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From "Gregg Donovan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-7339) Upgrade Jetty to 9.3
Date Wed, 01 Apr 2015 18:50:57 GMT
Gregg Donovan created SOLR-7339:
-----------------------------------

             Summary: Upgrade Jetty to 9.3
                 Key: SOLR-7339
                 URL: https://issues.apache.org/jira/browse/SOLR-7339
             Project: Solr
          Issue Type: Improvement
            Reporter: Gregg Donovan


Jetty 9.3 offers support for HTTP/2. Interest in HTTP/2 or its predecessor SPDY was shown
in [SOLR-6699|https://issues.apache.org/jira/browse/SOLR-6699] and [on the mailing list|http://markmail.org/message/jyhcmwexn65gbdsx].

Among the HTTP/2 benefits over HTTP/1.1 relevant to Solr are:

* multiplexing requests over a single TCP connection ("streams")
* canceling a single request without closing the TCP connection
* removing [head-of-line blocking|https://http2.github.io/faq/#why-is-http2-multiplexed]
* header compression

Caveats:
* Jetty 9.3 is at M2, not released.
* Full Solr support for HTTP/2 would require more work than just upgrading Jetty. The server
configuration would need to change and a new HTTP client ([Jetty's own client|https://github.com/eclipse/jetty.project/tree/master/jetty-http2],
[Square's OkHttp|http://square.github.io/okhttp/], [etc.|https://github.com/http2/http2-spec/wiki/Implementations])
would need to be selected and wired up. Perhaps this is worthy of a branch?



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