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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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Hoss Man updated SOLR-127:
--------------------------

    Attachment: HTTPCaching.patch

checkpoint: unification of the most recent HTTPCaching.patch and Thomas's last 
CacheUnitTest.patch

(note: Thomas, if we have any more iterations of changes to the patches related 
to testing, it would probably be better to just keep generating  single unified 
patch containing everything ... having multiple patches attached to an issue is 
fine as long s they don't overlap, but it gets really difficult to apply 
multiple patches when they both add (or modify) the same files)

next step is some MultiCore aware stuff i mentioned before .. working on that 
now.

> 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, 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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