Re: [SPAM] - Re: [SPAM] - Re: JDBC HighLoad - Found word(s)

Ok so how can i make a preparedStatement pool or
allocated my preparedStatements for each connection ???

Kris Jurka wrote:

>On Fri, 28 Jan 2005, [ISO-8859-1] Stéphane RIFF wrote:
>
>
>
>>Yes i use it as a singleon what's the problem with that ???
>>I instanciate One object => 1 pool for all threads and each thread use
>>the saveTrame
>>
>>
>
>The problem is you have all your preprared statements allocated in the
>singleton instead of per connection. This is bad because you
>overwrite them upon each call to prepareQuery. When you have multiple
>threads doing this at once what will happen is the first thread will
>prepare them and start executing, the second thread will also prepare them
>and begin executing, but since the statements are global, you've replaced
>the first threads versions and it will now be executing on the second
>threads connection because it's using the global statements. You've got
>chaos going on here.
>
>Kris Jurka
>
>---------------------------(end of broadcast)---------------------------
>TIP 3: if posting/reading through Usenet, please send an appropriate
> subscribe-nomail command to majordomo(at)postgresql(dot)org so that your
> message can get through to the mailing list cleanly
>
>
>
>

--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.2 - Release Date: 28/01/2005