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  • Committer: Kay Roepke
  • Author(s): Jan Kneschke
  • Date: 2008-01-23 22:00:28 UTC
  • Revision ID: kay@mysql.com-20080123220028-hq2xqb69apa75fnx
first round on mysql-shell based on the proxy code

this is mostly a verification if the proxy-code is flexible enough to handle 
all three scenarios of: client, server and forwarding (proxy)

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doc/architecture-overview.dot
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/*
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  the building blocks of the proxy
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  You may use "dot" from graphviz to generate human consumable output
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  like PNG or PDF:
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    $ dot -T pdf -o architecture.pdf architecture.dot
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    $ dot -T png -o architecture.png architecture.dot
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  or you generate a image-map
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    $ dot -T cmapx -o architecture.map -Tpng -o architecture.png architecture.dot && \
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      echo '<img src="architecture.png" border="0" usemap="#g"/>' > architecture.html && \
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      cat architecture.map >> architecture.html
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*/
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digraph G {
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        node [
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                shape = "plaintext"
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                fontname = "Courier"
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                fontsize = 10
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        ]
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        rank = "same";
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        rankdir = "LR";
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        subgraph clients {
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                Clients1 [
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                        label = <
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                                <table border="1" cellborder="1">
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                                 <tr>
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                                  <td bgcolor="grey" port="head">
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                                   <font color="white">Client</font>
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                                  </td>
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                                 </tr>
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                                 <tr border="0"><td border="0"><table border="0">
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                                 <tr>
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                                  <td border="1" port="app">app</td>
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                                 </tr>
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                                </table>
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                                </td></tr></table>
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                                >
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                ];
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                Clients2 [
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                        label = <
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                                <table border="1" cellborder="1">
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                                 <tr>
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                                  <td bgcolor="grey" port="head">
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                                   <font color="white">Client</font>
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                                  </td>
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                                 </tr>
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                                 <tr border="0"><td border="0"><table border="0">
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                                 <tr>
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                                  <td border="1" port="app">app</td>
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                                 </tr>
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                                </table>
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                                </td></tr></table>
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                                >
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                ];
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        }
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        subgraph backends {
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                Backend1 [
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                        label = <
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                                <table border="1" cellborder="1">
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                                 <tr>
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                                  <td bgcolor="grey" port="head">
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                                   <font color="white">MySQL Server</font>
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                                  </td>
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                                 </tr>
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                                 <tr border="0"><td border="0"><table border="0">
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                                 <tr>
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                                  <td border="1" port="port">10.0.0.1:3306</td>
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                                 </tr>
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                                </table>
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                                </td></tr></table>
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                                >
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                ];
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                Backend2 [
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                        label = <
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                                <table border="1" cellborder="1">
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                                 <tr>
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                                  <td bgcolor="grey" port="head">
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                                   <font color="white">MySQL Server</font>
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                                  </td>
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                                 </tr>
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                                 <tr border="0"><td border="0"><table border="0">
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                                 <tr>
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                                  <td border="1" port="port">10.0.0.2:3306</td>
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                                 </tr>
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                                </table>
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                                </td></tr></table>
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                                >
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                ];
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        }
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        Blocks [
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                label = <
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                        <table border="1" cellborder="1">
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                         <tr>
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                          <td bgcolor="black" port="head">
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                           <font color="white">MySQL Proxy</font>
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                          </td>
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                         </tr>
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                         <tr border="0"><td border="0"><table border="0">
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                         <tr>
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                          <td border="1" port="script">script</td>
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                         </tr>
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                         <tr>
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                          <td border="1" port="plugin">plugin</td>
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                         </tr>
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                         <tr>
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                          <td border="1" port="proxy">network core</td>
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                         </tr>
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                        </table>
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                        </td></tr></table>
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                        >
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        ]
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        Clients1:app:e -> Blocks:w;
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        Clients2:app:e -> Blocks:w;
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        Blocks:e -> Backend1:port:w;
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        Blocks:e -> Backend2:port:w;
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}