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Introduction to CloudForecast / YAPC::Asia 2010 Tokyo
1.
Introduction to CloudForecast YAPC::Asia
Tokyo 2010 @kazeburo
2.
3.
4.
CloudForecast
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P
D A C
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P
D A C
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CloudForecast
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# ubuntu $ sudo
apt-get install librrds-perl libsnmp-perl # CentOS (rrdtool EPEL ) $ sudo rpm -Uvh http://download.fedora.redhat.com/ pub/epel/5/x86_64/epel-release-5-4.noarch.rpm $ sudo yum install net-snmp-perl $ sudo yum install rrdtool-perl
34.
$ git clone
git://github.com/kazeburo/cloudforecast.git $ cd cloudforecast $ cpanm -L extlib --installdeps .
35.
# $ cp cloudforecast_sample.yaml
cloudforecast.yaml # $ cp server_list_sample.yaml server_list.yaml
36.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 --- #Production servers: - config: basic.yaml hosts: ....
37.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 --- #Production servers: - config: basic.yaml hosts: ....
38.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 --- #Production servers: - config: basic.yaml hosts: ....
39.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 --- #Production servers: - config: basic.yaml hosts: ....
40.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 --- #Production servers: - config: basic.yaml hosts: ....
41.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 --- #Production servers: - config: basic.yaml hosts: ....
42.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 --- #Production servers: - config: basic.yaml hosts: ....
43.
--- #Dev servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 - 192.168.67.2 server2 --- #Production servers: - config: basic.yaml hosts: ....
44.
--- component_config: resources: -
basic - traffic:eth0
45.
--- component_config: resources: -
basic - traffic:eth0
46.
--- component_config: resources: -
basic - traffic:eth0
47.
48.
49.
$ vim host_config/http8080_memcached11211.yaml --- component_config: resources:
- traffic:eth1 - basic
50.
$ vim host_config/http8080_memcached11211.yaml --- component_config: resources:
- traffic:eth1 - basic - httpd:8080:/server-status?auto - memcached:11211
51.
--- #MYHOME servers:
- config: basic.yaml hosts: - 127.0.0.1 server1 - 192.168.67.2 server2 - config: http8080_memcached11211.yaml label: App hosts: - 192.168.67.10 server3 Web
52.
# $ ./cloudforecast_radar -c
cloudforecast.yaml -l server_list.yaml # Web $ ./cloudforecast_web -p 5000 -c cloudforecast.yaml -l server_list.yaml
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# site-lib $ mkdir
-p site-lib/CloudForecast/Data
65.
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$ telnet localhost
7003 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. status fetcher 10 3 8 updater 4 4 2 ledge 2 2 2 .
67.
$ telnet localhost
7003 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. status fetcher 10 3 8 updater 4 4 2 ledge 2 2 2 .
68.
$ telnet localhost
7003 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. status fetcher 10 3 8 updater 4 4 2 ledge 2 2 2 .
69.
$ telnet localhost
7003 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. status fetcher 10 3 8 updater 4 4 2 ledge 2 2 2 .
70.
$ telnet localhost
7003 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. status fetcher 10 3 8 updater 4 4 2 ledge 2 2 2 .
71.
$ telnet localhost
7003 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. status fetcher 10 3 8 updater 4 4 2 ledge 2 2 2 .
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1: package CloudForecast::Data::Gearmand; 2: 3:
use CloudForecast::Data -base; 4: use IO::Socket::INET; 5: 6: rrds ‘queue’, ‘GAUGE’; 7: rrds ‘proc’, ‘GAUGE’; 8: graphs 'queue' => 'Queue'; 9: ( )
73.
1: package CloudForecast::Data::Gearmand; 2: 3:
use CloudForecast::Data -base; 4: use IO::Socket::INET; 5: 6: rrds ‘queue’, ‘GAUGE’; 7: rrds ‘proc’, ‘GAUGE’; 8: graphs 'queue' => 'Queue'; 9: ( )
74.
1: package CloudForecast::Data::Gearmand; 2: 3:
use CloudForecast::Data -base; 4: use IO::Socket::INET; 5: 6: rrds ‘queue’, ‘GAUGE’; 7: rrds ‘proc’, ‘GAUGE’; 8: graphs 'queue' => 'Queue'; 9: ( )
75.
1: package CloudForecast::Data::Gearmand; 2: 3:
use CloudForecast::Data -base; 4: use IO::Socket::INET; 5: 6: rrds ‘queue’, ‘GAUGE’; 7: rrds ‘proc’, ‘GAUGE’; 8: graphs 'queue' => 'Queue'; 9: ( )
76.
rrds ‘queue’, ‘GAUGE’; #
rrds ‘key’, ‘TYPE’; # rrds [‘key’,‘TYPE’], []..;
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graphs 'queue' =>
'Queue'; # graphs ‘key1’ => ‘label’; # graphs ‘key2’ => ‘the great graph’; #
78.
graphs 'queue' =>
'Queue'; __DATA__ @@ queue DEF:my1a=<%RRD%>:queue:AVERAGE DEF:my2=<%RRD%>:proc:AVERAGE CDEF:my1=my1a,my2,- AREA:my2#0000C0:Running GPRINT:my2:LAST:Cur: %6.1lf GPRINT:my2:AVERAGE:Ave: %6.1lf GPRINT:my2:MAX:Max: %6.1lf GPRINT:my2:MIN:Min: %6.1lfc STACK:my1#00C000:Queue GPRINT:my1:LAST:Cur: %6.1lf GPRINT:my1:AVERAGE:Ave: %6.1lf GPRINT:my1:MAX:Max: %6.1lf GPRINT:my1:MIN:Min: %6.1lfc
79.
fetcher {
my ($queue, $proc) = ( 0, 0 ); my $c = shift; my @sysinfo = qw/job worker/; for my $job ( values %status ) { my $host = $c->address; $queue += $job->[1]; my $port = $c->args->[0] || 7003; $proc += $job->[2]; } my $sock = IO::Socket::INET->new( PeerAddr => $host, return [ $queue, $proc ]; PeerPort => $port, }; ); $sock->syswrite("statusrn"); $sock->sysread( my $raw_status, 8192 ); my %status; foreach my $line ( split /r?n/, $raw_status ) { my @st = split /s+/, $line; next unless @st == 4; $status{$st[0]} = @st; }
80.
fetcher {
my ($queue, $proc) = ( 0, 0 ); my $c = shift; my @sysinfo = qw/job worker/; for my $job ( values %status ) { my $host = $c->address; $queue += $job->[1]; my $port = $c->args->[0] || 7003; $proc += $job->[2]; } my $sock = IO::Socket::INET->new( PeerAddr => $host, return [ $queue, $proc ]; PeerPort => $port, }; ); $sock->syswrite("statusrn"); $sock->sysread( my $raw_status, 8192 ); my %status; foreach my $line ( split /r?n/, $raw_status ) { my @st = split /s+/, $line; next unless @st == 4; $status{$st[0]} = @st; }
81.
fetcher {
my ($queue, $proc) = ( 0, 0 ); my $c = shift; my @sysinfo = qw/job worker/; for my $job ( values %status ) { my $host = $c->address; $queue += $job->[1]; my $port = $c->args->[0] || 7003; $proc += $job->[2]; } my $sock = IO::Socket::INET->new( PeerAddr => $host, return [ $queue, $proc ]; PeerPort => $port, }; ); $sock->syswrite("statusrn"); $sock->sysread( my $raw_status, 8192 ); my %status; foreach my $line ( split /r?n/, $raw_status ) { my @st = split /s+/, $line; next unless @st == 4; $status{$st[0]} = @st; }
82.
#
# title { sysinfo { my $c = shift; my $c = shift; my $title = "Gearmand"; #$c->ledge_get('sysinfo') || []; if ( my $port = $c->args->[0] ) { [‘job’,‘worker’]; $title .= " ($port)"; }; } return $title; }; # KVS $c->ledge_set( 'key', @data, [expires] ); $c->ledge_add( 'key', @data, [expires] ); $c->ledge_get( 'key’ ); $c->ledge_delete( 'key’ );
83.
--- component_config: resources: -
traffic:eth1 - basic - gearmand:7003
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Tips
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$ vim cloudforecast.yaml --- config:
gearman_enable: 1 gearman_server: host: localhost port: 7003 data_dir: data host_config_dir: host_config ..
108.
# $ ./cf_fetcher_worker -c
cloudforecast.yaml --max-workers 20 --max-execution-time 60 # RRD $ ./cf_updater_worker -c cloudforecast.yaml --max-workers 4
109.
#!/bin/sh exec 2>&1 export CF_DEBUG=1 exec
/path/to/cloudforecast/cloudforecast_radar -r -c /path/to/cloudforecast/cloudforecast.yaml -l /path/to/cloudforecast/server_list.yaml
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