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User Guide

AWS OpsWorks Metrics and Dimensions

AWS OpsWorks sends metrics to CloudWatch for each active stack every minute. Detailed monitoring is enabled by default. For more information, see Monitoring in the AWS OpsWorks User Guide.

AWS OpsWorks Stacks Metrics

AWS OpsWorks Stacks sends the following metrics to CloudWatch every five minutes.

CPU Metrics

Metric Description

cpu_idle

The percentage of time that the CPU is idle.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

cpu_nice

The percentage of time that the CPU is handling processes with a positive nice value, which have a lower scheduling priority. For more information about what this measures, see nice (Unix).

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

cpu_steal

As AWS allocates hypervisor CPU resources among increasing numbers of instances, virtualization load rises, and can affect how often the hypervisor can perform requested work on an instance. cpu_steal measures the percentage of time that an instance is waiting for the hypervisor to allocate physical CPU resources.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

cpu_system

The percentage of time that the CPU is handling system operations.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

cpu_user

The percentage of time that the CPU is handling user operations.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

cpu_waitio

The percentage of time that the CPU is waiting for input/output operations.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

Memory Metrics

Metric Description

memory_buffers

The amount of buffered memory.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

memory_cached

The amount of cached memory.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

memory_free

The amount of free memory.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

memory_swap

The amount of swap space.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

memory_total

The total amount of memory.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

memory_used

The amount of memory in use.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

Load Metrics

Metric Description

load_1

The load averaged over a one-minute window.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

load_5

The load averaged over a five-minute window.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

load_15

The load averaged over a 15-minute window.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

Process Metrics

Metric Description

procs

The number of active processes.

Valid Dimensions: The IDs of the individual resources for which you are viewing metrics: StackId, LayerId, or InstanceId.

Valid Statistics: Average, Minimum, Maximum, Sum, or Data Samples.

Unit: None

Dimensions for AWS OpsWorks Metrics

AWS OpsWorks data can be filtered along any of the following dimensions in the table below.

Dimension Description
StackId

Average values for a stack.

LayerId

Average values for a layer.

InstanceId

Average values for an instance.