DNS Config Tool with Mulitple Address Maps
Dmitry Kurochkin
dmitry.kurochkin at measurement-factory.com
Tue Mar 15 21:21:04 UTC 2011
Hi Michael.
On Tue, 15 Mar 2011 16:40:32 +1030, Michael Hendrie <pmix at hendrie.id.au> wrote:
> Hello List,
>
> I am attempting to use a single configuration file to run a Polygraph workload that contains both normal HTTP and SSL robots/servers. This appears to be working well, when I start the server process I see it creates the HTTP Server agents listening on port 80 and the SSL server agents listening on port 443. I have started the client process and this loads the configuration file without complaining about errors.
>
> The issue is generating the DNS configuration file for BIND. When I run the polygraph-dns-cfg tool it errors out complaining about multiple address maps being used. My understanding from http://www.web-polygraph.org/docs/reference/pgl/types.html#type:docs/reference/pgl/types/AddrMap is that multiple address maps should be able to be used.
>
> The errors is:
>
> bash-3.2# /usr/local/bin/polygraph-dns-cfg --config ../mymixed.pg
> ../mymixed.pg: must use() exactly one address map, but 2 maps were used
>
Currently, this is a limitation of dns-cfg tool. Polygraph client
supports multiple address maps but the DNS configuration tool does not.
As a workaround, you may use dns-cfg multiple times use()ing different
address maps in PGL workload and merge output by hand. Note: Only BIND
configuration (i.e. dns-cfg console output) needs merging, individual
zone files (e.g. tst and tst.rev) do not need any changes.
Added to FAQ on Launchpad [1].
Regards,
Dmitry
[1] https://answers.launchpad.net/polygraph/+faq/1512
>
> I have tested with both web-polygraph 4.0.10 and 4.3.1 but both produce the same error.
>
> The relevant part of the workload file is:
>
> AddrMap SslMap = {
> zone = "sslbench.tst";
> addresses = srvSsl.addresses;
> names = ipsToNames(addresses, zone);
> };
>
> AddrMap HttpMap = {
> zone = "httpbench.tst";
> addresses = srvHttp.addresses;
> names = ipsToNames(addresses, zone);
> };
>
> ...
> ...<config removed>
> ...
> use(SslMap, HttpMap);
>
> Does anyone know how to overcome this issue and generate a useful bind file with the tool when multiple address maps are used.
>
> Thanks
>
> Mick
>
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