Disable solr if not enough memory

src/views/emails.js

@@ -216,19 +216,22 @@ angular.module('Application').controller('EmailsController', ['$scope', '$locati
     $scope.solrConfig = {
         busy: false,
         error: {},
-        currentConfig: {},
+        currentConfig: null, // null means not loaded yet
         enabled: false,
         running: false,
+        enoughMemory: false,
 
         refresh: function () {
             Client.getService('mail', function (error, result) {
                 if (error) return console.log('Error getting status of mail conatiner', error);
 
+                $scope.solrConfig.enoughMemory = result.config.memorySwap > (1024*1024*1024*2);
+                $scope.solrConfig.running = result.healthcheck && result.healthcheck.solr.status;
+
                 Client.getSolrConfig(function (error, config) {
                     if (error) return console.error('Failed to get solr config', error);
 
                     $scope.solrConfig.currentConfig = config;
-                    $scope.solrConfig.running = result.healthcheck && result.healthcheck.solr.status;
                 });
             });
         },