public void conflateEvent(Conflatable conflatableObject, int bucketId, Long tailKey) {
    ConflationHandler conflationHandler =
        new ConflationHandler(conflatableObject, bucketId, tailKey);
    conflationExecutor.execute(conflationHandler);
  }
Take will choose a random BucketRegionQueue which is primary and will take the head element
from it.
geode-core/src/main/java/org/apache/geode/internal/cache/wan/parallel/ParallelGatewaySenderQueue.java