SteveMarpleScratchPad < Main

Main Web>TWikiUsers>SteveMarple>SteveMarpleScratchPad (2007-01-25, SteveMarple) (raw view)EditAttach

---+ Scratch Pad

   * <strike>Have GAIA produce a config script for Apache from its own server_config.php file. Allow it to be generated as a commmand-line function only! (Or maybe from localhost).</strike><br> %ICONURL{done}%


   * <strike>Have a =definitions.js= !JavaScript page which is created by PHP, which defines useful URLs, etc. Then knowledge only needs to be embedded in the database, and maybe some PHP scripts (eg =server_config.php=).</strike><br> %ICONURL{done}%

   * Configure Apache so that missing accesses to a cached data directory call a PHP (or Perl?) script which untars images for the selected day to the data directory.
      * Have some kind of lock file using symbolic links (atomic) which prevent race conditions.
      * The untarred images should be kept somewhere different to the original tar files, so that =tmpwatch= can be used safely.     
      * For optimum performance the cached data directory should be operating on a filesystem with =atime= enabled.
      * Image-colourising and rotation options create different versions of cached images.
      * Ensure the =apache= configuration script sets appropriate headers so that images are cached for a reasonable amount of time to reduce load on the web server.
      * Consider use of =mod_asis=; if the images are prepended with HTTP headers they can be sent 'as is', which may provide a reduced latency, or increased delay when untarring.

   * In the database create a =project_pi= table, with columns =project_id=, and =contact_id=. This allows mutliple PIs for each project. Create a similar tables =project_contacts= and project_institutes. Remove the =pi_id= and =contact[1-4]_id= columns from the =programs= table. Rename =programs= table to =projects= to follow THEMIS notation and avoid confusion with the term _computer program_.

Topic revision: r4 - 2007-01-25 - 06:48:45 - SteveMarple

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