mirror of
https://github.com/scsibug/nostr-rs-relay.git
synced 2024-11-09 21:29:06 -05:00
improvement: log slow requests that return zero results
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parent
b24d2f9aaa
commit
677b7d39e9
59
src/db.rs
59
src/db.rs
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@ -636,9 +636,11 @@ pub async fn db_query(
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query_tx: tokio::sync::mpsc::Sender<QueryResult>,
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mut abandon_query_rx: tokio::sync::oneshot::Receiver<()>,
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) {
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let start = Instant::now();
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task::spawn_blocking(move || {
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let mut row_count: usize = 0;
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debug!("moved DB query to thread in {:?}", start.elapsed());
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let start = Instant::now();
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let mut row_count: usize = 0;
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// generate SQL query
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let (q, p) = query_from_sub(&sub);
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debug!("SQL generated in {:?}", start.elapsed());
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@ -647,44 +649,47 @@ pub async fn db_query(
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// cutoff for displaying slow queries
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let slow_cutoff = Duration::from_millis(1000);
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let start = Instant::now();
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let mut slow_first_event;
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if let Ok(conn) = pool.get() {
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// execute the query. Don't cache, since queries vary so much.
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let mut stmt = conn.prepare(&q)?;
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let mut event_rows = stmt.query(rusqlite::params_from_iter(p))?;
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let mut first_result = true;
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while let Some(row) = event_rows.next()? {
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let first_event_elapsed = start.elapsed();
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slow_first_event = first_event_elapsed >= slow_cutoff;
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if first_result {
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let first_result_elapsed = start.elapsed();
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// logging for slow queries; show sub and SQL
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if first_result_elapsed >= slow_cutoff {
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info!(
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"query req (slow): {:?} (cid: {}, sub: {:?})",
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sub, client_id, sub.id
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);
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info!(
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"query string (slow): {} (cid: {}, sub: {:?})",
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q, client_id, sub.id
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);
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} else {
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trace!(
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"query req: {:?} (cid: {}, sub: {:?})",
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sub,
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client_id,
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sub.id
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);
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trace!(
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"query string: {} (cid: {}, sub: {:?})",
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q,
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client_id,
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sub.id
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);
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}
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debug!(
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"first result in {:?} (cid: {}, sub: {:?})",
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first_result_elapsed, client_id, sub.id
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first_event_elapsed, client_id, sub.id
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);
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first_result = false;
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}
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// logging for slow queries; show sub and SQL
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//
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if slow_first_event {
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info!(
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"query req (slow): {:?} (cid: {}, sub: {:?})",
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sub, client_id, sub.id
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);
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info!(
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"query string (slow): {} (cid: {}, sub: {:?})",
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q, client_id, sub.id
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);
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} else {
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trace!(
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"query req: {:?} (cid: {}, sub: {:?})",
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sub,
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client_id,
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sub.id
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);
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trace!(
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"query string: {} (cid: {}, sub: {:?})",
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q,
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client_id,
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sub.id
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);
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}
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// check if this is still active
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// TODO: check every N rows
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if abandon_query_rx.try_recv().is_ok() {
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