This log value is used to get only error messages in the logs.

此日志值用于仅获取日志中的错误消息。

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To use this additional logging, append the keyword and the value to the log level parameter, separated by a colon (:).

要使用这些额外的日志记录，将关键字和值附加到日志级别参数，用冒号(：)分割。

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The value of 0 disables logging into the log file.

值 0 表示禁止记录到日志文件中。

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Data previously thought of as information poor or impossible to analyze (e.g. big unstructured data sets, log files, etc.) now offer new value and business potential.

FORBES: Keep Your Data Forever: Three Tips For Smarter Storage

Tests running at two big sawmills, in Europe and in America, suggest that the improvement in yield can run from 2% to 18% for different kinds of tree, with an average gain of 10% in the value of the timber produced from a log.

ECONOMIST: Chopping wood