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From Erlend Garåsen (JIRA) <>
Subject [jira] [Commented] (CONNECTORS-1564) Support preemptive authentication to Solr connector
Date Wed, 30 Jan 2019 14:13:00 GMT


Erlend Garåsen commented on CONNECTORS-1564:

I tried to set the protocol version explicitly everywhere we were creating an instance of
the HttpPost class:
But with no luck. I also tried to change the order of the builder method invocations. Maybe
the source of the problem is located in the SolrJ library. I can try to refactor my own Solr
connector, enable ExpectContinue and inspect the traffic. Since this connector does not override
HttpSolrClient, I will be able to check whether SolrJ is the problem.

[~michael-o], unfortunately I haven't got time to try your sample code yet.

> Support preemptive authentication to Solr connector
> ---------------------------------------------------
>                 Key: CONNECTORS-1564
>                 URL:
>             Project: ManifoldCF
>          Issue Type: Improvement
>          Components: Lucene/SOLR connector
>            Reporter: Erlend Garåsen
>            Assignee: Karl Wright
>            Priority: Major
>         Attachments: CONNECTORS-1564.patch
> We should post preemptively in case the Solr server requires basic authentication. This
will make the communication between ManifoldCF and Solr much more effective instead of the
>  * Send a HTTP POST request to Solr
>  * Solr sends a 401 response
>  * Send the same request, but with a "{{Authorization: Basic}}" header
> With preemptive authentication, we can send the header in the first request.

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