Previously the prefix on admin socket names
was a config setting, had to be manually set
for one and only one cluster name.  In the
output stats, the cluster name was not used,
'ceph' was always passed through.

This change makes the collector gather stats
for all clusters it sees, and include the
name of the cluster in the metric names.

These stats are only present in more recent versions
of Ceph (currently >=0.72, but expected to be backported).

Because these stats are for cluster-wide pools rather than
an individual host/service, they are reported with a global
name, ceph.<cluster name>.pool.<pool id>.*

pool statistics.

Optionally (off by default) report service
statistics under ceph.cluster isntead
of servers.<hostname>

This fixes some of the Ceph tests, and disables the tests that use
mocking.

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>

- Removing use of 2.7-only subprocess.check_call
- Using 'perf schema' for perf counter output

I don't think the filter(None,...) idiom is necessary here?...

Signed-off-by: Dan Mick <dan.mick@inktank.com>

The goal here is to have failures to talk to one service
not prevent us gathering stats from other services.  The
symptom was that when there was one stale ceph socket file
all ceph stats stopped being collected.

For larger systems, the stat collection can be
overly verbose and cause excessive load on low
powered graphite servers.  We introduce 'osd_stats_enabled'
and 'long_running_detail' to provide a flexible way
to tone down the verbosity.

Signed-off-by: John Spray <john.spray@inktank.com>

Longrunning avg and _bytes statistics were losing
the GlobalName type and getting emitted as stats within
a server's path.  Introduce LocalName and require explicit
local/global type for all stats names to make issues like
this more obvious.

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>

Signed-off-by: Gregory Meno <gmeno@redhat.com>