Re: values of "ceph daemon osd.x perf dump objecters " are zero

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Objecter is the client side, but you're dumping stats on the osd.  The 
only time it is used as a client there is with cache tiering.

sage

On Wed, 28 Oct 2015, Libin Wu wrote:

> Hi, all
> 
> As my understand, command "ceph daemon osd.x perf dump objecters" should
> output the perf data of osdc(librados). But when i use this command,
> why all those values are zero expcept map_epoch and map_inc. Follow is
> the result(It has fio test with rbd ioengine on the cluster):
> 
> 
> $ sudo ceph daemon osd.10 perf dump objecter
> 
> {
> 
>     "objecter": {
> 
>         "op_active": 0,
> 
>         "op_laggy": 0,
> 
>         "op_send": 0,
> 
>         "op_send_bytes": 0,
> 
>         "op_resend": 0,
> 
>         "op_ack": 0,
> 
>         "op_commit": 0,
> 
>         "op": 0,
> 
>         "op_r": 0,
> 
>         "op_w": 0,
> 
>         "op_rmw": 0,
> 
>         "op_pg": 0,
> 
>         "osdop_stat": 0,
> 
>         "osdop_create": 0,
> 
>         "osdop_read": 0,
> 
>         "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": 0,
> 
>         "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": 0,
> 
>         "osdop_watch": 0,
> 
>         "osdop_notify": 0,
> 
>         "osdop_src_cmpxattr": 0,
> 
>         "osdop_pgls": 0,
> 
>         "osdop_pgls_filter": 0,
> 
>         "osdop_other": 0,
> 
>         "linger_active": 0,
> 
>         "linger_send": 0,
> 
>         "linger_resend": 0,
> 
>         "linger_ping": 0,
> 
>         "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": 2180,
> 
>         "map_full": 0,
> 
>         "map_inc": 83,
> 
>         "osd_sessions": 0,
> 
>         "osd_session_open": 0,
> 
>         "osd_session_close": 0,
> 
>         "osd_laggy": 0
> 
>     }
> 
> }
> 
> Anyone could tell why?
> 
> Thanks!
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