apollo-biz/src/main/java/com/ctrip/framework/apollo/biz/service/CommitService.java/CommitService/batchDelete
class CommitService:  @Transactional
  public int batchDelete(String appId, String clusterName, String namespaceName, String operator){
    return commitRepository.batchDelete(appId, clusterName, namespaceName, operator);
  }