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Measures reported by KernelConfigTest
The KernelConfigTest monitors the Configuration Manager's interactions with the database. The Configuration Manager enables J2EE Engine modules to store and access data from a relational database management system (RDBMS). It provides properties for configuring a database connection.
| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Commit_duration |
The time taken for a commit to take place for data storage in the last measurement period |
Secs |
|
| Locked_exception_ratio |
The number of database lock exceptions that occurred for every database access in the last measurement period |
Exceptions/Db_tries |
|
| Cache_hit_rate |
The number of times data was retrieved from the database cache for every database access in the last measurement period |
Percent |
Ideally, the ratio of cache hits to database accesses should be high, as direct database accesses are expensive operations.
|
| Db_read_ratio |
The number of database reads that occurred for every database access in the last measurement period
|
Reads/Db_tries |
|
| Db_write_ratio |
The number of database writes that occurred for every database access in the last measurement period
|
Writes/Db_tries |
|
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