主机故障，停车，显示失控灯号。

Enginefailure, stop engine, showed not under command signal lights.

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如果临时磁盘坏了，那么故障的范围仅仅是那台主机。

If an ephemeral disk fails, that failure is scoped to that host.

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在硬件故障时进行主机切换。

Host switching in case of hardware failure.

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在硬件故障时进行主机切换。

Host switching in case of hardware failure.

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