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 ls
test_10G
test_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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