refactor(backends): clean up resources produced by memtable
#24167
| Job | Run time |
|---|---|
| 51s | |
| 51s | |
| 1m 54s | |
| 2m 12s | |
| 13m 14s | |
| 6m 30s | |
| 7m 30s | |
| 13m 9s | |
| 4m 28s | |
| 13m 5s | |
| 3m 32s | |
| 12m 13s | |
| 3m 16s | |
| 13m 15s | |
| 4m 0s | |
| 2m 43s | |
| 4m 55s | |
| 3m 48s | |
| 5m 20s | |
| 5m 9s | |
| 11m 42s | |
| 4m 50s | |
| 10m 20s | |
| 6m 59s | |
| 8m 30s | |
| 5m 49s | |
| 13m 15s | |
| 9m 13s | |
| 5m 9s | |
| 4m 2s | |
| 3m 23s | |
| 4m 11s | |
| 2m 57s | |
| 5m 35s | |
| 4m 26s | |
| 7m 11s | |
| 5m 37s | |
| 5m 3s | |
| 7m 58s | |
| 7m 23s | |
| 8m 28s | |
| 5m 52s | |
| 10m 59s | |
| 4m 21s | |
| 4m 39s | |
| 4m 35s | |
| 3m 38s | |
| 9m 13s | |
| 4m 56s | |
| 4m 43s | |
| 5m 23s | |
| 3m 54s | |
| 7m 37s | |
| 12m 18s | |
| 11m 3s | |
| 1s | |
| 5h 57m 8s |