There are log messages about solr instance not being available but they don't mention which instance they are referring to.
In the case of sites with multiple instances this is useful time saving information.
In my case the log in question was "No Solr instance available during indexing." in the apachesolr_index_send_to_solr() function, but a quick grep shows a few others:
"No Solr instance available during indexing." in apachesolr_index_batch_index_entities()
"No Solr instance available when checking requirements." in apachesolr_requirements()
"No Solr instance available when trying to clear the cache." in DrupalApacheSolrService::clearCache()
Comments
Comment #1
gourav.yadav CreditAttribution: gourav.yadav commentedYour site was unable to contact the Apache Solr server. message show ....