Thanks : -) If we are seeing this rise unnaturally high (e.g >140K - which corresponds with slow access to CephFS) do you have any recommendations of where we should be looking - is this related to the messenger service and its dispatch/throttle bytes? -----Original Message----- From: John Spray [mailto:jspray@xxxxxxxxxx] Sent: 23 May 2017 13:51 To: James Wilkins <James.Wilkins@xxxxxxxxxxxxx> Cc: Users, Ceph <ceph-users@xxxxxxxxxxxxxx> Subject: Re: MDS Question On Tue, May 23, 2017 at 1:42 PM, James Wilkins <James.Wilkins@xxxxxxxxxxxxx> wrote: > Quick question on CephFS/MDS but I can’t find this documented > (apologies if it is) > > > > What does the q: represent in a ceph daemon <socket> perf dump mds > represent? mds]$ git grep "\"q\"" MDSRank.cc: mds_plb.add_u64(l_mds_dispatch_queue_len, "q", "Dispatch queue length"); That's a quirky bit of naming for sure! John > > > > [root@hp3-ceph-mds2 ~]# ceph daemon > /var/run/ceph/ceph-mds.hp3-ceph-mds2.ceph.hostingp3.local.asok perf > dump mds > > { > > "mds": { > > "request": 10843133, > > "reply": 10842472, > > "reply_latency": { > > "avgcount": 10842472, > > "sum": 2678925.337447889 > > }, > > "forward": 0, > > "dir_fetch": 412972, > > "dir_commit": 683903, > > "dir_split": 0, > > "dir_merge": 0, > > "inode_max": 7000000, > > "inodes": 7000209, > > "inodes_top": 808282, > > "inodes_bottom": 6191218, > > "inodes_pin_tail": 709, > > "inodes_pinned": 2055258, > > "inodes_expired": 2276343, > > "inodes_with_caps": 1905570, > > "caps": 2392113, > > "subtrees": 2, > > "traverse": 12551065, > > "traverse_hit": 10346763, > > "traverse_forward": 0, > > "traverse_discover": 0, > > "traverse_dir_fetch": 312666, > > "traverse_remote_ino": 0, > > "traverse_lock": 41125, > > "load_cent": 1090788840, > > "q": 4371, > > "exported": 0, > > "exported_inodes": 0, > > "imported": 0, > > "imported_inodes": 0 > > } > > } > > > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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