The server is connected, the index is enable and I can index the content successfully Content (221/221 indexed). However, there are not elements when I search and also the following message is shown in the index:
Server index status Error while checking server index status: An error occurred while trying to search with Solr: Error 404 Not Found HTTP ERROR 404 Not Found URI:/solr/lean/elevate STATUS:404 MESSAGE:Not Found SERVLET:default
Closed: cannot reproduce
4.2
User interface
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
For us, this was caused by the following missing from solrconfig_extra.xml:
<!--
Elevator
7.0.0
-->
<requestHandler name="/elevate" class="solr.SearchHandler" startup="lazy">
<lst name="defaults">
<str name="echoParams">explicit</str>
<str name="df">id</str>
</lst>
<arr name="last-components">
<str>elevator</str>
</arr>
</requestHandler>
Elevator request handler was disabled. After enabling and updating the solrconfig_extra.xml works for me.