DCS Metrics

Single-node

Supported

The monitoring on the instance dimension is conducted on the Redis Server.

N/A

N/A

Master/standby

Supported

The master node is monitored.

Supported

The master and standby nodes are monitored.

N/A

Read/write splitting

Supported

The master node is monitored.

Supported

The master and standby nodes are monitored.

Supported

Each proxy is monitored.

Proxy Cluster

Supported

The monitoring data is the aggregated master node data.

Supported

Each shard is monitored.

Supported

Each proxy is monitored.

Redis Cluster

Supported

The monitoring data is the aggregated master node data.

Supported

Each shard is monitored.

N/A

cpu_usage

CPU Usage

The monitored object's maximum CPU usage among multiple sampling values in a monitoring period

0–100

%

N/A

Single-node, master/standby, or read/write splitting DCS Redis instance

1 minute

cpu_avg_usage

Average CPU Usage

The monitored object's average CPU usage of multiple sampling values in a monitoring period

0–100

%

N/A

Single-node, master/standby, or read/write splitting DCS Redis instance

1 minute

command_max_delay

Maximum Command Latency

Maximum latency of commands

≥ 0

ms

N/A

DCS Redis instance

1 minute

total_connections_received

New Connections

Number of connections received during the monitoring period. Includes connections from replicas and established for system monitoring, configuration synchronization, and services

≥ 0

N/A

N/A

DCS Redis instance

1 minute

is_slow_log_exist

Slow Query Logs

Existence of slow query logs in the instance

Slow queries caused by the MIGRATE, SLAVEOF, CONFIG, BGSAVE, and BGREWRITEAOF commands are not counted.

• 1: yes
• 0: no

N/A

N/A

DCS Redis instance

1 minute

memory_usage

Memory Usage

Memory consumed by the monitored object

0–100

%

N/A

DCS Redis instance

1 minute

expires

Keys With an Expiration

Number of keys with an expiration in Redis

≥ 0

N/A

N/A

DCS Redis instance

1 minute

keyspace_hits_perc

Hit Rate

Ratio of the number of Redis cache hits to the number of lookups. Calculation: keyspace_hits/(keyspace_hits + keyspace_misses)

Aggregated from the master and replica nodes. If no read command is performed within a monitoring period, the ratio is 0.

0–100

%

N/A

DCS Redis instance

1 minute

used_memory

Used Memory

Total number of bytes used by the Redis server

≥ 0

byte

1024(IEC)

DCS Redis instance

1 minute

used_memory_dataset

Used Memory Dataset

Dataset memory that the Redis server has used

≥ 0

byte

1024(IEC)

DCS Redis instance

1 minute

used_memory_dataset_perc

Used Memory Dataset Ratio

Percentage of dataset memory that server has used

Aggregated from the master and replica nodes.

0–100

%

N/A

DCS Redis instance

1 minute

used_memory_rss

Used Memory RSS

Resident set size (RSS) memory that the Redis server has used, which is the memory that actually resides in the memory, including all stack and heap memory but not swapped-out memory

≥ 0

byte

1024(IEC)

DCS Redis instance

1 minute

instantaneous_ops

Ops per Second

Number of commands processed per second

≥ 0

N/A

N/A

DCS Redis instance

1 minute

keyspace_misses

Keyspace Misses

Number of failed lookups of keys in the main dictionary during the monitoring period

Aggregated from the master and replica nodes.

≥ 0

N/A

N/A

DCS Redis instance

1 minute

keys

Keys

Number of keys in Redis

≥ 0

N/A

N/A

DCS Redis instance

1 minute

blocked_clients

Blocked Clients

Number of clients suspended by block operations

≥ 0

N/A

N/A

DCS Redis instance

1 minute

connected_clients

Connected Clients

Number of connected clients. Includes connections established for system monitoring, configuration synchronization, and services.

≥ 0

N/A

N/A

DCS Redis instance

1 minute

del

DEL

Number of DEL commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

evicted_keys

Evicted Keys

Number of keys that have been evicted and deleted during the monitoring period

Aggregated from the master and replica nodes.

≥ 0

N/A

N/A

DCS Redis instance

1 minute

expire

EXPIRE

Number of EXPIRE commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

expired_keys

Expired Keys

Number of keys that have expired and been deleted during the monitoring period

Aggregated from the master and replica nodes.

≥ 0

N/A

N/A

DCS Redis instance

1 minute

get

GET

Number of GET commands processed per second

Aggregated from the master and replica nodes.

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

hdel

HDEL

Number of HDEL commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

hget

HGET

Number of HGET commands processed per second

Aggregated from the master and replica nodes.

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

hmget

HMGET

Number of HMGET commands processed per second

Aggregated from the master and replica nodes.

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

hmset

HMSET

Number of HMSET commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

hset

HSET

Number of HSET commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

instantaneous_input_kbps

Input Flow

Instantaneous input traffic

≥ 0

KiB/s

1024(IEC)

DCS Redis instance

1 minute

instantaneous_output_kbps

Output Flow

Instantaneous output traffic

≥ 0

KiB/s

1024(IEC)

DCS Redis instance

1 minute

memory_frag_ratio

Memory Fragmentation Ratio

Current memory fragmentation

≥ 0

N/A

N/A

DCS Redis instance

1 minute

mget

MGET

Number of MGET commands processed per second

Aggregated from the master and replica nodes.

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

mset

MSET

Number of MSET commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

pubsub_channels

PubSub Channels

Number of Pub/Sub channels

≥ 0

N/A

N/A

DCS Redis instance

1 minute

pubsub_patterns

PubSub Patterns

Number of Pub/Sub patterns

≥ 0

N/A

N/A

DCS Redis instance

1 minute

set

SET

Number of SET commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

used_memory_lua

Used Memory Lua

Number of bytes used by the Lua engine

≥ 0

byte

1024(IEC)

DCS Redis instance

1 minute

used_memory_peak

Used Memory Peak

Peak memory consumed by Redis since the Redis server last started

≥ 0

byte

1024(IEC)

DCS Redis instance

1 minute

sadd

Sadd

Number of SADD commands processed per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

smembers

Smembers

Number of SMEMBERS commands processed per second

Aggregated from the master and replica nodes.

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

scan

SCAN

Number of SCAN operations per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

setex

SETEX

Number of SETEX operations per second

0–500,000

Count/s

N/A

DCS Redis instance

1 minute

rx_controlled

Flow Control Times

Number of times that client requests are controlled in a period. This metric is incremented by 1 each time a client request is controlled.

If the value is greater than 0, the consumed bandwidth exceeds the upper limit and flow control is triggered on a node. The node suspends client commands temporarily.

≥ 0

Count

N/A

DCS Redis instance

1 minute

bandwidth_usage

Bandwidth Usage

Percentage of the used bandwidth to the maximum bandwidth limit

0-200

%

N/A

DCS Redis instance

1 minute

command_max_rt

Maximum Latency

Maximum delay from when the node receives commands to when it responds

≥ 0

μs

N/A

Single-node DCS Redis instance

1 minute

command_avg_rt

Average Latency

Average delay from when the node receives commands to when it responds

≥ 0

μs

N/A

Single-node DCS Redis instance

1 minute

cpu_usage

CPU Usage

The monitored object's maximum CPU usage among multiple sampling values in a monitoring period

0–100

%

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

cpu_avg_usage

Average CPU Usage

The monitored object's average CPU usage of multiple sampling values in a monitoring period

0–100

%

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

memory_usage

Memory Usage

Memory consumed by the monitored object

0–100

%

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

connected_clients

Connected Clients

Number of connected clients. Includes connections established for system monitoring, configuration synchronization, and services.

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

client_longest_out_list

Client Longest Output List

Longest output list among current client connections

≥ 0

N/A

N/A

Data nodes (master/standby, read/write splitting, and cluster Redis 4.0 instances)

1 minute

client_biggest_in_buf

Client Biggest Input Buf

Maximum input data length among current client connections

≥ 0

byte

1024(IEC)

Data nodes (master/standby, read/write splitting, and cluster Redis 4.0 instances)

1 minute

blocked_clients

Blocked Clients

Number of clients suspended by block operations such as BLPOP, BRPOP, and BRPOPLPUSH

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

used_memory

Used Memory

Total number of bytes used by the Redis server

≥ 0

byte

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

used_memory_rss

Used Memory RSS

RSS memory that the Redis server has used, which includes all stack and heap memory but not swapped-out memory

≥ 0

byte

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

used_memory_peak

Used Memory Peak

Peak memory consumed by Redis since the Redis server last started

≥ 0

byte

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

used_memory_lua

Used Memory Lua

Number of bytes used by the Lua engine

≥ 0

byte

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

memory_frag_ratio

Memory Fragmentation Ratio

Current memory fragmentation, which is the ratio between used_memory_rss/used_memory.

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

total_connections_received

New Connections

Number of connections received during the monitoring period. Includes connections from replicas and established for system monitoring, configuration synchronization, and services

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

total_commands_processed

Commands Processed

Number of commands processed during the monitoring period

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

instantaneous_ops

Ops per Second

Number of commands processed per second

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

total_net_input_bytes

Network Input Bytes

Number of bytes received during the monitoring period

≥ 0

byte

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

total_net_output_bytes

Network Output Bytes

Number of bytes sent during the monitoring period

≥ 0

byte

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

instantaneous_input_kbps

Input Flow

Instantaneous input traffic

≥ 0

KiB/s

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

instantaneous_output_kbps

Output Flow

Instantaneous output traffic

≥ 0

KiB/s

1024(IEC)

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

rejected_connections

Rejected Connections

Number of connections that have exceeded maxclients and been rejected during the monitoring period

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

expired_keys

Expired Keys

Number of keys that have expired and been deleted during the monitoring period

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

evicted_keys

Evicted Keys

Number of keys that have been evicted and deleted during the monitoring period

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

pubsub_channels

PubSub Channels

Number of Pub/Sub channels

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

pubsub_patterns

PubSub Patterns

Number of Pub/Sub patterns

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

keyspace_hits_perc

Hit Rate

Ratio of the number of Redis cache hits to the number of lookups. Calculation: keyspace_hits/(keyspace_hits + keyspace_misses)

If no read command is performed within a monitoring period, the ratio is 0.

0–100

%

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

command_max_delay

Maximum Command Latency

Maximum latency of commands

≥ 0

ms

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

is_slow_log_exist

Slow Query Logs

Existence of slow query logs in the node

Slow queries caused by the MIGRATE, SLAVEOF, CONFIG, BGSAVE, and BGREWRITEAOF commands are not counted.

• 1: yes
• 0: no

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

keys

Keys

Number of keys in Redis

≥ 0

N/A

N/A

Data node (master/standby, read/write splitting, and cluster Redis instances)

1 minute

sadd

SADD

Number of SADD commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

smembers

SMEMBERS

Number of SMEMBERS commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

ms_repl_offset

Replication Gap

Data synchronization gap between the master and the replica

-

Byte

1024(IEC)

Data nodes (standby nodes of master/standby, read/write splitting, and cluster instances)

1 minute

del

DEL

Number of DEL commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

expire

EXPIRE

Number of EXPIRE commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

get

GET

Number of GET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

hdel

HDEL

Number of HDEL commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

hget

HGET

Number of HGET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

hmget

HMGET

Number of HMGET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

hmset

HMSET

Number of HMSET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby and cluster instances)

1 minute

hset

HSET

Number of HSET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

mget

MGET

Number of MGET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

mset

MSET

Number of MSET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

set

SET

Number of SET commands processed per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

rx_controlled

Flow Control Times

Number of times that client requests are controlled in a period. This metric is incremented by 1 each time a client request is controlled.

If the value is greater than 0, the consumed bandwidth exceeds the upper limit and flow control is triggered on a node. The node suspends client commands temporarily.

≥ 0

Count

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

bandwidth_usage

Bandwidth Usage

Percentage of the used bandwidth to the maximum bandwidth limit

0-200

%

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

connections_usage

Connection Usage

Percentage of the current number of connections to the maximum allowed number of connections

0–100

%

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

command_max_rt

Maximum Latency

Maximum delay from when the node receives commands to when it responds

≥ 0

μs

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

command_avg_rt

Average Latency

Average delay from when the node receives commands to when it responds

≥ 0

μs

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

sync_full

Full Sync Times

Total number of full synchronizations since the Redis Server last started

≥ 0

N/A

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

slow_log_counts

Slow Queries

Number of times that slow queries occur within a monitoring period

≥ 0

count

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

scan

SCAN

Number of SCAN operations per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

setex

SETEX

Number of SETEX operations per second

0–500,000

Count/s

N/A

Data nodes (master/standby, read/write splitting, and cluster instances)

1 minute

node_status

Proxy Status

Indication of whether the proxy is normal.

• 0: Normal
• 1: Abnormal

N/A

N/A

Proxies

1 minute

cpu_usage

CPU Usage

The monitored object's maximum CPU usage among multiple sampling values in a monitoring period

0–100

%

N/A

Proxies

1 minute

cpu_avg_usage

Average CPU Usage

The monitored object's average CPU usage of multiple sampling values in a monitoring period

0–100

%

N/A

Proxies

1 minute

memory_usage

Memory Usage

Memory consumed by the monitored object

0–100

%

N/A

Proxies

1 minute

connected_clients

Connected Clients

Number of connected clients. Includes connections established for system monitoring, configuration synchronization, and services.

≥ 0

N/A

N/A

Proxies

1 minute

instantaneous_ops

Ops per Second

Number of commands processed per second

≥ 0

N/A

N/A

Proxies

1 minute

instantaneous_input_kbps

Input Flow

Instantaneous input traffic

≥ 0

KiB/s

1024(IEC)

Proxies

1 minute

instantaneous_output_kbps

Output Flow

Instantaneous output traffic

≥ 0

KiB/s

1024(IEC)

Proxies

1 minute

total_net_input_bytes

Network Input Bytes

Number of bytes received during the monitoring period

≥ 0

byte

1024(IEC)

Proxies

1 minute

total_net_output_bytes

Network Output Bytes

Number of bytes sent during the monitoring period

≥ 0

byte

1024(IEC)

Proxies

1 minute

connections_usage

Connection Usage

Percentage of the current number of connections to the maximum allowed number of connections

0–100

%

N/A

Proxies

1 minute

command_max_rt

Maximum Latency

Maximum delay from when the node receives commands to when it responds

≥ 0

μs

N/A

Proxies

1 minute

command_avg_rt

Average Latency

Average delay from when the node receives commands to when it responds

≥ 0

μs

N/A

Proxies

1 minute

dcs_instance_id

DCS Redis instance

dcs_cluster_redis_node

Redis Server

dcs_cluster_proxy2_node

Proxies