fix(storage): ignore errors on shutdown.

[arkbriar]

Signed-off-by: arkbriar arkbriar@gmail.com

Shutdown of secondary storage might panic when the whole runtime's shutting down.

It's ok to ignore the errors here.

---- disk::_blob_slt_ stdout ----
thread 'tokio-runtime-worker' panicked at 'empty rowset', src/storage/secondary/rowset/rowset_builder.rs:104:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread 'disk::_blob_slt_' panicked at 'called `Result::unwrap()` on an `Err` value: ()', .../risinglight/src/storage/secondary/mod.rs:142:44

[skyzh]

LGTM. But the error in the PR body empty rowset should be fixed...

[arkbriar]

LGTM. But the error in the PR body empty rowset should be fixed...

Oops, forget about the PR. What I intended to fix never happens when they use the same runtime. I'm totally wrong about the reason. The root cause is still the problem we've talk about in #493 .

Could u please revert the commit here? I think we need to propagate the panic in compactor to the main thread to make it quit instead of wrapping errors.

[skyzh]

Sure, let's get this reverted.