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# Availability
template: vernemq_last_collected_secs
on: vernemq.node_uptime
calc: $now - $last_collected_t
units: seconds ago
every: 10s
warn: $this > (($status >= $WARNING) ? ($update_every) : ( 5 * $update_every))
crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every))
delay: down 5m multiplier 1.5 max 1h
info: number of seconds since the last successful data collection
to: sysadmin
# Socket errors
template: vernemq_socket_errors
on: vernemq.socket_errors
lookup: sum -1m unaligned absolute of socket_error
units: errors
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 2m down 5m multiplier 1.5 max 2h
info: number of socket errors in the last minute
to: sysadmin
# Queues dropped/expired/unhandled PUBLISH messages
template: vernemq_queue_message_drop
on: vernemq.queue_undelivered_messages
lookup: sum -1m unaligned absolute of queue_message_drop
units: dropped messages
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of dropped messaged due to full queues in the last minute
to: sysadmin
template: vernemq_queue_message_expired
on: vernemq.queue_undelivered_messages
lookup: sum -1m unaligned absolute of queue_message_expired
units: expired messages
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (15))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of messages which expired before delivery in the last minute
to: sysadmin
template: vernemq_queue_message_unhandled
on: vernemq.queue_undelivered_messages
lookup: sum -1m unaligned absolute of queue_message_unhandled
units: unhandled messages
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of unhandled messages (connections with clean session=true) in the last minute
to: sysadmin
# Erlang VM
template: vernemq_average_scheduler_utilization
on: vernemq.average_scheduler_utilization
lookup: average -10m unaligned
units: %
every: 1m
warn: $this > (($status >= $WARNING) ? (75) : (85))
crit: $this > (($status == $CRITICAL) ? (85) : (95))
delay: down 15m multiplier 1.5 max 1h
info: average scheduler utilization over the last 10 minutes
to: sysadmin
# Cluster communication and netsplits
template: vernemq_cluster_dropped
on: vernemq.cluster_dropped
lookup: sum -1m unaligned
units: KiB
every: 1m
warn: $this > 0
delay: up 5m down 5m multiplier 1.5 max 1h
info: amount of traffic dropped during communication with the cluster nodes in the last minute
to: sysadmin
template: vernemq_netsplits
on: vernemq.netsplits
lookup: sum -1m unaligned absolute of netsplit_detected
units: netsplits
every: 10s
warn: $this > 0
delay: down 5m multiplier 1.5 max 2h
info: number of detected netsplits (split brain situation) in the last minute
to: sysadmin
# Unsuccessful CONNACK
template: vernemq_mqtt_connack_sent_reason_unsuccessful
on: vernemq.mqtt_connack_sent_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of sent unsuccessful v3/v5 CONNACK packets in the last minute
to: sysadmin
# Not normal DISCONNECT
template: vernemq_mqtt_disconnect_received_reason_not_normal
on: vernemq.mqtt_disconnect_received_reason
lookup: sum -1m unaligned absolute match-names of !normal_disconnect,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received not normal v5 DISCONNECT packets in the last minute
to: sysadmin
template: vernemq_mqtt_disconnect_sent_reason_not_normal
on: vernemq.mqtt_disconnect_sent_reason
lookup: sum -1m unaligned absolute match-names of !normal_disconnect,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of sent not normal v5 DISCONNECT packets in the last minute
to: sysadmin
# SUBSCRIBE errors and unauthorized attempts
template: vernemq_mqtt_subscribe_error
on: vernemq.mqtt_subscribe_error
lookup: sum -1m unaligned absolute
units: failed ops
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of failed v3/v5 SUBSCRIBE operations in the last minute
to: sysadmin
template: vernemq_mqtt_subscribe_auth_error
on: vernemq.mqtt_subscribe_auth_error
lookup: sum -1m unaligned absolute
units: attempts
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of unauthorized v3/v5 SUBSCRIBE attempts in the last minute
to: sysadmin
# UNSUBSCRIBE errors
template: vernemq_mqtt_unsubscribe_error
on: vernemq.mqtt_unsubscribe_error
lookup: sum -1m unaligned absolute
units: failed ops
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of failed v3/v5 UNSUBSCRIBE operations in the last minute
to: sysadmin
# PUBLISH errors and unauthorized attempts
template: vernemq_mqtt_publish_errors
on: vernemq.mqtt_publish_errors
lookup: sum -1m unaligned absolute
units: failed ops
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of failed v3/v5 PUBLISH operations in the last minute
to: sysadmin
template: vernemq_mqtt_publish_auth_errors
on: vernemq.mqtt_publish_auth_errors
lookup: sum -1m unaligned absolute
units: attempts
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of unauthorized v3/v5 PUBLISH attempts in the last minute
to: sysadmin
# Unsuccessful and unexpected PUBACK
template: vernemq_mqtt_puback_received_reason_unsuccessful
on: vernemq.mqtt_puback_received_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received unsuccessful v5 PUBACK packets in the last minute
to: sysadmin
template: vernemq_mqtt_puback_sent_reason_unsuccessful
on: vernemq.mqtt_puback_sent_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of sent unsuccessful v5 PUBACK packets in the last minute
to: sysadmin
template: vernemq_mqtt_puback_unexpected
on: vernemq.mqtt_puback_invalid_error
lookup: sum -1m unaligned absolute
units: messages
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received unexpected v3/v5 PUBACK packets in the last minute
to: sysadmin
# Unsuccessful and unexpected PUBREC
template: vernemq_mqtt_pubrec_received_reason_unsuccessful
on: vernemq.mqtt_pubrec_received_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received unsuccessful v5 PUBREC packets in the last minute
to: sysadmin
template: vernemq_mqtt_pubrec_sent_reason_unsuccessful
on: vernemq.mqtt_pubrec_sent_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of sent unsuccessful v5 PUBREC packets in the last minute
to: sysadmin
template: vernemq_mqtt_pubrec_invalid_error
on: vernemq.mqtt_pubrec_invalid_error
lookup: sum -1m unaligned absolute
units: messages
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received unexpected v3 PUBREC packets in the last minute
to: sysadmin
# Unsuccessful PUBREL
template: vernemq_mqtt_pubrel_received_reason_unsuccessful
on: vernemq.mqtt_pubrel_received_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received unsuccessful v5 PUBREL packets in the last minute
to: sysadmin
template: vernemq_mqtt_pubrel_sent_reason_unsuccessful
on: vernemq.mqtt_pubrel_sent_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of sent unsuccessful v5 PUBREL packets in the last minute
to: sysadmin
# Unsuccessful and unexpected PUBCOMP
template: vernemq_mqtt_pubcomp_received_reason_unsuccessful
on: vernemq.mqtt_pubcomp_received_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received unsuccessful v5 PUBCOMP packets in the last minute
to: sysadmin
template: vernemq_mqtt_pubcomp_sent_reason_unsuccessful
on: vernemq.mqtt_pubcomp_sent_reason
lookup: sum -1m unaligned absolute match-names of !success,*
units: packets
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of sent unsuccessful v5 PUBCOMP packets in the last minute
to: sysadmin
template: vernemq_mqtt_pubcomp_unexpected
on: vernemq.mqtt_pubcomp_invalid_error
lookup: sum -1m unaligned absolute
units: messages
every: 1m
warn: $this > (($status >= $WARNING) ? (0) : (5))
delay: up 5m down 5m multiplier 1.5 max 2h
info: number of received unexpected v3/v5 PUBCOMP packets in the last minute
to: sysadmin
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