apollo-configservice/src/main/java/com/ctrip/framework/apollo/configservice/service/AccessKeyServiceWithCache.java/AccessKeyServiceWithCache/rebuildAccessKeyCache
class AccessKeyServiceWithCache:  private void rebuildAccessKeyCache() {
    Transaction transaction = Tracer.newTransaction("Apollo.AccessKeyServiceWithCache",
        "rebuildCache");
    try {
      deleteAccessKeyCache();
      transaction.setStatus(Transaction.SUCCESS);
    } catch (Throwable ex) {
      transaction.setStatus(ex);
      logger.error("Rebuild cache failed", ex);
    } finally {
      transaction.complete();
    }
  }