Spark shell failed to access external file to read content

Spark shell failed to access external file to read content

Spark version 3.0, Hadoop version 3.2

Start spark normally, enter spark shell and enter Val B1= sc.textFile ("S3a: / / spark test / a.txt") is normal. When entering B1. Collect(). Foreach (println) to traverse and read the contents of the file, an error is reported

The error message is: java.lang.NumberFormatException : For input string: "100M"