12-17-2007
Possible but very highly unlikely if the second option above is followed, or an extension of using two touch files on a round robin and touching before find could be used that would definitely not fail.
Either way it is simpler and more efficient than comparing directory listing.
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LEARN ABOUT SUSE
log::log4perl::appender::rrds
Appender::RRDs(3) User Contributed Perl Documentation Appender::RRDs(3)
NAME
Log::Log4perl::Appender::RRDs - Log to a RRDtool Archive
SYNOPSIS
use Log::Log4perl qw(get_logger);
use RRDs;
my $DB = "myrrddb.dat";
RRDs::create(
$DB, "--step=1",
"DS:myvalue:GAUGE:2:U:U",
"RRA:MAX:0.5:1:120");
print time(), "
";
Log::Log4perl->init(qq{
log4perl.category = INFO, RRDapp
log4perl.appender.RRDapp = Log::Log4perl::Appender::RRDs
log4perl.appender.RRDapp.dbname = $DB
log4perl.appender.RRDapp.layout = Log::Log4perl::Layout::PatternLayout
log4perl.appender.RRDapp.layout.ConversionPattern = N:%m
});
my $logger = get_logger();
for(10, 15, 20, 25) {
$logger->info($_);
sleep 1;
}
DESCRIPTION
"Log::Log4perl::Appender::RRDs" appenders facilitate writing data to RRDtool round-robin archives via Log4perl. For documentation on RRD
and its Perl interface "RRDs" (which comes with the distribution), check out <http://rrdtool.org>.
Messages sent to Log4perl's RRDs appender are expected to be numerical values (ints or floats), which then are used to run a "rrdtool
update" command on an existing round-robin database. The name of this database needs to be set in the appender's "dbname" configuration
parameter.
If there's more parameters you wish to pass to the "update" method, use the "rrdupd_params" configuration parameter:
log4perl.appender.RRDapp.rrdupd_params = --template=in:out
To read out the round robin database later on, use "rrdtool fetch" or "rrdtool graph" for graphic displays.
COPYRIGHT AND LICENSE
Copyright 2002-2009 by Mike Schilli <m@perlmeister.com> and Kevin Goess <cpan@goess.org>.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.1 2010-02-07 Appender::RRDs(3)