delete in ecj, add logs

weed/storage/erasure_coding/ec_volume_delete.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"os"
 
+	"github.com/seaweedfs/seaweedfs/weed/glog"
 	"github.com/seaweedfs/seaweedfs/weed/storage/types"
 	"github.com/seaweedfs/seaweedfs/weed/util"
 )
@@ -30,20 +31,48 @@ func (ev *EcVolume) DeleteNeedleFromEcx(needleId types.NeedleId) (err error) {
 
 	if err != nil {
 		if err == NotFoundError {
+			glog.Infof("❓ EC NEEDLE NOT FOUND: needle %d not in .ecx index for volume %d generation %d - skipping .ecj recording",
+				needleId, ev.VolumeId, ev.Generation)
 			return nil
 		}
+		glog.Errorf("❌ EC INDEX SEARCH ERROR: needle %d volume %d generation %d: %v", needleId, ev.VolumeId, ev.Generation, err)
 		return err
 	}
 
+	// Needle found and marked deleted in .ecx, now record in .ecj
+	glog.Infof("📝 EC NEEDLE FOUND: recording needle %d in .ecj for volume %d generation %d",
+		needleId, ev.VolumeId, ev.Generation)
+
 	b := make([]byte, types.NeedleIdSize)
 	types.NeedleIdToBytes(b, needleId)
 
 	ev.ecjFileAccessLock.Lock()
+	defer ev.ecjFileAccessLock.Unlock()
 
-	ev.ecjFile.Seek(0, io.SeekEnd)
-	ev.ecjFile.Write(b)
+	if ev.ecjFile == nil {
+		glog.Errorf("EC deletion: .ecj file is nil for volume %d generation %d", ev.VolumeId, ev.Generation)
+		return fmt.Errorf("ecjFile is nil")
+	}
 
-	ev.ecjFileAccessLock.Unlock()
+	_, err = ev.ecjFile.Seek(0, io.SeekEnd)
+	if err != nil {
+		glog.Errorf("EC deletion: failed to seek .ecj file for volume %d generation %d: %v", ev.VolumeId, ev.Generation, err)
+		return err
+	}
+
+	n, err := ev.ecjFile.Write(b)
+	if err != nil {
+		glog.Errorf("EC deletion: failed to write to .ecj file for volume %d generation %d: %v", ev.VolumeId, ev.Generation, err)
+		return err
+	}
+
+	if n != len(b) {
+		glog.Errorf("EC deletion: partial write to .ecj file for volume %d generation %d: wrote %d bytes, expected %d",
+			ev.VolumeId, ev.Generation, n, len(b))
+		return fmt.Errorf("partial write: wrote %d bytes, expected %d", n, len(b))
+	}
+
+	glog.Infof("✅ EC JOURNAL WRITE SUCCESS: wrote %d bytes to .ecj for volume %d generation %d", n, ev.VolumeId, ev.Generation)
 
 	return
 }