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https://issues.apache.org/jira/browse/SOLR-15159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17285461#comment-17285461
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David Smiley commented on SOLR-15159:
-------------------------------------
I think a simple fix is to modify
{{org.apache.solr.client.solrj.impl.Http2SolrClient#processErrorsAndResponse(org.eclipse.jetty.client.api.Response,
org.apache.solr.client.solrj.ResponseParser, java.io.InputStream,
java.lang.String, java.lang.String, boolean)}} with code to compute the baseUrl
by examining the Jetty {{Response}} passed to this method. This should get us
the scheme & host & port. But the path is the full path (e.g.
"solr/admin/collections") , not the base path (e.g. "solr"). I think that
detail is minor; we don't need the path. HttpSolrClient.executeMethod could
have similar logic.
> Missing host in error message: "Error from server at null"
> ----------------------------------------------------------
>
> Key: SOLR-15159
> URL: https://issues.apache.org/jira/browse/SOLR-15159
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: David Smiley
> Priority: Major
>
> RemoteSolrException's first argument is a "baseUrl" and/or the host of Solr.
> I've seen logged exceptions where it is null on occassion, which makes
> debugging a bit harder.
> After looking at Http2SolrClient (and HttpSolrClient similarly), I can see
> there is a "serverBaseUrl" or "baseUrl" field that is passed to this
> exception. This field can actually be null, despite it seeming like
> something that is mandatory. The reason is that a SolrRequest can itself
> contain the path that is used (see SolrRequest.getBasePath). There are some
> internal SolrClient instances that are configured with no default baseUrl and
> thus the request must always supply this... such as HttpShardHandlerFactory
> "defaultClient".
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