mgr/prometheus: add pool compression stats

This patch adds the compress bytes used and stored metrics for
each pool, so compression ratios and savings can be easily determined

Signed-off-by: Paul Cuzner <pcuzner@redhat.com>
(cherry picked from commit 2beda1dc9ccb7b3ddf28ec0657eddd26a021b503)

diff --git a/src/pybind/mgr/prometheus/module.py b/src/pybind/mgr/prometheus/module.py
index 362ba900bdbce0c5592d34295b226105a5d9fff3..25b36c331c6ae19d27aabeded683cfe2bf509797 100644 (file)
--- a/src/pybind/mgr/prometheus/module.py
+++ b/src/pybind/mgr/prometheus/module.py
@@ -62,7 +62,8 @@ def health_status_to_number(status):
 DF_CLUSTER = ['total_bytes', 'total_used_bytes', 'total_used_raw_bytes']
 
 DF_POOL = ['max_avail', 'stored', 'stored_raw', 'objects', 'dirty',
-           'quota_bytes', 'quota_objects', 'rd', 'rd_bytes', 'wr', 'wr_bytes']
+           'quota_bytes', 'quota_objects', 'rd', 'rd_bytes', 'wr', 'wr_bytes',
+           'compress_bytes_used', 'compress_under_bytes']
 
 OSD_POOL_STATS = ('recovering_objects_per_sec', 'recovering_bytes_per_sec',
                   'recovering_keys_per_sec', 'num_objects_recovered',