输入和输出参数的数量不应太多。

The number of input and output parameters should not be very high.

youdao

解决方案： 检查 CREATE PROCEDURE 语句，确保传递的输入和输出参数的数量和数据类型都正确。

Solution: Check the CREATE PROCEDURE statement and make sure you are passing the correct number of input and output parameters with proper data types.

youdao

这个参数决定把 map 输出复制到 reduce 所使用的线程数量，默认值是 5。

This parameter determines the number of threads used to copy map outputs to the reducer, 5 by default.

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