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https://issues.apache.org/jira/browse/TIKA-4679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18063021#comment-18063021
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ASF GitHub Bot commented on TIKA-4679:
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tballison commented on PR #2672:
URL: https://github.com/apache/tika/pull/2672#issuecomment-3999953963
>. For h2 over TLS an additional jetty-alpn-java-server dependency may be
needed depending on the Jetty version and JVM. This can be addressed in a
follow-up.
I think we're good with Java 17.
> Tika Server HTTP2 Support
> -------------------------
>
> Key: TIKA-4679
> URL: https://issues.apache.org/jira/browse/TIKA-4679
> Project: Tika
> Issue Type: Improvement
> Components: server
> Reporter: Lawrence Moorehead
> Assignee: Nicholas DiPiazza
> Priority: Minor
>
> It would be helpful to have HTTP2 support (particularly clear text 'h2c') for
> Tika Server.
> The main motivation is that Google Cloud Run limits request sizes to 32 mb on
> HTTP1.1, but has no hard cap with HTTP2. (Containers inside Google Cloud Run
> run without HTTPS.)
> The CXF documentation is here for reference:
> [https://cwiki.apache.org/confluence/display/CXF20DOC/Jetty+Configuration#JettyConfiguration-jetty_http2HTTP/2support]
> The main change needed is adding the dependencies that the underlying Jetty
> server needs for http2, {{http2-server}} and {{{}jetty-alpn-java-server{}}},
> to {{{}tika-server-core{}}}.
> The documentation also says there's an
> {{HttpServerEngineSupport#ENABLE_HTTP2}} property that could be used to
> control if it's enabled, but it seems to be enabled by default already and
> I'm not sure it's necessary for users to be able to explicitly disable http2
> support.
> I made a basic smoke test for http2 support here for reference (although this
> doesn't include the alpn library that seems to be necessary for https
> support):
> [https://github.com/elemdisc/tika/pull/1/changes/5b467d1636a123d740ccc2e8d37de8c042959bef]
> You can also check http2 connections with curl:
> {code:java}
> curl --http2-prior-knowledge -v http://localhost:9998/
> {code}
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