Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

I don't exactly know the current setup, but here's my guess based on what I've gleaned. There are 2 distinct machines serving as web servers for PM. They do not share any filesystems. There is another machine serving as a database server. Both web servers use a this server as a data backend.

Since no filesystems are shared between the two webservers, files (i.e. user node images) uploaded to one server are not automatically shared with the other server. This means that if you add a user image, it matters which of the two web servers you hit: you (and others) will only see the updated image from one of the two servers.

By using the database server to store the images, the images are automatically available to both web servers, since they already make routine connections to the database server for data. This means that either web server can retrieve *or* update the single image stored in the shared data store. Even if you have another web server serving just images, you still have to coordinate getting the uploaded images to the image serving server from whichever web server they are uploaded to.

The adopted solution is an elegant use of available resources. If implemented, a caching system could allay most concerns of waste (which will likely not be borne out in practice).


In reply to Re: Re: User Image Uploading Works Again by mdillon
in thread User Image Uploading Works Again by ar0n

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



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others perusing the Monastery: (5)
As of 2021-11-29 08:43 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?