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authorLennart Weller <lhw@ring0.de>2016-09-05 08:27:26 +0000
committerLennart Weller <lhw@ring0.de>2016-09-05 08:27:26 +0000
commit58d9525d7fcacffe52eff7282b7a888dd0dcc1d0 (patch)
tree251a805eb38d4d75b2a7f44c2cc22e7ea4849513 /conf.d/health.d/memcached.conf
parentFixes for service startup and extra config files (diff)
parentImported Upstream version 1.3.0+dfsg (diff)
downloadnetdata-58d9525d7fcacffe52eff7282b7a888dd0dcc1d0.tar.xz
netdata-58d9525d7fcacffe52eff7282b7a888dd0dcc1d0.zip
Merge tag 'upstream/1.3.0+dfsg'
Upstream version 1.3.0+dfsg
Diffstat (limited to 'conf.d/health.d/memcached.conf')
-rw-r--r--conf.d/health.d/memcached.conf46
1 files changed, 46 insertions, 0 deletions
diff --git a/conf.d/health.d/memcached.conf b/conf.d/health.d/memcached.conf
new file mode 100644
index 000000000..05ff14711
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+++ b/conf.d/health.d/memcached.conf
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+
+# make sure memcached is running
+
+template: memcached_last_collected_secs
+ on: memcached.cache
+ calc: $now - $last_collected_t
+ every: 10s
+ warn: $this > ( 5 * $update_every)
+ crit: $this > (10 * $update_every)
+ units: seconds ago
+ info: number of seconds since the last successful data collection
+
+
+# detect if memcached cache is full
+
+template: cache_full_pcent
+ on: memcached.cache
+ calc: $used * 100 / ($used + $available)
+ every: 10s
+ warn: $this > 80
+ crit: $this > 90
+ units: %
+ info: current cache memory usage
+
+
+# find the rate memcached cache is filling
+
+template: cache_fill_rate
+ on: memcached.cache
+ lookup: max -1s at -30m unaligned of available
+ calc: ($this - $available) / ($now - $after)
+ every: 15s
+ units: KB/s
+ info: average rate the cache fills up (positive), or frees up (negative) space, for the last 30 minutes
+
+
+# find the hours remaining until memcached cache is full
+
+template: cache_full_after_hours
+ on: memcached.cache
+ calc: $available / $cache_fill_rate / 3600
+ every: 10s
+ warn: $this > 0 and $this < 48
+ crit: $this > 0 and $this < 24
+ units: hours
+ info: estimated time the cache will run out of space, if the system continues to add data with the rate of the last 30 minutes