum": 18,
"get_or_fail_fail": 0, "get_or_fail_success": 18, "take": 0,
"take_sum": 0, "put": 18, "put_sum": 18, "wait": {
"avgcount": 0, "sum": 0.000000000 } }}
There is a report only test_10G , the report of test_20G was not find。
how to view multiple image statistics with command “ceph daemon
/var/run/ceph/rbd-$pid.asok perf dump”
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