DBA是应该增加容量不足堆的容量还是调整工作负荷？
Should the DBA increase the short heap or tune the workload?
同时如果电网负荷过重，还可能导致铁路和码头无法正常运行从而引起城市供电不足。
It also could clog railway lines and ports and trigger brown-outs as overloaded power grids collapse.
印度负荷过重的火车运输系统不堪重负，运往发电站的煤炭往往数量不足。
India's overloaded railways struggle to deliver enough coal to power stations.
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