Redis

Collector Type: Agent

Category: Application Monitors

Application Name: Redis

Global Template Name: Linux - RedisDB Monitors

Introduction

Redis is an in-memory data structure store, used as a distributed, in-memory key–value database, cache and message broker, with optional durability. Redis supports different kinds of abstract data structures, such as strings, lists, maps, sets, sorted sets, HyperLogLogs, bitmaps, streams, and spatial indexes.

Parameters

Name	Default Value	Description
Host IP Address	127.0.0.1	The host on which Redis is running.
Port	6379	The port on which Redis is running.
Password	NA	The password of the Redis server, if authentication is enabled.
Redis socket file path	NA	The path of the redis unix socket. Host and port will be ignored if provided.
Time Out	0	The socket timeout for the redis connection. The value 0 means the timeout disabled.

Note: All field attributes are mandatory, use default values wherever applicable.

Collected Metrics

Metric Name	Display Name	Description
redis.uptime	Redis Uptime	Checks the uptime of the Redis service.
redis.clients.blocked	Redis Clients Blocked	Number of clients pending on a blocking call.
redis.clients.biggest_input_buf	Redis Clients Biggest InputBuf	Biggest input buffer among current client connections.
redis.clients.longest_output_list	Redis Clients Longest OutputList	Longest output list among current client connections.
redis.keys.total	Redis Total Keys	Provides the total number of keys from all the DBs.
redis.keys.evicted	Redis Evicted Keys	Number of evicted keys due to maxmemory limit.
redis.keys.expired	Redis Expired Keys	Total number of key expiration events.
redis.pubsub.channels	Redis Pubsub Channels	Global number of pub/sub channels with client subscriptions.
redis.pubsub.patterns	Redis Pubsub Patterns	Global number of pub/sub pattern with client subscriptions.
redis.perf.latest_fork_usec	Redis Latest Fork Op Time	Duration of the latest fork operation in microseconds.
redis.keys.evicted	Redis Evicted Keys	Number of evicted keys due to maxmemory limit.
redis.keys.expired	Redis Expired Keys	Total number of key expiration events.
redis.pubsub.channels	Redis Pubsub Channels	Global number of pub/sub channels with client subscriptions.
redis.pubsub.patterns	Redis Pubsub Patterns	Global number of pub/sub pattern with client subscriptions.
redis.perf.latest_fork_usec	Redis Latest Fork Op Time	Duration of the latest fork operation in microseconds.
redis.net.clients	Redis Client Connections	Number of client connections (excluding connections from slaves).
redis.net.slaves	Redis Connected Slaves	Number of connected slaves.
redis.net.rejected	Redis Connections Rejected	Number of connections rejected because of maxclients limit.
redis.changes	Redis Changes	Number of changes since the last save.
redis.rdb.changes	Redis RDB Changes	Number of changes since the last dump.
redis.rdb.last_bgsave_time	Redis RDB Last Save Op Time	Duration of the last RDB save operation in seconds.
redis.aof.last_rewrite_time	Redis AOF Last Rewrite Op Time	Duration of the last AOF rewrite operation in seconds.
redis.aof.size	Redis AOF Size	AOF current file size in MB.
redis.mem.used	Redis Used Memory	Total number of Mbytes allocated by Redis using its allocator (either standard libc, jemalloc, or an alternative allocator such as tcmalloc).
redis.mem.rss	Redis RSS Memory	Number of bytes that Redis allocated as seen by the operating system (a.k.a resident set size). This is the number reported by tools such as top and ps.
redis.mem.lua	Redis LUA Memory	Number of Mbytes used by the Lua engine.
redis.mem.peak	Redis Peak Memory	Peak memory consumed by Redis (in Mbytes).
redis.mem.fragmentation_ratio	Redis Memory Fragmentation Ratio	Ratio between rss memory used and total memory used.
redis.replica.last_io_seconds_ago	Redis Replication Lag	Number of seconds since the last interaction with master.
redis.perf.latest_fork_usec	Redis Latest Fork Op Time	Duration of the latest fork operation in microseconds.