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+
+# Warn if a list keys operation is running.
+ template: riakkv_list_keys_active
+ on: riak.core.fsm_active
+ class: Utilization
+ type: Database
+component: Riak KV
+ calc: $list_fsm_active
+ units: state machines
+ every: 10s
+ warn: $list_fsm_active > 0
+ summary: Riak KV active list keys
+ info: Number of currently running list keys finite state machines
+ to: dba
+
+
+## Timing healthchecks
+# KV GET
+ template: riakkv_1h_kv_get_mean_latency
+ on: riak.kv.latency.get
+ class: Latency
+ type: Database
+component: Riak KV
+ calc: $node_get_fsm_time_mean
+ lookup: average -1h unaligned of time
+ every: 30s
+ units: ms
+ info: average time between reception of client GET request and \
+ subsequent response to client over the last hour
+
+ template: riakkv_kv_get_slow
+ on: riak.kv.latency.get
+ class: Latency
+ type: Database
+component: Riak KV
+ calc: $mean
+ lookup: average -3m unaligned of time
+ units: ms
+ every: 10s
+ warn: ($this > ($riakkv_1h_kv_get_mean_latency * 2) )
+ crit: ($this > ($riakkv_1h_kv_get_mean_latency * 3) )
+ summary: Riak KV GET latency
+ info: Average time between reception of client GET request and \
+ subsequent response to the client over the last 3 minutes, \
+ compared to the average over the last hour
+ delay: down 5m multiplier 1.5 max 1h
+ to: dba
+
+# KV PUT
+ template: riakkv_1h_kv_put_mean_latency
+ on: riak.kv.latency.put
+ class: Latency
+ type: Database
+component: Riak KV
+ calc: $node_put_fsm_time_mean
+ lookup: average -1h unaligned of time
+ every: 30s
+ units: ms
+ summary: Riak KV PUT mean latency
+ info: Average time between reception of client PUT request and \
+ subsequent response to the client over the last hour
+
+ template: riakkv_kv_put_slow
+ on: riak.kv.latency.put
+ class: Latency
+ type: Database
+component: Riak KV
+ calc: $mean
+ lookup: average -3m unaligned of time
+ units: ms
+ every: 10s
+ warn: ($this > ($riakkv_1h_kv_put_mean_latency * 2) )
+ crit: ($this > ($riakkv_1h_kv_put_mean_latency * 3) )
+ summary: Riak KV PUT latency
+ info: Average time between reception of client PUT request and \
+ subsequent response to the client over the last 3 minutes, \
+ compared to the average over the last hour
+ delay: down 5m multiplier 1.5 max 1h
+ to: dba
+
+
+## VM healthchecks
+
+# Default Erlang VM process limit: 262144
+# On systems observed, this is < 2000, but may grow depending on load.
+ template: riakkv_vm_high_process_count
+ on: riak.vm
+ class: Utilization
+ type: Database
+component: Riak KV
+ calc: $sys_process_count
+ units: processes
+ every: 10s
+ warn: $this > 10000
+ crit: $this > 100000
+ summary: Riak KV number of processes
+ info: Number of processes running in the Erlang VM
+ to: dba