public void incSecondaryQueueSize(int delta) {
    stats.incInt(secondaryEventQueueSizeId, delta);
  }
Increments the "secondaryEventQueueSize" stat by given delta.

@param delta an integer by which secondary event queue size to be increased
geode-core/src/main/java/org/apache/geode/internal/cache/wan/GatewaySenderStats.java