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Progress bar while importing huge .sql file

The last time I had to import a dump file with a size of 6 GB, it felt like an eternity. I sat there, staring at the screen, pondering the mysteries of the universe and wondering when the import would finally be complete. It’s in moments like these that you realize how valuable your time is. What if there is a way to have a progress bar to provide insights into what’s happening? A real-time progress bar not only saves you from the agony of uncertainty but also allows you to better manage your time.

A Solution Found

I found the answer to my problem in this post: How can I monitor the progress of an import of a large .sql file? This informative article provided a simple but effective way to track the progress of SQL file imports using a nifty utility called Pipe Viewer (pv).

Traditional Approach

Traditionally, I would use the following command for importing a large SQL file into a MySQL database:

mysql -u xxx -p dbname < hugesqlfile.sql

This command gets the job done, but it leaves you in the dark regarding the progress of the import. You have no idea how much data has been imported, how much is left, or an estimated time of completion.

Enter Pipe Viewer (pv)

After installing the Pipe Viewer (pv), the game changes entirely. You can now use the following command to not only import your SQL file but also monitor its progress in real-time:

pv hugesqlfile.sql | mysql -u xxx -p dbname

What to Expect

The result should be similar to a dynamically updating status line showing key metrics such as:

  • Uploaded: The amount of data that has been transferred.
  • Elapsed Time: The time that has passed since the start of the operation.
  • Speed and ETA: The current data transfer speed and an estimated time of completion.

This is invaluable for both your peace of mind and your productivity. Knowing the speed and ETA allows you to make informed decisions, like whether you have time for a coffee break or need to dive into optimizing the import process.

Why This Method is a Game-Changer

The inclusion of pv in your SQL import process offers several advantages:

  1. Immediate Feedback: You can tell at a glance whether the import is proceeding as expected.
  2. Resource Management: If the import is going slower than expected, you can start troubleshooting immediately rather than finding out too late.
  3. Time Management: Knowing how much time an operation will take allows you to plan other activities or tasks in parallel.

Final Thoughts

The use of pv for monitoring SQL imports is a simple yet powerful way to reclaim your time and sanity. Now, instead of aimlessly waiting and hoping for the best, you can monitor your data imports in real time and make the most out of your valuable time.

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