fix: set delete request batch to empty when we load to fail requests (#17810)

Signed-off-by: Sandeep Sukhani <[email protected]>

Author: sandeepsukhani

pkg/compactor/deletion/delete_requests_manager.go

@@ -67,6 +67,7 @@ func NewDeleteRequestsManager(workingDir string, store DeleteRequestsStore, dele
 		batchSize:                 batchSize,
 		limits:                    limits,
 		processedSeries:           map[string]struct{}{},
+		currentBatch:              newDeleteRequestBatch(metrics),
 	}
 
 	var err error
@@ -333,7 +334,7 @@ func (d *DeleteRequestsManager) MarkPhaseStarted() {
 	status := statusSuccess
 	if batch, err := d.loadDeleteRequestsToProcess(DeleteRequestsAll); err != nil {
 		status = statusFail
-		d.currentBatch = nil
+		d.currentBatch = newDeleteRequestBatch(d.metrics)
 		level.Error(util_log.Logger).Log("msg", "failed to load delete requests to process", "err", err)
 	} else {
 		d.currentBatch = batch