/[mon-modules]/sap.monitor
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 1.1.1.1 by dpavlin, Tue Jul 9 14:06:45 2002 UTC revision 1.13 by dpavlin, Thu Oct 2 08:18:32 2003 UTC
# Line 1  Line 1 
1  #!/usr/bin/perl -w  #!/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;  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    # sapinfo timeout
33    my $sapinfo_timeout = 10;
34    
35    my %opts;
36    getopt('h:s:H:S:', \%opts);
37    
38  my @config;  my @config;
39  open(C,"/usr/local/etc/sap-mon.conf") || die "sap-mon.conf: $!";  open(C, $CONFIG) || die "sap-mon.conf: $!";
40  @config = <C>;  @config = <C>;
41  close(C);  close(C);
42    
# Line 20  foreach (@config) { Line 53  foreach (@config) {
53          chomp;          chomp;
54          s/#.+$//g;      # nuke comments          s/#.+$//g;      # nuke comments
55          s/^\s+$//g;     # remove empty lines          s/^\s+$//g;     # remove empty lines
56          my ($ashost,$sysnr) = split(/\t+/,$_,2);          my ($ashost,$sysnr,undef) = split(/\s+/,$_,3);
57          if ($ashost && $ashost ne "" && $sysnr && $sysnr ne "") {          if ($ashost && $ashost ne "" && $sysnr && $sysnr ne "" &&
58                  my $output = `/usr/local/bin/sapinfo trace=0 ashost=$ashost sysnr=$sysnr`;                  (($opts{h} && $ashost =~ m/$opts{h}/) || not $opts{h}) &&
59                  $output =~ m/System ID\s+(\w+)/;                  (($opts{s} && $sysnr  =~ m/$opts{s}/) || not $opts{s}) &&
60                  my $sys_id = $1 || "";                  (($opts{H} && $ashost !~ m/$opts{H}/) || not $opts{H}) &&
61                  if ($? != 0) {                  (($opts{S} && $sysnr  !~ m/$opts{S}/) || not $opts{S}) ) {
62                    my $ret = 1;
63                    my $loop = 0;
64                    my $output;
65                    my $sys_id;
66                    for(my $i=0; $i<$repeat; $i++) {
67                            eval {
68                                    local $SIG{ALRM} = sub { die "timeout\n"; };
69                                    alarm $sapinfo_timeout; # wait for sapinfo to finish
70                                    $output = `$SAPINFO trace=0 ashost=$ashost sysnr=$sysnr`;
71                            };
72                            alarm 0; # turn alarm off
73                            undef $sys_id;
74                            $output = "" if (! defined $output);
75                            if ($output =~ m/System\s+ID\s+(\w+)/i) {
76                                    $sys_id = $1;
77                                    last;
78                            }
79    #                       print "$loop: $ashost $sysnr $ret\n";
80                            $loop++;
81                            sleep $repeat_wait;
82                    }
83                    if (! $sys_id) {
84                          push @failed, "$ashost ($sysnr)";                          push @failed, "$ashost ($sysnr)";
85                          $fail_msg .= $output;                          $fail_msg .= $output;
86                  } else {                  } else {
# Line 37  foreach (@config) { Line 92  foreach (@config) {
92  my $exit = 0;  my $exit = 0;
93    
94  if (@failed) {  if (@failed) {
95          print "FAILED HOSTS: ",join(", ",@failed),"\n\n";          print join(", ",@failed)," FAILED\n\n";
96          print "$fail_msg\n";          print "$fail_msg\n";
97          $exit = 1;          $exit = 1;
98  }  }
99    
100  print "CHECKED HOSTS (which are OK): ",join(", ",@ok),"\n\n";  print "ALL OK\nCHECKED HOSTS (which are OK): ",join(", ",@ok),"\n\n";
101    
102  rmdir "/tmp/sap$$"              || die "can't rmdir in /tmp/sap$$: $!";  rmdir "/tmp/sap$$"              || die "can't rmdir in /tmp/sap$$: $!";
103    
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