introduce setting "testConnection" that allows to disable initial pin…

…g requests

Classes/Service/SolrServiceProvider.php

@@ -96,7 +96,9 @@ public function connect()
         $client = new Client($adapter, $eventDispatcher, $connectionSettings);
 
         $this->setConnection($client);
-        $this->testConnection();
+        if (filter_var($this->settings["testConnection"]??true, FILTER_VALIDATE_BOOLEAN)) {
+            $this->testConnection();
+        }
 
         $this->timeTracker= GeneralUtility::makeInstance(TimeTracker::class);
 		$this->timing['INIT_START'] = $this->timeTracker->getDifferenceToStarttime();

README.md

@@ -152,6 +152,10 @@ provider and an options array.
 The `plugin.tx_find.settings.activeConnection` determines the currently
 used connection. The default value is `default`.
 
+Per default, the connection is tested upon initialization (ping request).
+Using the boolean setting `plugin.tx_find.settings.testConnection` this behavior 
+can be disabled.
+
 The `options` settings array in a connection definition is used to
 configure access to the Solr index. It contains: