Help Center/ Distributed Cache Service/ User Guide/ Viewing Monitoring Metrics and Configuring Alarms/ DCS Monitoring Metrics
Updated on 2026-08-27 GMT+08:00
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DCS Monitoring Metrics

Description

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 API Overview to query the DCS metrics and alarms.

Cloud Eye can monitor dimensions nested to a maximum depth of four levels (levels 0 to 3). 3 is the deepest level. For example, if the monitored dimension of a metric is dcs_instance_id,dcs_cluster_redis_node, dcs_instance_id indicates level 0 and dcs_cluster_redis_node indicates level 1.

Table 1 lists the monitoring dimensions for different instance types.

Table 1 Monitoring dimensions for different instance types

Instance Type

Instance Monitoring

Data Node Monitoring

Proxy Node Monitoring

Single-node

Supported

Only instance-level monitoring metrics are supported, as instance monitoring is identical to data node monitoring.

N/A

N/A

Master/Standby

Supported

The master node is monitored.

Supported

Both the master and standby nodes are monitored.

N/A

Read/Write splitting

Supported

The master node is monitored.

Supported

Both the master and standby nodes are monitored.

Supported

Each proxy node on the instance is monitored.

Proxy Cluster

Supported

The monitoring data of all master nodes in the cluster is aggregated.

Supported

Each shard is monitored.

Supported

Each proxy node in the cluster is monitored.

Cluster

Supported

The monitoring data of all master nodes in the cluster is aggregated.

Supported

Each shard is monitored.

N/A

Namespace

SYS.DCS

Metric Category

The metrics can be categorized as follows:

Monitoring Metrics for DCS Redis 3.0 Instances

  • DCS Redis 3.0 has been discontinued and is no longer sold. You can use DCS Redis 5.0 or later.
  • Dimensions lists the metric dimensions.
Table 2 Metrics supported by 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.

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 proxy nodes.

0–100

%

N/A

dcs_instance_id

1 minute

memory_usage

Memory Usage

The monitored object's memory usage (excluding the reserved memory).

0–100

%

N/A

dcs_instance_id

1 minute

net_in_throughput

Network Input Throughput

Average inbound traffic per second on the network port.

≥ 0

Byte/s

1024 (IEC)

dcs_instance_id

1 minute

net_out_throughput

Network Output Throughput

Average outbound traffic per second on the network port.

≥ 0

Byte/s

1024 (IEC)

dcs_instance_id

1 minute

connected_clients

Connected Clients

Number of connected clients, including system monitoring, configuration synchronization, and service-related connections.

≥ 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 in the memory used by the DCS Redis instance.

≥ 0

Byte

1024 (IEC)

dcs_instance_id

1 minute

used_memory_rss

Used Memory RSS

Resident set size (RSS) memory that the DCS Redis instance has used, that is, the memory bytes that actually reside in the memory. It includes all heap memory but not the 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 Lua Memory

Number of bytes in the memory used by the Lua engine.

≥ 0

Byte

1024 (IEC)

dcs_instance_id

1 minute

memory_frag_ratio

Memory Fragmentation Ratio

Current memory fragmentation ratio, calculated as used_memory_rss/used_memory.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

total_connections_received

New Connections

Number of new connections in a monitoring period.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

total_commands_processed

Commands Processed

Number of commands processed in a 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 in a monitoring period.

≥ 0

Byte

1024 (IEC)

dcs_instance_id

1 minute

total_net_output_bytes

Network Output Bytes

Number of bytes sent in a 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 rejected because the number of connections exceeds the value of maxclients in a 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 in a monitoring period.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

evicted_keys

Evicted Keys

Number of keys that have been evicted due to insufficient memory in a monitoring period.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

keyspace_hits

Keyspace Hits

Number of query hits in the main dictionary in a monitoring period.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

keyspace_misses

Keyspace Misses

Number of query misses in the main dictionary in a 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

Percentage of Redis cache hits, calculated as 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 executed on the instance.

≥ 0

ms

N/A

dcs_instance_id

1 minute

auth_errors

Authentication Failures

Number of authentication failures of the instance.

This metric is supported only by single-node and master/standby instances.

≥ 0

Count

N/A

dcs_instance_id

1 minute

is_slow_log_exist

Slow Query Logs

Whether the instance has slow query logs.

This metric does not collect statistics on slow query logs caused by the migrate, slaveof, config, bgsave, and bgrewriteaof commands.

This metric is supported only by single-node and master/standby instances.
  • 1: The instance has slow query logs.
  • 0: The instance does not have slow query logs.

N/A

N/A

dcs_instance_id

1 minute

keys

Keys

Number of keys in the Redis cache.

This metric is supported only by single-node and master/standby instances.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

Monitoring Metrics for DCS Redis 4.0 Instances and Later

  • Dimensions lists the metric dimensions.
  • Instance monitoring data is the aggregated master node data.
  • Some instance monitoring metrics are aggregated from the master and replica nodes. For details, see the metric description in Table 3.
Table 3 Metrics supported by DCS Redis 4.0 instances and later

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_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.

0–100

%

N/A

dcs_instance_id

1 minute

command_max_delay

Maximum Command Latency

Maximum latency of commands executed on the instance.

≥ 0

ms

N/A

dcs_instance_id

1 minute

total_connections_received

New Connections

Number of new connections in a monitoring period, including connections to replicas and those 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

Whether the instance has slow query logs.

This metric does not collect statistics on slow query logs caused by the migrate, slaveof, config, bgsave, and bgrewriteaof commands.
  • 1: The instance has slow query logs.
  • 0: The instance does not have slow query logs.

N/A

N/A

dcs_instance_id

1 minute

memory_usage

Memory Usage

Memory consumed by the monitored object.

≥ 0

%

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

Percentage of Redis cache hits, calculated as keyspace_hits/(keyspace_hits + keyspace_misses).

This metric aggregates data from the master and replica nodes. If no read command is executed in a single monitoring period, the cache hit rate is 0.

0–100

%

N/A

dcs_instance_id

1 minute

used_memory

Used Memory

Number of bytes in the memory used by the DCS Redis instance.

≥ 0

Byte

1024 (IEC)

dcs_instance_id

1 minute

used_memory_dataset

Used Memory Dataset

Memory that Redis datasets have used.

≥ 0

Byte

1024 (IEC)

dcs_instance_id

1 minute

used_memory_dataset_perc

Used Memory Dataset Ratio

Percentage of the memory that Redis datasets have used to the total memory.

This metric aggregates data 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 DCS Redis instance has used, that is, the memory bytes that actually reside in the memory. It includes all heap memory but not the 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 query misses in the main dictionary in a monitoring period.

This metric aggregates data from the master and replica nodes.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

keys

Keys

Number of keys in the Redis cache.

≥ 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, including system monitoring, configuration synchronization, and service-related connections.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

del

DEL

Number of concurrent DEL operations per second in a monitoring period.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

evicted_keys

Evicted Keys

Number of keys that have been evicted due to insufficient memory in a monitoring period.

This metric aggregates data from the master and replica nodes.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

expire

EXPIRE

Number of concurrent EXPIRE operations per second in a monitoring period.

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 in a monitoring period.

This metric aggregates data from the master node.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

get

GET

Number of concurrent GET operations per second in a monitoring period.

This metric aggregates data from the master and replica nodes.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

hdel

HDEL

Number of concurrent HDEL operations per second in a monitoring period.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

hget

HGET

Number of concurrent HGET operations per second in a monitoring period.

This metric aggregates data from the master and replica nodes.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

hmget

HMGET

Number of concurrent HMGET operations per second in a monitoring period.

This metric aggregates data from the master and replica nodes.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

hmset

HMSET

Number of concurrent HMSET operations per second in a monitoring period.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

hset

HSET

Number of concurrent HSET operations per second in a monitoring period.

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 ratio.

≥ 0

N/A

N/A

dcs_instance_id

1 minute

mget

MGET

Number of concurrent MGET operations per second in a monitoring period.

This metric aggregates data from the master and replica nodes.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

mset

MSET

Number of concurrent MSET operations per second in a monitoring period.

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 concurrent SET operations per second in a monitoring period.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

used_memory_lua

Used Lua Memory

Number of bytes in the memory 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 concurrent SADD operations per second in a monitoring period.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

smembers

Smembers

Number of concurrent SMEMBERS operations per second in a monitoring period.

This metric aggregates data from the master and replica nodes.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

scan

SCAN

Number of concurrent SCAN operations per second in a monitoring period.

0–500,000

Count/s

N/A

dcs_instance_id

1 minute

setex

SETEX

Number of concurrent SETEX operations per second in a monitoring period.

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 monitoring period. This metric value is incremented by 1 each time a client request is controlled.

If the value is greater than 0, the consumed bandwidth exceeds the maximum bandwidth and flow control is triggered. The node where flow control occurs will temporarily stop processing commands from the client to control the traffic.

≥ 0

Count

N/A

dcs_instance_id

1 minute

bandwidth_usage

Bandwidth Usage

Percentage of the current bandwidth to the maximum bandwidth.

0–200

%

N/A

dcs_instance_id

1 minute

command_max_rt

Maximum Latency

Maximum latency from the time when a node receives a command to the time when the node responds.

This metric is supported only by single-node instances.

≥ 0

μs

N/A

dcs_instance_id

1 minute

command_avg_rt

Average Latency

Average latency from the time when a node receives a command to the time when the node responds.

This metric is supported only by single-node instances.

≥ 0

μs

N/A

dcs_instance_id

1 minute

used_storage

Used Storage Space

Storage space that has been used.

This metric is supported only by Enterprise (storage) Edition instances.

≥ 0

Byte

1024 (IEC)

dcs_instance_id

1 minute

storage_usage

Storage Usage

Percentage of used storage.

This metric is supported only by Enterprise (storage) Edition instances.

0–100

%

N/A

dcs_instance_id

1 minute

memory_max_usage

Maximum Memory Usage

Maximum memory usage of instance nodes or replicas.

0–100

%

N/A

dcs_instance_id

1 minute

command_p99_rt

P99 Latency

99th percentile of the execution latency.

This metric is supported only by Proxy Cluster and read/write splitting instances.

≥ 0

ms

N/A

dcs_instance_id

1 minute

read_commands

Read Requests

Number of read commands executed per second.

≥ 0

Count/s

N/A

dcs_instance_id

1 minute

write_commands

Write Requests

Number of write commands executed per second.

≥ 0

Count/s

N/A

dcs_instance_id

1 minute

read_command_avg_rt

Average Read Latency

Average execution latency of read commands.

≥ 0

μs

N/A

dcs_instance_id

1 minute

write_command_avg_rt

Average Write Latency

Average execution latency of write commands.

≥ 0

μs

N/A

dcs_instance_id

1 minute

connections_usage

Connection Usage

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

≥ 0

%

N/A

dcs_instance_id

1 minute

get_max_rt

Maximum GET Latency

Maximum latency of GET operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

get_p99_rt

P99 GET Latency

P99 latency of GET operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

get_avg_rt

Average GET Latency

Average latency of GET operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

ping

PING

Number of concurrent PING operations per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_instance_id

1 minute

ping_max_rt

Maximum PING Latency

Maximum latency of PING operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

ping_p99_rt

P99 PING Latency

P99 latency of PING operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

ping_avg_rt

Average PING Latency

Average latency of PING operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

auth

AUTH

Number of concurrent AUTH operations per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_instance_id

1 minute

auth_max_rt

Maximum AUTH Latency

Maximum latency of AUTH operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

auth_p99_rt

P99 AUTH Latency

P99 latency of AUTH operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

auth_avg_rt

Average AUTH Latency

Average latency of AUTH operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

setex_max_rt

Maximum SETEX Latency

Maximum latency of SETEX operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

setex_p99_rt

P99 SETEX Latency

P99 latency of SETEX operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

setex_avg_rt

Average SETEX Latency

Average latency of SETEX operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

del_max_rt

Maximum DEL Latency

Maximum latency of DEL operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

del_p99_rt

P99 DEL Latency

P99 latency of DEL operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

del_avg_rt

Average DEL Latency

Average latency of DEL operations in a monitoring period.

≥ 0

µs

N/A

dcs_instance_id

1 minute

total_big_requests_per_sec

Oversized Requests

Number of requests larger than 32 KB per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_instance_id

1 minute

total_redis_error

Execution Errors

Number of command execution errors in a monitoring period.

≥ 0

Count/s

N/A

dcs_instance_id

1 minute

Monitoring Metrics for Data Nodes of DCS Redis Instances

  • Master/Standby, read/write splitting, and Cluster instances support data node monitoring. You can view the monitoring metrics of each node on an instance.
  • Dimensions lists the metric dimensions.
Table 4 Metrics supported by data nodes on an instance

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.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–100

%

N/A

dcs_cluster_redis_node

1 minute

memory_usage

Memory Usage

Memory consumed by the monitored object.

After the master and replica nodes run for a long time, the management memory of each key may be slightly different. It is normal that the memory metrics of the master and replica nodes are different.

≥ 0

%

N/A

dcs_cluster_redis_node

1 minute

connected_clients

Connected Clients

Number of connected clients, including system monitoring, configuration synchronization, and service-related connections.

≥ 0

N/A

N/A

dcs_cluster_redis_node

1 minute

client_longest_out_list

Client Longest Output List

Longest output list among all current client connections.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 3.0 and 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.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 3.0 and 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

Number of bytes in the memory used by the DCS Redis instance.

After the master and replica nodes run for a long time, the management memory of each key may be slightly different. It is normal that the memory metrics of the master and replica nodes are different.

≥ 0

Byte

1024 (IEC)

dcs_cluster_redis_node

1 minute

used_memory_rss

Used Memory RSS

Resident set size (RSS) memory that the DCS Redis instance has used, that is, the memory bytes that actually reside in the memory. It includes all heap memory but not the 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 Lua Memory

Number of bytes in the memory used by the Lua engine.

≥ 0

Byte

1024 (IEC)

dcs_cluster_redis_node

1 minute

memory_frag_ratio

Memory Fragmentation Ratio

Current memory fragmentation ratio, calculated as used_memory_rss/used_memory.

≥ 0

N/A

N/A

dcs_cluster_redis_node

1 minute

total_connections_received

New Connections

Number of new connections in a monitoring period, including connections to replicas and those 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 in a 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 in a monitoring period.

≥ 0

Byte

1024 (IEC)

dcs_cluster_redis_node

1 minute

total_net_output_bytes

Network Output Bytes

Number of bytes sent in a 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 rejected because the number of connections exceeds the value of maxclients in a 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 in a monitoring period.

≥ 0

N/A

N/A

dcs_cluster_redis_node

1 minute

evicted_keys

Evicted Keys

Number of keys that have been evicted due to insufficient memory in a 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

Percentage of Redis cache hits, calculated as keyspace_hits/(keyspace_hits + keyspace_misses).

If no read command is executed in a single monitoring period, the cache hit rate is 0.

0–100

%

N/A

dcs_cluster_redis_node

1 minute

command_max_delay

Maximum Command Latency

Maximum latency of commands executed on a node.

≥ 0

ms

N/A

dcs_cluster_redis_node

1 minute

is_slow_log_exist

Slow Query Logs

Whether the node has slow query logs.

This metric does not collect statistics on slow query logs caused by the migrate, slaveof, config, bgsave, and bgrewriteaof commands.
  • 1: The node has slow query logs.
  • 0: The node does not have slow query logs.

N/A

N/A

dcs_cluster_redis_node

1 minute

keys

Keys

Number of keys in the Redis cache.

≥ 0

N/A

N/A

dcs_cluster_redis_node

1 minute

sadd

SADD

Number of concurrent SADD operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

smembers

SMEMBERS

Number of concurrent SMEMBERS operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

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 replica nodes.

This metric is supported only by the replica nodes of master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

-

Byte

1024 (IEC)

dcs_cluster_redis_node

1 minute

del

DEL

Number of concurrent DEL operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

expire

EXPIRE

Number of concurrent EXPIRE operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

get

GET

Number of concurrent GET operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

hdel

HDEL

Number of concurrent HDEL operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

hget

HGET

Number of concurrent HGET operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

hmget

HMGET

Number of concurrent HMGET operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

hmset

HMSET

Number of concurrent HMSET operations per second in a monitoring period.

This metric is supported only by master/standby and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

hset

HSET

Number of concurrent HSET operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

mget

MGET

Number of concurrent MGET operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

mset

MSET

Number of concurrent MSET operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

set

SET

Number of concurrent SET operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

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 monitoring period. This metric value is incremented by 1 each time a client request is controlled.

If the value is greater than 0, the consumed bandwidth exceeds the maximum bandwidth and flow control is triggered. The node where flow control occurs will temporarily stop processing commands from the client to control the traffic.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 0

Count

N/A

dcs_cluster_redis_node

1 minute

bandwidth_usage

Bandwidth Usage

Percentage of the current bandwidth to the maximum bandwidth.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–200

%

N/A

dcs_cluster_redis_node

1 minute

connections_usage

Connection Usage

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

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–100

%

N/A

dcs_cluster_redis_node

1 minute

command_max_rt

Maximum Latency

Maximum latency from the time when a node receives a command to the time when the node responds.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 0

μs

N/A

dcs_cluster_redis_node

1 minute

command_avg_rt

Average Latency

Average latency from the time when a node receives a command to the time when the node responds.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 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.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 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.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 0

Count

N/A

dcs_cluster_redis_node

1 minute

scan

SCAN

Number of concurrent SCAN operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

setex

SETEX

Number of concurrent SETEX operations per second in a monitoring period.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

0–500,000

Count/s

N/A

dcs_cluster_redis_node

1 minute

used_storage

Used Storage Space

Storage space that has been used.

This metric is supported only by Enterprise (storage) Edition instances of DCS Redis 6.0.

≥ 0

Byte

1024 (IEC)

dcs_cluster_redis_node

1 minute

storage_usage

Storage Usage

Percentage of used storage.

This metric is supported only by Enterprise (storage) Edition instances of DCS Redis 6.0.

0–100

%

N/A

dcs_cluster_redis_node

1 minute

read_commands

Read Requests

Number of read commands executed per second.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 0

Count/s

N/A

dcs_cluster_redis_node

1 minute

write_commands

Write Requests

Number of write commands executed per second.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 0

Count/s

N/A

dcs_cluster_redis_node

1 minute

read_command_avg_rt

Average Read Latency

Average execution latency of read commands.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 0

μs

N/A

dcs_cluster_redis_node

1 minute

write_command_avg_rt

Average Write Latency

Average execution latency of write commands.

This metric is supported only by master/standby, read/write splitting, and Cluster DCS Redis 4.0 instances and later.

≥ 0

μs

N/A

dcs_cluster_redis_node

1 minute

Monitoring Metrics for Proxy Nodes

  • The metrics below are supported by Proxy Cluster and read/write splitting instances.
  • Dimensions lists the metric dimensions.
Table 5 Metrics supported by proxy nodes 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

%

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 NIC of the monitored object per second in a 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 sent by the NIC of the monitored object per second in a monitoring period.

0–10,000,000

Packet/s

N/A

dcs_cluster_proxy_node

1 minute

max_rxkB_per_sec

Maximum Inbound Bandwidth

Maximum volume of data received by the NIC of the monitored object per second.

≥ 0

KiB/s

1024 (IEC)

dcs_cluster_proxy_node

1 minute

max_txkB_per_sec

Maximum Outbound Bandwidth

Maximum volume of data sent by the NIC of the monitored object 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 NIC of the monitored object per second in a 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 sent by the NIC of the monitored object per second in a 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 NIC of the monitored object per second.

≥ 0

KiB/s

1024 (IEC)

dcs_cluster_proxy_node

1 minute

avg_txkB_per_sec

Average Outbound Bandwidth

Average volume of data sent by the NIC of the monitored object per second.

≥ 0

KiB/s

1024 (IEC)

dcs_cluster_proxy_node

1 minute
Table 6 Metrics supported by the proxy nodes on Proxy Cluster and 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

Whether the proxy node 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

%

N/A

dcs_cluster_proxy2_node

1 minute

connected_clients

Connected Clients

Number of connected clients, including system monitoring, configuration synchronization, and service-related connections.

≥ 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 in a monitoring period.

≥ 0

Byte

1024 (IEC)

dcs_cluster_proxy2_node

1 minute

total_net_output_bytes

Network Output Bytes

Number of bytes sent in a 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 number of connections.

0–100

%

N/A

dcs_cluster_proxy2_node

1 minute

command_max_rt

Maximum Latency

Maximum latency from the time when a node receives a command to the time when the node responds.

≥ 0

μs

N/A

dcs_cluster_proxy2_node

1 minute

command_avg_rt

Average Latency

Average latency from the time when a node receives a command to the time when the node responds.

≥ 0

μs

N/A

dcs_cluster_proxy2_node

1 minute

command_p99_rt

P99 Latency

99th percentile of the execution latency.

≥ 0

ms

N/A

dcs_cluster_proxy2_node

1 minute

get

GET

Number of concurrent GET operations per second.

≥ 0

Count/s

N/A

dcs_cluster_proxy2_node

1 minute

get_max_rt

Maximum GET Latency

Maximum latency of GET operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

get_p99_rt

P99 GET Latency

P99 latency of GET operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

get_avg_rt

Average GET Latency

Average latency of GET operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

ping

PING

Number of concurrent PING operations per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_cluster_proxy2_node

1 minute

ping_max_rt

Maximum PING Latency

Maximum latency of PING operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

ping_p99_rt

P99 PING Latency

P99 latency of PING operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

ping_avg_rt

Average PING Latency

Average latency of PING operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

auth

AUTH

Number of concurrent AUTH operations per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_cluster_proxy2_node

1 minute

auth_max_rt

Maximum AUTH Latency

Maximum latency of AUTH operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

auth_p99_rt

P99 AUTH Latency

P99 latency of AUTH operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

auth_avg_rt

Average AUTH Latency

Average latency of AUTH operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

setex

SETEX

Number of concurrent SETEX operations per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_cluster_proxy2_node

1 minute

setex_max_rt

Maximum SETEX Latency

Maximum latency of SETEX operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

setex_p99_rt

P99 SETEX Latency

P99 latency of SETEX operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

setex_avg_rt

Average SETEX Latency

Average latency of SETEX operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

del

DEL

Number of concurrent DEL operations per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_cluster_proxy2_node

1 minute

del_max_rt

Maximum DEL Latency

Maximum latency of DEL operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

del_p99_rt

P99 DEL Latency

P99 latency of DEL operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

del_avg_rt

Average DEL Latency

Average latency of DEL operations in a monitoring period.

≥ 0

µs

N/A

dcs_cluster_proxy2_node

1 minute

total_big_requests_per_sec

Oversized Requests

Number of requests larger than 32 KB per second in a monitoring period.

≥ 0

Count/s

N/A

dcs_cluster_proxy2_node

1 minute

total_redis_error

Execution Errors

Number of command execution errors in a monitoring period.

≥ 0

Count/s

N/A

dcs_cluster_proxy2_node

1 minute

instantaneous_output_usage

Outbound Traffic Usage

The percentage of the current instantaneous outbound traffic to the maximum bandwidth.

≥ 0

%

N/A

dcs_cluster_proxy2_node

1 minute

Monitoring Metrics for DCS Memcached Instances

Dimensions lists the metric dimensions.

Table 7 Metric supported by DCS Memcached 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_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

Average inbound traffic per second on the network port.

≥ 0

Byte/s

1024 (IEC)

dcs_memcached_instance_id

1 minute

net_out_throughput

Network Output Throughput

Average outbound traffic per second on the network port.

≥ 0

Byte/s

1024 (IEC)

dcs_memcached_instance_id

1 minute

mc_connected_clients

Connected Clients

Number of connected clients (excluding those from replica nodes).

≥ 0

N/A

N/A

dcs_memcached_instance_id

1 minute

mc_used_memory

Used Memory

Number of bytes used in memory.

≥ 0

Byte

1024 (IEC)

dcs_memcached_instance_id

1 minute

mc_used_memory_rss

Used Memory RSS

Resident set size (RSS) memory that the instance has used, that is, the memory bytes that actually reside in the memory. It includes all heap memory but not the 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

Current memory fragmentation ratio, calculated as used_memory_rss/used_memory.

≥ 0

N/A

N/A

dcs_memcached_instance_id

1 minute

mc_connections_received

New Connections

Number of new connections in a monitoring period.

≥ 0

N/A

N/A

dcs_memcached_instance_id

1 minute

mc_commands_processed

Commands Processed

Number of commands processed in a 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 in a monitoring period.

≥ 0

Byte

1024 (IEC)

dcs_memcached_instance_id

1 minute

mc_net_output_bytes

Network Output Bytes

Number of bytes sent in a 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 rejected because the number of connections exceeds the value of maxclients in a 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 in a 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 due to insufficient memory in a 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 flush requests.

≥ 0

N/A

N/A

dcs_memcached_instance_id

1 minute

mc_cmd_touch

Number of Touch Requests

Number of received requests for changing 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 data retrieval failures due to the absence of keys.

≥ 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 data deletion failures due to the absence of keys.

≥ 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 increment failures due to the absence of keys.

≥ 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 decrement failures due to the absence of keys.

≥ 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 CAS failures due to the absence of keys.

≥ 0

N/A

N/A

dcs_memcached_instance_id

1 minute

mc_cas_badval

Number of CAS Values Not Matched

Number of CAS failures 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 times that the data validity period is successfully changed.

≥ 0

N/A

N/A

dcs_memcached_instance_id

1 minute

mc_touch_misses

Number of Touch Misses

Number of times that the data validity period fails to be changed due to the absence of keys.

≥ 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 authentication failures.

≥ 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

Whether the instance has slow query logs.

This metric does not collect statistics on slow query logs caused by the migrate, slaveof, config, bgsave, and bgrewriteaof commands.
  • 1: The instance has slow query logs.
  • 0: The instance does not have slow query logs.

N/A

N/A

dcs_memcached_instance_id

1 minute

mc_keyspace_hits_perc

Hit Rate

Percentage of the cache hits to the number of instance lookups.

0–100

%

N/A

dcs_memcached_instance_id

1 minute

If an object has multiple dimension levels, you need to specify the dimension levels when you use an API to query the metrics of this object.

For example, if you want to query the maximum CPU usage (cpu_usage) of a DCS data node, the dimension of this metric is dcs_instance_id,dcs_cluster_redis_node, where dcs_instance_id indicates level 0 and dcs_cluster_redis_node indicates level 1.
  • To query this metric by calling an API, specify the dcs_cluster_redis_node dimension 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 descriptions in Dimensions.

  • To query multiple metrics by calling an API, specify the dcs_cluster_redis_node dimension 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 descriptions in Dimensions.

Dimensions

Key

Value

dcs_instance_id

DCS Redis instance ID, for example, ca3c18f7-xxxx-xxxx-xxxx-76140724f2e4.

The value of this parameter can be obtained from the instance_id parameter in the response of the Querying All DCS Instances API.

dcs_cluster_redis_node

Data node ID, for example, b6258192xxxxxxxxx380a60c01f6.

The value of this parameter can be obtained from the logical_node_id parameter in the response of the Querying Instance Nodes API.

dcs_cluster_proxy_node

Proxy node ID of a DCS Redis 3.0 instance, for example, a95f06b5xxxxxxee209a8a5ba.

DCS Redis 3.0 instances are no longer available. To obtain the value, contact the customer service.

dcs_cluster_proxy2_node

Proxy node ID of a DCS Redis 4.0 instance or later , for example, ff8080819axxxxxxxxb97ba16ae4.

The value of this parameter can be obtained from the logical_node_id parameter in the response of the Querying Instance Nodes API.

dcs_memcached_instance_id

Memcached instance ID, for example, f987f2d6-xxxx-xxxx-xxxx-e3c49341f014.

The value of this parameter can be obtained from the instance_id parameter in the response of the Querying All DCS Instances API.

Helpful Links

Parent Topic: Viewing Monitoring Metrics and Configuring Alarms