| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Total_threads_waiting
|
The
number of threads that are waiting for a database connection |
Reqs/Sec
|
Ideally, this measure should have a low value. A high value of this measure indicates that the database is slow or does not have additional connections to allocate to service requests from the web application server. |
| Total_conns_failed |
The
total number of times a thread has failed to acquire a JDBC connection |
Number
|
This value can increase for various reasons - connection failures can happen if the database server is down or if the maximum limit of simultaneous connections possible has been reached. Alternatively, if the database pool is not adequately sized (i.e., too few maximum connections), connection failures can occur.
|
| Total_conns_timed_out |
The
total number of connection requests that have been timed out |
Number
|
Ideally, this measure should have a low value. A high value of this measure indicates that the database is slow or does not have additional connections to allocate to service requests from the web application server.
|