| 1 |
#!/usr/bin/perl -w |
| 2 |
# File: sap.monitor |
| 3 |
# Author: Dobrica Pavlinusic, dpavlin@rot13.org |
| 4 |
# http://www.rot13.org/~dpavlin/sysadm.html |
| 5 |
# Description: monitor sap servers using sapinfo from RFCSDK |
| 6 |
# |
| 7 |
# Usage: sap.monitor [-[hH] ashost only/ignore] [-[sS] sysnr only/ignore] |
| 8 |
# |
| 9 |
# e.g. sap.monitor -s 20 will scan only hosts with sysnr == 20 |
| 10 |
# sap.monitor -S 20 will scan only hosts with sysnr != 20 |
| 11 |
|
| 12 |
# configuration file in /usr/local/etc/sap-mon.conf describes which |
| 13 |
# hosts (ashost) and systems (sysnr) you want to check. |
| 14 |
# |
| 15 |
# format of line is: |
| 16 |
# |
| 17 |
# ashost [tab|space] sysnr # optional comment |
| 18 |
# |
| 19 |
# you can spacify host as hostname (sap01) or with sap routers in-between |
| 20 |
# to test routers too (/H/saprtr/H/sap01) |
| 21 |
|
| 22 |
use strict; |
| 23 |
use Getopt::Std; |
| 24 |
|
| 25 |
# change paths here if you want to |
| 26 |
my $CONFIG = "/usr/local/etc/sap-mon.conf"; |
| 27 |
my $SAPINFO = "/usr/local/bin/sapinfo"; |
| 28 |
# number of tries to repeat sapinfo if it fails first time |
| 29 |
my $repeat = 3; |
| 30 |
# seconds to wait between retries |
| 31 |
my $repeat_wait = 5; |
| 32 |
|
| 33 |
my %opts; |
| 34 |
getopt('h:s:H:S:', \%opts); |
| 35 |
|
| 36 |
my @config; |
| 37 |
open(C, $CONFIG) || die "sap-mon.conf: $!"; |
| 38 |
@config = <C>; |
| 39 |
close(C); |
| 40 |
|
| 41 |
my @failed; |
| 42 |
my @ok; |
| 43 |
my $fail_msg = ""; |
| 44 |
|
| 45 |
# sap info leaves trace files, so create dir without write permission |
| 46 |
# and chdir to it! |
| 47 |
mkdir "/tmp/sap$$",0555 || die "can't make /tmp/sap$$: $!"; |
| 48 |
chdir "/tmp/sap$$" || die "can't chdir in /tmp/sap$$: $!"; |
| 49 |
|
| 50 |
foreach (@config) { |
| 51 |
chomp; |
| 52 |
s/#.+$//g; # nuke comments |
| 53 |
s/^\s+$//g; # remove empty lines |
| 54 |
my ($ashost,$sysnr,undef) = split(/\s+/,$_,3); |
| 55 |
if ($ashost && $ashost ne "" && $sysnr && $sysnr ne "" && |
| 56 |
(($opts{h} && $ashost =~ m/$opts{h}/) || not $opts{h}) && |
| 57 |
(($opts{s} && $sysnr =~ m/$opts{s}/) || not $opts{s}) && |
| 58 |
(($opts{H} && $ashost !~ m/$opts{H}/) || not $opts{H}) && |
| 59 |
(($opts{S} && $sysnr !~ m/$opts{S}/) || not $opts{S}) ) { |
| 60 |
my $ret = 1; |
| 61 |
my $loop = 0; |
| 62 |
my $output; |
| 63 |
my $sys_id; |
| 64 |
for(my $i=0; $i<$repeat; $i++) { |
| 65 |
eval { |
| 66 |
local $SIG{ALRM} = sub { die "timeout\n"; }; |
| 67 |
alarm 30; # wait for sapinfo to finish |
| 68 |
$output = `$SAPINFO trace=0 ashost=$ashost sysnr=$sysnr`; |
| 69 |
}; |
| 70 |
alarm 0; # turn alarm off |
| 71 |
undef $sys_id; |
| 72 |
$output = "" if (! defined $output); |
| 73 |
if ($output =~ m/System\s+ID\s+(\w+)/i) { |
| 74 |
$sys_id = $1; |
| 75 |
last; |
| 76 |
} |
| 77 |
# print "$loop: $ashost $sysnr $ret\n"; |
| 78 |
$loop++; |
| 79 |
sleep $repeat_wait; |
| 80 |
} |
| 81 |
if (! $sys_id) { |
| 82 |
push @failed, "$ashost ($sysnr)"; |
| 83 |
$fail_msg .= $output; |
| 84 |
} else { |
| 85 |
push @ok, "$ashost ($sys_id)"; |
| 86 |
} |
| 87 |
} |
| 88 |
} |
| 89 |
|
| 90 |
my $exit = 0; |
| 91 |
|
| 92 |
if (@failed) { |
| 93 |
print join(", ",@failed)," FAILED\n\n"; |
| 94 |
print "$fail_msg\n"; |
| 95 |
$exit = 1; |
| 96 |
} |
| 97 |
|
| 98 |
print "ALL OK\nCHECKED HOSTS (which are OK): ",join(", ",@ok),"\n\n"; |
| 99 |
|
| 100 |
rmdir "/tmp/sap$$" || die "can't rmdir in /tmp/sap$$: $!"; |
| 101 |
|
| 102 |
exit $exit; |
Parent Directory
| 
Revision Log