fix: add error handling in case of unvailable cache server

Signed-off-by: Muhammad Aaqil <aaqilcs102@gmail.com>

Author: aaqilniz

lib/datasource.js

@@ -499,7 +499,15 @@ DataSource.prototype.setup = function(dsName, settings) {
           debug('Connection fails: %s\nIt will be retried for the next request.', err);
         } else {
           g.error('Connection fails: %s\nIt will be retried for the next request.', err);
-          this.emit('error', err);
+          if (settings.catchFailure) {
+            try {
+              this.emit('error', err);
+            } catch (error) {
+              console.log(error);
+            }
+          } else {
+            this.emit('error', err);
+          }
         }
       } else {
         // Either lazyConnect or connector initialize() defers the connection