Priority: Major - P3
Affects Version/s: 3.4.1, 3.6.1, 4.0.0
Fix Version/s: None
Sprint:Storage Engines 2018-10-08, Storage Engines 2018-10-22, Storage Engines 2018-11-05, Storage Engines 2018-11-19, Storage Engines 2018-12-03, Storage Engines 2018-12-17, Storage Engines 2018-12-31
I ran this test on MongoDB 3.4.15 with the following config string:
- I inserted a document each in two collections, hence creating these collections in the process
- I dropped these two collections
Behaviour that needs investigation:
Even though the sweep server is configured to sweep every 10 secs and close handles if there are any (close_handle_minimum=1), after several minutes the dhandle count has not reduced to what was before creating the collections.
In the t2 data above:
- 2 creates at A, 2 drops at B
- Several minutes after the drops, after several data handle sweep attempts, active handles has NOT gone down.