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feat(storage): report backtrace only on read transactions (#5625)

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This commit is contained in:
Alexey Shekhirin
2023-11-29 18:39:15 +00:00
committed by GitHub
parent d9ef1a14d5
commit 5a7644709b
2 changed files with 21 additions and 16 deletions
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32
crates/storage/db/src/implementation/mdbx/tx.rs
View File

@ -176,28 +176,28 @@ impl<K: TransactionKind> MetricsHandler<K> {
} }
} }
/// Logs the backtrace of current call if the duration that the transaction has been open is /// Logs the backtrace of current call if the duration that the read transaction has been open
/// more than [LONG_TRANSACTION_DURATION]. /// is more than [LONG_TRANSACTION_DURATION].
/// The backtrace is recorded and logged just once, guaranteed by `backtrace_recorded` atomic. /// The backtrace is recorded and logged just once, guaranteed by `backtrace_recorded` atomic.
/// ///
/// NOTE: Backtrace is recorded using [Backtrace::force_capture], so `RUST_BACKTRACE` env var is /// NOTE: Backtrace is recorded using [Backtrace::force_capture], so `RUST_BACKTRACE` env var is
/// not needed. /// not needed.
fn log_backtrace_on_long_transaction(&self) { fn log_backtrace_on_long_transaction(&self) {
if self.backtrace_recorded.load(Ordering::Relaxed) { if !self.backtrace_recorded.load(Ordering::Relaxed) &&
return self.transaction_mode().is_read_only()
} {
let open_duration = self.start.elapsed();
if open_duration > LONG_TRANSACTION_DURATION {
self.backtrace_recorded.store(true, Ordering::Relaxed);
let open_duration = self.start.elapsed(); let backtrace = Backtrace::force_capture();
if open_duration > LONG_TRANSACTION_DURATION { debug!(
self.backtrace_recorded.store(true, Ordering::Relaxed); target: "storage::db::mdbx",
?open_duration,
let backtrace = Backtrace::force_capture(); ?backtrace,
debug!( "The database read transaction has been open for too long"
target: "storage::db::mdbx", );
?open_duration, }
?backtrace,
"The database transaction has been open for too long"
);
} }
} }
} }

5
crates/storage/db/src/metrics.rs
View File

@ -18,6 +18,11 @@ impl TransactionMode {
TransactionMode::ReadWrite => "read-write", TransactionMode::ReadWrite => "read-write",
} }
} }
/// Returns `true` if the transaction mode is read-only.
pub(crate) const fn is_read_only(&self) -> bool {
matches!(self, TransactionMode::ReadOnly)
}
} }
#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)] #[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]