From 577c36d9aed2d9e9e9388a8b78614304ce82e06b Mon Sep 17 00:00:00 2001
From: samber <samber@users.noreply.github.com>
Date: Mon, 16 Mar 2026 03:50:27 +0000
Subject: [PATCH] Publish

---
 dist/rules/memcached/memcached-exporter.yml |  6 +++---
 dist/rules/snmp/snmp-exporter.yml           | 10 +++++-----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/dist/rules/memcached/memcached-exporter.yml b/dist/rules/memcached/memcached-exporter.yml
index c1a68b3..91e659a 100644
--- a/dist/rules/memcached/memcached-exporter.yml
+++ b/dist/rules/memcached/memcached-exporter.yml
@@ -16,7 +16,7 @@ groups:
         description: "Memcached instance is down on {{ $labels.instance }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: MemcachedConnectionLimitApproaching(>80%)
-      expr: '(memcached_current_connections / memcached_max_connections * 100) > 80'
+      expr: '(memcached_current_connections / memcached_max_connections * 100) > 80 and memcached_max_connections > 0'
       for: 2m
       labels:
         severity: warning
@@ -25,7 +25,7 @@ groups:
         description: "Memcached connection usage is above 80% on {{ $labels.instance }} (current value: {{ $value }}%)\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: MemcachedConnectionLimitApproaching(>95%)
-      expr: '(memcached_current_connections / memcached_max_connections * 100) > 95'
+      expr: '(memcached_current_connections / memcached_max_connections * 100) > 95 and memcached_max_connections > 0'
       for: 2m
       labels:
         severity: critical
@@ -44,7 +44,7 @@ groups:
 
     # High memory usage is expected if the cache is well-utilized. This alert fires when it approaches the configured limit, which may cause evictions.
     - alert: MemcachedMemoryUsageHigh(>90%)
-      expr: '(memcached_current_bytes / memcached_limit_bytes * 100) > 90'
+      expr: '(memcached_current_bytes / memcached_limit_bytes * 100) > 90 and memcached_limit_bytes > 0'
       for: 5m
       labels:
         severity: warning
diff --git a/dist/rules/snmp/snmp-exporter.yml b/dist/rules/snmp/snmp-exporter.yml
index c60d7c9..c7324e9 100644
--- a/dist/rules/snmp/snmp-exporter.yml
+++ b/dist/rules/snmp/snmp-exporter.yml
@@ -18,7 +18,7 @@ groups:
         description: "SNMP device {{ $labels.instance }} is unreachable.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: SnmpInterfaceDown
-      expr: 'ifOperStatus{ifAdminStatus="1"} == 2'
+      expr: '(ifOperStatus{job=~"snmp.*"} == 2) and on(instance, job, ifIndex) (ifAdminStatus{job=~"snmp.*"} == 1)'
       for: 2m
       labels:
         severity: critical
@@ -28,7 +28,7 @@ groups:
 
     # Threshold is a rough default. Adjust based on your network environment.
     - alert: SnmpInterfaceHighInboundErrorRate
-      expr: 'rate(ifInErrors[5m]) / (rate(ifHCInUcastPkts[5m]) + rate(ifHCInBroadcastPkts[5m]) + rate(ifHCInMulticastPkts[5m])) > 0.05 and (rate(ifHCInUcastPkts[5m]) + rate(ifHCInBroadcastPkts[5m]) + rate(ifHCInMulticastPkts[5m])) > 0'
+      expr: 'rate(ifInErrors{job=~"snmp.*"}[5m]) / (rate(ifHCInUcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCInBroadcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCInMulticastPkts{job=~"snmp.*"}[5m])) > 0.05 and (rate(ifHCInUcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCInBroadcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCInMulticastPkts{job=~"snmp.*"}[5m])) > 0'
       for: 5m
       labels:
         severity: warning
@@ -38,7 +38,7 @@ groups:
 
     # Threshold is a rough default. Adjust based on your network environment.
     - alert: SnmpInterfaceHighOutboundErrorRate
-      expr: 'rate(ifOutErrors[5m]) / (rate(ifHCOutUcastPkts[5m]) + rate(ifHCOutBroadcastPkts[5m]) + rate(ifHCOutMulticastPkts[5m])) > 0.05 and (rate(ifHCOutUcastPkts[5m]) + rate(ifHCOutBroadcastPkts[5m]) + rate(ifHCOutMulticastPkts[5m])) > 0'
+      expr: 'rate(ifOutErrors{job=~"snmp.*"}[5m]) / (rate(ifHCOutUcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCOutBroadcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCOutMulticastPkts{job=~"snmp.*"}[5m])) > 0.05 and (rate(ifHCOutUcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCOutBroadcastPkts{job=~"snmp.*"}[5m]) + rate(ifHCOutMulticastPkts{job=~"snmp.*"}[5m])) > 0'
       for: 5m
       labels:
         severity: warning
@@ -48,7 +48,7 @@ groups:
 
     # Threshold is a rough default. Adjust based on your link capacity and traffic patterns.
     - alert: SnmpInterfaceHighBandwidthUsageInbound
-      expr: 'rate(ifHCInOctets[5m]) * 8 / ifSpeed > 0.80 and ifSpeed > 0'
+      expr: 'rate(ifHCInOctets{job=~"snmp.*"}[5m]) * 8 / ifSpeed > 0.80 and ifSpeed > 0'
       for: 15m
       labels:
         severity: warning
@@ -58,7 +58,7 @@ groups:
 
     # Threshold is a rough default. Adjust based on your link capacity and traffic patterns.
     - alert: SnmpInterfaceHighBandwidthUsageOutbound
-      expr: 'rate(ifHCOutOctets[5m]) * 8 / ifSpeed > 0.80 and ifSpeed > 0'
+      expr: 'rate(ifHCOutOctets{job=~"snmp.*"}[5m]) * 8 / ifSpeed > 0.80 and ifSpeed > 0'
       for: 15m
       labels:
         severity: warning