The system outage was prolonged when an attempt to add a partition didn't work due to fragmentation, and required taking the database offline to compact it.

由于数据分散的原因，当Fours quare试图增加一个分区时没有成功，需要数据库离线才能对数据进行压缩。这也导致了系统宕机时间的延长。

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The assessment came with a warning: Operating procedures are available to maintain power in the unlikely event that a combination of severe conditions a power outage and delayed transmission projects occur at the same time as a prolonged heat wave with high humidity that keeps air conditioners running nearly non-stop.

WSJ: NE power supply helped by conservation, efficiency