面向事务系统中延迟管理成本的缓解
Mitigation of Delayed Management Costs in Transaction-Oriented Systems
摘要：
面向交易的复杂网络（TON）的大量例子可以在各种学科中找到，包括信息和通信技术、金融、商品交易和房地产。TON中的事务作为与网络节点相关联的子事务序列来执行，并且如果每个子事务都被提交，则被提交。子事务在主机节点上产生双重开销：固定的瞬时操作成本和长期管理成本（例如存档和支持），其可能随事务长度呈指数级增长。如果总成本超过节点容量，则节点失败，并且与节点关联的所有子事务及其父分布式事务被中止。TON弹性可以根据外部工作负载或导致TON部分或完全阻塞的固有节点故障率来测量。我们证明，在一定条件下，这两个措施是等价的。我们进一步表明，指数增长的长期管理成本可以通过调整有效的运营成本来缓解：换句话说，未来的维护成本可以被吸收到瞬态的运营成本。
英文摘要：
Abundant examples of complex transaction-oriented networks (TONs) can be found in a variety of disciplines, including information and communication technology, finances, commodity trading, and real estate. A transaction in a TON is executed as a sequence of subtransactions associated with the network nodes, and is committed if every subtransaction is committed. A subtransaction incurs a two-fold overhead on the host node: the fixed transient operational cost and the cost of long-term management (e.g. archiving and support) that potentially grows exponentially with the transaction length. If the overall cost exceeds the node capacity, the node fails and all subtransaction incident to the node, and their parent distributed transactions, are aborted. A TON resilience can be measured in terms of either external workloads or intrinsic node fault rates that cause the TON to partially or fully choke. We demonstrate that under certain conditions, these two measures are equivalent. We further show that the exponential growth of the long-term management costs can be mitigated by adjusting the effective operational cost: in other words, that the future maintenance costs could be absorbed into the transient operational costs.
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