[volume] remove truncate idx file if size not healthy (#6043)

weed/storage/volume_checking.go

@@ -14,7 +14,7 @@ import (
 	"github.com/seaweedfs/seaweedfs/weed/util"
 )
 
-func CheckAndFixVolumeDataIntegrity(v *Volume, indexFile *os.File) (lastAppendAtNs uint64, err error) {
+func CheckVolumeDataIntegrity(v *Volume, indexFile *os.File) (lastAppendAtNs uint64, err error) {
 	var indexSize int64
 	if indexSize, err = verifyIndexFileIntegrity(indexFile); err != nil {
 		return 0, fmt.Errorf("verifyIndexFileIntegrity %s failed: %v", indexFile.Name(), err)
@@ -35,11 +35,7 @@ func CheckAndFixVolumeDataIntegrity(v *Volume, indexFile *os.File) (lastAppendAt
 		}
 	}
 	if healthyIndexSize < indexSize {
-		glog.Warningf("CheckAndFixVolumeDataIntegrity truncate idx file %s from %d to %d", indexFile.Name(), indexSize, healthyIndexSize)
-		err = indexFile.Truncate(healthyIndexSize)
-		if err != nil {
-			glog.Warningf("CheckAndFixVolumeDataIntegrity truncate idx file %s from %d to %d: %v", indexFile.Name(), indexSize, healthyIndexSize, err)
-		}
+		return 0, fmt.Errorf("CheckVolumeDataIntegrity %s failed: index size %d differs from healthy size %d", indexFile.Name(), indexSize, healthyIndexSize)
 	}
 	return
 }

weed/storage/volume_loading.go

@@ -135,7 +135,7 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
 		// capactiy overloading.
 		if !v.HasRemoteFile() {
 			glog.V(0).Infof("checking volume data integrity for volume %d", v.Id)
-			if v.lastAppendAtNs, err = CheckAndFixVolumeDataIntegrity(v, indexFile); err != nil {
+			if v.lastAppendAtNs, err = CheckVolumeDataIntegrity(v, indexFile); err != nil {
 				v.noWriteOrDelete = true
 				glog.V(0).Infof("volumeDataIntegrityChecking failed %v", err)
 			}