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I was originally going to use a DB_File (Any_DBM, actually) database, but as far as I know, they don't allow for HoHs.

Although, as gjb suggested, you can use MLDBM or you can use Data::Dumper or Storable to serialize your data structure by hand, the truth is that you don't even need an HoH in your case. You are storing the same data for each IP: visits and a timestamp. I would just store the two values in a single scalar delimited by a non-digit character of your choosing. (Consider using a comma, space, colon, semicolon, or pipe symbol as they are all commonly used for this kind of thing.) The right rule of thumb to follow in this case is "keep it simple."

-sauoq
"My two cents aren't worth a dime.";

In reply to Re: Re^2: (nrd) When does XML get to be too much? by sauoq
in thread When does XML get to be too much? by newrisedesigns

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    [ambrus]: ah, it's one of thos
    [Eily]: what, there's a difference between proof of concept and production?
    [LanX]: 20 years ago traders were complaining about the latency of the trading system...
    [ambrus]: I'm currently in the process of rewriting my proof of concept programs. They sort of developped organically as I was experimenting, so now I've got an ugly mess of multiple programs and one-liners held together by nothing. I'll have to rewrite them to som
    [ambrus]: ething that's both cleanly organized and mostly automated.
    LanX in train, bad connection
    [Corion]: ambrus: Yeah - we're in that situation too, except that there is no time to do the reorganizing :-/
    [LanX]: ... so my boss started a project with the newest sun servers and invited the traders to come on weekend to test it... and they were so pleased, that they forced him to keep it in production...
    [ambrus]: Corion: sure, this is the long-term plan. The short term is that I have to run this ungodly mess to get results from the new input data today.

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