| … | |
… | |
| 644 | |
644 | |
| 645 | COMMON PITFALLS |
645 | COMMON PITFALLS |
| 646 | Unexpected Crashes |
646 | Unexpected Crashes |
| 647 | Remember that, by default, BDB will execute requests in parallel, in |
647 | Remember that, by default, BDB will execute requests in parallel, in |
| 648 | somewhat random order. That means that it is easy to run a "db_get" |
648 | somewhat random order. That means that it is easy to run a "db_get" |
| 649 | request on thesa me database as a concurrent "db_close" request, leading |
649 | request on the same database as a concurrent "db_close" request, leading |
| 650 | to a crash, silent data corruption, eventually the next world war on |
650 | to a crash, silent data corruption, eventually the next world war on |
| 651 | terrorism. |
651 | terrorism. |
| 652 | |
652 | |
| 653 | If you only ever use foreground requests (without a callback), this will |
653 | If you only ever use foreground requests (without a callback), this will |
| 654 | not be an issue. |
654 | not be an issue (unless you use threads). |
| 655 | |
655 | |
| 656 | Unexpected Freezes or Deadlocks |
656 | Unexpected Freezes or Deadlocks |
| 657 | Remember that, by default, BDB will execute requests in parallel, which |
657 | Remember that, by default, BDB will execute requests in parallel, which |
| 658 | easily leads to deadlocks (even concurrent put's on the same database |
658 | easily leads to deadlocks (even concurrent put's on the same database |
| 659 | can deadlock). |
659 | can deadlock). |
