zentol commented on a change in pull request #19059:
URL: https://github.com/apache/flink/pull/19059#discussion_r825733192



##########
File path: 
flink-connectors/flink-connector-cassandra/src/test/java/org/apache/flink/streaming/connectors/cassandra/CassandraConnectorITCase.java
##########
@@ -402,8 +399,10 @@ public void createTable() {
     public void dropTables() {
         // need to drop tables in case of retrials. Need to drop all the tables
         // that are created in test because this method is executed with every 
test
-        session.execute(DROP_KEYSPACE_QUERY);
-        session.execute(CREATE_KEYSPACE_QUERY);
+        synchronized (this) {

Review comment:
       correct.




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