GC Monitoring
This section describes the types, names, and meanings of GC metrics collected by APM.
Category | Metric | Name | Description | Unit | Data Type | Default Aggregation Mode |
|---|---|---|---|---|---|---|
GC statistics (gc) | fullGCCount | Full GC Times | Number of full GC times in a collection period | - | INT | SUM |
fullGCCountTotal | Total Full GC Times | Total number of full GC times | - | INT | SUM | |
fullGCTime | Full GC Time | Full GC duration in a collection period | ms | INT | SUM | |
fullGCTimeTotal | Total Full GC Time | Total full GC duration | ms | INT | SUM | |
fullGCMBeanName | Full GC Recycler | Name of the full GC recycler | - | STRING | LAST | |
youngGCCount | Young GC Times | Number of young GC times in a collection period | - | INT | SUM | |
youngGCCountTotal | Total Young GC Times | Total number of young GC times | - | INT | SUM | |
youngGCTime | Young GC Time | Young GC duration in a collection period | ms | INT | SUM | |
youngGCTimeTotal | Total Young GC Time | Total young GC duration | ms | INT | SUM | |
youngGCMBeanName | Young GC Recycler | Name of the young GC recycler | - | STRING | LAST | |
GC details (gcdetail) | action | GC Type | GC type, which can be major or minor | - | ENUM | LAST |
cause | GC Cause | GC cause | - | ENUM | LAST | |
name | GC Name | GC collector name | - | STRING | LAST | |
count | Count | Number of times that GC has occurred | - | INT | SUM | |
totalTime | GC Time | GC duration | ms | INT | SUM | |
maxTime | Max. GC Time | Time consumed by the slowest GC | ms | INT | MAX | |
detail | GC Details | Details about the slowest GC | - | CLOB | LAST |