FunctionGraph Monitoring¶
This section describes the types, names, and meanings of FunctionGraph metrics collected by APM.
Parameter | Data Type | Application Type | Default | Supported Start Agent Version | Supported End Agent Version | Description |
|---|---|---|---|---|---|---|
Sampling Type | radio | JAVA | 4 | 1.0.0 |
| Sampling type. Options: full sampling, percentage sampling, fixed-quantity sampling per minute, and intelligent sampling (default). |
Sampling Ratio | integer | JAVA | 10 | 1.0.0 |
| Percentage of samples to the total number of trace data records |
Samples/Minute | integer | JAVA | 1000 | 1.0.0 |
| Number of trace data records collected every minute. |
Slow Request Threshold | integer | JAVA | 800 | 2.0.0 |
| Slow request threshold. If the threshold is crossed, the method is regarded as a slow method. In that case, the trace sampling ratio will be increased by default. |
Method Configuration | obj_array | JAVA |
| 2.0.0 |
| Configure the slow request threshold and sampling ratio for each method separately. The following sampling policies can be set: percentage sampling, fixed-quantity sampling per minute, and automatic sampling. |
Category | Metric | Name | Description | Unit | Data Type | Default Aggregation Mode |
|---|---|---|---|---|---|---|
Method monitoring (detail: APM counts URL call statistics by function method.) | method | method | Request method |
| ENUM | LAST |
concurrentMax | concurrentMax | Maximum concurrency of the method |
| INT | MAX | |
errorCount | errorCount | Number of times that the method fails to be called |
| INT | SUM | |
invokeCount | invokeCount | Number of times that the method is called |
| INT | SUM | |
maxTime | maxTime | Maximum response time of the method in a collection period | ms | INT | MAX | |
runningCount | runningCount | Number of executions of the method at the time of collection |
| INT | SUM | |
range1 | range1 | Number of requests with 0-10 ms response time |
| INT | SUM | |
range2 | range2 | Number of requests with 10-100 ms response time |
| INT | SUM | |
range3 | range3 | Number of requests with 100-500 ms response time |
| INT | SUM | |
range4 | range4 | Number of requests with 500-1000 ms response time |
| INT | SUM | |
range5 | range5 | Number of requests with 1-10s response time |
| INT | SUM | |
range6 | range6 | Number of requests with response time longer than 10s |
| INT | SUM | |
totalTime | totalTime | Total response time of the method |
| INT | SUM | |
Cluster call (cluster: APM counts URL call statistics based on the cluster ID of the caller.) | clusterId | clusterId | Cluster ID of the caller |
| ENUM | LAST |
invokeCount | invokeCount | Number of times the cluster is called |
| INT | SUM | |
totalTime | totalTime | Total response time for calling the cluster | ms | INT | SUM | |
errorCount | errorCount | Number of times that the cluster fails to be called |
| INT | SUM |