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Pyspark: Is there an equivalent method to pandas info ()? 14 Is there an equivalent method to pandas info () method in PySpark? I am trying to gain basic statistics about a dataframe in PySpark, such as: Number of columns and rows Number of nulls Size of dataframe Info () method in pandas provides all these statistics
http - How to add login credentials to URL - Stack Overflow The web server doesn't care about anything past the "?" This data gets sent to the application If you're actually authenticating to the application you would need to check the app's documentation for the correct parameter names In the past, you could supply the username:password@domain in the URL, but this has been disabled in many recent browsers because of security risks Currently, the
Using openssl to get the certificate from a server Here is my working command: openssl s_client -connect host:port -key our_private_key pem -showcerts \ -cert our_server-signed_cert pem Hopefully this is a nudge in the right direction for anyone who could do with some more info
log4j logging hierarchy order - Stack Overflow What is the hierarchy of log4j logging? DEBUG INFO WARN ERROR FATAL Which one provides the highest logging which would be helpful to troubleshoot issues? Can any one provide the order or hierarchy
logging - When to use the different log levels - Stack Overflow Info - Generally useful information to log (service start stop, configuration assumptions, etc) Info I want to always have available but usually don't care about under normal circumstances This is my out-of-the-box config level Warn - Anything that can potentially cause application oddities, but for which I am automatically recovering