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XL and FS use different tree walk ignored errors (#2707)

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This commit is contained in:
Anis Elleuch 2016-09-15 21:43:40 +01:00 committed by Harshavardhana
parent a1ff351f21
commit 7a549096de
8 changed files with 31 additions and 25 deletions
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4
cmd/fs-v1-multipart.go
View File

@ -77,7 +77,7 @@ func (fs fsObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
if walkResultCh == nil {
endWalkCh = make(chan struct{})
isLeaf := fs.isMultipartUpload
listDir := listDirFactory(isLeaf, fs.storage)
listDir := listDirFactory(isLeaf, fsTreeWalkIgnoredErrs, fs.storage)
walkResultCh = startTreeWalk(minioMetaBucket, multipartPrefixPath, multipartMarkerPath, recursive, listDir, isLeaf, endWalkCh)
}
for maxUploads > 0 {
@ -90,7 +90,7 @@ func (fs fsObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
// For any walk error return right away.
if walkResult.err != nil {
// File not found or Disk not found is a valid case.
if isErrIgnored(walkResult.err, walkResultIgnoredErrs) {
if isErrIgnored(walkResult.err, fsTreeWalkIgnoredErrs) {
eof = true
break
}

8
cmd/fs-v1.go
View File

@ -38,6 +38,12 @@ type fsObjects struct {
listPool *treeWalkPool
}
// list of all errors that can be ignored in tree walk operation in FS
var fsTreeWalkIgnoredErrs = []error{
errFileNotFound,
errVolumeNotFound,
}
// creates format.json, the FS format info in minioMetaBucket.
func initFormatFS(storageDisk StorageAPI) error {
return writeFSFormatData(storageDisk, newFSFormatV1())
@ -602,7 +608,7 @@ func (fs fsObjects) ListObjects(bucket, prefix, marker, delimiter string, maxKey
// object string does not end with "/".
return !strings.HasSuffix(object, slashSeparator)
}
listDir := listDirFactory(isLeaf, fs.storage)
listDir := listDirFactory(isLeaf, fsTreeWalkIgnoredErrs, fs.storage)
walkResultCh = startTreeWalk(bucket, prefix, marker, recursive, listDir, isLeaf, endWalkCh)
}
var fileInfos []FileInfo

13
cmd/tree-walk.go
View File

@ -21,15 +21,6 @@ import (
"strings"
)
// list of all errors that can be ignored in tree walk operation.
var walkResultIgnoredErrs = []error{
errFileNotFound,
errVolumeNotFound,
errDiskNotFound,
errDiskAccessDenied,
errFaultyDisk,
}
// Tree walk result carries results of tree walking.
type treeWalkResult struct {
entry string
@ -107,7 +98,7 @@ type isLeafFunc func(string, string) bool
// Returns function "listDir" of the type listDirFunc.
// isLeaf - is used by listDir function to check if an entry is a leaf or non-leaf entry.
// disks - used for doing disk.ListDir(). FS passes single disk argument, XL passes a list of disks.
func listDirFactory(isLeaf isLeafFunc, disks ...StorageAPI) listDirFunc {
func listDirFactory(isLeaf isLeafFunc, treeWalkIgnoredErrs []error, disks ...StorageAPI) listDirFunc {
// listDir - lists all the entries at a given prefix and given entry in the prefix.
listDir := func(bucket, prefixDir, prefixEntry string) (entries []string, delayIsLeaf bool, err error) {
for _, disk := range disks {
@ -142,7 +133,7 @@ func listDirFactory(isLeaf isLeafFunc, disks ...StorageAPI) listDirFunc {
}
// For any reason disk was deleted or goes offline, continue
// and list from other disks if possible.
if isErrIgnored(err, walkResultIgnoredErrs) {
if isErrIgnored(err, treeWalkIgnoredErrs) {
continue
}
break

12
cmd/tree-walk_test.go
View File

@ -185,7 +185,7 @@ func TestTreeWalk(t *testing.T) {
isLeaf := func(volume, prefix string) bool {
return !strings.HasSuffix(prefix, slashSeparator)
}
listDir := listDirFactory(isLeaf, disk)
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, disk)
// Simple test for prefix based walk.
testTreeWalkPrefix(t, listDir, isLeaf)
// Simple test when marker is set.
@ -219,7 +219,7 @@ func TestTreeWalkTimeout(t *testing.T) {
isLeaf := func(volume, prefix string) bool {
return !strings.HasSuffix(prefix, slashSeparator)
}
listDir := listDirFactory(isLeaf, disk)
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, disk)
// TreeWalk pool with 2 seconds timeout for tree-walk go routines.
pool := newTreeWalkPool(2 * time.Second)
@ -291,7 +291,7 @@ func TestListDir(t *testing.T) {
// create listDir function.
listDir := listDirFactory(func(volume, prefix string) bool {
return !strings.HasSuffix(prefix, slashSeparator)
}, disk1, disk2)
}, xlTreeWalkIgnoredErrs, disk1, disk2)
// Create file1 in fsDir1 and file2 in fsDir2.
disks := []StorageAPI{disk1, disk2}
@ -363,7 +363,7 @@ func TestRecursiveTreeWalk(t *testing.T) {
}
// Create listDir function.
listDir := listDirFactory(isLeaf, disk1)
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, disk1)
// Create the namespace.
var files = []string{
@ -469,7 +469,7 @@ func TestSortedness(t *testing.T) {
return !strings.HasSuffix(prefix, slashSeparator)
}
// Create listDir function.
listDir := listDirFactory(isLeaf, disk1)
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, disk1)
// Create the namespace.
var files = []string{
@ -543,7 +543,7 @@ func TestTreeWalkIsEnd(t *testing.T) {
return !strings.HasSuffix(prefix, slashSeparator)
}
// Create listDir function.
listDir := listDirFactory(isLeaf, disk1)
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, disk1)
// Create the namespace.
var files = []string{

2
cmd/xl-v1-common.go
View File

@ -62,7 +62,7 @@ func (xl xlObjects) isObject(bucket, prefix string) (ok bool) {
return true
}
// Ignore for file not found, disk not found or faulty disk.
if isErrIgnored(err, walkResultIgnoredErrs) {
if isErrIgnored(err, xlTreeWalkIgnoredErrs) {
continue
}
errorIf(err, "Unable to stat a file %s/%s/%s", bucket, prefix, xlMetaJSONFile)

2
cmd/xl-v1-list-objects.go
View File

@ -31,7 +31,7 @@ func (xl xlObjects) listObjects(bucket, prefix, marker, delimiter string, maxKey
if walkResultCh == nil {
endWalkCh = make(chan struct{})
isLeaf := xl.isObject
listDir := listDirFactory(isLeaf, xl.getLoadBalancedDisks()...)
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, xl.getLoadBalancedDisks()...)
walkResultCh = startTreeWalk(bucket, prefix, marker, recursive, listDir, isLeaf, endWalkCh)
}

6
cmd/xl-v1-multipart.go
View File

@ -95,7 +95,7 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
if walkerCh == nil {
walkerDoneCh = make(chan struct{})
isLeaf := xl.isMultipartUpload
listDir := listDirFactory(isLeaf, xl.getLoadBalancedDisks()...)
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, xl.getLoadBalancedDisks()...)
walkerCh = startTreeWalk(minioMetaBucket, multipartPrefixPath, multipartMarkerPath, recursive, listDir, isLeaf, walkerDoneCh)
}
// Collect uploads until we have reached maxUploads count to 0.
@ -109,7 +109,7 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
// For any walk error return right away.
if walkResult.err != nil {
// File not found or Disk not found is a valid case.
if isErrIgnored(walkResult.err, walkResultIgnoredErrs) {
if isErrIgnored(walkResult.err, xlTreeWalkIgnoredErrs) {
continue
}
return ListMultipartsInfo{}, err
@ -154,7 +154,7 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
}
nsMutex.RUnlock(minioMetaBucket, pathJoin(mpartMetaPrefix, bucket, entry), opsID)
if err != nil {
if isErrIgnored(err, walkResultIgnoredErrs) {
if isErrIgnored(err, xlTreeWalkIgnoredErrs) {
continue
}
return ListMultipartsInfo{}, err

9
cmd/xl-v1.go
View File

@ -67,6 +67,15 @@ type xlObjects struct {
objCacheEnabled bool
}
// list of all errors that can be ignored in tree walk operation in XL
var xlTreeWalkIgnoredErrs = []error{
errFileNotFound,
errVolumeNotFound,
errDiskNotFound,
errDiskAccessDenied,
errFaultyDisk,
}
func repairDiskMetadata(storageDisks []StorageAPI) error {
// Attempt to load all `format.json`.
formatConfigs, sErrs := loadAllFormats(storageDisks)