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doc/prometheus: Mention the long running avg types

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Signed-off-by: Boris Ranto <branto@redhat.com>
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Boris Ranto 2018-05-22 22:51:04 +02:00
parent 674118b6f6
commit 7f468f4d51
1 changed files with 6 additions and 0 deletions
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doc/mgr/prometheus.rst
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@ -49,6 +49,12 @@ The *cluster* statistics (i.e. those global to the Ceph cluster)
have labels appropriate to what they report on. For example,
metrics relating to pools have a ``pool_id`` label.
The long running averages that represent the histograms from core Ceph
are represented by a pair of ``<name>_sum`` and ``<name>_count`` metrics.
This is similar to how histograms are represented in `Prometheus <https://prometheus.io/docs/concepts/metric_types/#histogram>`_
and they can also be treated `similarly <https://prometheus.io/docs/practices/histograms/>`_.
Pool and OSD metadata series
----------------------------