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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 APIs to query the DCS metrics and alarms.
Namespace
SYS.DCS
Note
SYS.DCS is the namespace of DCS. Cloud Eye determines which cloud service is reporting metric data based on the namespace.
DCS Redis 3.0 Instance Metrics
Note
The Monitored Objects and Dimensions column lists instances and dimensions that support the corresponding metrics.
| Metric ID | Metric | Description | Value Range | Monitored Object and Dimension | Monitoring Period (Raw Data) |
|---|---|---|---|---|---|
| cpu_usage | CPU Usage | CPU consumed by the monitored object Unit: % |
0-100% | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| memory_usage | Memory Usage | Memory consumed by the monitored object Unit: % |
0-100% | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| net_in_throughput | Network Input Throughput | Inbound throughput per second on a port Unit: KB/s |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| net_out_throughput | Network Output Throughput | Outbound throughput per second on a port Unit: KB/s |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| connected_clients | Connected Clients | Number of connected clients (excluding those to standby nodes) | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| client_longest_out_list | Client Longest Output List | Longest output list among current client connections | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| client_biggest_in_buf | Client Biggest Input Buf | Maximum input data length among current client connections Unit: byte |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| blocked_clients | Blocked Clients | Number of clients suspended by block operations such as BLPOP, BRPOP, and BRPOPLPUSH | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| used_memory | Used Memory | Number of bytes used by the Redis server Unit: MB |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: 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 Unit: MB |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| used_memory_peak | Used Memory Peak | Peak memory consumed by Redis since the Redis server last started Unit: MB |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| used_memory_lua | Used Memory Lua | Number of bytes used by the Lua engine Unit: MB |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: 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 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| total_connections_received | New Connections | Number of connections received during the monitoring period | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| total_commands_processed | Commands Processed | Number of commands processed during the monitoring period | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| instantaneous_ops | Ops per Second | Number of commands processed per second | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| total_net_input_bytes | Network Input Bytes | Number of bytes received during the monitoring period Unit: KB |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| total_net_output_bytes | Network Output Bytes | Number of bytes sent during the monitoring period Unit: KB |
>= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| instantaneous_input_kbps | Input Flow | Instantaneous input traffic Unit: KB/s |
>= 0 KB/s | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| instantaneous_output_kbps | Output Flow | Instantaneous output traffic Unit: KB/s |
>= 0 KB/s | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| rejected_connections | Rejected Connections | Number of connections that have exceeded maxclients and been rejected during the monitoring period | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| expired_keys | Expired Keys | Number of keys that have expired and been deleted during the monitoring period | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| evicted_keys | Evicted Keys | Number of keys that have been evicted and deleted during the monitoring period | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| keyspace_hits | Keyspace Hits | Number of successful lookups of keys in the main dictionary during the monitoring period | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| keyspace_misses | Keyspace Misses | Number of failed lookups of keys in the main dictionary during the monitoring period | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| pubsub_channels | PubSub Channels | Number of Pub/Sub channels | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
| pubsub_patterns | PubSub Patterns | Number of Pub/Sub patterns | >= 0 | Monitored object: Single-node, master/standby, or Proxy Cluster DCS Redis instance Dimension: dcs_instance_id |
1 minute |
Dimensions
| Key | Value |
|---|---|
| dcs_instance_id | DCS Redis instance |