Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/6327#discussion_r202646757
--- Diff: flink-end-to-end-tests/test-scripts/common.sh ---
@@ -183,9 +221,15 @@ function start_cluster {
"$FLINK_DIR"/bin/start-cluster.sh
# wait at most 10 seconds until the dispatcher is up
+ local QUERY_URL
+ if [ "x$USE_SSL" = "xON" ]; then
--- End diff --
why the `x`?---
