CassandraDB

Table 1-74 Supported Configuration Metrics for CassandraDB

Metric Group Name Unit Default Collection Frequency Description

ReadStageThreadPool

Active Tasks

NA

1 Min

Approximate number of tasks thread pool is actively executing

ReadStageThreadPool

Currently Blocked Tasks

NA

1 Min

Number of currently blocked tasks

ReadStageThreadPool

Pending Tasks

NA

1 Min

Approximate number of pending tasks thread pool has

Table 1-75 Supported Configuration Metrics for Hosted Target

Metric Group Name Unit Description
Resource Allocation Total CPUs N/A Total number of CPUs allocated or available to the entity
Resource Allocation Total Memory GB Total amount of usable Physical RAM allocated or available to the entity

Table 1-76 Supported Status and Performance Metrics for CassandraDB

Metric Group Category Name Unit Default Collection Frequency Description

Storage

Error

Exceptions

per min

1 Min

Number of internal exceptions caught

Storage

Load

Disk Data Size

bytes

1 Min

On disk data size the node manages

Buffer Pool

Utilization

Size

bytes

1 Min

Size of the managed buffer pool

Buffer Pool

Utilization

Misses

per min

1 Min

The rate of misses in the pool.

Row Cache

Capacity

Capacity

bytes

1 Min

Cache capacity

Row Cache

Utilization

Requests

per min

1 Min

Total number of cache requests

Row Cache

Utilization

Size

bytes

1 Min

Total size of occupied cache

Physical Memory

Load

Memory Usage

GB

1 Min

Physical Memory used in GB

Physical Memory

Utilization

Memory Utilization

%

1 Min

Percentage of physical memory that is utilized

Physical Memory

Utilization

Max

bytes

1 Min

Maximum amount of memory in bytes that can be used for memory management

TableMetrics

Load

ReadLatency

reqs/sec

1 Min

Read requests per second

TableMetrics

Load

WriteLatency

reqs/sec

1 Min

Write requests per second

CommitLogMetrics

Load

TotalCommitLogSize

bytes

1 Min

Current size, in bytes, used by all the commit log segments

CommitLogMetrics

Load

CompletedTasks

msgs/sec

1 Min

Total number of commit log messages written.

CommitLogMetrics

Load

PendingTasks

NA

1 Min

Number of commit log messages written but yet to be fsync'd

CompactionMetrics

Load

BytesCompacted

bytes

1 Min

Total number of bytes compacted

CompactionMetrics

Load

CompletedTasks

ops/sec

1 Min

Number of completed compactions

CompactionMetrics

Load

PendingTasks

NA

1 Min

Total compaction tasks in queue

Table 1-77 Supported Status and Performance Metrics for Hosted Target

Metric Group Category Name Unit Description
CPU Utilization CPU Usage sec All CPUs usage during the interval
CPU N/A CPU Utilization % Percentage of CPU that was utilized
CPU N/A Interval sec Interval of metric collection
Memory Load Memory Usage GB Memory used in GB
Memory Utilization Memory Utilization % Percentage of memory that is utilized
Memory N/A Interval sec Interval of metric collection