I encountered a persistent problem with corrupted uploads after installing Drupal 5.1. I am able to upload attachments without seeing any error messages. The uploaded files are saved in the files directory and are accessible over the web (as well as via FTP).
However, the files are badly corrupted. For example, I was unable to open a previously uploaded .gif image in any web browser or image viewer. When I opened that file in a text editor, I discovered some chunks of code that clearly should not belong in the .gif image. An illustration of these unexpected pieces of code is provided below. This problem occurs with all file types and a variety of browsers that I used. The web server's configuration info is provided at the bottom of this post.
I would greatly appreciate your advice in resolving this problem.
Thank you!
Example of extraneous code that appeared at the top of a corrupted .gif image that was uploaded via Drupal
Caching of menus and blocks in xml can reduce a large no of queries from db.
When a user opens site, an xml cache is created for the menus and blocks (all the menus and block settings for guest users) will be cached. So when user goes to another page menus and block will populated from xml cache files. It will reduce large amount of load from server. Less no of queries will be executed for every page load.
When user login then xml cache files will be updated according user's role.
-----
Sharique uddin Ahmed Farooqui
IT head, Managefolio.com
MySql have been matured and so Drupal. But Drupal doesn't utilities it's new features, like relations, views, etc. It think will improve performance and reduce no of queries, there many other advantages can gained by relational DB design.
Is Drupal 6 is going to use these new DB/Mysql features?
-----------
Sharique uddin Ahmed Farooqui
IT head, Managefolio.com
i want to develope 4 sites in drupal, and the drupal instance must be single. This is the simple thing and which has also been developed by me but now what i want is that a single admin can handle all this four sites using same login.
for example if admin logged in any site and he want to change the content of any site's any page then he/she can do that without logged in again.
It should be like super admin of all sites. can manage all site's content without logged in as admin to the ohter site.