alert: ExporterDown
expr: up == 0
for: 5m
annotations:
  description: Exporter {{ $labels.instance }} has been down for more than 5 minutes.
  summary: Exporter {{ $labels.instance }} down

alert: DBNotEnoughStrage
expr: node_filesystem_avail_bytes{job=~"dbserver"}
  < 2.147483648e+09
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} not enough strage less than 2GB
  summary: Instance {{ $labels.instance }} not enough strage.

alert: DBNotEnoughStrageForSystem
expr: node_filesystem_free_bytes
  - node_filesystem_avail_bytes{job=~"dbserver"} < 5.24288e+08
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} not enough strage less than 500MB
  summary: Instance {{ $labels.instance }} not enough strage.

alert: InstanceDown
expr: nginx_up == 0
for: 5m
labels:
  severity: page
annotations:
  description: '{{ $labels.instance }} of job {{ $labels.job }} has been down for
    more than 5 minutes.'
  summary: Instance {{ $labels.instance }} down

alert: JVMUseMetaspaceOver1GB
expr: java_lang_Memory_NonHeapMemoryUsage_used
  > 1.073741824e+09
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} use Metaspace over 1GB
  summary: Instance {{ $labels.instance }} use Metaspace over 1GB

alert: NotEnoughMemory
expr: node_memory_MemAvailable{job=~"gateway|webserver|apserver"}
  < 1.048576e+08
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} not enough memory less than 100MB
  summary: Instance {{ $labels.instance }} not enough memory.

alert: NotEnoughMemory
expr: node_memory_MemAvailable_bytes{job=~"dbserver"}
  < 5.24288e+08
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} not enough memory less than 500MB
  summary: Instance {{ $labels.instance }} not enough memory.

alert: OverNginxConnectionsActive
expr: nginx_connections_active
  > 40
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} over 40 nginx connections
  summary: Instance {{ $labels.instance }} over 40 nginx connections

alert: OverWork
expr: node_load1{job=~"dbserver"}
  > 3
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} node_load over 2 for more than 5 minutes.
  summary: Instance {{ $labels.instance }} over working.

alert: OverWork
expr: node_load1{job="gateway"}
  > 2
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} node_load over 1 for more than 5 minutes.
  summary: Instance {{ $labels.instance }} over working.

alert: OverWork
expr: node_load1{job=~"webserver|apserver"}
  > 2
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} node_load over 2 for more than 5 minutes.
  summary: Instance {{ $labels.instance }} over working.

alert: RedisUsageMemOver
expr: 100
  * redis_memory_used_bytes / redis_memory_max_bytes > 80
for: 5m
labels:
  severity: page
annotations:
  description: redis is using 80% of the maximum value
  summary: redis is using 80% of the maximum value

alert: ServerNotEnoughStrage
expr: node_filesystem_avail{job=~"gateway|webserver|apserver"}
  < 2.147483648e+09
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} not enough strage less than 2GB
  summary: Instance {{ $labels.instance }} not enough strage.

alert: ServerNotEnoughStrageForSystem
expr: node_filesystem_free
  - node_filesystem_avail{job=~"gateway|webserver|apserver"} < 5.24288e+08
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} not enough strage less than 500MB
  summary: Instance {{ $labels.instance }} not enough strage.

alert: SlaveBehindMaster
expr: mysql_slave_status_seconds_behind_master{job=~"mysql_slave"}
  > 0
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} behind master
  summary: Instance {{ $labels.instance }} behind master

alert: StopSlaveIO
expr: mysql_slave_status_slave_io_running{job=~"mysql_slave"}
  < 1
for: 1m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} stop slave io
  summary: Instance {{ $labels.instance }} stop slave io

alert: StopSlaveSQL
expr: mysql_slave_status_slave_sql_running{job=~"mysql_slave"}
  < 1
for: 1m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} stop slave SQL
  summary: Instance {{ $labels.instance }} stop slave SQL

alert: UserHeapMemOver1GB
expr: java_lang_Memory_HeapMemoryUsage_used
  > 1.073741824e+09
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} use heap memory over 900MB
  summary: Instance {{ $labels.instance }} use heap memory over 900MB

alert: UserOldMemOver800MB
expr: java_lang_G1_Old_Gen_Usage_used
  > 8.388608e+08
for: 5m
labels:
  severity: page
annotations:
  description: Instance {{ $labels.instance }} use old over 800MB
  summary: Instance {{ $labels.instance }} use old  over 800MB