On 16/01/2010, Phil Steitz <phil.ste...@gmail.com> wrote:
> sebb wrote:
>  > On 15/01/2010, sebb <seb...@gmail.com> wrote:
>  >> It's looking as if the problem with the Continuum test failures is
>  >>  probably because the system is overloaded.
>  >>
>  >>  Perhaps it does not make sense to have such a short wait time, i.e. 
> 100ms.
>  >>
>  >>  Maybe better to increase the time to (say) 500ms, and keep the hold
>  >>  time at 2 * wait.
>  >>
>  >>  I'm going to try this to see.
>  >>  It will obviously increase the time it takes to run the test, but it
>  >>  should not take much more than 1s or 1.5s
>  >
>  > I'm fairly confident that the only test failures now are due to slow
>  > running on the overloaded Continuum host. The last 15 DBCP runs have
>  > been successful. So might be good to consider creating a new release
>  > candidate.
>  >
>  > However, before that, can we perhaps fix:
>  >
>  > DBCP-231 SharedPoolDataSource does not need userKeys LRUMap cache
>  >
>  > This would solve the question as to whether the correct entry is being
>  > removed currently, and would obviously avoid any possibility of stale
>  > entries.
>
>
> Agreed. I think we can safely eliminate the "cache" as I suspect
>  with anything but the most ancient JDKs, the overhead associated
>  with the cache itself swamps any benefit it provides.  We can also
>  eliminate the Collections LRUMap class by doing this.

Except if you want to use it for the PerUserPoolDataSource cache ;-)

>  Phil
>  >
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