support/log_server_status.in

#!@perlbin@
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
# Log Server Status
# Mark J Cox, UK Web Ltd 1996, mark ukweb.com
#
# This script is designed to be run at a frequent interval by something
# like cron.  It connects to the server and downloads the status
# information.  It reformats the information to a single line and logs
# it to a file.  Make sure the directory $wherelog is writable by the
# user who runs this script.
#
use IO::Socket;
use strict;
use warnings;

my $wherelog = "@exp_logfiledir@/";  # Logs will be like "@exp_logfiledir@/19960312"
my $server   = "localhost";        # Name of server, could be "www.foo.com"
my $port     = "@PORT@";               # Port on server
my $request = "/server-status/?auto";    # Request to send

my @ltime = localtime(time);

my $day =
    $ltime[5] + 1900
  . sprintf( "%02d", $ltime[4] + 1 )
  . sprintf( "%02d", $ltime[3] );

my $time =
    sprintf( "%02d", $ltime[2] )
  . sprintf( "%02d", $ltime[1] )
  . sprintf( "%02d", $ltime[0] );

open(OUT,">>$wherelog$day");

my $socket = new IO::Socket::INET(
    PeerAddr => $server,
    PeerPort => $port,
    Proto    => "tcp",
    Type     => SOCK_STREAM
  )
  or do {
    print OUT "$time:-1:-1:-1:-1:$@\n";
    close OUT;
    die "Couldn't connect to $server:$port : $@\n";
  };
$| = 1;

print $socket
  "GET $request HTTP/1.1\r\nHost: $server\r\nConnection: close\r\n\r\n\r\n";

my ( $requests, $idle, $number, $cpu );
while (<$socket>) {
    $requests = $1 if (m|^BusyWorkers:\ (\S+)|);
    $idle     = $1 if (m|^IdleWorkers:\ (\S+)|);
    $number   = $1 if (m|sses:\ (\S+)|);
    $cpu      = $1 if (m|^CPULoad:\ (\S+)|);
}
print OUT "$time:$requests:$idle:$number:$cpu\n";
close OUT;