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Updated on 2025-11-05 GMT+08:00

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DCS Metrics

Introduction

This section describes DCS metrics reported to Cloud Eye as well as their namespaces and dimensions. You can use the Cloud Eye console or call APIs to query the DCS metrics and alarms.

Cloud Eye supports up to 4 hierarchical dimensions, numbered from 0, with 3 as the deepest. For example, if the metric dimension is dcs_instance_id,dcs_cluster_redis_node, then dcs_instance_id is level 0 and dcs_cluster_redis_node is level 1.

Table 1 compares instance metrics.

**Table 1** Monitoring dimensions for different instance types
Instance Type	Instance Monitoring	Redis Server Monitoring	Proxy Monitoring
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

Namespace

SYS.DCS

DCS Redis 3.0 Instance Metrics

DCS for Redis 3.0 is no longer provided. You can use DCS for Redis 5.0 or later instead.
Dimensions lists the metric dimensions.

**Table 2** DCS Redis 3.0 instance metrics
Metric ID	Metric Name	Metric Description	Value Range	Unit	Conversion Rule	Dimension	Monitoring Period (Raw Data)
cpu_usage	Maximum CPU usage	The monitored object's maximum CPU usage among multiple sampling values in a monitoring period For a single-node or master/standby instance, this metric indicates the CPU usage of the master node. For a Proxy Cluster instance, this metric indicates the average value of all proxies.	0–100	%	N/A	dcs_instance_id	1 minute
memory_usage	Memory Usage	The monitored object's memory usage (the reserved memory excluded)	0–100	%	N/A	dcs_instance_id	1 minute
net_in_throughput	Network Input Throughput	Inbound throughput per second on a port	≥ 0	byte/s	1024(IEC)	dcs_instance_id	1 minute
net_out_throughput	Network Output Throughput	Outbound throughput per second on a port	≥ 0	byte/s	1024(IEC)	dcs_instance_id	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_instance_id	1 minute
client_longest_out_list	Client Longest Output List	Longest output list among current client connections	≥ 0	N/A	N/A	dcs_instance_id	1 minute
client_biggest_in_buf	Client Biggest Input Buf	Maximum input data length among current client connections	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
blocked_clients	Blocked Clients	Number of clients suspended by block operations such as BLPOP, BRPOP, and BRPOPLPUSH	≥ 0	N/A	N/A	dcs_instance_id	1 minute
used_memory	Used Memory	Number of bytes used by the Redis server	≥ 0	byte	1024(IEC)	dcs_instance_id	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_instance_id	1 minute
used_memory_peak	Used Memory Peak	Peak memory consumed by Redis since the Redis server last started	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
used_memory_lua	Used Memory Lua	Number of bytes used by the Lua engine	≥ 0	byte	1024(IEC)	dcs_instance_id	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	dcs_instance_id	1 minute
total_connections_received	New Connections	Number of connections received during the monitoring period	≥ 0	N/A	N/A	dcs_instance_id	1 minute
total_commands_processed	Commands Processed	Number of commands processed during the monitoring period	≥ 0	N/A	N/A	dcs_instance_id	1 minute
instantaneous_ops	Ops per Second	Number of commands processed per second	≥ 0	N/A	N/A	dcs_instance_id	1 minute
total_net_input_bytes	Network Input Bytes	Number of bytes received during the monitoring period	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
total_net_output_bytes	Network Output Bytes	Number of bytes sent during the monitoring period	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
instantaneous_input_kbps	Input Flow	Instantaneous input traffic	≥ 0	KiB/s	1024(IEC)	dcs_instance_id	1 minute
instantaneous_output_kbps	Output Flow	Instantaneous output traffic	≥ 0	KiB/s	1024(IEC)	dcs_instance_id	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	dcs_instance_id	1 minute
expired_keys	Expired Keys	Number of keys that have expired and been deleted during the monitoring period	≥ 0	N/A	N/A	dcs_instance_id	1 minute
evicted_keys	Evicted Keys	Number of keys that have been evicted and deleted during the monitoring period	≥ 0	N/A	N/A	dcs_instance_id	1 minute
keyspace_hits	Keyspace Hits	Number of successful lookups of keys in the main dictionary during the monitoring period	≥ 0	N/A	N/A	dcs_instance_id	1 minute
keyspace_misses	Keyspace Misses	Number of failed lookups of keys in the main dictionary during the monitoring period	≥ 0	N/A	N/A	dcs_instance_id	1 minute
pubsub_channels	PubSub Channels	Number of Pub/Sub channels	≥ 0	N/A	N/A	dcs_instance_id	1 minute
pubsub_patterns	PubSub Patterns	Number of Pub/Sub patterns	≥ 0	N/A	N/A	dcs_instance_id	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)	0–100	%	N/A	dcs_instance_id	1 minute
command_max_delay	Maximum Command Latency	Maximum latency of commands	≥ 0	ms	N/A	dcs_instance_id	1 minute
auth_errors	Authentication Failures	Number of failed authentications Supported for single-node and master/standby instances.	≥ 0	Count	N/A	dcs_instance_id	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. Supported for single-node and master/standby instances.	1: yes 0: no	N/A	N/A	dcs_instance_id	1 minute
keys	Keys	Number of keys in Redis Supported for single-node and master/standby instances.	≥ 0	N/A	N/A	dcs_instance_id	1 minute

DCS Redis 4.0 and Later Instance Metrics

Dimensions lists the metric dimensions.
The monitoring data is the aggregated master node data.
Some metrics are aggregated from the master and replica nodes. For details, see "Metric Description" in Table 3.

**Table 3** DCS Redis 4.0 and later instance metrics
Metric ID	Metric Name	Metric Description	Value Range	Unit	Conversion Rule	Dimension	Monitoring Period (Raw Data)
cpu_usage	Maximum CPU usage	The monitored object's maximum CPU usage among multiple sampling values in a monitoring period Supported for single-node, master/standby, and read/write splitting instances.	0–100	%	N/A	dcs_instance_id	1 minute
cpu_avg_usage	Average CPU Usage	The monitored object's average CPU usage of multiple sampling values in a monitoring period Supported for single-node, master/standby, and read/write splitting instances.	0–100	%	N/A	dcs_instance_id	1 minute
command_max_delay	Maximum Command Latency	Maximum latency of commands	≥ 0	ms	N/A	dcs_instance_id	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_instance_id	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_instance_id	1 minute
memory_usage	Memory Usage	Memory consumed by the monitored object	0–100	%	N/A	dcs_instance_id	1 minute
expires	Keys With an Expiration	Number of keys with an expiration in Redis	≥ 0	N/A	N/A	dcs_instance_id	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_instance_id	1 minute
used_memory	Used Memory	Total number of bytes used by the Redis server	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
used_memory_dataset	Used Memory Dataset	Dataset memory that the Redis server has used	≥ 0	byte	1024(IEC)	dcs_instance_id	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_instance_id	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_instance_id	1 minute
instantaneous_ops	Ops per Second	Number of commands processed per second	≥ 0	N/A	N/A	dcs_instance_id	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_instance_id	1 minute
keys	Keys	Number of keys in Redis	≥ 0	N/A	N/A	dcs_instance_id	1 minute
blocked_clients	Blocked Clients	Number of clients suspended by block operations	≥ 0	N/A	N/A	dcs_instance_id	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_instance_id	1 minute
del	DEL	Number of DEL commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	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_instance_id	1 minute
expire	EXPIRE	Number of EXPIRE commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	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_instance_id	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_instance_id	1 minute
hdel	HDEL	Number of HDEL commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	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_instance_id	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_instance_id	1 minute
hmset	HMSET	Number of HMSET commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	1 minute
hset	HSET	Number of HSET commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	1 minute
instantaneous_input_kbps	Input Flow	Instantaneous input traffic	≥ 0	KiB/s	1024(IEC)	dcs_instance_id	1 minute
instantaneous_output_kbps	Output Flow	Instantaneous output traffic	≥ 0	KiB/s	1024(IEC)	dcs_instance_id	1 minute
memory_frag_ratio	Memory Fragmentation Ratio	Current memory fragmentation	≥ 0	N/A	N/A	dcs_instance_id	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_instance_id	1 minute
mset	MSET	Number of MSET commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	1 minute
pubsub_channels	PubSub Channels	Number of Pub/Sub channels	≥ 0	N/A	N/A	dcs_instance_id	1 minute
pubsub_patterns	PubSub Patterns	Number of Pub/Sub patterns	≥ 0	N/A	N/A	dcs_instance_id	1 minute
set	SET	Number of SET commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	1 minute
used_memory_lua	Used Memory Lua	Number of bytes used by the Lua engine	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
used_memory_peak	Used Memory Peak	Peak memory consumed by Redis since the Redis server last started	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
sadd	Sadd	Number of SADD commands processed per second	0–500,000	Count/s	N/A	dcs_instance_id	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_instance_id	1 minute
scan	SCAN	Number of SCAN operations per second	0–500,000	Count/s	N/A	dcs_instance_id	1 minute
setex	SETEX	Number of SETEX operations per second	0–500,000	Count/s	N/A	dcs_instance_id	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_instance_id	1 minute
bandwidth_usage	Bandwidth Usage	Percentage of the used bandwidth to the maximum bandwidth limit	0–200	%	N/A	dcs_instance_id	1 minute
command_max_rt	Maximum Latency	Maximum delay from when the node receives commands to when it responds Supported for single-node instances.	≥ 0	μs	N/A	dcs_instance_id	1 minute
command_avg_rt	Average Latency	Average delay from when the node receives commands to when it responds Supported for single-node instances.	≥ 0	μs	N/A	dcs_instance_id	1 minute
used_storage	Used Storage Space	Storage space that has been used. Supported for enterprise (storage) edition instances.	≥ 0	byte	1024(IEC)	dcs_instance_id	1 minute
storage_usage	Storage Usage	Percentage of used storage. Supported for enterprise (storage) edition instances.	0–100	%	N/A	dcs_instance_id	1 minute

Redis Server Metrics of DCS Redis Instances

Data nodes of master/standby, read/write splitting, and cluster DCS Redis instances can be monitored. Monitoring metrics are available for each node.
Dimensions lists the metric dimensions.

**Table 4** Redis Server metrics
Metric ID	Metric Name	Metric Description	Value Range	Unit	Conversion Rule	Dimension	Monitoring Period (Raw Data)
cpu_usage	Maximum CPU usage	The monitored object's maximum CPU usage among multiple sampling values in a monitoring period	0–100	%	N/A	dcs_cluster_redis_node	1 minute
cpu_avg_usage	Average CPU Usage	The monitored object's average CPU usage of multiple sampling values in a monitoring period Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–100	%	N/A	dcs_cluster_redis_node	1 minute
memory_usage	Memory Usage	Memory consumed by the monitored object	0–100	%	N/A	dcs_cluster_redis_node	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_cluster_redis_node	1 minute
client_longest_out_list	Client Longest Output List	Longest output list among current client connections Only supported by master/standby, read/write splitting, and cluster Redis 3.0, 4.0 instances.	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
client_biggest_in_buf	Client Biggest Input Buf	Maximum input data length among current client connections Only supported by master/standby, read/write splitting, and cluster Redis 3.0, 4.0 instances.	≥ 0	byte	1024(IEC)	dcs_cluster_redis_node	1 minute
blocked_clients	Blocked Clients	Number of clients suspended by block operations such as BLPOP, BRPOP, and BRPOPLPUSH	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
used_memory	Used Memory	Total number of bytes used by the Redis server	≥ 0	byte	1024(IEC)	dcs_cluster_redis_node	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)	dcs_cluster_redis_node	1 minute
used_memory_peak	Used Memory Peak	Peak memory consumed by Redis since the Redis server last started	≥ 0	byte	1024(IEC)	dcs_cluster_redis_node	1 minute
used_memory_lua	Used Memory Lua	Number of bytes used by the Lua engine	≥ 0	byte	1024(IEC)	dcs_cluster_redis_node	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	dcs_cluster_redis_node	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_cluster_redis_node	1 minute
total_commands_processed	Commands Processed	Number of commands processed during the monitoring period	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
instantaneous_ops	Ops per Second	Number of commands processed per second	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
total_net_input_bytes	Network Input Bytes	Number of bytes received during the monitoring period	≥ 0	byte	1024(IEC)	dcs_cluster_redis_node	1 minute
total_net_output_bytes	Network Output Bytes	Number of bytes sent during the monitoring period	≥ 0	byte	1024(IEC)	dcs_cluster_redis_node	1 minute
instantaneous_input_kbps	Input Flow	Instantaneous input traffic	≥ 0	KiB/s	1024(IEC)	dcs_cluster_redis_node	1 minute
instantaneous_output_kbps	Output Flow	Instantaneous output traffic	≥ 0	KiB/s	1024(IEC)	dcs_cluster_redis_node	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	dcs_cluster_redis_node	1 minute
expired_keys	Expired Keys	Number of keys that have expired and been deleted during the monitoring period	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
evicted_keys	Evicted Keys	Number of keys that have been evicted and deleted during the monitoring period	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
pubsub_channels	PubSub Channels	Number of Pub/Sub channels	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
pubsub_patterns	PubSub Patterns	Number of Pub/Sub patterns	≥ 0	N/A	N/A	dcs_cluster_redis_node	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	dcs_cluster_redis_node	1 minute
command_max_delay	Maximum Command Latency	Maximum latency of commands	≥ 0	ms	N/A	dcs_cluster_redis_node	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	dcs_cluster_redis_node	1 minute
keys	Keys	Number of keys in Redis	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
sadd	SADD	Number of SADD commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
smembers	SMEMBERS	Number of SMEMBERS commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
ms_repl_offset	Replication Gap	Data synchronization gap between the master and the replica Supported only by the replica node of master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	-	Byte	1024(IEC)	dcs_cluster_redis_node	1 minute
del	DEL	Number of DEL commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
expire	EXPIRE	Number of EXPIRE commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
get	GET	Number of GET commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
hdel	HDEL	Number of HDEL commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
hget	HGET	Number of HGET commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
hmget	HMGET	Number of HMGET commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
hmset	HMSET	Number of HMSET commands processed per second Supported only by master/standby and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
hset	HSET	Number of HSET commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
mget	MGET	Number of MGET commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
mset	MSET	Number of MSET commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
set	SET	Number of SET commands processed per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	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. Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	≥ 0	Count	N/A	dcs_cluster_redis_node	1 minute
bandwidth_usage	Bandwidth Usage	Percentage of the used bandwidth to the maximum bandwidth limit Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–200	%	N/A	dcs_cluster_redis_node	1 minute
connections_usage	Connection Usage	Percentage of the current number of connections to the maximum allowed number of connections Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–100	%	N/A	dcs_cluster_redis_node	1 minute
command_max_rt	Maximum Latency	Maximum delay from when the node receives commands to when it responds Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	≥ 0	μs	N/A	dcs_cluster_redis_node	1 minute
command_avg_rt	Average Latency	Average delay from when the node receives commands to when it responds Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	≥ 0	μs	N/A	dcs_cluster_redis_node	1 minute
sync_full	Full Sync Times	Total number of full synchronizations since the Redis Server last started Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	≥ 0	N/A	N/A	dcs_cluster_redis_node	1 minute
slow_log_counts	Slow Queries	Number of times that slow queries occur within a monitoring period Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	≥ 0	count	N/A	dcs_cluster_redis_node	1 minute
scan	SCAN	Number of SCAN operations per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
setex	SETEX	Number of SETEX operations per second Supported only by master/standby, read/write splitting, and cluster DCS Redis 4.0 and later instances.	0–500,000	Count/s	N/A	dcs_cluster_redis_node	1 minute
used_storage	Used Storage Space	Storage space that has been used. Supported only by Redis 6.0 enterprise (storage) edition instances.	≥ 0	byte	1024(IEC)	dcs_cluster_redis_node	1 minute
storage_usage	Storage Usage	Percentage of used storage. Supported only by Redis 6.0 enterprise (storage) edition instances.	0–100	%	N/A	dcs_cluster_redis_node	1 minute

Proxy Metrics

These metrics are supported by Proxy Cluster and read/write splitting instances.
Dimensions lists the metric dimensions.

**Table 5** Proxy metrics of Proxy Cluster DCS Redis 3.0 instances
Metric ID	Metric Name	Metric Description	Value Range	Unit	Conversion Rule	Dimension	Monitoring Period (Raw Data)
cpu_usage	Maximum CPU usage	The monitored object's maximum CPU usage among multiple sampling values in a monitoring period	0–100	%	N/A	dcs_cluster_proxy_node	1 minute
memory_usage	Memory Usage	Memory consumed by the monitored object	0–100	%	N/A	dcs_cluster_proxy_node	1 minute
p_connected_clients	Connected Clients	Number of connected clients	≥ 0	N/A	N/A	dcs_cluster_proxy_node	1 minute
max_rxpck_per_sec	Max. NIC Data Packet Receive Rate	Maximum number of data packets received by the proxy NIC per second during the monitoring period	0–10,000,000	Packet/s	N/A	dcs_cluster_proxy_node	1 minute
max_txpck_per_sec	Max. NIC Data Packet Transmit Rate	Maximum number of data packets transmitted by the proxy NIC per second during the monitoring period	0–10,000,000	Packet/s	N/A	dcs_cluster_proxy_node	1 minute
max_rxkB_per_sec	Maximum Inbound Bandwidth	Largest volume of data received by the proxy NIC per second	>= 0	KiB/s	1024(IEC)	dcs_cluster_proxy_node	1 minute
max_txkB_per_sec	Maximum Outbound Bandwidth	Largest volume of data transmitted by the proxy NIC per second	>= 0	KiB/s	1024(IEC)	dcs_cluster_proxy_node	1 minute
avg_rxpck_per_sec	Average NIC Data Packet Receive Rate	Average number of data packets received by the proxy NIC per second during the monitoring period	0–10,000,000	Packet/s	N/A	dcs_cluster_proxy_node	1 minute
avg_txpck_per_sec	Average NIC Data Packet Transmit Rate	Average number of data packets transmitted by the proxy NIC per second during the monitoring period	0–10,000,000	Packet/s	N/A	dcs_cluster_proxy_node	1 minute
avg_rxkB_per_sec	Average Inbound Bandwidth	Average volume of data received by the proxy NIC per second	>= 0	KiB/s	1024(IEC)	dcs_cluster_proxy_node	1 minute
avg_txkB_per_sec	Average Outbound Bandwidth	Average volume of data transmitted by the proxy NIC per second	>= 0	KiB/s	1024(IEC)	dcs_cluster_proxy_node	1 minute

**Table 6** Proxy metrics of Proxy Cluster or read/write splitting DCS Redis 4.0/5.0/6.0 instances
Metric ID	Metric Name	Metric Description	Value Range	Unit	Conversion Rule	Dimension	Monitoring Period (Raw Data)
node_status	Proxy Status	Indication of whether the proxy is normal.	0: Normal 1: Abnormal	N/A	N/A	dcs_cluster_proxy2_node	1 minute
cpu_usage	Maximum CPU usage	The monitored object's maximum CPU usage among multiple sampling values in a monitoring period	0–100	%	N/A	dcs_cluster_proxy2_node	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	dcs_cluster_proxy2_node	1 minute
memory_usage	Memory Usage	Memory consumed by the monitored object	0–100	%	N/A	dcs_cluster_proxy2_node	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_cluster_proxy2_node	1 minute
instantaneous_ops	Ops per Second	Number of commands processed per second	≥ 0	N/A	N/A	dcs_cluster_proxy2_node	1 minute
instantaneous_input_kbps	Input Flow	Instantaneous input traffic	≥ 0	KiB/s	1024(IEC)	dcs_cluster_proxy2_node	1 minute
instantaneous_output_kbps	Output Flow	Instantaneous output traffic	≥ 0	KiB/s	1024(IEC)	dcs_cluster_proxy2_node	1 minute
total_net_input_bytes	Network Input Bytes	Number of bytes received during the monitoring period	≥ 0	byte	1024(IEC)	dcs_cluster_proxy2_node	1 minute
total_net_output_bytes	Network Output Bytes	Number of bytes sent during the monitoring period	≥ 0	byte	1024(IEC)	dcs_cluster_proxy2_node	1 minute
connections_usage	Connection Usage	Percentage of the current number of connections to the maximum allowed number of connections	0–100	%	N/A	dcs_cluster_proxy2_node	1 minute
command_max_rt	Maximum Latency	Maximum delay from when the node receives commands to when it responds	≥ 0	μs	N/A	dcs_cluster_proxy2_node	1 minute
command_avg_rt	Average Latency	Average delay from when the node receives commands to when it responds	≥ 0	μs	N/A	dcs_cluster_proxy2_node	1 minute

DCS Memcached Instance Metrics

Dimensions lists the metric dimensions.

**Table 7** DCS Memcached instance metrics
Metric ID	Metric Name	Metric Description	Value Range	Unit	Conversion Rule	Dimension	Monitoring Period (Raw Data)
cpu_usage	Maximum CPU usage	The monitored object's maximum CPU usage among multiple sampling values in a monitoring period	0–100	%	N/A	dcs_memcached_instance_id	1 minute
memory_usage	Memory Usage	Memory consumed by the monitored object	0–100	%	N/A	dcs_memcached_instance_id	1 minute
net_in_throughput	Network Input Throughput	Inbound throughput per second on a port	>= 0	byte/s	1024(IEC)	dcs_memcached_instance_id	1 minute
net_out_throughput	Network Output Throughput	Outbound throughput per second on a port	>= 0	byte/s	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_connected_clients	Connected Clients	Number of connected clients (excluding those from slave nodes)	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_used_memory	Used Memory	Number of bytes used by Memcached	≥ 0	byte	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_used_memory_rss	Used Memory RSS	RSS memory used that actually resides in the memory, including all stack and heap memory but not swapped-out memory	≥ 0	byte	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_used_memory_peak	Used Memory Peak	Peak memory consumed since the server last started	≥ 0	byte	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_memory_frag_ratio	Memory Fragmentation Ratio	Ratio between Used Memory RSS and Used Memory	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_connections_received	New Connections	Number of connections received during the monitoring period	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_commands_processed	Commands Processed	Number of commands processed during the monitoring period	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_instantaneous_ops	Ops per Second	Number of commands processed per second	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_net_input_bytes	Network Input Bytes	Number of bytes received during the monitoring period	≥ 0	byte	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_net_output_bytes	Network Output Bytes	Number of bytes sent during the monitoring period	≥ 0	byte	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_instantaneous_input_kbps	Input Flow	Instantaneous input traffic	≥ 0	KiB/s	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_instantaneous_output_kbps	Output Flow	Instantaneous output traffic	≥ 0	KiB/s	1024(IEC)	dcs_memcached_instance_id	1 minute
mc_rejected_connections	Rejected Connections	Number of connections that have exceeded maxclients and been rejected during the monitoring period	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_expired_keys	Expired Keys	Number of keys that have expired and been deleted during the monitoring period	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_evicted_keys	Evicted Keys	Number of keys that have been evicted and deleted during the monitoring period	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_cmd_get	Number of Retrieval Requests	Number of received data retrieval requests	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_cmd_set	Number of Storage Requests	Number of received data storage requests	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_cmd_flush	Number of Flush Requests	Number of received data clearance requests	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_cmd_touch	Number of Touch Requests	Number of received requests for modifying the validity period of data	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_get_hits	Number of Retrieval Hits	Number of successful data retrieval operations	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_get_misses	Number of Retrieval Misses	Number of failed data retrieval operations due to key nonexistence	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_delete_hits	Number of Delete Hits	Number of successful data deletion operations	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_delete_misses	Number of Delete Misses	Number of failed data deletion operations due to key nonexistence	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_incr_hits	Number of Increment Hits	Number of successful increment operations	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_incr_misses	Number of Increment Misses	Number of failed increment operations due to key nonexistence	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_decr_hits	Number of Decrement Hits	Number of successful decrement operations	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_decr_misses	Number of Decrement Misses	Number of failed decrement operations due to key nonexistence	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_cas_hits	Number of CAS Hits	Number of successful CAS operations	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_cas_misses	Number of CAS Misses	Number of failed CAS operations due to key nonexistence	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_cas_badval	Number of CAS Values Not Matched	Number of failed CAS operations due to CAS value mismatch	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_touch_hits	Number of Touch Hits	Number of successful requests for modifying the validity period of data	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_touch_misses	Number of Touch Misses	Number of failed requests for modifying the validity period of data due to key nonexistence	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_auth_cmds	Authentication Requests	Number of authentication requests	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_auth_errors	Authentication Failures	Number of failed authentication requests	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_curr_items	Number of Items Stored	Number of stored data items	≥ 0	N/A	N/A	dcs_memcached_instance_id	1 minute
mc_command_max_delay	Maximum Command Latency	Maximum latency of commands	≥ 0	ms	N/A	dcs_memcached_instance_id	1 minute
mc_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_memcached_instance_id	1 minute
mc_keyspace_hits_perc	Hit Rate	Ratio of the number of Memcached cache hits to the number of lookups	0–100	%	N/A	dcs_memcached_instance_id	1 minute

If a monitored object has multiple dimensions, the dimensional level of specific metrics is required when you use APIs to query the metrics.

For example, to query the maximum CPU usage (cpu_usage) of a DCS data node, its dimension is "dcs_instance_id,dcs_cluster_redis_node", indicating that dcs_instance_id is numbered 0 and dcs_cluster_redis_node is numbered 1.

To query a single metric by calling the API, the dcs_cluster_redis_node dimension is used as follows:
```
dim.0=dcs_instance_id,ca3c18f7-xxxx-xxxx-xxxx-76140724f2e4&dim.1=dcs_cluster_redis_node,b6258192xxxxxxxxx380a60c01f6
```
ca3c18f7-xxxx-xxxx-xxxx-76140724f2e4 and b6258192xxxxxxxxx380a60c01f6 are the values of dcs_instance_id and dcs_cluster_redis_node, respectively. For details about how to obtain the values, see the obtaining guide in the Dimension table.

To batch query metrics by calling the API, the dcs_cluster_redis_node dimension is used as follows:

"dimensions": [ 
                 { 
                     "name": "dcs_instance_id", 
                     "value": "ca3c18f7-xxxx-xxxx-xxxx-76140724f2e4"    
                 }, 
                 { 
                     "name": "dcs_cluster_redis_node", 
                     "value": "b6258192xxxxxxxxx380a60c01f6" 
                 } 
             ]

ca3c18f7-xxxx-xxxx-xxxx-76140724f2e4 and b6258192xxxxxxxxx380a60c01f6 are the values of dcs_instance_id and dcs_cluster_redis_node, respectively. For details about how to obtain the values, see the obtaining guide in the Dimension table.

Dimensions

Key	Value
dcs_instance_id	Redis instance ID, for example, ca3c18f7-xxxx-xxxx-xxxx-76140724f2e4. To obtain the value, call the Querying All DCS Instances API and extract the value from the response parameter instance_id.
dcs_cluster_redis_node	Data node ID, for example, b6258192xxxxxxxxx380a60c01f6. To obtain the value, call the Querying Instance Nodes API and extract the value from the response parameter logical_node_id.
dcs_cluster_proxy_node	Redis 3.0 proxy ID, for example, a95f06b5xxxxxxee209a8a5ba. Redis 3.0 instances are no longer sold. To obtain the value, contact customer service.
dcs_cluster_proxy2_node	Proxy ID for Redis 4.0 and later, for example, ff8080819axxxxxxxxb97ba16ae4. To obtain the value, call the Querying Instance Nodes API and extract the value from the response parameter logical_node_id.
dcs_memcached_instance_id	Memcached instance ID, for example, f987f2d6-xxxx-xxxx-xxxx-e3c49341f014. To obtain the value, call the Querying All DCS Instances API and extract the value from the response parameter instance_id.

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