The CloudWatch agent can collect predefined Prometheus metrics from Java Virtual Machine (JVM), For more information, see prometheus/jmx_exporter. Hjava, and Tomcat (Catalina), from a JMX exporter on EC2 instances. The next step is to start the Java/JMX workload.įirst, download the latest JMX exporter jar file from the following location: The example commands in the following sections use Replace these parts of the commands with the jar for your application. The config.yaml file is the JMX exporter configuration file.įor more information, see Configuration in the JMX exporter documentation. Pattern: 'Catalina(processingTime|sessionCounter|rejectedSessions|expiredSessions)' pattern: 'Catalina(currentThreadCount|currentThreadsBusy|keepAliveCount|pollerThreadCount|connectionCount)' pattern: 'Catalina(requestCount|maxTime|processingTime|errorCount)' Name: catalina_globalrequestprocessor_$3_total pattern: 'java.lang(TotalStartedThreadCount|ThreadCount)' pattern: 'java.lang(FreePhysicalMemorySize|TotalPhysicalMemorySize|FreeSwapSpaceSize|TotalSwapSpaceSize|SystemCpuLoad|ProcessCpuLoad|OpenFileDescriptorCount|AvailableProcessors)' Here is a sample configuration for Java and Tomcat. App with the correct Java application with the Prometheus exporter This will emit Prometheus metrics to port 9404.īe sure to replace the entry point. "^catalina_globalrequestprocessor_bytesreceived$" "^java_lang_operatingsystem_freephysicalmemorysize$", "catalina_globalrequestprocessor_bytesreceived": "Bytes", "jvm_gc_collection_seconds_sum": "Seconds", "catalina_manager_activesessions": "Count", "java_lang_operatingsystem_freephysicalmemorysize": "Bytes", "prometheus_config_path": " path-to-Prometheus-Scrape-Configuration-file", Infromation for your sample java application. Restart the CloudWatch agent by entering one of the following commands.A Prometheus exporter for Amazon CloudWatch. Alternativesįor ECS workloads, there is also an ECS exporter.įor a different approach to CloudWatch metrics, with automatic discovery, consider Yet Another CloudWatch Exporter (YACE). Building and runningĬloudwatch Exporter requires at least Java 8. The most recent pre-built JAR can be found at Credentials and permissions Java -jar target/cloudwatch_exporter-*-SNAPSHOT-jar-with-dependencies.jar 9106 example.yml to run. This includes the AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment Which offers a variety of ways to provide credentials. The cloudwatch:ListMetrics and cloudwatch:GetMetricStatistics IAM permissions are required. Note: configuration examples for different namespaces can be found in examples directory Resource_type_selection: "elasticloadbalancing:loadbalancer" ConfigurationĪn example with common options and aws_dimension_select:Īws_dimensions: The tag:GetResources IAM permission is also required to use the aws_tag_select feature. Note: A configuration builder can be found here. ![]() If none is provided, an attempt will be made to determine the region from the default region provider chain. A list of CloudWatch metrics to retrieve and export Useful for retrieving cross account metrics. If your CockroachDB Dedicated cluster is hosted on GCP or Azure, you can export metrics to Datadog instead.This should contain exactly all the dimensions available for a metric. Your CockroachDB Dedicated cluster must be running on AWS (not GCP or Azure) to make use of metrics export to AWS CloudWatch. If you are using an existing AWS role, or are otherwise using a role name different from the example name used in this tutorial, be sure to use your own role name in step 8 in place of CockroachCloudMetricsExportRole. ![]() See Prometheus metric type conversion for more information, and Logging dropped Prometheus metrics for instructions on tracking dropped histogram metrics in CloudWatch.īe sure you are providing your own AWS Account ID as shown on the AWS IAM page to step 6, not the AWS cloud provider account ID as returned from step 3. Any histogram-type metrics emitted from your CockroachDB Dedicated cluster are dropped by CloudWatch. AWS CloudWatch does not currently support histograms. ![]() If your CockroachDB Dedicated cluster is hosted on GCP or Azure, you can export metrics to Datadog instead.
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