Per, Confused, I thought ban and purge are the same thing now in varnish 3?
Varnish 3 uses the term ban and banning for what was known as purge and purging in Varnish 2. They are the same. - Varnish 3 has a new function called purge; that did not exist in VCL in Varnish 2. - purge; is a much improved way of doing what was in Varnish 2 done using set obj.ttl = 0s;. So when you said limiting ban's to 10-30 per second, you were referring to a regex based way of removing an item from cache? And a purge is a specific url? On Wed, Oct 10, 2012 at 8:59 AM, Per Buer <[email protected]>wrote: > Hi, > > On Wed, Oct 3, 2012 at 9:31 PM, S Ahmed <[email protected]> wrote: > >> I was reading: >> https://www.varnish-software.com/static/book/Cache_invalidation.html >> >> My main question is, what sort of # of ban requests can one realistically >> send to varnish to invalid caches? (individual items, not ranges etc.) >> > > I would limit bans to maybe 10-30 per second, no more. Make sure they are > lurker-friendly. > > Say a site like tumblr is using varnish, which has thousands and thousands >> of blogs, and so many blog entries are being updated via comments etc. How >> realistic would sending 1K ban's be to varnish? >> > > Sending 1k purges to Varnish would be no problem at all. Bans - I'm not > sure that is a good idea. > > >> Maybe I have misunderstood this, but I'm guessing their are ruby/java >> client libraries that when content gets updated in a web application, I >> could then send a request using the ruby/java client library to ban a >> specific item from cache right? >> >> If there are client libraries, where can they be found? I'm looking for >> both ruby and java. >> > > It might make sense to implement it yourself. It is dead simple and you > don't need the complexities of a generic library. > > -- > Per Buer > Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / Skype: per.buer > *Varnish makes websites fly!* > Whitepapers <http://www.varnish-software.com/whitepapers> | > Video<http://www.youtube.com/watch?v=x7t2Sp174eI> | > Twitter <https://twitter.com/varnishsoftware> > > >
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