[FLINK-24144] Improve DataGenerator to prevent excessive creation of new Random objects

• Type: Improvement
• Status: Open
• Priority: Not a Priority
• Resolution: Unresolved
• Affects Version/s: 1.14.0, 1.13.2
• Component/s: Documentation / Training / Exercises
• Assignee: Unassigned
• Reporter: Nico Kruber
• Created: 03/Sep/21 09:06
• Updated: 22/Apr/22 09:22

Description

For a couple of methods in DataGenerator, new Random objects are created with a specific seed. Instead, we could create a single Random object and reset the seed when needed.