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root/i-scream/experimental/reports/queuegraphing/watch.pl
Revision: 1.2
Committed: Sun Oct 21 18:57:40 2001 UTC (23 years ago) by tdb
Content type: text/plain
Branch: MAIN
Changes since 1.1: +11 -24 lines
Log Message:
Now cable to detect when queue's have been deleted. Still need to watch out
for a Queue being shutdown though. When a queue is deleted it's rrd is
removed, and it's def file cleaned up if there are no other rrds associated
with the Queue. All the png images are cleaned up, as they will be remade
later on.

File Contents

# User Rev Content
1 tdb 1.1 #!/usr/local/bin/perl -w
2    
3     $| = 1;
4    
5     use strict;
6     use iscream::XMLParser;
7     use IO::Socket;
8    
9     if (@ARGV != 2) {
10     die "Usage: ihost.pl [i-scream client interface] [TCP port]\n";
11     }
12    
13     my($addr) = $ARGV[0];
14     my($cport) = $ARGV[1];
15    
16     my($csock) = new IO::Socket::INET(
17     PeerAddr => $addr,
18     PeerPort => $cport,
19     Proto => 'tcp'
20     ) or die "Cannot connect!";
21    
22     if (!defined $csock) {
23     print "ERROR: Could not connect to $addr:$cport.\n";
24     print "Please check that there is an i-scream server at this address.\n";
25     exit(1);
26     }
27    
28     my($response);
29    
30     $response = <$csock>;
31     if ($response && $response ne "PROTOCOL 1.1\n") {
32     print "The i-scream server sent an unexpected protocol id: $response\n";
33     close($csock);
34     exit(1);
35     }
36    
37     print $csock "queuegrapher\n";
38     $response = <$csock>;
39     if ($response && $response ne "OK\n") {
40     print "Received unexpected response: $response\n";
41     close($csock);
42     exit(1);
43     }
44    
45     print $csock "SETHOSTLIST\n";
46     $response = <$csock>;
47     if ($response && $response ne "OK\n") {
48     print "Received odd response: $response\n";
49     close($csock);
50     exit(1);
51     }
52    
53     print $csock "_NULL_\n";
54     $response = <$csock>;
55     if ($response && $response ne "OK\n") {
56     print "Received odd response: $response\n";
57     close($csock);
58     exit(1);
59     }
60    
61     print $csock "STARTDATA\n";
62     $response = <$csock>;
63    
64     chop $response;
65     print "Asked to connect to port $response on $addr, connecting...\n";
66    
67     my($dport) = $response;
68    
69     my($dsock) = new IO::Socket::INET(
70     PeerAddr => $addr,
71     PeerPort => $dport,
72     Proto => 'tcp'
73     ) or die "Cannot connect!";
74    
75     if (!defined $dsock) {
76     print "ERROR: Could not connect to $addr:$dport.\n";
77     print "Failure in communications.\n";
78     close($csock);
79     exit(1);
80     }
81    
82     while(1) {
83     $response = <$dsock>;
84     my($err, %xmlhash) = &iscream::XMLParser::parse($response);
85     if($err) {
86     print "SKIPPED (bad xml): $response";
87     }
88     #foreach my $key (keys %xmlhash) {
89     # print "$key == $xmlhash{$key}\n";
90     #}
91     if($xmlhash{"packet.attributes.type"} eq "queueStat") {
92     my($hash) = $xmlhash{"packet.attributes.hashCode"};
93     my($date) = $xmlhash{"packet.attributes.date"};
94     my($name) = $xmlhash{"packet.attributes.name"};
95     my($total) = $xmlhash{"packet.queue.attributes.total"};
96     my($i) = 0;
97     while(defined $xmlhash{"packet.queue.attributes.queue$i"}) {
98     if( ! -f "$hash\_$i.rrd" ) {
99     print "making new database for $hash\_$i\n";
100     &makerrd($hash, $i, $date, $name);
101     }
102     my($size) = $xmlhash{"packet.queue.attributes.queue$i"};
103 tdb 1.2 my($cmd);
104     if($size eq "[deleted]") {
105     $cmd = "rm -f $hash\_$i.rrd $hash*.png";
106     my($rrdcount) = `ls | grep $hash\_\\*.rrd | wc -l`;
107     if($rrdcount == 0) {
108     $cmd = $cmd . " && rm -f $hash.def";
109     }
110     }
111     else {
112     $cmd = "rrdtool update $hash\_$i.rrd $date:$size:$total";
113     }
114 tdb 1.1 print `$cmd`;
115     print "$cmd\n";
116     ++$i;
117     }
118     }
119     else {
120     print "SKIPPED: valid xml, but not a queueStat packet";
121     }
122     }
123    
124     exit 0;
125    
126     sub makerrd() {
127     my($name, $queuenum, $start, $comment) = @_;
128     $start = $start - 15;
129     my($init) = "rrdtool create $name\_$queuenum.rrd --start $start --step 15";
130     my($ds) = "DS:size:GAUGE:600:U:U DS:total:COUNTER:600:U:U";
131     # 3h in 15s samples 1d in 2m samples 1w in 15m samples 1m in 1hr samples
132     my($rra1) = "RRA:AVERAGE:0.5:1:720 RRA:AVERAGE:0.5:8:720 RRA:AVERAGE:0.5:60:672 RRA:AVERAGE:0.5:240:744";
133     my($rra2) = "RRA:MAX:0.5:1:720 RRA:MAX:0.5:8:720 RRA:MAX:0.5:60:672 RRA:MAX:0.5:60:744";
134     my($cmd) = "$init $ds $rra1 $rra2";
135     print `$cmd`;
136     print "$cmd\n";
137     print `echo "$comment" > $name.def`;
138     }