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fs: Fix non-progressing scanner (#13218)

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Scanner would keep doing the same cycle in FS mode leading to missed updates.

Add a few sanity checks and handle errors better.
This commit is contained in:
Klaus Post 2021-09-15 09:24:41 -07:00 committed by GitHub
parent bf409936e7
commit f98f115ac2
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 19 additions and 7 deletions
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17
cmd/data-scanner.go
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@ -405,11 +405,11 @@ func (f *folderScanner) scanFolder(ctx context.Context, folder cachedFolder, int
err := readDirFn(path.Join(f.root, folder.name), func(entName string, typ os.FileMode) error {
// Parse
entName = pathClean(path.Join(folder.name, entName))
if entName == "" {
if entName == "" || entName == folder.name {
if f.dataUsageScannerDebug {
console.Debugf(scannerLogPrefix+" no bucket (%s,%s)\n", f.root, entName)
console.Debugf(scannerLogPrefix+" no entity (%s,%s)\n", f.root, entName)
}
return errDoneForNow
return nil
}
bucket, prefix := path2BucketObjectWithBasePath(f.root, entName)
if bucket == "" {
@ -435,7 +435,9 @@ func (f *folderScanner) scanFolder(ctx context.Context, folder cachedFolder, int
if typ&os.ModeDir != 0 {
h := hashPath(entName)
_, exists := f.oldCache.Cache[h.Key()]
if h == thisHash {
return nil
}
this := cachedFolder{name: entName, parent: &thisHash, objectHealProbDiv: folder.objectHealProbDiv}
delete(abandonedChildren, h.Key()) // h.Key() already accounted for.
if exists {
@ -468,11 +470,14 @@ func (f *folderScanner) scanFolder(ctx context.Context, folder cachedFolder, int
item.heal = item.heal && f.healObjectSelect > 0
sz, err := f.getSize(item)
if err == errSkipFile {
if err != nil {
wait() // wait to proceed to next entry.
if err != errSkipFile && f.dataUsageScannerDebug {
console.Debugf(scannerLogPrefix+" getSize \"%v/%v\" returned err: %v\n", bucket, item.objectPath(), err)
}
return nil
}
// successfully read means we have a valid object.
foundObjects = true
// Remove filename i.e is the meta file to construct object name

9
cmd/fs-v1.go
View file

@ -258,6 +258,12 @@ func (fs *FSObjects) NSScanner(ctx context.Context, bf *bloomFilter, updates cha
updates <- totalCache.dui(dataUsageRoot, buckets)
return nil
}
for i, b := range buckets {
if isReservedOrInvalidBucket(b.Name, false) {
// Delete bucket...
buckets = append(buckets[:i], buckets[i+1:]...)
}
}
totalCache.Info.BloomFilter = bf.bytes()
@ -282,6 +288,7 @@ func (fs *FSObjects) NSScanner(ctx context.Context, bf *bloomFilter, updates cha
bCache.Info.Name = b.Name
}
bCache.Info.BloomFilter = totalCache.Info.BloomFilter
bCache.Info.NextCycle = wantCycle
upds := make(chan dataUsageEntry, 1)
var wg sync.WaitGroup
wg.Add(1)
@ -290,7 +297,7 @@ func (fs *FSObjects) NSScanner(ctx context.Context, bf *bloomFilter, updates cha
for update := range upds {
totalCache.replace(b.Name, dataUsageRoot, update)
if intDataUpdateTracker.debug {
logger.Info(color.Green("NSScanner:")+" Got update:", len(totalCache.Cache))
logger.Info(color.Green("NSScanner:")+" Got update: %v", len(totalCache.Cache))
}
cloned := totalCache.clone()
updates <- cloned.dui(dataUsageRoot, buckets)