[[HP ProLiant ML110 G7]]

[[Munin on NEC-Express5800/GT110b FreeBSD 8.1]]
#contents

えっと、上記を参考にして、Muninは設置出来ているものとします。( ´▽`)ノ
*WWWサーバをMuninで監視するよ! [#n4bb30ac]
といえば、当然用意されているプラグインの、Apache関連を使いたい。よね。で、普通に、

 blackcube# munin-node-configure -suggest
すると、
 Plugin                     | Used | Suggestions
 ------                     | ---- | -----------
 amavis                     | no   | no
 apache_accesses            | no   | no [apache server-status not found. check if mod_status is enabled]
 apache_processes           | no   | no [apache server-status not found. check if mod_status is enabled]
 apache_volume              | no   | no [apache server-status not found. check if mod_status is enabled]

となります。(ーー;) 

機体によっては
 Plugin                     | Used | Suggestions
 ------                     | ---- | -----------
 amavis                     | no   | no
 apache_accesses            | no   | no [LWP::UserAgent not found]
 apache_processes           | no   | no
 apache_volume              | no   | no [LWP::UserAgent not found]
と成ったりもします。

**LWP::UserAgent not found 2013/10/08 [#a981e2fb]

 2013/10/08-15:05:01 [91772] Error output from apache_processes:
 2013/10/08-15:05:01 [91772] 	LWP::UserAgent not found at /usr/local/etc/munin/plugins/apache_processes line 93.

 root@blackcube:/usr/local/etc/php # cpan
 Terminal does not support AddHistory.
 
 cpan shell -- CPAN exploration and modules installation (v1.960001)
 Enter 'h' for help.
 
 cpan[1]> install LWP::UserAgent

しても、NG

 # portupgrade -f p5-libwww-6.05

でも、NG
http://www.unixeds.com/some-bsd/freebsd-and-munin-howto

 # munin-run apache_accesses
 LWP::UserAgent not found at /usr/local/etc/munin/plugins/apache_accesses line 86.

 # portinstall www/p5-LWP-UserAgent-Determined
http://selfool.jugem.jp/?eid=873

これでも、NG なんで?

----
**munin-node-configure -suggest [#e78260c9]

というコマンドのソースを見てませんが、プラグイン実行時のエラーを上げている様です。で、

 [apache server-status not found. check if mod_status is enabled]

に対処するわけですが・・・。まず、server-statusを表示させます。

/usr/local/etc/apache22/httpd.conf
 # Real-time info on requests and configuration
 Include etc/apache22/extra/httpd-info.conf
で、ついで、該当のetc/apache22/extra/httpd-info.confを、

 # Get information about the requests being processed by the server
 # and the configuration of the server.
 #
 # Required modules: mod_status (for the server-status handler),
 #                   mod_info (for the server-info handler)
 
 #
 # Allow server status reports generated by mod_status,
 # with the URL of http://servername/server-status
 # Change the ".example.com" to match your domain to enable. 
 
 ScriptAlias /server-status/ ":80/server-status/"
 
 <Location /server-status>
 
    SetHandler server-status
    Order deny,allow
    Deny from all
    Allow from 127.0.0.1
    Allow from .smb.net
 </Location>
 
 #
 # ExtendedStatus controls whether Apache will generate "full" status
 # information (ExtendedStatus On) or just basic information (ExtendedStatus
 # Off) when the "server-status" handler is called. The default is Off.
 #
 ExtendedStatus On
 
 #
 # Allow remote server configuration reports, with the URL of
 #  http://servername/server-info (requires that mod_info.c be loaded).
 # Change the ".example.com" to match your domain to enable.
 #
 <Location /server-info>
    SetHandler server-info
    Order deny,allow
    Deny from all
    Allow from 127.0.0.1
    Allow from .smb.net
 </Location>


とします。

 ScriptAlias /server-status/ ":80/server-status/"
とするのは、Muninのプラグインが、url:80 でアクセスする事を想定しているからです。
/usr/local/etc/munin/plugin-conf.d/plugin.conf
 [apache_*]
 env.url   http://127.0.0.1:%d/server-status?auto
 #env.url   http://127.0.0.1/server-status?auto
 env.ports 80
これで、

 Plugin                     | Used | Suggestions
 ------                     | ---- | -----------
 amavis                     | no   | no
 apache_accesses            | yes  | yes
 apache_processes           | no   | no
 apache_volume              | yes  | yes
となったと思います。あとは、プラグインのリンクを
 blackcube# munin-node-configure -shell | sh
で自動生成する、ヨロシ(o゜▽゜)o

http://sunq.jp/style/archives/2012/02/19-165504
 apache_processes           | no   | no
となっていたwww.smb.netですが、他のG7機体ではyesとなってます。ためしに、プラグイン入れて見ると、

 blackcube# cat /var/log/munin/munin-node.log
 
 2012/08/18-17:30:02 [62546] Error output from apache_processes:
 2012/08/18-17:30:02 [62546]     Use of qw(...) as parentheses is deprecated at /usr/local/etc/munin/plugins/apache_processes line 164.

とあり、
 Use of qw(…) as parentheses is deprecated at /etc/munin/plugins/apache_processes line 164
   foreach my $type(qw “busy idle” {

   foreach my $type (qw (“busy idle”)) {
としてOK


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