in flink-connector-cassandra/src/main/java/org/apache/flink/streaming/connectors/cassandra/CassandraSinkBase.java [112:133]
public void close() throws Exception {
try {
checkAsyncErrors();
flush();
checkAsyncErrors();
} finally {
try {
if (session != null) {
session.close();
}
} catch (Exception e) {
log.error("Error while closing session.", e);
}
try {
if (cluster != null) {
cluster.close();
}
} catch (Exception e) {
log.error("Error while closing cluster.", e);
}
}
}