@@ -69,7 +69,12 @@ function install_zookeeper {

 # start_zookeeper() - Start running processes, including screen

 function start_zookeeper {

-    start_service zookeeper

+    # Starting twice Zookeeper on Ubuntu exits with error code 1. See LP#1513741

+    # Match both systemd and sysvinit output

+    local running="(active \(running\)|start/running)"

+    if ! is_ubuntu || ! sudo /usr/sbin/service zookeeper status | egrep -q "$running"; then

+        start_service zookeeper

+    fi

 }

 # stop_zookeeper() - Stop running processes (non-screen)