MySQL & Tomcat

Good Day All,

I hope i have the right place,

can someone tell me what is the relation between MySQL and Tomcat in
relation to connection pools?

we have been monitoring our mysql connections and it opens loads of
connections and then it goes up to 90 and then drops again to 20isg
after about and hour.

then i am not too sure on the below and exactly how it works.
if Threads_cached is set to 50 and it shows 0 does that mean there is
no more cachable threads or does the 0 mean there has been no threads
cached yet?

| Threads_cached             | 0          |


now the next thing that is bowling me over is that threads connected
is 3, and threads created is a 146 but there is only 1 threads
running.
| Threads_connected          | 3          |
| Threads_created            | 146        |
| Threads_running            | 1          |


I have read up on a couple of places but it is still getting me a bit.

Kind regards,
Johan

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