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https://issues.apache.org/jira/browse/SOLR-7339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14391351#comment-14391351
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Shalin Shekhar Mangar commented on SOLR-7339:
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Yep, we're going to Jetty 9 soon. See SOLR-4839 where I already upgraded to
Jetty 9.2 in trunk so that we could go to SPDY but then SPDY was deprecated and
HTTP/2 will come out in 9.3. So my next plan is to target 9.3 as soon as it is
out and then use Jetty's HTTP client throughout. In the meanwhile, I'll port
Jetty 9.2 to 5.x branches after 5.1 is released.
If you don't mind, I will close this issue and we can continue the discussion
on SOLR-4839.
> 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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