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package filer
import (
"strings"
"time"
"github.com/chrislusf/seaweedfs/weed/util/log"
"github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/wdclient"
)
func LookupByMasterClientFn(masterClient *wdclient.MasterClient) func(vids []string) (map[string]operation.LookupResult, error) {
return func(vids []string) (map[string]operation.LookupResult, error) {
m := make(map[string]operation.LookupResult)
for _, vid := range vids {
locs, _ := masterClient.GetVidLocations(vid)
var locations []operation.Location
for _, loc := range locs {
locations = append(locations, operation.Location{
Url: loc.Url,
PublicUrl: loc.PublicUrl,
})
}
m[vid] = operation.LookupResult{
VolumeId: vid,
Locations: locations,
}
}
return m, nil
}
}
func (f *Filer) loopProcessingDeletion() {
lookupFunc := LookupByMasterClientFn(f.MasterClient)
DeletionBatchSize := 100000 // roughly 20 bytes cost per file id.
var deletionCount int
for {
deletionCount = 0
f.fileIdDeletionQueue.Consume(func(fileIds []string) {
for len(fileIds) > 0 {
var toDeleteFileIds []string
if len(fileIds) > DeletionBatchSize {
toDeleteFileIds = fileIds[:DeletionBatchSize]
fileIds = fileIds[DeletionBatchSize:]
} else {
toDeleteFileIds = fileIds
fileIds = fileIds[:0]
}
deletionCount = len(toDeleteFileIds)
_, err := operation.DeleteFilesWithLookupVolumeId(f.GrpcDialOption, toDeleteFileIds, lookupFunc)
if err != nil {
if !strings.Contains(err.Error(), "already deleted") {
log.Infof("deleting fileIds len=%d error: %v", deletionCount, err)
}
} else {
log.Debugf("deleting fileIds len=%d", deletionCount)
}
}
})
if deletionCount == 0 {
time.Sleep(1123 * time.Millisecond)
}
}
}
func (f *Filer) DeleteChunks(chunks []*filer_pb.FileChunk) {
for _, chunk := range chunks {
if !chunk.IsChunkManifest {
f.fileIdDeletionQueue.EnQueue(chunk.GetFileIdString())
continue
}
dataChunks, manifestResolveErr := ResolveOneChunkManifest(f.MasterClient.LookupFileId, chunk)
if manifestResolveErr != nil {
log.Infof("failed to resolve manifest %s: %v", chunk.FileId, manifestResolveErr)
}
for _, dChunk := range dataChunks {
f.fileIdDeletionQueue.EnQueue(dChunk.GetFileIdString())
}
f.fileIdDeletionQueue.EnQueue(chunk.GetFileIdString())
}
}
func (f *Filer) deleteChunksIfNotNew(oldEntry, newEntry *Entry) {
if oldEntry == nil {
return
}
if newEntry == nil {
f.DeleteChunks(oldEntry.Chunks)
}
var toDelete []*filer_pb.FileChunk
newChunkIds := make(map[string]bool)
for _, newChunk := range newEntry.Chunks {
newChunkIds[newChunk.GetFileIdString()] = true
}
for _, oldChunk := range oldEntry.Chunks {
if _, found := newChunkIds[oldChunk.GetFileIdString()]; !found {
toDelete = append(toDelete, oldChunk)
}
}
f.DeleteChunks(toDelete)
}
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