oltpqc 代码需要从命令行中提供一个位置参数，用于表示警报阈值。
The oltpqc code expects a positional parameter on the command line for the alarm threshold.
如果未找到IP，或者字节阈值小于规则文件中指定的值，则运行inactive命令。
If the IP is not found, or the byte threshold is less than that specified in the rules file, the inactive command is run.
提醒：check_ganglia.py 命令仅在阈值过高时发出警告。
One caveat: The check_ganglia.py command only alerts when thresholds get too high.
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