line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
|
|
|
|
|
|
|
=head1 NAME |
2
|
|
|
|
|
|
|
|
3
|
|
|
|
|
|
|
AnyEvent::MP::LogCatcher - catch all logs from all nodes |
4
|
|
|
|
|
|
|
|
5
|
|
|
|
|
|
|
=head1 SYNOPSIS |
6
|
|
|
|
|
|
|
|
7
|
|
|
|
|
|
|
use AnyEvent::MP::LogCatcher; |
8
|
|
|
|
|
|
|
|
9
|
|
|
|
|
|
|
=head1 DESCRIPTION |
10
|
|
|
|
|
|
|
|
11
|
|
|
|
|
|
|
This relatively simple module overrides C<$AnyEvent::MP::Kernel::WARN> on |
12
|
|
|
|
|
|
|
every node and sends all log messages to the node running this service. |
13
|
|
|
|
|
|
|
|
14
|
|
|
|
|
|
|
No attempt to buffer log messages on connection loss, or retransmit lost |
15
|
|
|
|
|
|
|
messages, is done. |
16
|
|
|
|
|
|
|
|
17
|
|
|
|
|
|
|
=head1 GLOBALS AND FUNCTIONS |
18
|
|
|
|
|
|
|
|
19
|
|
|
|
|
|
|
=over 4 |
20
|
|
|
|
|
|
|
|
21
|
|
|
|
|
|
|
=cut |
22
|
|
|
|
|
|
|
|
23
|
|
|
|
|
|
|
package AnyEvent::MP::LogCatcher; |
24
|
|
|
|
|
|
|
|
25
|
1
|
|
|
1
|
|
1206
|
use common::sense; |
|
1
|
|
|
|
|
1
|
|
|
1
|
|
|
|
|
6
|
|
26
|
1
|
|
|
1
|
|
39
|
use Carp (); |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
15
|
|
27
|
1
|
|
|
1
|
|
5
|
use POSIX (); |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
21
|
|
28
|
|
|
|
|
|
|
|
29
|
1
|
|
|
1
|
|
5
|
use AnyEvent (); |
|
1
|
|
|
|
|
1
|
|
|
1
|
|
|
|
|
15
|
|
30
|
1
|
|
|
1
|
|
5
|
use AnyEvent::Util (); |
|
1
|
|
|
|
|
1
|
|
|
1
|
|
|
|
|
22
|
|
31
|
|
|
|
|
|
|
|
32
|
1
|
|
|
1
|
|
45
|
use AnyEvent::MP; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
33
|
|
|
|
|
|
|
use AnyEvent::MP::Kernel; |
34
|
|
|
|
|
|
|
|
35
|
|
|
|
|
|
|
use base "Exporter"; |
36
|
|
|
|
|
|
|
|
37
|
|
|
|
|
|
|
$AnyEvent::MP::Kernel::WARN->(7, "starting log catcher service."); |
38
|
|
|
|
|
|
|
|
39
|
|
|
|
|
|
|
our $LOGLEVEL; |
40
|
|
|
|
|
|
|
our %lport; # local logging ports |
41
|
|
|
|
|
|
|
|
42
|
|
|
|
|
|
|
# other nodes connect via this |
43
|
|
|
|
|
|
|
sub connect { |
44
|
|
|
|
|
|
|
my ($version, $rport, $loglevel) = @_; |
45
|
|
|
|
|
|
|
|
46
|
|
|
|
|
|
|
my $cb = sub { |
47
|
|
|
|
|
|
|
snd $rport, @_ |
48
|
|
|
|
|
|
|
if $_[0] <= $loglevel; |
49
|
|
|
|
|
|
|
}; |
50
|
|
|
|
|
|
|
|
51
|
|
|
|
|
|
|
push @AnyEvent::MP::Kernel::WARN, $cb; |
52
|
|
|
|
|
|
|
|
53
|
|
|
|
|
|
|
# monitor them, silently die |
54
|
|
|
|
|
|
|
mon $rport, sub { |
55
|
|
|
|
|
|
|
@AnyEvent::MP::Kernel::WARN = grep $_ != $cb, @AnyEvent::MP::Kernel::WARN; |
56
|
|
|
|
|
|
|
}; |
57
|
|
|
|
|
|
|
} |
58
|
|
|
|
|
|
|
|
59
|
|
|
|
|
|
|
sub mon_node { |
60
|
|
|
|
|
|
|
my ($node, $is_up) = @_; |
61
|
|
|
|
|
|
|
|
62
|
|
|
|
|
|
|
return unless $is_up; |
63
|
|
|
|
|
|
|
|
64
|
|
|
|
|
|
|
my $lport = $lport{$node} = port { |
65
|
|
|
|
|
|
|
my ($level, $msg) = @_; |
66
|
|
|
|
|
|
|
|
67
|
|
|
|
|
|
|
$msg =~ s/\n$//; |
68
|
|
|
|
|
|
|
|
69
|
|
|
|
|
|
|
printf STDERR "%s [%s] <%d> %s\n", |
70
|
|
|
|
|
|
|
(POSIX::strftime "%Y-%m-%d %H:%M:%S", localtime time), |
71
|
|
|
|
|
|
|
$node, |
72
|
|
|
|
|
|
|
$level, |
73
|
|
|
|
|
|
|
$msg; |
74
|
|
|
|
|
|
|
}; |
75
|
|
|
|
|
|
|
|
76
|
|
|
|
|
|
|
# establish connection |
77
|
|
|
|
|
|
|
AnyEvent::MP::Kernel::snd_to_func $node, "AnyEvent::MP::LogCatcher::connect", 0, $lport, $LOGLEVEL; |
78
|
|
|
|
|
|
|
|
79
|
|
|
|
|
|
|
mon $node, $lport; |
80
|
|
|
|
|
|
|
} |
81
|
|
|
|
|
|
|
|
82
|
|
|
|
|
|
|
=item AnyEvent::MP::LogCatcher::catch [$level] |
83
|
|
|
|
|
|
|
|
84
|
|
|
|
|
|
|
Starts catching all log messages from all nodes with level C<$level> or |
85
|
|
|
|
|
|
|
lower. If the C<$level> is C<undef>, then stop catching all messages |
86
|
|
|
|
|
|
|
again. |
87
|
|
|
|
|
|
|
|
88
|
|
|
|
|
|
|
Example: start a node that catches all messages (you might have to specify |
89
|
|
|
|
|
|
|
a suitable profile name). |
90
|
|
|
|
|
|
|
|
91
|
|
|
|
|
|
|
aemp run profilename services '[["AnyEvent::MP::LogCatcher::catch",9]]' |
92
|
|
|
|
|
|
|
|
93
|
|
|
|
|
|
|
=cut |
94
|
|
|
|
|
|
|
|
95
|
|
|
|
|
|
|
sub catch { |
96
|
|
|
|
|
|
|
$LOGLEVEL = $_[0]; |
97
|
|
|
|
|
|
|
kil $_, "restart" for values %lport; |
98
|
|
|
|
|
|
|
%lport = (); |
99
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
return unless defined $LOGLEVEL; |
101
|
|
|
|
|
|
|
|
102
|
|
|
|
|
|
|
mon_node $_, 1 |
103
|
|
|
|
|
|
|
for up_nodes; |
104
|
|
|
|
|
|
|
|
105
|
|
|
|
|
|
|
mon_nodes \&mon_node; |
106
|
|
|
|
|
|
|
() |
107
|
|
|
|
|
|
|
} |
108
|
|
|
|
|
|
|
|
109
|
|
|
|
|
|
|
=back |
110
|
|
|
|
|
|
|
|
111
|
|
|
|
|
|
|
=head1 SEE ALSO |
112
|
|
|
|
|
|
|
|
113
|
|
|
|
|
|
|
L<AnyEvent::MP>. |
114
|
|
|
|
|
|
|
|
115
|
|
|
|
|
|
|
=head1 AUTHOR |
116
|
|
|
|
|
|
|
|
117
|
|
|
|
|
|
|
Marc Lehmann <schmorp@schmorp.de> |
118
|
|
|
|
|
|
|
http://home.schmorp.de/ |
119
|
|
|
|
|
|
|
|
120
|
|
|
|
|
|
|
=cut |
121
|
|
|
|
|
|
|
|
122
|
|
|
|
|
|
|
1 |
123
|
|
|
|
|
|
|
|