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Streaming / Log Data in Apache
Generally, most of the data that is to be analyzed will be produced by various data sources like applications servers, social networking sites, cloud servers, and enterprise servers. This data will be in the form of log files and events.
Log file − In general, a log file is a file that lists events/actions that occur in an operating system.
Example:
web servers list every request made to the server in the log files.
On harvesting such log data, we can get information about −the application performance and locate various software and hardware failures. the user behavior and derive better business insights. The traditional method of transferring data into the HDFS system is to use the put command. Let us see how to use the put command.