Conclusion: it is caused by setting agent
1. Check the global settings
Enter git config -- Global - e to check whether there are proxy settings for [HTTP] and [HTTPS] in the global configuration, such as proxy= socks://localhost:1080, if any, delete it.
2. Check the config in the current. Git file
In the current working directory, cat ./.Git/config
As shown in the figure above, delete the agent.
In order to solve the show() error caused by empty data, it is used during filtering! x. Isnullat (1) determines whether it is empty. If it is empty, it will be discarded
//Filter .getDouble(1) 1 refers to the first column, starting from 0
DF.filter(x => !x.isNullAt(1) && x.getDouble(1) < 1995).show(10)
Null/Hadoop binary/wintils.exe reports an error
because Windows lacks Hadoop common package, you need to download and unzip hadoop-common-2.2.0-bin-master package
Set the environment variable in the environment variable,
1. Create Hadoop in the user variable_Home variable name, variable value is the location of common package
2. Add% Hadoop in the system variable path_HOME%\bin;
click OK to save and restart the computer