I have no conclusions or solutions to offer, but an observation prompted by my own limited experience of using select. It might prompt others to authoritative answers.

You are not handling error conditions. The 4-arg select is defined as select RBITS,WBITS,EBITS,TIMEOUT where EBITS are those streams in your select group that have experienced error conditions.

My touchy-feely findings are that unless you handle those--using shutdown & close--you will be subject to a the default timeout which is often set to 900 seconds. Ie. 15 minutes. If, when your code freezes on you, you wait 15 minutes or so, you may find that it starts working again. Not a tenable situation, but it might help point to a fix. Or not!

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"I'd rather go naked than blow up my ass"

In reply to Re: socket select hangs after client restarts by BrowserUk
in thread socket select hangs after client restarts by planetjeff

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.