jdbc-protolib/src/main/java/com/streamsets/pipeline/lib/jdbc/multithread/JdbcBaseRunnable.java
private void initGaugeIfNeeded() {
    gaugeMap.put(THREAD_NAME, Thread.currentThread().getName());
    gaugeMap.put(STATUS, "");
    gaugeMap.put(TABLES_OWNED_COUNT, tableReadContextCache.size());
    gaugeMap.put(CURRENT_TABLE, "");
  }
private void initGaugeIfNeeded() {
    gaugeMap.put(THREAD_NAME, Thread.currentThread().getName());
    gaugeMap.put(STATUS, "");
    gaugeMap.put(TABLES_OWNED_COUNT, tableReadContextCache.size());
    gaugeMap.put(CURRENT_TABLE, "");
  }
Initialize the gauge with needed information