diff --git a/Jenkinsfile.backend-docker b/Jenkinsfile.backend-docker
index c06f3da..28a474e 100644
--- a/Jenkinsfile.backend-docker
+++ b/Jenkinsfile.backend-docker
@@ -129,6 +129,7 @@ pipeline {
                     mysql_ready=0
                     for attempt in $(seq 1 60); do
                       if $DOCKER_CMD exec "$SMOKE_MYSQL" mysqladmin ping \
+                        --host=127.0.0.1 --protocol=tcp \
                         --user=jizhi --password=jizhi-smoke-password --silent; then
                         mysql_ready=1
                         break
@@ -139,6 +140,7 @@ pipeline {
                       $DOCKER_CMD logs "$SMOKE_MYSQL" >&2
                       exit 1
                     fi
+                    sleep 2
 
                     host_port=$((18080 + BUILD_NUMBER % 1000))
                     $DOCKER_CMD run --detach \