- Release Notes and Announcements
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- Assigning Instance to Project
- Editing Instance Tag
- Setting Maintenance Time
- Changing Instance Specification
- Adjusting the Number of Connections
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- Managing Redis Edition Nodes
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- Backup and Restoration
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- Migration Scheme Overview
- Migration with DTS
- Migrating with Redis-Port
- Version Upgrade with DTS
- Check on Migration from Standard Architecture to Cluster Architecture
- Migration Guide for Legacy Cluster Edition
- Pika-to-Redis Data Migration Scheme
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- Common Error Messages
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- Migration with redis-port
- Account and Password (Redis Edition)
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- Global Replication for Redis Edition
- Performance Optimization
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- Development Guidelines
- Command Compatibility
- Troubleshooting
- Practical Tutorial
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Instance APIs
- AddReplicationInstance
- AllocateWanAddress
- ChangeInstanceRole
- ChangeMasterInstance
- CleanUpInstance
- ClearInstance
- CloseSSL
- CreateInstanceAccount
- CreateReplicationGroup
- DeleteInstanceAccount
- DeleteReplicationInstance
- DescribeAutoBackupConfig
- DescribeBandwidthRange
- DescribeInstanceAccount
- DescribeInstanceDTSInfo
- DescribeInstanceZoneInfo
- DescribeInstances
- DescribeProxySlowLog
- DescribeSlowLog
- DescribeTendisSlowLog
- DestroyPostpaidInstance
- DestroyPrepaidInstance
- DisableReplicaReadonly
- EnableReplicaReadonly
- InquiryPriceCreateInstance
- InquiryPriceUpgradeInstance
- KillMasterGroup
- ModifyAutoBackupConfig
- ModifyInstance
- ModifyInstanceAccount
- ModifyInstanceReadOnly
- ModifyMaintenanceWindow
- ModifyNetworkConfig
- OpenSSL
- ReleaseWanAddress
- RenewInstance
- ResetPassword
- StartupInstance
- SwitchProxy
- UpgradeInstanceVersion
- UpgradeProxyVersion
- UpgradeSmallVersion
- UpgradeVersionToMultiAvailabilityZones
- DescribeCommonDBInstances
- ChangeReplicaToMaster
- CloneInstances
- CreateInstances
- DescribeInstanceDealDetail
- DescribeInstanceNodeInfo
- DescribeInstanceShards
- DescribeMaintenanceWindow
- DescribeParamTemplateInfo
- DescribeReplicationGroup
- DescribeSSLStatus
- DescribeTaskInfo
- DescribeTaskList
- ModfiyInstancePassword
- RemoveReplicationInstance
- UpgradeInstance
- DescribeInstanceEvents
- ModifyInstanceAvailabilityZones
- ModifyInstanceEvent
- SwitchAccessNewInstance
- DescribeInstanceSupportFeature
- Parameter Management APIs
- Other APIs
- Region APIs
- Monitoring and Management APIs
- Backup and Restoration APIs
- Data Types
- Error Codes
- FAQs
- Service Agreement
- Glossary
- Contact Us
- Release Notes and Announcements
- User Tutorial
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Operation Overview
- Access Management
- SDK Connection
- Daily Instance Operation
- Viewing Instance Information
- Viewing Memcached Edition Instances
- Assigning Instance to Project
- Editing Instance Tag
- Setting Maintenance Time
- Changing Instance Specification
- Adjusting the Number of Connections
- Enabling/Disabling Read/Write Separation
- Clearing Instances
- Returning and Isolating Instance
- Restoring Isolated Instance
- Eliminating Instance
- Upgrading Redis Edition Instances
- Managing Redis Edition Nodes
- Multi-AZ Deployment Management
- Backup and Restoration
- Data Migration for Redis Edition Instances
- Migration Scheme Overview
- Migration with DTS
- Migrating with Redis-Port
- Version Upgrade with DTS
- Check on Migration from Standard Architecture to Cluster Architecture
- Migration Guide for Legacy Cluster Edition
- Pika-to-Redis Data Migration Scheme
- SSDB-to-Redis Data Migration Scheme
- Common Error Messages
- FAQs
- Migration with redis-port
- Account and Password (Redis Edition)
- Parameter Configuration
- Slow Query
- Network and Security
- Monitoring and Alarms
- Redis Edition Event Management
- Global Replication for Redis Edition
- Performance Optimization
- Sentinel Mode
- Development Guidelines
- Command Compatibility
- Troubleshooting
- Practical Tutorial
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Instance APIs
- AddReplicationInstance
- AllocateWanAddress
- ChangeInstanceRole
- ChangeMasterInstance
- CleanUpInstance
- ClearInstance
- CloseSSL
- CreateInstanceAccount
- CreateReplicationGroup
- DeleteInstanceAccount
- DeleteReplicationInstance
- DescribeAutoBackupConfig
- DescribeBandwidthRange
- DescribeInstanceAccount
- DescribeInstanceDTSInfo
- DescribeInstanceZoneInfo
- DescribeInstances
- DescribeProxySlowLog
- DescribeSlowLog
- DescribeTendisSlowLog
- DestroyPostpaidInstance
- DestroyPrepaidInstance
- DisableReplicaReadonly
- EnableReplicaReadonly
- InquiryPriceCreateInstance
- InquiryPriceUpgradeInstance
- KillMasterGroup
- ModifyAutoBackupConfig
- ModifyInstance
- ModifyInstanceAccount
- ModifyInstanceReadOnly
- ModifyMaintenanceWindow
- ModifyNetworkConfig
- OpenSSL
- ReleaseWanAddress
- RenewInstance
- ResetPassword
- StartupInstance
- SwitchProxy
- UpgradeInstanceVersion
- UpgradeProxyVersion
- UpgradeSmallVersion
- UpgradeVersionToMultiAvailabilityZones
- DescribeCommonDBInstances
- ChangeReplicaToMaster
- CloneInstances
- CreateInstances
- DescribeInstanceDealDetail
- DescribeInstanceNodeInfo
- DescribeInstanceShards
- DescribeMaintenanceWindow
- DescribeParamTemplateInfo
- DescribeReplicationGroup
- DescribeSSLStatus
- DescribeTaskInfo
- DescribeTaskList
- ModfiyInstancePassword
- RemoveReplicationInstance
- UpgradeInstance
- DescribeInstanceEvents
- ModifyInstanceAvailabilityZones
- ModifyInstanceEvent
- SwitchAccessNewInstance
- DescribeInstanceSupportFeature
- Parameter Management APIs
- Other APIs
- Region APIs
- Monitoring and Management APIs
- Backup and Restoration APIs
- Data Types
- Error Codes
- FAQs
- Service Agreement
- Glossary
- Contact Us
CM will discontinue the 1-minute granularity alarm policy for TencentDB for Redis and QCE/REDIS namespace, which will have the following impacts:
You can't receive the alarm notification of TencentDB for Redis Memory Edition (1-minute granularity).
Data can't be displayed on the dashboard of TencentDB for Redis Memory Edition (1-minute granularity).
You can't pull the monitoring data of TencentDB for Redis Memory Edition (1-minute granularity).
Migration Schemes
Alarm policy: You need to migrate the alarm policy of the existing TencentDB for Redis instances with 1-minute monitoring granularity to those with 5-second monitoring granularity. Click to view the mappings of metrics.
Dashboard: You need to migrate the dashboard of the existing TencentDB for Redis instances with 1-minute monitoring granularity to 5-second monitoring granularity. Click to view the mappings of metrics.
Pulling monitoring metric data through APIs: You need to switch QCE/REDIS to QCE/REDIS_MEM, and modify the names of pulled metrics simultaneously.
Because 1-minute monitoring granularity of TencentDB for Redis is not completely the same as the metric names in Mappings of Metrics. This document describes the mappings of monitoring metrics of TencentDB for Redis 1-minute monitoring granularity and 5-second monitoring granularity for you to compare and migrate.
Monitoring Metric Mappings Between 1-Minute and 5-Second Alarm Policy
1-Minute Metric | 1-Minute Metric Parameter | 5-Second Metric | 5-Second Metric Parameter | Unit | Description |
CPU Load | cpu_us_min | CPU Utilization | cpu_util | % | Average CPU utilization |
Max CPU Load | CpuMaxUsMin | Max CPU Utilization of Node | cpu_max_util | % | The maximum CPU utilization of a node (shard or replica) in an instance |
Used Memory | storage_min | Used Memory | mem_used | MB | Actually used memory capacity, including the capacity for data and cache |
Capacity Utilization | storage_us_min | Memory Utilization | mem_util | % | The ratio of the actually used memory to the requested total memory |
Max Capacity Utilization | StorageMaxUsMin | Max Memory Utilization of Node | mem_max_util | % | The maximum among all node (shard or replica) memory utilizations in an instance |
Private Network Inbound Traffic | in_flow_min | Inbound Traffic | in_flow | MB/s | Private network inbound traffic |
Inbound Traffic Utilization | in_flow_us_min | Inbound Traffic Utilization | in_bandwidth_util | % | The ratio of the actually used private inbound traffic to the maximum traffic |
Private Network Outbound Traffic | out_flow_min | Outbound Traffic | out_flow | MB/s | Private network outbound traffic |
Outbound Traffic Utilization | out_flow_us_min | Outbound Traffic Utilization | out_bandwidth_util | % | The ratio of the actually used private outbound traffic to the maximum traffic |
Connections | connections_min | Connections | connections | - | The number of TCP connections to an instance |
Connection Utilization | connections_us_min | Connection Utilization | connections_util | % | The ratio of the number of TCP connections to the maximum number of connections |
Slow Logs | slow_query_min | Slow Logs | cmd_slow | - | The number of command executions with a latency greater than the slowlog-log-slower-than configuration |
Total Keys | keys_min | Total Keys | keys | - | The total number of keys (level-1 keys) in instance storage |
Expired Keys | expired_keys_min | Expired Keys | expired | - | The number of keys expired in a time window, which is equal to the value of expired_keys output by the info command. |
Evicted Keys | evicted_keys_min | Evicted Keys | evicted | - | The number of keys evicted in a time window, which is equal to the value of evicted_keys output by the info command. |
Average Execution Latency | latency_min | Average Execution Latency | latency_avg | ms | The average execution latency between the proxy and the Redis server |
Average Read Latency | latency_get_min | Average Read Latency | latency_read | ms | The average execution latency of read commands between the proxy and the Redis server |
Average Write Latency | latency_set_min | Average Write Latency | latency_write | ms | The average execution latency of write command between the proxy and the Redis server |
Average Latency of Other Commands | latency_other_min | Average Latency of Other Commands | latency_other | ms | The average execution latency of commands (excluding write and read commands) between the proxy and the Redis server |
QPS | qps_min | Total Requests | commands | Counts/sec | Queries per second |
Read Requests | stat_get_min | Read Requests | cmd_read | Counts/sec | The number of read command executions per second |
Write Requests | stat_set_min | Write Requests | cmd_write | Counts/sec | The number of write command executions per second |
Other Requests | stat_other_min | Other Requests | cmd_other | Counts/sec | The number of command (excluding write and read commands) executions per second |
Big Value Requests | big_value_min | Big Value Requests | cmd_big_value | Counts/sec | The number of executions of requests larger than 32 KB per second |
Read Request Hits | stat_success_min | Read Request Hits | cmd_hits | - | The number of keys successfully requested by read commands, which is equal to the value of the keyspace_hits metric output by the info command. |
Read Request Misses | stat_missed_min | Read Request Misses | cmd_miss | - | The number of keys unsuccessfully requested by read commands, which is equal to the value of the keyspace_misses metric output by the info command. |
Execution Errors | cmd_err_min | Execution Errors | cmd_err | - | The number of command execution errors. For example, the command does not exist, parameters are incorrect, etc. |
Read Request Hit Rate | cache_hit_ratio_min | Read Request Hit Rate | cmd_hits_ratio | % | Key hits/(key hits + key misses). This metric can reflect the situation of cache miss. When the access request quantity is 0, the value of this metric will be null. |
Mappings of Monitoring Metrics Between 1-Minute and 5-Second Dashboard
1-Minute Metric | 1-Minute Metric Parameter | 5-Second Metric | 5-Second Metric Parameter | Unit | Description |
CPU Utilization | cpu_us_min | Average CPU utilization | cpu_util | % | Average CPU utilization |
Max CPU Utilization of Shard | cpu_max_us_min | Max CPU Utilization of Node | cpu_max_util | % | The maximum CPU utilization of a node (shard or replica) in an instance |
Used Memory | storage_min | Used Memory | mem_used | MB | Actually used memory capacity, including the capacity for data and cache |
Memory Utilization | storage_us_min | Memory Utilization | mem_util | % | The ratio of the actually used memory to the requested total memory |
Max Memory Utilization of Shard | storage_max_us_min | Max Memory Utilization of Node | mem_max_util | % | The maximum among all node (shard or replica) memory utilizations in an instance |
Inbound Traffic | in_flow_min | Inbound Traffic | in_flow | MB/s | Private network inbound traffic |
Inbound Traffic Utilization | in_flow_us_min | Inbound Traffic Utilization | in_bandwidth_util | % | The ratio of the actually used private inbound traffic to the maximum traffic |
Outbound Traffic | out_flow_min | Outbound Traffic | out_flow | MB/s | Private network outbound traffic |
Outbound Traffic Utilization | out_flow_us_min | Outbound Traffic Utilization | out_bandwidth_util | % | The ratio of the actually used private outbound traffic to the maximum traffic |
Connections | connections_min | Connections | connections | - | The number of TCP connections to an instance |
Connection Utilization | connections_us_min | Connection Utilization | connections_util | % | The ratio of the number of TCP connections to the maximum number of connections |
Slow Logs | slow_query_min | Slow Logs | cmd_slow | - | The number of command executions with a latency greater than the slowlog-log-slower-than configuration |
Total Keys | keys_min | Total Keys | keys | - | The total number of keys (level-1 keys) in instance storage |
Expired Keys | expired_keys_min | Expired Keys | expired | - | The number of keys expired in a time window, which is equal to the value of expired_keys output by the info command. |
Evicted Keys | evicted_keys_min | Evicted Keys | evicted | - | The number of keys evicted in a time window, which is equal to the value of evicted_keys output by the info command. |
Average Execution Latency | latency_min | Average Execution Latency | latency_avg | ms | The average execution latency between the proxy and the Redis server |
Average Read Latency | latency_get_min | Average Read Latency | latency_read | ms | The average execution latency of read commands between the proxy and the Redis server |
Average Write Latency | latency_set_min | Average Write Latency | latency_write | ms | The average execution latency of write command between the proxy and the Redis server |
Average Latency of Other Commands | latency_other_min | Average Latency of Other Commands | latency_other | ms | The average execution latency of commands (excluding write and read commands) between the proxy and the Redis server |
QPS | qps_min | Total Requests | commands | Counts/sec | Queries per second |
Read Requests | stat_get_min | Read Requests | cmd_read | Counts/sec | The number of read command executions per second |
Write Requests | stat_set_min | Write Requests | cmd_write | Counts/sec | The number of write command executions per second |
get Requests | cmdstat_get_min | Other Requests | cmd_other | Counts/sec | The number of command (excluding write and read commands) executions per second |
| | | | getbit Requests | cmdstat_getbit_min |
| | | | getrange Requests | cmdstat_getrange_min |
| | | | hget Requests | cmdstat_hget_min |
| | | | hgetall Requests | cmdstat_hmget_min |
| | | | hmget Requests | cmdstat_hmget_min |
| | | | hmset Requests | cmdstat_hmset_min |
| | | | hset Requests | cmdstat_hset_min |
| | | | hsetnx Requests | cmdstat_hsetnx_min |
| | | | lset Requests | cmdstat_lset_min |
| | | | mget Requests | cmdstat_mget_min |
| | | | mset Requests | cmdstat_mset_min |
| | | | msetnx Requests | cmdstat_msetnx_min |
| | | | set Requests | cmdstat_set_min |
| | | | setbit Requests | cmdstat_setbit_min |
| | | | setex Requests | cmdstat_setex_min |
| | | | setnx Requests | cmdstat_setnx_min |
| | | | setrange Requests | cmdstat_setnx_min |
Big Value Requests | big_value_min | Big Value Requests | cmd_big_value | Counts/sec | The number of executions of requests larger than 32 KB per second |
Read Request Hits | stat_success_min | Read Request Hits | cmd_hits | - | The number of keys successfully requested by read commands, which is equal to the value of the keyspace_hits metric output by the info command. |
Read Request Misses | stat_missed_min | Read Request Misses | cmd_miss | - | The number of keys unsuccessfully requested by read commands, which is equal to the value of the keyspace_misses metric output by the info command. |
Execution Errors | cmd_err_min | Execution Errors | cmd_err | - | The number of command execution errors. For example, the command does not exist, parameters are incorrect, etc. |
Read Request Hit Rate | cache_hit_ratio_min | Read Request Hit Rate | cmd_hits_ratio | % | Key hits/(key hits + key misses). This metric can reflect the situation of cache miss. When the access request quantity is 0, the value of this metric will be null. |
Mappings between 1-minute and 5-second API monitoring metrics
Namespace
1-minute: Namespace=QCE/REDIS
5-second: Namespace=QCE/REDIS_MEM
Monitoring metrics
Instance dimension (standard architecture)
1-Minute Metric | 1-Minute Metric Parameter | 5-Second Metric | 5-Second Metric Parameter | Unit | Description |
CPU Utilization | CpuUsMin | CPU Utilization | CpuUtil | % | Average CPU utilization |
Used Memory | StorageMin | Used Memory | MemUsed | MB | Actually used memory capacity, including the capacity for data and cache |
Memory Utilization | StorageUsMin | Memory Utilization | MemUtil | % | The ratio of the actually used memory to the requested total memory |
Total Keys | KeysMin | Total Keys | Keys | - | The total number of keys (level-1 keys) in instance storage |
Expired Keys | ExpiredKeysMin | Expired Keys | Expired | - | The number of keys expired in a time window, which is equal to the value of expired_keys output by the info command. |
Evicted Keys | EvictedKeysMin | Evicted Keys | Evicted | - | The number of keys evicted in a time window, which is equal to the value of evicted_keys output by the info command. |
Connections | ConnectionsMin | Connections | Connections | - | The number of TCP connections to an instance |
Connection Utilization | ConnectionsUsMin | Connection Utilization | ConnectionsUtil | % | The ratio of the number of TCP connections to the maximum number of connections |
Inbound Traffic | InFlowMin | Inbound Traffic | InFlow | MB/s | Private network inbound traffic |
Inbound Traffic Utilization | InFlowUsMin | Inbound Traffic Utilization | InBandwidthUtil | % | The ratio of the actually used private inbound traffic to the maximum traffic |
Outbound Traffic | OutFlowMin | Outbound Traffic | OutFlow | MB/s | Private network outbound traffic |
Outbound Traffic Utilization | OutFlowUsMin | Outbound Traffic Utilization | OutBandwidthUtil | % | The ratio of the actually used private outbound traffic to the maximum traffic |
Average Execution Latency | LatencyMin | Average Execution Latency | LatencyAvg | ms | The average execution latency between the proxy and the Redis server |
Average Read Latency | LatencyGetMin | Average Read Latency | LatencyRead | ms | The average execution latency of read commands between the proxy and the Redis server |
Average Write Latency | LatencySetMin | Average Write Latency | LatencyWrite | ms | The average execution latency of write command between the proxy and the Redis server |
Average Latency of Other Commands | LatencyOtherMin | Average Latency of Other Commands | LatencyOther | ms | The average execution latency of commands (excluding write and read commands) between the proxy and the Redis server |
Total Requests | QpsMin | Total Requests | Commands | Counts/sec | Queries per second |
Read Requests | StatGetMin | Read Requests | CmdRead | Counts/sec | The number of read command executions per second |
Write Requests | StatSetMin | Write Requests | CmdWrite | Counts/sec | The number of write command executions per second |
Other Requests | StatOtherMin | Other Requests | CmdOther | Counts/sec | The number of command (excluding write and read commands) executions per second |
Big Value Requests | BigValueMin | Big Value Requests | CmdBigValue | Counts/sec | The number of executions of requests larger than 32 KB per second |
Slow Logs | SlowQueryMin | Slow Logs | CmdSlow | - | The number of command executions with a latency greater than the slowlog-log-slower-than configuration |
Read Request Hits | StatSuccessMin | Read Request Hits | CmdHits | - | The number of keys successfully requested by read commands, which is equal to the value of the keyspace_hits metric output by the info command. |
Read Request Misses | StatMissedMin | Read Request Misses | CmdMiss | - | The number of keys unsuccessfully requested by read commands, which is equal to the value of the keyspace_misses metric output by the info command. |
Execution Errors | CmdErrMin | Execution Errors | CmdErr | - | The number of command execution errors. For example, the command does not exist, parameters are incorrect, etc. |
Read Request Hit Rate | CacheHitRatioMin | Read Request Hit Rate | CmdHitsRatio | % | Key hits/(key hits + key misses). This metric can reflect the situation of cache miss. When the access request quantity is 0, the value of this metric will be null. |
Instance dimension (cluster architecture)
1-Minute Metric | 1-Minute Metric Parameter | 5-Second Metric | 5-Second Metric Parameter | Unit | Description |
Average CPU utilization | CpuUsMin | CPU Utilization | CpuUtil | % | Average CPU utilization |
Max CPU Utilization of Shard | CpuMaxUsMin | Max CPU Utilization of Node | CpuMaxUtil | % | The highest CPU utilization value of all shards in a cluster |
Used Memory | StorageMin | Used Memory | MemUsed | MB | Actually used memory capacity, including the capacity for data and cache |
Memory Utilization | StorageUsMin | Memory Utilization | MemUtil | % | The ratio of the actually used memory to the requested total memory |
Max Memory Utilization of Shard | StorageMaxUsMin | Max Memory Utilization of Node | MemMaxUtil | % | The highest memory utilization value of all shards in a cluster |
Total Keys | KeysMin | Total Keys | Keys | - | The total number of keys (level-1 keys) in instance storage |
Expired Keys | ExpiredKeysMin | Expired Keys | Expired | - | The number of keys expired in a time window, which is equal to the value of expired_keys output by the info command. |
Evicted Keys | EvictedKeysMin | Evicted Keys | Evicted | - | The number of keys evicted in a time window, which is equal to the value of evicted_keys output by the info command. |
Connections | ConnectionsMin | Connections | Connections | - | The number of TCP connections to an instance |
Connection Utilization | ConnectionsUsMin | Connection Utilization | ConnectionsUtil | % | The ratio of the number of TCP connections to the maximum number of connections |
Inbound Traffic | InFlowMin | Inbound Traffic | InFlow | MB/s | Private network inbound traffic |
Inbound Traffic Utilization | InFlowUsMin | Inbound Traffic Utilization | InBandwidthUtil | % | The ratio of the actually used private inbound traffic to the maximum traffic |
Outbound Traffic | OutFlowMin | Outbound Traffic | OutFlow | MB/s | Private network outbound traffic |
Outbound Traffic Utilization | OutFlowUsMin | Outbound Traffic Utilization | OutBandwidthUtil | % | The ratio of the actually used private outbound traffic to the maximum traffic |
Average Execution Latency | LatencyMin | Average Execution Latency | LatencyAvg | ms | The average execution latency between the proxy and the Redis server |
Average Read Latency | LatencyGetMin | Average Read Latency | LatencyRead | ms | The average execution latency of read commands between the proxy and the Redis server |
Average Write Latency | LatencySetMin | Average Write Latency | LatencyWrite | ms | The average execution latency of write command between the proxy and the Redis server |
Average Latency of Other Commands | LatencyOtherMin | Average Latency of Other Commands | LatencyOther | ms | The average execution latency of commands (excluding write and read commands) between the proxy and the Redis server |
Total Requests | QpsMin | Total Requests | Commands | Counts/sec | Queries per second |
Read Requests | StatGetMin | Read Requests | CmdRead | Counts/sec | The number of read command executions per second |
Write Requests | StatSetMin | Write Requests | CmdWrite | Counts/sec | The number of write command executions per second |
Other Requests | StatOtherMin | Other Requests | CmdOther | Counts/sec | The number of command (excluding write and read commands) executions per second |
Big Value Requests | BigValueMin | Big Value Requests | CmdBigValue | Counts/sec | The number of executions of requests larger than 32 KB per second |
Slow Logs | SlowQueryMin | Slow Logs | CmdSlow | - | The number of command executions with a latency greater than the slowlog-log-slower-than configuration |
Read Request Hits | StatSuccessMin | Read Request Hits | CmdHits | - | The number of keys successfully requested by read commands, which is equal to the value of the keyspace_hits metric output by the info command. |
Read Request Misses | StatMissedMin | Read Request Misses | CmdMiss | - | The number of keys unsuccessfully requested by read commands, which is equal to the value of the keyspace_misses metric output by the info command. |
Execution Errors | CmdErrMin | Execution Errors | CmdErr | - | The number of command execution errors. For example, the command does not exist, parameters are incorrect, etc. |
Read Request Hit Rate | CacheHitRatioMin | Read Request Hit Rate | CmdHitsRatio | % | Key hits/(key hits + key misses). This metric can reflect the situation of cache miss. When the access request quantity is 0, the value of this metric will be null. |
Cluster sharding
1-Minute Metric | 1-Minute Metric Parameter | 5-Second Metric | 5-Second Metric Parameter | Unit | Description |
CPU Utilization | CpuUsNodeMin | CPU Utilization | CpuUtilNode | % | Average CPU utilization |
Used Memory | StorageNodeMin | Used Memory | MemUsedNode | MB | Actually used memory capacity, including the capacity for data and cache |
Memory Utilization | StorageUsNodeMin | Memory Utilization | MemUtilNode | % | The ratio of the actually used memory to the requested total memory |
Total Keys | KeysNodeMin | Total Keys | KeysNode | - | The total number of keys (level-1 keys) in instance storage |
Expired Keys | ExpiredKeysNodeMin | Expired Keys | ExpiredNode | - | The number of keys expired in a time window, which is equal to the value of expired_keys output by the info command. |
Evicted Keys | EvictedKeysNodeMin | Evicted Keys | EvictedNode | - | The number of keys evicted in a time window, which is equal to the value of evicted_keys output by the info command. |
Total Requests | QpsNodeMin | Total Requests | CommandsNode | Counts/sec | Queries per second |
Read Requests | StatGetNodeMin | Read Requests | CmdReadNode | Counts/sec | The number of read command executions per second |
Write Requests | StatSetNodeMin | Write Requests | CmdWriteNode | Counts/sec | The number of write command executions per second |
Other Requests | StatOtherNodeMin | Other Requests | CmdOtherNode | Counts/sec | The number of command (excluding write and read commands) executions per second |
Slow Logs | SlowQueryNodeMin | Slow Logs | CmdSlowNode | - | The number of command executions with a latency greater than the slowlog-log-slower-than configuration |
Read Request Hits | StatSuccessNodeMin | Read Request Hits | CmdHitsNode | - | The number of keys successfully requested by read commands, which is equal to the value of the keyspace_hits metric output by the info command. |
Read Request Misses | StatMissedNodeMin | Read Request Misses | CmdMissNode | - | The number of keys unsuccessfully requested by read commands, which is equal to the value of the keyspace_misses metric output by the info command. |
Execution Errors | CmdErrNodeMin | Execution Errors | CmdErr | - | The number of command execution errors. For example, the command does not exist, parameters are incorrect, etc. |
Read Request Hit Rate | CacheHitRatioNodeMin | Read Request Hit Rate | CmdHitsRatioNode | % | Key hits/(key hits + key misses). This metric can reflect the situation of cache miss. When the access request quantity is 0, the value of this metric will be null. |
Description of parameters in each dimension
Parameter (5-Second Granularity) | Dimension Name | Description | Format | Mapping |
Instances.N.Dimensions.0.Name | instanceid | Dimension name of the instance ID | Enter a string-type dimension name: instanceid. | Unchanged |
Instances.N.Dimensions.0.Value | instanceid | Specific instance ID | Enter a specific Redis instance ID, such as tdsql-123456, which can be queried through the DescribeInstances API and can also be an instance string such as crs-ifmymj41. | Unchanged |
Instances.N.Dimensions.1.Name | rnodeid | Dimension name of the Redis node ID | Enter a string-type dimension name: rnodeid. | Corresponding 1-minute dimension name: clusterid. |
Instances.N.Dimensions.1.Value | rnodeid | Specific Redis node ID | Corresponding 1-minute dimension name: clusterid. |
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