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https://issues.apache.org/jira/browse/SOLR-7339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15087814#comment-15087814
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Mark Miller commented on SOLR-7339:
-----------------------------------
bq. The request that fails sends data using chunked encoding, but sends one
chunk of length 0x59, but does not send the terminal chunk. The logs show Jetty
reporting that the processing is complete but with unconsumed input, and
therefore closes the connection.
[~joakime], it appears that the terminal chunk is still coming. Jetty is no
longer waiting for it like it previously did. If we speed up how fast we send
the terminal chunk, we can get the test to pass. If we slow it down too much,
say even by turning on all debug logging, even speeding up how fast we send the
terminal chunk is not enough. We basically now have 10-12ms to get that
terminal chunk out, where previously Jetty would wait up to other connection
timeouts (30 seconds) to get that terminal chunk.
> Upgrade Jetty from 9.2 to 9.3
> -----------------------------
>
> Key: SOLR-7339
> URL: https://issues.apache.org/jira/browse/SOLR-7339
> Project: Solr
> Issue Type: Improvement
> Reporter: Gregg Donovan
> Assignee: Shalin Shekhar Mangar
> Fix For: Trunk
>
> Attachments: SOLR-7339-revert.patch, SOLR-7339.patch,
> SOLR-7339.patch,
> SolrExampleStreamingBinaryTest.testUpdateField-jetty92.pcapng,
> SolrExampleStreamingBinaryTest.testUpdateField-jetty93.pcapng
>
>
> 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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