Re: Performance issue with large data(such as images)

2009-06-11 Thread fireapple
newton.dave wrote: > > >> "" doesn't work at >> all. > > Stream it from an action/servlet/etc? > > Dave > > - > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > For additional commands, e-mail: user-h...@struts.

Re: Performance issue with large data(such as images)

2009-06-10 Thread Dave Newton
fireapple wrote: Any way to resolve the security issue? If the user save the portrait in the hard drive(outside of app), I couldn't find a way to display it using URL. "" doesn't work at all. Stream it from an action/servlet/etc? Dave ---

RE: Performance issue with large data(such as images)

2009-06-10 Thread fireapple
Security Management wrote: > > I have had problems when trying to show a bunch of thumbnails, because you > have a URL that points to an action in your jsp that causes a database hit > to pull the image. If I'm trying to show 150 thumbnails, the page takes > forever to load due to the db conne

Re: Performance issue with large data(such as images)

2009-06-10 Thread fireapple
Richard Sayre wrote: > > I should have also mentioned that there are security issues with > persisting to the hard drive. > > I would recommend saving to the database and loading the images as > needed. Do not save them to session. I do not think you will have a > performance problem. > > R

RE: Performance issue with large data(such as images)

2009-06-10 Thread Security Management
I should have also mentioned that there are security issues with persisting to the hard drive. I would recommend saving to the database and loading the images as needed. Do not save them to session. I do not think you will have a performance problem. Rich I have had problems when trying to sho

RE: Performance issue with large data(such as images)

2009-06-10 Thread Mitchell, Steven
Sayre [mailto:richardsa...@gmail.com] Sent: Wednesday, June 10, 2009 12:41 PM To: Struts Users Mailing List Subject: Re: Performance issue with large data(such as images) >Thanks, Rich, I''m happy to help. > If I use BLOB, I have to make a lot of change to my code. Therefore, I have > to pers

Re: Performance issue with large data(such as images)

2009-06-10 Thread Richard Sayre
I should have also mentioned that there are security issues with persisting to the hard drive. I would recommend saving to the database and loading the images as needed. Do not save them to session. I do not think you will have a performance problem. Rich --

Re: Performance issue with large data(such as images)

2009-06-10 Thread Richard Sayre
>Thanks, Rich, I''m happy to help. > If I use BLOB, I have to make a lot of change to my code. Therefore, I have > to persist it as String. I used base64 to encode and decode the byte[] into > String. Because I resize the images to small ones. I use a VARCHAR length > about 10k~20k to persist the

Re: Performance issue with large data(such as images)

2009-06-09 Thread Paweł Wielgus
Hi All, just as a side note, 300 users is a very small quantity of users. So i would recomend to check if there is a performance problem at all. Best greetings, Paweł Wielgus. 2009/6/9 Jim Collings : > Can't put em in your database as BLOB's with all the other user info? > > On Tue, Jun 9, 2009

Re: Performance issue with large data(such as images)

2009-06-09 Thread Jim Collings
Can't put em in your database as BLOB's with all the other user info? On Tue, Jun 9, 2009 at 4:26 PM, Dave Newton wrote: > fireapple wrote: >> >> If I want to persist images to the hard drive of server. Shall I persist >> the >> data inside WAR or outside? Because user can change their portrait, d

Re: Performance issue with large data(such as images)

2009-06-09 Thread Dave Newton
fireapple wrote: If I want to persist images to the hard drive of server. Shall I persist the data inside WAR or outside? Because user can change their portrait, does it mean it must be persisted outside WAR? You can't write stuff into your WAR. Dave --

Re: Performance issue with large data(such as images)

2009-06-09 Thread fireapple
Richard Sayre wrote: > > You should persist the images as bytes, in a binary field or something > similar. > >> 1. Because the image is large, it's not efficient to store it in >> objects(beans). > > Well this depends on the Bean. Is the bean stored in session? If yes > then it will take up

Re: Performance issue with large data(such as images)

2009-06-09 Thread Richard Sayre
You should persist the images as bytes, in a binary field or something similar. > 1. Because the image is large, it's not efficient to store it in > objects(beans). Well this depends on the Bean. Is the bean stored in session? If yes then it will take up some memory. If you dont have alot of m