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https://issues.apache.org/jira/browse/SOLR-11869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16330877#comment-16330877
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Erick Erickson commented on SOLR-11869:
---------------------------------------
Just skimmed your first post. At a bit higher level, if you're running
Tika on the Solr server, that usually doesn't scale well for two
reasons
1> it puts a lot of CPU intensive work on the Solr box
2> Tika sometimes hits OOMs, loops and the like. It has to deal with a
_ton_ of wonky implementations of ill-defined specs.
I'm not quite sure if this is germane to your question, but if so and
you can move your Tika processing off to an external client or service
that might be a better way to go...
> Remote streaming UpdateRequestProcessor
> ---------------------------------------
>
> Key: SOLR-11869
> URL: https://issues.apache.org/jira/browse/SOLR-11869
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: UpdateRequestProcessors
> Reporter: Dirk Rudolph
> Priority: Minor
>
> When indexing documents from content management systems (or digital asset
> management systems) they usually have fields for metadata given by an editor
> and they in case of pdfs, docx or any other text formats may also contain the
> binary content as well, which might be parsed to plain text using tika. This
> is whats currently supported by the ExtractingRequestHandler.
> We are now facing situations where we are indexing batches of documents using
> the UpdateRequestHandler and want to send the binary content of the documents
> mentioned above as part of the single request to the UpdateRequestHandler. As
> those documents might be of unknown size and its difficult to send streams
> along the wire with javax.json APIs, I though about sending the url to the
> document itself, let solr fetch the document and let it be parsed by tika -
> using a RemoteStreamingUpdateRequestProcessor.
> Example:
> {code:json}
> {
> "add": { "id": "doc1", "meta": "foo", "meta": "bar", "text": "Short text" }
> "add": { "id": "doc2", "meta": "will become long", "text_ref": "http://..."; }
> }
> {code}
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