Amazon Elastic Load Balancing

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Overview

Amazon Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.

Datadog collects metrics and metadata from all three flavors of Elastic Load Balancers that AWS offers: Application (ALB), Classic (ELB), and Network Load Balancers (NLB).

Enable this integration to see in Datadog all your Elastic Load Balancing metrics.

Note: This integration requires the permissions ’ec2:describe**’ and ’elasticloadbalancing:describe*’ to be fully enabled.

Setup

Installation

If you haven’t already, set up the Amazon Web Services integration first.

Metric collection

  1. In the AWS integration page, ensure that ApplicationELB, ELB, and NetworkELB are enabled under the Metric Collection tab.
  2. Install the Datadog - Amazon ELB integration.

Log collection

Enable Amazon ELB or ALB logging

Enable the logging on your ELB or your ALB first to collect your logs. ALB and ELB logs can be written in an Amazon S3 bucket and consumed by a Lambda function. For more information, see Enable access logs for your Classic Load Balancer.

amazon elb log enable

Set the interval to 5 minutes and define your S3 bucket and prefix. To avoid having an ambiguously defined S3 event notification configuration, be sure to use a unique location that does not overlap with any other load balancer’s log location. When multiple load balancers are logging to the same bucket, be sure to use a unique prefix, such as my-bucket-for-elb-logs/my-elb-name, to have their logs stored in separate locations.

amazon elb log configuration

Send logs to Datadog

  1. If you haven’t already, set up the Datadog Forwarder Lambda function in your AWS account.
  2. Once set up, go to the Datadog Forwarder Lambda function. Set up your triggers automatically or manually on the S3 bucket that contains your ELB logs. For the manual setup, use the event type All object create events.
  3. Use the Log Explorer to explore your logs.

For more information on collecting AWS Services logs, see Send AWS Services Logs with the Datadog Lambda Function.

Data Collected

Metrics

aws.elb.active_connection_count
(count)
The total number of concurrent TCP connections active from clients to the load balancer and from the load balancer to targets.
Shown as connection
aws.elb.backend_connection_errors
(rate)
Number of connections that were not successfully established between the load balancer and the registered instances.
Shown as error
aws.elb.client_tlsnegotiation_error_count
(count)
Number of TLS negotiation errors.
Shown as error
aws.elb.consumed_lbcapacity_units
(gauge)
Number of ELB capacity units consumed.
Shown as unit
aws.elb.consumed_lcus
(gauge)
The number of load balancer capacity units (LCU) used by your load balancer.
Shown as unit
aws.elb.estimated_albactive_connection_count
(count)
The estimated total number of concurrent TCP connections active from clients to the load balancer and from the load balancer to targets.
Shown as connection
aws.elb.estimated_albconsumed_lcus
(gauge)
The estimated total number of load balancer capacity units (LCU) used by an Application Load Balancer.
Shown as unit
aws.elb.estimated_albnew_connection_count
(count)
The estimated total number of new TCP connections established from clients to the load balancer and from the load balancer to targets
Shown as connection
aws.elb.estimated_processed_bytes
(count)
The estimated total number of bytes processed by an Application Load Balancer.
Shown as byte
aws.elb.healthy_host_count
(gauge)
Average number of healthy instances in each Availability Zone.
Shown as host
aws.elb.healthy_host_count.maximum
(gauge)
Maximum number of healthy instances in each Availability Zone.
Shown as host
aws.elb.healthy_host_count.minimum
(gauge)
Minimum number of healthy instances in each Availability Zone.
Shown as host
aws.elb.healthy_host_count_deduped
(gauge)
The number of healthy instances per Availability Zone, regardless of if the Cross-Zone Load Balancing option is enabled or not.
Shown as host
aws.elb.httpcode_backend_2xx
(rate)
Number of HTTP 2XX response codes generated by registered instances.
Shown as response
aws.elb.httpcode_backend_3xx
(rate)
Number of HTTP 3XX response codes generated by registered instances.
Shown as response
aws.elb.httpcode_backend_4xx
(rate)
Number of HTTP 4XX response codes generated by registered instances.
Shown as response
aws.elb.httpcode_backend_5xx
(rate)
Number of HTTP 5XX response codes generated by registered instances.
Shown as response
aws.elb.httpcode_elb_4xx
(rate)
Number of HTTP 4XX client error codes generated by the load balancer.
Shown as response
aws.elb.httpcode_elb_5_0_0
(count)
The number of HTTP 500 error codes that originate from the load balancer.
Shown as response
aws.elb.httpcode_elb_5_0_2
(count)
The number of HTTP 502 error codes that originate from the load balancer.
Shown as response
aws.elb.httpcode_elb_5_0_3
(count)
The number of HTTP 503 error codes that originate from the load balancer.
Shown as response
aws.elb.httpcode_elb_5_0_4
(count)
The number of HTTP 504 error codes that originate from the load balancer.
Shown as response
aws.elb.httpcode_elb_5xx
(rate)
Number of HTTP 5XX client error codes generated by the load balancer.
Shown as response
aws.elb.httpcode_redirect
(count)
The number of redirect actions that were successful.
Shown as response
aws.elb.httpcode_target_2xx
(count)
Number of HTTP 2XX response codes generated by the targets.
Shown as response
aws.elb.httpcode_target_3xx
(count)
Number of HTTP 3XX response codes generated by the targets.
Shown as response
aws.elb.httpcode_target_4xx
(count)
Number of HTTP 4XX response codes generated by the targets.
Shown as response
aws.elb.httpcode_target_5xx
(count)
Number of HTTP 5XX response codes generated by the targets.
Shown as response
aws.elb.ipv_6processed_bytes
(count)
The total number of bytes processed by the load balancer over IPv6.
Shown as byte
aws.elb.ipv_6request_count
(count)
The number of IPv6 requests received by the load balancer.
Shown as request
aws.elb.latency
(gauge)
Average time elapsed after the request leaves the load balancer until a response is received. (ELB v1)
Shown as second
aws.elb.latency.maximum
(gauge)
Maximum time elapsed after the request leaves the load balancer until a response is received. (ELB v1)
Shown as second
aws.elb.latency.minimum
(gauge)
Minimum time elapsed after the request leaves the load balancer until a response is received. (ELB v1)
Shown as second
aws.elb.latency.p95
(gauge)
95th percentile of the time elapsed after the request leaves the load balancer until a response is received. (ELB v1)
Shown as second
aws.elb.latency.p99
(gauge)
99th percentile of the time elapsed after the request leaves the load balancer until a response is received. (ELB v1)
Shown as second
aws.elb.new_connection_count
(count)
The total number of new TCP connections established from clients to the load balancer and from the load balancer to targets.
Shown as connection
aws.elb.processed_bytes
(count)
The total number of bytes processed by the load balancer over IPv4 and IPv6.
Shown as byte
aws.elb.request_count
(rate)
Total number of completed requests that were received and routed to the registered instances.
Shown as request
aws.elb.request_count_per_target
(count)
The average number of requests received by each target in a target group.
Shown as request
aws.elb.rule_evaluations
(count)
The number of rules processed by the load balancer given a request rate averaged over an hour.
aws.elb.spillover_count
(rate)
Total number of requests that were rejected because the queue was full.
Shown as request
aws.elb.spillover_count.maximum
(rate)
Maximum number of requests that were rejected because the queue was full per load balancer node.
Shown as request
aws.elb.surge_queue_length
(gauge)
Maximum number of requests that are pending submission to a registered instance.
Shown as request
aws.elb.target_connection_error_count
(count)
Number of connections that were not successfully established between the load balancer and the registered instances.
Shown as error
aws.elb.target_response_time.average
(gauge)
Average time elapsed after the request leaves the load balancer until a response is received. Identical to aws.applicationelb.target_response_time.average.
Shown as second
aws.elb.target_response_time.maximum
(gauge)
Maximum time elapsed after the request leaves the load balancer until a response is received. Identical to aws.applicationelb.target_response_time.maximum.
Shown as second
aws.elb.target_response_time.p95
(gauge)
95th percentile of the time elapsed after the request leaves the load balancer until a response is received. Identical to aws.applicationelb.target_response_time.p95.
Shown as second
aws.elb.target_response_time.p99
(gauge)
99th percentile of the time elapsed after the request leaves the load balancer until a response is received. Identical to aws.applicationelb.target_response_time.p99.
Shown as second
aws.elb.un_healthy_host_count
(gauge)
Average number of unhealthy instances in each Availability Zone.
Shown as host
aws.elb.un_healthy_host_count.maximum
(gauge)
Maximum number of unhealthy instances in each Availability Zone.
Shown as host
aws.elb.un_healthy_host_count.minimum
(gauge)
Minimum number of unhealthy instances in each Availability Zone.
Shown as host
aws.elb.un_healthy_host_count_deduped
(gauge)
The number of unhealthy instances per Availability Zone, regardless of if the Cross-Zone Load Balancing option is enabled or not.
Shown as host

Events

The Amazon Elastic Load Balancing integration does not include any events.

Service Checks

The Amazon Elastic Load Balancing integration does not include any service checks.

Troubleshooting

Need help? Contact Datadog support.

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