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<p class="MsoNormal"><span lang="EN-US">Hi!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m going to setup a mass-redirect server and I’m wondering which, if any, of my plans are going to work. The redirects are similar to those “tinyurl”-like websites where a short unique string leads to a full URL.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This is what I know I’m faced with:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Over 1,500,000 different redirects.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">300 visitors per second.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">70 redirects added per hour.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Plan A:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">One if-section for each URL to redirect.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Will 1,500,000 if-sections-lookup slow down Varnish?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Will compiling via varnishadm be slow? If so, will it be faster to split the configurations in several .vcl and only compile the changed ones if possible?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Plan B:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Let varnish cache 301 redirects forever. Let aria2 and visitors populate the cache when varnish is started.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Populating will probably take a long time. I’m hoping the backend of squid+squirm will handle the 300 lookups/s from visitors otherwise visitors will use another backend which is already populated.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Anyway, will the lookup in cache be faster than plan A where lookup is done in if-sections?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Plan C:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Use vmod-sql to issue queries to a database. I think this will be way too slow because I don’t think I can cache those. Sadly I didn’t find much documentation on this vmod.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I saw there was a similar question asked before. From that one I gathered that the if-sections-lookup will be faster than non-cached redirects from a squid+squirm backend, hence why I’d cache those responses in plan B.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:SV">Freja Borginger<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:SV">IT<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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