Updated on 2025-07-03 GMT+08:00

Supported Metrics

This section describes GeminiDB DynamoDB-Compatible API metrics reported to Cloud Eye as well as their namespaces and dimensions. You can use APIs provided by Cloud Eye to query the metrics and alarms.

Namespace

SYS.NoSQL

Metrics

You can view metrics on instance nodes by following Viewing Metrics.

Table 1 GeminiDB DynamoDB-Compatible API metrics

Metric ID

Name

Description

Value Range

Unit

Number System

Monitored Object

Monitoring Period (Raw Data)

nosql005_disk_usage

Storage Space Usage

Storage usage of the current instance.

0–100

%

N/A

GeminiDB DynamoDB-Compatible instance

1 minute

nosql006_disk_total_size

Total Storage Space

Total storage space of the current instance.

≥ 0

GB

1024(IEC)

GeminiDB DynamoDB-Compatible instance

1 minute

nosql007_disk_used_size

Storage Space Usage

Storage space usage of the current instance.

≥ 0

GB

1024(IEC)

GeminiDB DynamoDB-Compatible instance

1 minute

nosql009_dfv_write_delay

Storage Write Latency

Average delay of writing data to the storage layer in a specified period

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

nosql010_dfv_read_delay

Storage Read Latency

Average latency of reading data from the storage layer in a specified period

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra001_cpu_usage

CPU Usage

CPU usage of an instance

0–100

%

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra002_mem_usage

Memory Usage

Memory usage of the instance

0–100

%

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra003_bytes_out

Network Output Throughput

Outgoing traffic in bytes per second

≥ 0 Bytes/s

Bytes/s

1024(IEC)

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra004_bytes_in

Network Input Throughput

Incoming traffic in bytes per second

≥ 0

Bytes/s

1024(IEC)

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra014_connections

Active Node Connections

Active connections to the current GeminiDB DynamoDB-Compatible instance node

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra015_read_latency

Average Read Latency

Average amount of time consumed by read requests

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra016_write_latency

Average Write Latency

Average amount of time consumed by write requests

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra037_pending_write

Suspended Write Tasks

Number of write tasks waiting in the queue

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra038_pending_read

Suspended Read Tasks

Number of read tasks waiting in the queue.

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra044_range_slice_latency

Scan Duration

Average time consumed by scan operations

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra049_dropped_mutation

Dropped Writes

Average number of dropped writes

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra052_dropped_read

Dropped Reads

Average number of dropped reads

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra092_load_info

Data Volume on a Node

Data volume on a node

≥ 0

Byte

1024(IEC)

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra093_write_count_latency

Accumulated Write Requests

Number of write requests initiated by a node

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra094_write_1min_rate

Average Write Rate in the Last Minute

Average write rate in the last minute

≥ 0

Counts/s

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra095_write_p75_latency

p75 Write Latency

p75 write latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra096_write_p95_latency

p95 Write Latency

p95 write latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra097_write_p99_latency

p99 Write Latency

p99 write latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra098_read_count_latency

Accumulated Read Requests

Number of read requests initiated by a node

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra099_read_1min_rate

Average Read Rate in the Last Minute

Average read rate in the last minute

≥ 0

Counts/s

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra100_read_p75_latency

p75 Read Latency

p75 read latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra101_read_p95_latency

p95 Read Latency

p95 read latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra102_read_p99_latency

p99 Read Latency

p99 read latency

≥ 0

ms

N/A

instance node

1 minute

cassandra103_range_slice_count_latency

Accumulated Range Read Requests

Number of range read requests

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra104_range_slice_1min_rate

Average Range Read Rate in the Last Minute

Average range read rate in the last minute

≥ 0

Counts/s

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra105_range_slice_p75_latency

p75 Range Read Latency

p75 range read latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra106_range_slice_p95_latency

p95 Range Read Latency

p95 range read latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra107_range_slice_p99_latency

p99 Range Read Latency

p99 range read latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra163_write_p999_latency

p999 Write Latency

p999 write latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra164_read_p999_latency

p999 Read Latency

p999 read latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra165_large_partition_num

Big Keys

Number of big keys on the current node

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra166_write_max_latency

Maximum Write Latency

Maximum write latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra167_read_max_latency

Maximum Read Latency

Maximum read latency

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra168_imbalance_table_num

Tables with Uneven Data Distribution

Number of tables whose data is not evenly distributed

≥ 0

Counts

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra169_modify_request_size_mean

Average Write Request Size

Average write request size

≥ 0

Bytes

1024(IEC)

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra170_query_response_size_mean

Average Query Response Size

Average size of query requests

≥ 0

Bytes

1024(IEC)

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra173_limit_diff_count_mean

Mean of limit Value and Returned Rows

Mean of limit difference

≥ 0

-

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra174_tombstone_query_rate

Tombstone Query Requests per Second

Rate of tombstone query requests

≥ 0

Counts/s

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra175_single_delete_rate

Row Delete Requests per Second

Rate at which a single row is deleted

≥ 0

Counts/s

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra176_range_delete_rate

Range Delete Requests per Second

Range deletion rate

≥ 0

Counts/s

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra177_large_row_count

Large Rows per Second

Number of large rows

≥ 0

Counts/s

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

cassandra174_tombstone_query_rate

Maximum sync delay

Maximum synchronization latency between the primary and standby instances

≥ 0

ms

N/A

GeminiDB DynamoDB-Compatible instance node

1 minute

Dimensions

Key

Value

cassandra_cluster_id

instance cluster ID

cassandra_node_id

instance node ID