From be1c7e50e1e8809ea56f2c9d472eccd8ffd73a97 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 04:57:58 +0200
Subject: Adding upstream version 1.44.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 health/health.d/memcached.conf | 50 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 health/health.d/memcached.conf

(limited to 'health/health.d/memcached.conf')

diff --git a/health/health.d/memcached.conf b/health/health.d/memcached.conf
new file mode 100644
index 00000000..77ca0afa
--- /dev/null
+++ b/health/health.d/memcached.conf
@@ -0,0 +1,50 @@
+
+# detect if memcached cache is full
+
+ template: memcached_cache_memory_usage
+       on: memcached.cache
+    class: Utilization
+     type: KV Storage
+component: Memcached
+     calc: $used * 100 / ($used + $available)
+    units: %
+    every: 10s
+     warn: $this > (($status >= $WARNING)  ? (70) : (80))
+     crit: $this > (($status == $CRITICAL) ? (80) : (90))
+    delay: up 0 down 15m multiplier 1.5 max 1h
+  summary: Memcached memory utilization
+     info: Cache memory utilization
+       to: dba
+
+
+# find the rate memcached cache is filling
+
+ template: memcached_cache_fill_rate
+       on: memcached.cache
+    class: Utilization
+     type: KV Storage
+component: Memcached
+   lookup: min -10m at -50m unaligned of available
+     calc: ($this - $available) / (($now - $after) / 3600)
+    units: KB/hour
+    every: 1m
+     info: Average rate the cache fills up (positive), or frees up (negative) space over the last hour
+
+
+# find the hours remaining until memcached cache is full
+
+ template: memcached_out_of_cache_space_time
+       on: memcached.cache
+    class: Utilization
+     type: KV Storage
+component: Memcached
+     calc: ($memcached_cache_fill_rate > 0) ? ($available / $memcached_cache_fill_rate) : (inf)
+    units: hours
+    every: 10s
+     warn: $this > 0 and $this < (($status >= $WARNING)  ? (48) : (8))
+     crit: $this > 0 and $this < (($status == $CRITICAL) ? (24) : (2))
+    delay: down 15m multiplier 1.5 max 1h
+  summary: Memcached estimation of lack of cache space
+     info: Estimated time the cache will run out of space \
+           if the system continues to add data at the same rate as the past hour
+       to: dba
-- 
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