Re: ArchiveDataServer errors

[Kay-Uwe Kasemir <kasemirk@ornl.gov>]

On Feb 11, 2006, at 02:43 , liushu wrote:
>     According to the manual.pdf.I create directory
> /var/www/html/archive/cgi,and copied
> ChannalArchiver/XMLRPCServer/O.linux-x86/ArchiveDataServer
> /var/www/cgi-bin/xmlrpc/ArchiveDataServer.cgi,and ChannalArchiver's  
> example
> serverconfig.xml,serverconfig.dtd to /var/www/cgi-bin/xmlrpc/,and add
> following to httpd.conf:
>    <Directory "/var/www/html/archive">
>     Order Allow,Deny
>     Allow from from All
> </Directory>
> <Directory "/var/www/html/archive/cgi">
...

So you configure
> /archive/cgi
to host the ArchiveDataServer CGI tool,
but then you try to execute it in
/cgi-bin/xmlrpc ??

>    Then I restart httpd by   /etc/rc.d/init.d/httpd restart.I run
> ArchiveDataClient.pl -u
> http://192.168.20.155/cgi-bin/xmlrpc/ArchiveDataServer.cgi -i
>   I got these output:
> not well-formed (invalid token) at line 1, column 0, byte 0 at
> /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/XML/ 
> Parser.pm line
> 185
Well, it means that the client got to the web server,
and it received some response, but nothing that looked
like a valid XML-RPC response.
In this case it often helps to look at the raw data server response  
yourself:

  telnet my_web_server_host 80
  GET /cgi-bin/xmlrpc/ArchiveDataServer.cgi HTTP/1.0<RETURN>
  <RETURN>

You should see an error message about ``XML-RPC Fault: Expected HTTP  
method POST'',
indicating that the data server was launched correctly and
was looking for a proper XML-RPC request.
If you see only pages of binary-looking garbage, your web server
doesn't recognize ArchiveDataServer.cgi as a CGI program,
and instead of running it, you get a copy of it.

It might help to review which web directories you intend
to configure as CGI directories.
Refer to the manual for your web server how to do that.
The archiver manual can only give suggestions.

>    And I have some questions:As I know that ArchiveEngine is web  
> server too,so
> I want to know if I start ArchiveEngine I don't need to start  
> httpd,right?And
> if I start httpd I don't need to start ArchiveEngine either,right?
Correct, they're separate:
The engine takes samples and serves status info via its httpd,
your Apache or other httpd serves web pages and maybe data via the  
ArchiveDataServer.cgi

> Or if I use
> ArchiveDataServer,which one I need,ArchiveEngine or httpd running?
httpd like Apache which executes ArchiveDataServer as a CGI tool.

-Kay