dst: add hardRestart command

polarsignals / frostdb

❄️ Coolest database around 🧊 Embeddable column database written in Go.

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dst: add hardRestart command #895

Closed asubiotto closed 3 days ago

asubiotto commented 2 months ago

This simulates a hard restart by calling the vfs_shutdown hook on the wasm host module to error out all filesystem calls.

[!NOTE] This PR is currently blocked on the resolution of #916, a bug that was found with DST but requires a more fundamental rearchitecture of the WAL.

Bugs found:

[x] #914
[ ] #916

asubiotto commented 2 months ago

~~I'm not very happy with this PR since it's not a complete solution given open FDs. Will keep this up while I see how we can simulate wasi syscalls.~~ The PR has been updated to use hooks into a VFS to simulate a hard shutdown, which is a more complete solution.