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https://issues.apache.org/jira/browse/SOLR-12798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16630625#comment-16630625
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Mikhail Khludnev commented on SOLR-12798:
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I'm trying to understand what's problem. Giving that the challenge is to send a
huge file in body and long param. I took the test:
[https://github.com/apache/lucene-solr/blob/c587410f99375005c680ece5e24a4dfd40d8d3eb/solr/solrj/src/test/org/apache/solr/client/solrj/SolrExampleTests.java#L675]
added long param into:
{{up.setParam(CommonParams.HEADER_ECHO_PARAMS,
CommonParams.EchoParamStyle.ALL.toString());}}
{{ { // added long param}}
{{ StringBuilder sb = new StringBuilder();}}
{{ for(int i=0; i<10000000; i++) {}}
{{ sb.append((char)('a'+((char)(i%26))));}}
{{ }}}
{{ String longparam = sb.toString();}}
{{ //System.out.println(longparam.length());}}
{{ up.setParam("b", longparam);}}
{{ }}}
{{ up.setAction(AbstractUpdateRequest.ACTION.COMMIT, true, true);}}
Then I run SolrExampleJettyTest and it passed. Is it possible if Manifold
request by the same way?
> Structural changes in SolrJ since version 7.0.0 have effectively disabled
> multipart post
> ----------------------------------------------------------------------------------------
>
> Key: SOLR-12798
> URL: https://issues.apache.org/jira/browse/SOLR-12798
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrJ
> Affects Versions: 7.4
> Reporter: Karl Wright
> Assignee: Karl Wright
> Priority: Major
> Attachments: HOT Balloon Trip_Ultra HD.jpg,
> SOLR-12798-approach.patch, solr-update-request.txt
>
>
> Project ManifoldCF uses SolrJ to post documents to Solr. When upgrading from
> SolrJ 7.0.x to SolrJ 7.4, we encountered significant structural changes to
> SolrJ's HttpSolrClient class that seemingly disable any use of multipart
> post. This is critical because ManifoldCF's documents often contain metadata
> in excess of 4K that therefore cannot be stuffed into a URL.
> The changes in question seem to have been performed by Paul Noble on
> 10/31/2017, with the introduction of the RequestWriter mechanism. Basically,
> if a request has a RequestWriter, it is used exclusively to write the
> request, and that overrides the stream mechanism completely. I haven't
> chased it back to a specific ticket.
> ManifoldCF's usage of SolrJ involves the creation of
> ContentStreamUpdateRequests for all posts meant for Solr Cell, and the
> creation of UpdateRequests for posts not meant for Solr Cell (as well as for
> delete and commit requests). For our release cycle that is taking place
> right now, we're shipping a modified version of HttpSolrClient that ignores
> the RequestWriter when dealing with ContentStreamUpdateRequests. We
> apparently cannot use multipart for all requests because on the Solr side we
> get "pfountz Should not get here!" errors on the Solr side when we do, which
> generate HTTP error code 500 responses. That should not happen either, in my
> opinion.
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