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package mount
import (
"time"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/mount/ml"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/util/chunk_cache"
"github.com/seaweedfs/seaweedfs/weed/wdclient"
)
// MLIntegrationManager manages ML optimization integration for the main WFS
type MLIntegrationManager struct {
mlOptimization *ml.MLOptimization
fuseIntegration *ml.FUSEMLIntegration
enabled bool
}
// NewMLIntegrationManager creates a new ML integration manager
func NewMLIntegrationManager(chunkCache chunk_cache.ChunkCache, lookupFn wdclient.LookupFileIdFunctionType) *MLIntegrationManager {
// Create ML optimization with default config
config := ml.DefaultMLConfig()
mlOpt := ml.NewMLOptimization(config, chunkCache, lookupFn)
// Create FUSE integration
fuseInt := ml.NewFUSEMLIntegration(mlOpt)
manager := &MLIntegrationManager{
mlOptimization: mlOpt,
fuseIntegration: fuseInt,
enabled: true,
}
glog.V(1).Infof("ML integration manager initialized")
return manager
}
// NewMLIntegrationManagerWithConfig creates a new ML integration manager with custom configuration
func NewMLIntegrationManagerWithConfig(
chunkCache chunk_cache.ChunkCache,
lookupFn wdclient.LookupFileIdFunctionType,
prefetchWorkers int,
confidenceThreshold float64,
maxPrefetchAhead int,
batchSize int,
) *MLIntegrationManager {
config := &ml.MLConfig{
PrefetchWorkers: prefetchWorkers,
PrefetchQueueSize: prefetchWorkers * 4, // 4x workers for queue depth
PrefetchTimeout: 30 * time.Second,
EnableMLHeuristics: true,
SequentialThreshold: 5,
ConfidenceThreshold: confidenceThreshold,
MaxPrefetchAhead: maxPrefetchAhead,
PrefetchBatchSize: batchSize,
}
mlOpt := ml.NewMLOptimization(config, chunkCache, lookupFn)
// Create FUSE integration
fuseInt := ml.NewFUSEMLIntegration(mlOpt)
manager := &MLIntegrationManager{
mlOptimization: mlOpt,
fuseIntegration: fuseInt,
enabled: true,
}
glog.V(1).Infof("ML integration manager initialized with custom config: workers=%d, confidence=%.2f, prefetchAhead=%d, batchSize=%d",
prefetchWorkers, confidenceThreshold, maxPrefetchAhead, batchSize)
return manager
}
// EnableMLOptimization enables or disables ML optimization
func (mgr *MLIntegrationManager) EnableMLOptimization(enabled bool) {
mgr.enabled = enabled
if mgr.mlOptimization != nil {
mgr.mlOptimization.Enable(enabled)
}
if mgr.fuseIntegration != nil {
mgr.fuseIntegration.EnableMLOptimizations(enabled)
}
glog.V(1).Infof("ML optimization %s", map[bool]string{true: "enabled", false: "disabled"}[enabled])
}
// OnFileOpen should be called when a file is opened
func (mgr *MLIntegrationManager) OnFileOpen(inode uint64, entry *filer_pb.Entry, fullPath string, flags uint32, out *fuse.OpenOut) {
if !mgr.enabled || mgr.fuseIntegration == nil {
return
}
mgr.fuseIntegration.OnFileOpen(inode, entry, fullPath, flags, out)
}
// OnFileClose should be called when a file is closed
func (mgr *MLIntegrationManager) OnFileClose(inode uint64) {
if !mgr.enabled || mgr.fuseIntegration == nil {
return
}
mgr.fuseIntegration.OnFileClose(inode)
}
// OnFileRead should be called when a file is read
func (mgr *MLIntegrationManager) OnFileRead(inode uint64, offset int64, size int) {
if !mgr.enabled || mgr.fuseIntegration == nil {
return
}
mgr.fuseIntegration.OnFileRead(inode, offset, size)
}
// OnChunkAccess should be called when a chunk is accessed
func (mgr *MLIntegrationManager) OnChunkAccess(inode uint64, chunkIndex uint32, fileId string, cacheLevel int, isHit bool) {
if !mgr.enabled || mgr.fuseIntegration == nil {
return
}
mgr.fuseIntegration.OnChunkAccess(inode, chunkIndex, fileId, cacheLevel, isHit)
}
// OptimizeAttributes applies ML-specific attribute caching
func (mgr *MLIntegrationManager) OptimizeAttributes(inode uint64, out *fuse.AttrOut) {
if !mgr.enabled || mgr.fuseIntegration == nil {
return
}
mgr.fuseIntegration.OptimizeAttributes(inode, out)
}
// OptimizeEntryCache applies ML-specific entry caching
func (mgr *MLIntegrationManager) OptimizeEntryCache(inode uint64, entry *filer_pb.Entry, out *fuse.EntryOut) {
if !mgr.enabled || mgr.fuseIntegration == nil {
return
}
mgr.fuseIntegration.OptimizeEntryCache(inode, entry, out)
}
// ShouldEnableWriteback determines if writeback should be enabled for a file
func (mgr *MLIntegrationManager) ShouldEnableWriteback(inode uint64, entry *filer_pb.Entry) bool {
if !mgr.enabled || mgr.fuseIntegration == nil {
return false
}
return mgr.fuseIntegration.ShouldEnableWriteback(inode, entry)
}
// GetComprehensiveMetrics returns all ML optimization metrics
func (mgr *MLIntegrationManager) GetComprehensiveMetrics() *ml.FUSEMLMetrics {
if !mgr.enabled || mgr.fuseIntegration == nil {
return &ml.FUSEMLMetrics{}
}
metrics := mgr.fuseIntegration.GetOptimizationMetrics()
return &metrics
}
// IsEnabled returns whether ML optimization is enabled
func (mgr *MLIntegrationManager) IsEnabled() bool {
return mgr.enabled
}
// Shutdown gracefully shuts down the ML integration
func (mgr *MLIntegrationManager) Shutdown() {
glog.V(1).Infof("Shutting down ML integration manager...")
if mgr.fuseIntegration != nil {
mgr.fuseIntegration.Shutdown()
}
glog.V(1).Infof("ML integration manager shutdown complete")
}
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