io.lettuce.core.failover.metrics

Interface CircuitBreakerMetrics

@Experimental
public interface CircuitBreakerMetrics

Interface for sliding window metrics. Allows tracking of success and failure counts within a configurable window.

Implementations must be:

• Thread-safe: Safe for concurrent access from multiple threads
• Efficient: Minimal memory overhead and fast operations
• Time-based: Automatic expiration of old data outside the window

Since:

7.4

Author:

Ali Takavci

Method Summary

Modifier and Type	Method and Description
MetricsSnapshot	getSnapshot() Get a snapshot of the current metrics within the time window.
void	recordFailure() Record a failed command execution.
void	recordSuccess() Record a successful command execution.

Method Detail

recordSuccess

void recordSuccess()

Record a successful command execution.

recordFailure

void recordFailure()

Record a failed command execution.

getSnapshot

MetricsSnapshot getSnapshot()

Get a snapshot of the current metrics within the time window. This is a point-in-time view and does not change after being returned. Use the snapshot to access success count, failure count, total count, and failure rate.

Returns:

an immutable snapshot of current metrics