Gregg Donovan created SOLR-7339:
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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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