Correcting delete errors

When I initially created a simple BOINC test server and project, I had the permissions set incorrectly on the projects/PROJECT_NAME/upload directory. This resulted in a number of "delete file" errors from file_deleter. This is easily corrected.

Edit config.xml so that the file_deleter line contains the -retry_error switch, for example:

file_deleter -d 3 -retry_error

Then a simple:

$ bin/stop && bin/start

will restart the file deleter and it will retry the files that previously generated errors.

When I did this the size of the upload directory dropped in half.