Metrics
Once installed and enabled, the APM agents automatically start reporting key performance metrics about your application. These include response time and error rate for the service as a whole, or for a particular transaction. AppOptics also provides a set of trace-derive metrics for various types of outbound calls made by your application, such as response time for database calls that can be filtered by database host or query operation. In addition, several of the agents report language-specific runtime metrics about the execution environment of your application.
Standard Metrics
The tables below list the default set of metrics collected by the APM agent. Counts are reported every minute.
Service Metrics
| Metric |
Description |
| trace.service.errors |
Service error count |
| trace.service.error_rate |
Service error rate (%) |
| trace.service.host.errors |
Host error count |
| trace.service.host.requests |
Host request count |
| trace.service.host.response_time |
Host response time |
| trace.service.hosts.count |
Service host count |
| trace.service.http_method.requests |
Service HTTP method count |
| trace.service.http_method.response_time |
Service response time by HTTP method |
| trace.service.http_status.requests |
Service HTTP status count |
| trace.service.http_status.response_time |
Service response time by HTTP method |
| trace.service.requests |
Service request count |
| trace.service.response_time |
Service average response time |
| trace.service.response_time.p50 |
Service response time of the top 50% |
| trace.service.response_time.p95 |
Service response time of the top 95% |
| trace.service.response_time.p99 |
Service response time of the top 99% |
| trace.service.response_time.p999 |
Service response time of the top 99.9% |
| trace.service.transaction.errors |
Transaction error count |
| trace.service.transaction.http_method.requests |
Transaction HTTP method count |
| trace.service.transaction.http_status.requests |
Transaction HTTP status count |
| trace.service.transaction.requests |
Transaction request count |
| trace.service.transaction.response_time |
Transaction average response time |
| trace.service.transaction.response_time.p50 |
Transaction response time of the top 50% |
| trace.service.transaction.response_time.p95 |
Transaction response time of the top 95% |
| trace.service.transaction.response_time.p99 |
Transaction response time of the top 99% |
Service Metric Tags
| Tag Name |
Description |
| hostname |
Name of the host. Instead of using this tag we recommend using the @host alias |
| method |
HTTP request method |
| service |
Name of the service |
| status |
HTTP status code |
| transaction |
Name of the transaction |
Sampled Trace-Derived Metrics
Trace-derived metrics are pulled from the traces gathered by the APM agent.
Note that under load, the agent doesn't necessarily trace 100% of requests, so unlike the standard metrics above,
these are not guaranteed to reflect all the activity in your applications.
Database Metrics
| Metric |
Description |
| trace.service.outbound_calls.database.query.response_time_per_trace |
Service database query average response time per trace |
| trace.service.outbound_calls.database.query.response_time |
Service database query average response time |
| trace.service.outbound_calls.database.query.count_per_trace |
Service database query average count per trace |
Database Metric Tags
| Tag Name |
Description |
| service |
Name of the service |
| database |
Name of the database |
| database_host |
The Database Host |
| query_op |
Query operation |
| query_table |
Database Table |
Cache Metrics
| Metric |
Description |
| trace.service.outbound_calls.cache.op.response_time_per_trace |
Service cache op average response time per trace |
| trace.service.outbound_calls.cache.op.response_time |
Service cache op query average response time |
| trace.service.outbound_calls.cache.op.count_per_trace |
Service cache op average count per trace |
| trace.service.outbound_calls.cache.op.hit_rate |
Servce cache op average hit rate |
Cache Metric Tags
| Tag Name |
Description |
| service |
Name of the service |
| cache |
Name of the cache |
| cache_host |
The Cache Host |
| cache_op |
Cache operation |
Remote Service Metrics
| Metric |
Description |
| trace.service.outbound_calls.remote_service.call.response_time_per_trace |
Service remote call average response time per trace |
| trace.service.outbound_calls.remote_service.call.response_time |
Service remote call query average response time |
| trace.service.outbound_calls.remote_service.call.count_per_trace |
Service remote call average count per trace |
Remote Service Metric Tags
| Tag Name |
Description |
| service |
Name of the service |
| remote_service |
Name of the remote service |
| remote_service_type |
Remotes service type |
| remote_service_op |
Remote service operation |
Exception Metrics
| Metric |
Description |
| trace.service.exceptions.count |
Service exceptions count |
Exception Metric Tags
| Tag Name |
Description |
| service |
Name of the service |
| transaction |
Name of the transaction |
| exception_class |
Name of the Exception Class |
| message_hash |
A hash of the message |
| backtrace_hash |
A hash of the backtrace |
Other Sampled Metrics
| Metric |
Description |
| trace.service.critical_path.response_time_per_trace |
Service critical path average response time |
Other Sampled Metric Tags
| Tag Name |
Description |
| service |
Name of the service |
| transaction |
Name of the transaction |
| layer_name |
Name of the Layer |
| layer_type |
The type of Layer |
Runtime Metrics
Many of our agents also report language-specifc runtime metrics, to provide you insight and monitoring on memory, CPU and other statistics about your application's execution environment. An example is using the JMX metrics reported by the Java agent to correlate between application performance and JVM metrics such as garbage collection, heap size, and thread count.
The agents report runtime metrics out-of-the-box; on detecting these metrics, AppOptics automatically creates a preconfigured dashboard in your account to help you easily monitor key metrics right away:
These runtime metrics are also available throughout the AppOptics system for you to use in custom charts and dashboards and alerts.
See the links below on the metrics for each language runtime and agent-specific configuration:
Runtime Metric Tags
Runtime metrics, regardless of agent, will have the following tags:
| Tag Name |
Description |
| hostname |
Name of the host |
| service |
Name of the service |
When the APM Integrated Experience is enabled, AppOptics shares a common navigation and enhanced feature set with the other integrated experiences' products. How you navigate the product and access its features may vary from these instructions. For more information, go to the APM Integrated Experience documentation.
