Redis dashboard

Introduction

Redis dashboard monitors multiple data and service-related metrics.

The available metrics are defined in the following sections.

Redis uptime

Uptime graph shows time since last restart/shutdown.

Metrics:

max(max_over_time(redis_uptime_in_seconds{kubernetes_name=~"redis-announce-0"}[$__interval]))

Graph visual

Redis clients

Clients graph shows number of connected clients.

Metrics:

redis_connected_clients{kubernetes_name=~"redis-announce-0"}

Graph visual

Redis memory usage

Memory usage graph shows percentage of used memory.

Metrics:

100 * (redis_memory_used_bytes{kubernetes_name=~"redis-announce-0"}  / redis_memory_max_bytes{kubernetes_name=~"redis-announce-0"} )

Graph visual

Redis commands executed per second

Commands executed per second graph shows the rate of commands executed per second, aggregated by one minute.

Metrics:

rate(redis_commands_processed_total{kubernetes_name=~"redis-announce-0"}[1m])

Graph visual

Redis commands executed per second

Commands executed per second graph shows the rate of commands executed per second, aggregated by one minute.

Metrics:

rate(redis_commands_processed_total{kubernetes_name=~"redis-announce-0"}[1m])

Graph visual

Redis hits/missed per second

Hits/missed per second graph shows the rate of hits and misses per second, aggregated by five minutes.

Metrics: It includes two metrics:

• Hits metrics

irate(redis_keyspace_hits_total{kubernetes_name=~"redis-announce-0"}[5m])

• Misses metrics

irate(redis_keyspace_hits_total{kubernetes_name=~"redis-announce-0"}[5m])

Graph visual

Redis total memory usage

Total memory usage graph shows total memory usage and total memory free + used.

Metrics: It includes two metrics:

• Used memory

redis_memory_used_bytes{kubernetes_name=~"redis-announce-0"} 

• Max memory

redis_memory_max_bytes{kubernetes_name=~"redis-announce-0"} 

Graph visual

Redis network I/O

Network I/O graph shows rate of total in/out bytes, aggregated by 5 minutes.

Metrics: It includes two metrics:

• In bytes

rate(redis_net_input_bytes_total{kubernetes_name=~"redis-announce-0"}[5m])

• Out bytes

rate(redis_net_output_bytes_total{kubernetes_name=~"redis-announce-0"}[5m])

Graph visual

Redis total items per DB

Total items per DB graph shows total number of items separated by db number.

Metrics:

sum (redis_db_keys{kubernetes_name=~"redis-announce-0"}) by (db) > 0

Graph visual

Redis expiring vs not-expiring keys

Expiring vs not-expiring keys graph shows total number of expiring and not expiring keys.

Metrics: It includes two metrics:

• Not-expiring keys.

sum (redis_db_keys{kubernetes_name=~"redis-announce-0"}) - sum (redis_db_keys_expiring{kubernetes_name=~"redis-announce-0"}) 

• Expiring keys

sum (redis_db_keys_expiring{kubernetes_name=~"redis-announce-0"}) 

Graph visual

Redis expired/evicted

Expired/evicted graph shows total number of expired and evicted keys, aggregated by 5 minutes.

Metrics: It includes two metrics:

• Expired keys.

sum(rate(redis_expired_keys_total{kubernetes_name=~"redis-announce-0"}[5m])) by (kubernetes_name)

• Evicted keys

sum(rate(redis_evicted_keys_total{kubernetes_name=~"redis-announce-0"}[5m])) by (kubernetes_name)

Graph visual

Redis command calls per second

Command calls per second graph shows top commands number of executions rate, aggregated by 5 minutes.

Metrics:

topk(5, irate(redis_commands_total{kubernetes_name=~"redis-announce-0"} [1m]))

Graph visual