MongoDB MapReduce & lt; 1 & gt;, mongodbmapreduce

MongoDB MapReduce practice <1>, mongodbmapreduce

• Requirement: a log table in the Mysql table requires an average record cycle of the statistical data. In practice, it may be difficult to use Mysql. Use the MongoDB you just came into contact, I can also draw some attention from Hadoop I studied last year. Besides, MongoDB supports MapReduce. I wanted to know more about it last year, but I was too busy and didn't have time. I just want to study it now.
• The command line is really tiring, so the kernel vue tool is used.
• Started:
  
• Step 1: import data (images found on the borrowed Internet ):
• Select MySQL database

• Establish Database Connection

• Select Table

• Select fields

• Complete