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db: enable WAL and index the pending-task lease query

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The lease/earliest_run_after queries full-scanned tasks, and the
rollback journal blocked readers behind worker writes. journal_mode=WAL
(persistent, idempotent) plus idx_tasks_pending(status, run_after)
covers both without a schema migration.
This commit is contained in:
YoursFunny
2026-08-08 20:26:07 +08:00
parent 44cba8abe0
commit ebc0122264
2 changed files with 8 additions and 2 deletions
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crates/xmedia-bot/src/queue.rs
+4 -2
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@@ -83,9 +83,11 @@ fn scaled_retry_delay(base: f64, attempts: i32) -> f64 {
fn ensure_schema(conn: &rusqlite::Connection) -> rusqlite::Result<()> {
conn.execute_batch(
"CREATE TABLE IF NOT EXISTS tasks (id TEXT PRIMARY KEY, payload TEXT NOT NULL, \
"PRAGMA journal_mode=WAL; \
CREATE TABLE IF NOT EXISTS tasks (id TEXT PRIMARY KEY, payload TEXT NOT NULL, \
run_after REAL NOT NULL, attempts INTEGER NOT NULL, status TEXT NOT NULL, \
locked_until REAL NOT NULL, created_at REAL NOT NULL);",
locked_until REAL NOT NULL, created_at REAL NOT NULL); \
CREATE INDEX IF NOT EXISTS idx_tasks_pending ON tasks(status, run_after);",
)
}