Changeset 28615 for trunk/ippMonitor/def/README

Timestamp:

Jul 6, 2010, 1:20:48 PM (16 years ago)

Author:

Serge CHASTEL

Message:

Bug fix for tmp files deletion (doc)

File:

• trunk/ippMonitor/def/README (modified) (1 diff)

trunk/ippMonitor/def/README

@@ -161 +161 @@
         Regression line is also plotted (correlation coefficient is
         shown in title).
+
+Plotting with PHP and temporary files
+=====================================
+
+Plots in PHP use temporary files (to provide data to dvo scripts and
+to store result images). Unfortunately, if the files are deleted at
+the end of main php script, the browser does not have the time to
+render the image. If the file is not deleted, they remain in the /tmp
+directory leading to disk space exhaustion.
+
+To avoid this problem, the function delete_old_tmp_files() in ipp.php
+was created. It checks the /tmp directory and removes all files
+belonging to the apache user and that are older than 15 minutes.
+delete_old_tmp_files() is called at the beginning of the
+autocodeImage.php template script (line 4) and is therefore present in
+all generated plotting scripts.