Any way to decrease connection number?

Question

Hello;
I am programming an album site...The thumbnail images are called somewhere outside http because i dont want anyone to see others photos...so i call the photos with buffered file stream
in the photostream.jsp the images are drawed explained as above with servletoutputstream...
in the album.jsp the thumbnail images are included as <img src="photostreamjsp?photo_id=xx"> and there is max 16 thumbnail images shown on album.jsp
now the problem:the photostream.jsp included as 16 times and it makes 16 database connection...is this too much..?if it is too much how can i decrease it..?is there any way to store th images in an array?
Note:think that there is 100 users online and 1600 database query?
thank you

Answer 1

Hello;
I am programming an album site...The thumbnail images
are called somewhere outside http because i dont want
anyone to see others photos...so i call the photos
with buffered file stream
in the photostream.jsp the images are drawed
explained as above with servletoutputstream...
in the album.jsp the thumbnail images are included as
<img src="photostreamjsp?photo_id=xx"> and there is
max 16 thumbnail images shown on album.jsp
now the problem:the photostream.jsp included as 16
times and it makes 16 database connection...is this
too much..?This is where testing comes into play. Pre-optimization may be the root of all evil, but one should aspire to send all the data with the minimum amount of transactions and minimum amount of transfer data possible.
if it is too much how can i decrease
it..?is there any way to store th images in an
array?Have you looked at all into using a sql batches ?
>
Note:think that there is 100 users online and 1600
database query?That depends on a couple of things:
1) what are the chances that all of the uses will be hitting the database at the same time ?
2) How many concurrent connections can your database handle
3) How long are you users prepared to wait under the guide of "acceptable performance time"
4) Has any load testing been done and have any metrics been decided on as to what you consider acceptable performance ?
>
thank you