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https://issues.apache.org/jira/browse/SOLR-127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Peuss updated SOLR-127:
------------------------------

    Attachment: CacheUnitTest.patch

The unit tests work now as expected. The problem described earlier occurred 
because of different behavior of the normal unit tests and the ones run with 
Jetty.

Please be aware of the changes in
* SolrDispatchFilter.java: the _init_ method has changed
* JettySolrRunner.java: additional constructor

So we can now go ahead and get this into the codebase... :-)

> Make Solr more friendly to external HTTP caches
> -----------------------------------------------
>
>                 Key: SOLR-127
>                 URL: https://issues.apache.org/jira/browse/SOLR-127
>             Project: Solr
>          Issue Type: Wish
>            Reporter: Hoss Man
>            Assignee: Hoss Man
>             Fix For: 1.3
>
>         Attachments: CacheUnitTest.patch, CacheUnitTest.patch, 
> HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, 
> HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, 
> HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, 
> HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, 
> HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch, 
> HTTPCaching.patch, HTTPCaching.patch, HTTPCaching.patch
>
>
> an offhand comment I saw recently reminded me of something that really bugged 
> me about the serach solution i used *before* Solr -- it didn't play nicely 
> with HTTP caches that might be sitting in front of it.
> at the moment, Solr doesn't put in particularly usefull info in the HTTP 
> Response headers to aid in caching (ie: Last-Modified), responds to all HEAD 
> requests with a 400, and doesn't do anything special with If-Modified-Since.
> t the very least, we can set a Last-Modified based on when the current 
> IndexReder was open (if not the Date on the IndexReader) and use the same 
> info to determing how to respond to If-Modified-Since requests.
> (for the record, i think the reason this hasn't occured to me in the 2+ years 
> i've been using Solr, is because with the internal caching, i've yet to need 
> to put a proxy cache in front of Solr)

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