running a process like this which takes a long time (especially a day or more!) from a web request is not really a good idea. It will be using one of the web request threads for all that time.

A better solution would be to kick off a job elsewhere and release the web request thread. You can do this by putting a job on a job queue (have a look at beanstalk) then as soon as you have done this, return 'success' to the requesting web page. (success that you have scheduled the job).

Then another process which is running as a client would take this job and process it. It can output it's current status and percentage done to a file. Another AJAX web request can interrogate that file and immediately return the job status.

If you are only running one of these big jobs at a time then a single job queue client will suffice. If you want to run more in parallel then just run more clients.

What is happening here is that each job client is running as a separate operating system process which means you don't have to worry about multi-threading.

In reply to Re^2: Providing feedback to Web GUI (Mojolicious) by Anonymous Monk
in thread Providing feedback to Web GUI (Mojolicious) by Endless

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.