Topic: The truncate-then-reopen sequence is not atomic; a crash between steps 2 and 4 leaves a valid but empty WAL with no open handle, which is safe but worth reasoning through

Date: 2026-05-29

Time: 11:18

I have enough from the observations to explain this. The truncate method source was cut off at line 200 but I can see the critical structure. Let me also check the LSM WAL truncate for comparison, since it's a simpler variant of the same pattern.