C3P0 Connection Pool Monitoring
This section describes the types, names, and meanings of C3P0 connection pool metrics collected by APM.
Parameter | Data Type | Application Type | Default | Supported Start Agent Version | Supported End Agent Version | Description |
|---|---|---|---|---|---|---|
Threshold (ms) for Reporting Connection Trace | integer | JAVA | 1 | 2.1.3 | - | Threshold for reporting getConnection method traces. If the threshold is not exceeded, such traces will not be reported. |
Obtain Pool Info or Not | radio | JAVA | false | 2.1.3 | - | Whether to obtain pool information when getting connections |
Category | Metric | Name | Description | Unit | Data Type | Default Aggregation Mode |
|---|---|---|---|---|---|---|
Data source (dataSource) | url | URL | URL | - | ENUM | LAST |
driverClass | Driver | Driver | - | STRING | LAST | |
initialPoolSize | initialPoolSize | Number of initialized connections | - | INT | LAST | |
minPoolSize | minPoolSize | Minimum connection pool size | - | INT | LAST | |
maxPoolSize | maxPoolSize | Maximum connection pool size | - | INT | LAST | |
numIdleConnections | numIdleConnections | Number of idle connections | - | INT | LAST | |
numBusyConnections | numBusyConnections | Number of busy connections | - | INT | LAST | |
numConnections | numConnections | Total number of connections | - | INT | LAST | |
maxIdleTime | maxIdleTime | Maximum connection idle time | - | INT | LAST | |
idleConnectionTestPeriod | idleConnectionTestPeriod | Interval for checking for idle connections | - | INT | LAST | |
testConnectionOnCheckout | testConnectionOnCheckout | Connection validity check during check-out | - | STRING | LAST | |
testConnectionOnCheckin | Connection Validity Check During Check-In | Connection validity check during check-in | - | STRING | LAST | |
acquireRetryAttempts | Connection Retries | Number of Connection retry times | - | INT | LAST | |
acquireRetryDelay | Connection Retry Interval | Connection retry interval | - | INT | LAST | |
acquireIncrement | Connections Created If No Connection Exists | Number of connections created if no connection exists | - | INT | LAST | |
Connection details (connection) | url | Connection Address | Connection address | - | ENUM | LAST |
invokeCount | Calls | Number of calls | - | INT | LAST | |
totalTime | Total Time | Total time | - | INT | LAST | |
errorCount | Errors | Number of errors | - | INT | SUM | |
maxTime | Max. RT | Maximum response time | - | INT | SUM | |
range1 | 0–10 ms | Number of requests with 0–10 ms response time | - | INT | SUM | |
range2 | 10–100 ms | Number of requests with 10–100 ms response time | - | INT | SUM | |
range3 | 100–500 ms | Number of requests with 100–500 ms response time | - | INT | SUM | |
range4 | 500–1000 ms | Number of requests with 500–1000 ms response time | - | INT | SUM | |
range5 | 1–10s | Number of requests with 1–10s response time | - | INT | SUM | |
range6 | > 10s | Number of requests with response time longer than 10s | - | INT | SUM | |
concurrentMax | Max. Concurrency | Maximum concurrency | - | INT | MAX | |
Version (version) | version | Version | Version | - | STRING | LAST |
Exception (exception: C3P0 call exception statistics) | exceptionType | Exception Type | Exception type | - | ENUM | LAST |
causeType | Exception Class | Exception class | - | ENUM | LAST | |
count | Count | Number of times the exception has occurred | - | INT | SUM | |
message | Exception Message | Message returned when the exception occurred | - | STRING | LAST | |
stackTrace | Exception Stack | Exception stack information | - | CLOB | LAST |