Re: CephFS mount delay

[Sage Weil <sage@inktank.com>]

What about this:

diff --git a/src/client/Client.cc b/src/client/Client.cc
index 3333966..003e3f8 100644
--- a/src/client/Client.cc
+++ b/src/client/Client.cc
@@ -294,6 +294,7 @@ int Client::init()
   monclient->set_want_keys(CEPH_ENTITY_TYPE_MDS | CEPH_ENTITY_TYPE_OSD);
   monclient->sub_want("mdsmap", 0, 0);
   monclient->sub_want("osdmap", 0, CEPH_SUBSCRIBE_ONETIME);
+  monclient->renew_subs();
 
   // logger
   PerfCountersBuilder plb(cct, "client", l_c_first, l_c_last);


If that doesn't do it, can you reproduce with 'debug client = 20' and 
'debug monc = 20'?

Thanks!
sage



On Thu, 30 Aug 2012, Noah Watkins wrote:

> Here ya go:
> 
> https://dl.dropbox.com/u/7899675/client.log
> https://dl.dropbox.com/u/7899675/mds.a.log
> https://dl.dropbox.com/u/7899675/mds.b.log
> https://dl.dropbox.com/u/7899675/mds.c.log
> 
> - Noah
> 
> On Thu, Aug 30, 2012 at 1:15 PM, Sage Weil <sage@inktank.com> wrote:
> > I see that Server::handle_client_session is calling mdlog->flush(), so
> > it's a bit odd.  Can you generate a log with 'debug ms = 1' on the client
> > (and maybe mds) side?
> >
> > s
> >
> > On Thu, 30 Aug 2012, Noah Watkins wrote:
> >
> >> On Thu, Aug 30, 2012 at 1:06 PM, Gregory Farnum <greg@inktank.com> wrote:
> >> > On Thu, Aug 30, 2012 at 12:55 PM, Noah Watkins <jayhawk@cs.ucsc.edu> wrote:
> >> >> Using a tick interval of 1 drops the cost down to 3 seconds, but still
> >> >> a long time for running many unit tests that use fresh mounts.
> >> >
> >> > Are you using ceph-fuse or the kernel client? And how many of each daemon type?
> >>
> >> I'm using the C api, and there are 3 mon, 3 mds, 1 osd.
> >>
> >> > That said; I'm seeing broadly similar numbers ? with one of each
> >> > daemon (but otherwise the vstart defaults) "time sudo ceph-fuse mnt"
> >> > reports 3.1 seconds.
> >>
> >>
> 
>