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Author SHA1 Message Date
Armando Ruocco
0e5a0caf5b
Merge 5cac225e33 into 921b20c249 2025-11-26 10:05:19 -07:00
Armando Ruocco
5cac225e33 fix: prevent memory leak by periodically cleaning up expired cache entries
Signed-off-by: Armando Ruocco <armando.ruocco@enterprisedb.com>
2025-11-25 18:29:22 +01:00
2 changed files with 5 additions and 10 deletions

View File

@ -55,7 +55,6 @@ type ExtendedClient struct {
cachedObjects []cachedEntry cachedObjects []cachedEntry
mux *sync.Mutex mux *sync.Mutex
cleanupInterval time.Duration cleanupInterval time.Duration
cleanupDone chan struct{} // Signals when cleanup routine exits
} }
// NewExtendedClient returns an extended client capable of caching secrets on the 'Get' operation. // NewExtendedClient returns an extended client capable of caching secrets on the 'Get' operation.
@ -69,7 +68,6 @@ func NewExtendedClient(
Client: baseClient, Client: baseClient,
mux: &sync.Mutex{}, mux: &sync.Mutex{},
cleanupInterval: DefaultCleanupIntervalSeconds * time.Second, cleanupInterval: DefaultCleanupIntervalSeconds * time.Second,
cleanupDone: make(chan struct{}),
} }
// Start the background cleanup routine // Start the background cleanup routine
@ -227,7 +225,6 @@ func (e *ExtendedClient) Patch(
// startCleanupRoutine periodically removes expired entries from the cache. // startCleanupRoutine periodically removes expired entries from the cache.
// It runs until the context is cancelled. // It runs until the context is cancelled.
func (e *ExtendedClient) startCleanupRoutine(ctx context.Context) { func (e *ExtendedClient) startCleanupRoutine(ctx context.Context) {
defer close(e.cleanupDone)
contextLogger := log.FromContext(ctx).WithName("extended_client_cleanup") contextLogger := log.FromContext(ctx).WithName("extended_client_cleanup")
ticker := time.NewTicker(e.cleanupInterval) ticker := time.NewTicker(e.cleanupInterval)
defer ticker.Stop() defer ticker.Stop()

View File

@ -302,12 +302,10 @@ var _ = Describe("ExtendedClient Cache Cleanup", func() {
// Cancel the context immediately // Cancel the context immediately
cancel() cancel()
// Verify the cleanup routine actually stops by waiting for the done channel // Give the goroutine time to stop
select { time.Sleep(50 * time.Millisecond)
case <-ec.cleanupDone:
// Success: cleanup routine exited as expected // The goroutine should have stopped gracefully (no panic or hanging)
case <-time.After(1 * time.Second): // This test mainly verifies the cleanup routine respects context cancellation
Fail("cleanup routine did not stop within timeout")
}
}) })
}) })