[ARROW-2588] [Plasma] Random unique ids always use the same seed

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: C++ - Plasma
• External issue URL: https://github.com/apache/arrow/issues/18971
• Assignee: Unassigned
• Reporter: Antoine Pitrou
• Created: 16/May/18 11:57
• Updated: 11/Jan/23 07:21
• Resolved: 19/Feb/21 20:52

Description

Following GitHub PR #2039 (resolution to ARROW-2578), the random generator for random object ids is now using a constant default seed, meaning all processes will generate the same sequence of random ids:

$ python -c "from pyarrow import plasma; print(plasma.ObjectID.from_random())"
ObjectID(d022e7d520f8e938a14e188c47308cfef5fff7f7)
$ python -c "from pyarrow import plasma; print(plasma.ObjectID.from_random())"
ObjectID(d022e7d520f8e938a14e188c47308cfef5fff7f7)

As a sidenote, the plasma test suite should ideally test for this.