Hi All,
  I've written a piece of tracking software that records clicks to a database, checking to see which are unique. Basic logic:-
Click comes in
Check IP against database
Record click to database
This works fine for low traffic sites, but when you get higher traffic with potentially several hits a second the database quickly get's up to 100MB and checking for that unique IP before recording the click really hits the CPU.
I've come up with this solution that uses a temporary flatfile before bulk checking and inserting to the database.
    my $maxsize = 1024;
    my $maxtime = 30;

    my ($fsize, $ftime) = (stat("click.save"))[7,9];

    open(OUTF, ">>click.save");
        print OUTF "$ENV{REMOTE_ADDR}|$date|$timestamp\n";
    close(OUTF);
    
    if ($fsize > $maxsize || ($ftime + $maxtime) < time) {
        #### Checks all IP's against database using an sql 'WHERE ip I
+N ('111.111.111.111, '...)' to find if unique
        #### Does a bulk insert in one call to the db
    }#if

[download]
I skipped a load of code so it would be easier to read. I've use Benchmark; 'ed this to find it's about 10 times faster.

What do you guys think? Comments and suggestions welcome.


Lyle

In reply to Hit tracking optimization... by cosmicperl

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