frostfs-node/pkg/local_object_storage/shard/shard.go
Anton Nikiforov edb1428248 [] Add metric readonly to get shards mode
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
2022-12-30 11:07:35 +03:00

355 lines
8.7 KiB
Go

package shard
import (
"context"
"sync"
"time"
"github.com/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor"
meta "github.com/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
"github.com/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
"github.com/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
"github.com/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache"
"github.com/TrueCloudLab/frostfs-node/pkg/util"
"github.com/TrueCloudLab/frostfs-node/pkg/util/logger"
oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
"go.uber.org/zap"
)
// Shard represents single shard of NeoFS Local Storage Engine.
type Shard struct {
*cfg
gc *gc
writeCache writecache.Cache
blobStor *blobstor.BlobStor
pilorama pilorama.ForestStorage
metaBase *meta.DB
tsSource TombstoneSource
}
// Option represents Shard's constructor option.
type Option func(*cfg)
// ExpiredTombstonesCallback is a callback handling list of expired tombstones.
type ExpiredTombstonesCallback func(context.Context, []meta.TombstonedObject)
// ExpiredObjectsCallback is a callback handling list of expired objects.
type ExpiredObjectsCallback func(context.Context, []oid.Address)
// DeletedLockCallback is a callback handling list of deleted LOCK objects.
type DeletedLockCallback func(context.Context, []oid.Address)
// MetricsWriter is an interface that must store shard's metrics.
type MetricsWriter interface {
// SetObjectCounter must set object counter taking into account object type.
SetObjectCounter(objectType string, v uint64)
// AddToObjectCounter must update object counter taking into account object
// type.
// Negative parameter must decrease the counter.
AddToObjectCounter(objectType string, delta int)
// IncObjectCounter must increment shard's object counter taking into account
// object type.
IncObjectCounter(objectType string)
// DecObjectCounter must decrement shard's object counter taking into account
// object type.
DecObjectCounter(objectType string)
// SetShardID must set (update) the shard identifier that will be used in
// metrics.
SetShardID(id string)
// SetReadonly must set shard readonly state.
SetReadonly(readonly bool)
}
type cfg struct {
m sync.RWMutex
refillMetabase bool
rmBatchSize int
useWriteCache bool
info Info
blobOpts []blobstor.Option
metaOpts []meta.Option
writeCacheOpts []writecache.Option
piloramaOpts []pilorama.Option
log *logger.Logger
gcCfg gcCfg
expiredTombstonesCallback ExpiredTombstonesCallback
expiredLocksCallback ExpiredObjectsCallback
deletedLockCallBack DeletedLockCallback
tsSource TombstoneSource
metricsWriter MetricsWriter
reportErrorFunc func(selfID string, message string, err error)
}
func defaultCfg() *cfg {
return &cfg{
rmBatchSize: 100,
log: &logger.Logger{Logger: zap.L()},
gcCfg: defaultGCCfg(),
reportErrorFunc: func(string, string, error) {},
}
}
// New creates, initializes and returns new Shard instance.
func New(opts ...Option) *Shard {
c := defaultCfg()
for i := range opts {
opts[i](c)
}
bs := blobstor.New(c.blobOpts...)
mb := meta.New(c.metaOpts...)
s := &Shard{
cfg: c,
blobStor: bs,
metaBase: mb,
tsSource: c.tsSource,
}
reportFunc := func(msg string, err error) {
s.reportErrorFunc(s.ID().String(), msg, err)
}
s.blobStor.SetReportErrorFunc(reportFunc)
if c.useWriteCache {
s.writeCache = writecache.New(
append(c.writeCacheOpts,
writecache.WithReportErrorFunc(reportFunc),
writecache.WithBlobstor(bs),
writecache.WithMetabase(mb))...)
}
if s.piloramaOpts != nil {
s.pilorama = pilorama.NewBoltForest(c.piloramaOpts...)
}
s.fillInfo()
return s
}
// WithID returns option to set the default shard identifier.
func WithID(id *ID) Option {
return func(c *cfg) {
c.info.ID = id
}
}
// WithBlobStorOptions returns option to set internal BlobStor options.
func WithBlobStorOptions(opts ...blobstor.Option) Option {
return func(c *cfg) {
c.blobOpts = opts
}
}
// WithMetaBaseOptions returns option to set internal metabase options.
func WithMetaBaseOptions(opts ...meta.Option) Option {
return func(c *cfg) {
c.metaOpts = opts
}
}
// WithWriteCacheOptions returns option to set internal write cache options.
func WithWriteCacheOptions(opts ...writecache.Option) Option {
return func(c *cfg) {
c.writeCacheOpts = opts
}
}
// WithPiloramaOptions returns option to set internal write cache options.
func WithPiloramaOptions(opts ...pilorama.Option) Option {
return func(c *cfg) {
c.piloramaOpts = opts
}
}
// WithLogger returns option to set Shard's logger.
func WithLogger(l *logger.Logger) Option {
return func(c *cfg) {
c.log = l
c.gcCfg.log = l
}
}
// WithWriteCache returns option to toggle write cache usage.
func WithWriteCache(use bool) Option {
return func(c *cfg) {
c.useWriteCache = use
}
}
// hasWriteCache returns bool if write cache exists on shards.
func (s Shard) hasWriteCache() bool {
return s.cfg.useWriteCache
}
// needRefillMetabase returns true if metabase is needed to be refilled.
func (s Shard) needRefillMetabase() bool {
return s.cfg.refillMetabase
}
// WithRemoverBatchSize returns option to set batch size
// of single removal operation.
func WithRemoverBatchSize(sz int) Option {
return func(c *cfg) {
c.rmBatchSize = sz
}
}
// WithGCWorkerPoolInitializer returns option to set initializer of
// worker pool with specified worker number.
func WithGCWorkerPoolInitializer(wpInit func(int) util.WorkerPool) Option {
return func(c *cfg) {
c.gcCfg.workerPoolInit = wpInit
}
}
// WithGCRemoverSleepInterval returns option to specify sleep
// interval between object remover executions.
func WithGCRemoverSleepInterval(dur time.Duration) Option {
return func(c *cfg) {
c.gcCfg.removerInterval = dur
}
}
// WithExpiredTombstonesCallback returns option to specify callback
// of the expired tombstones handler.
func WithExpiredTombstonesCallback(cb ExpiredTombstonesCallback) Option {
return func(c *cfg) {
c.expiredTombstonesCallback = cb
}
}
// WithExpiredLocksCallback returns option to specify callback
// of the expired LOCK objects handler.
func WithExpiredLocksCallback(cb ExpiredObjectsCallback) Option {
return func(c *cfg) {
c.expiredLocksCallback = cb
}
}
// WithRefillMetabase returns option to set flag to refill the Metabase on Shard's initialization step.
func WithRefillMetabase(v bool) Option {
return func(c *cfg) {
c.refillMetabase = v
}
}
// WithMode returns option to set shard's mode. Mode must be one of the predefined:
// - mode.ReadWrite;
// - mode.ReadOnly.
func WithMode(v mode.Mode) Option {
return func(c *cfg) {
c.info.Mode = v
}
}
// WithTombstoneSource returns option to set TombstoneSource.
func WithTombstoneSource(v TombstoneSource) Option {
return func(c *cfg) {
c.tsSource = v
}
}
// WithDeletedLockCallback returns option to specify callback
// of the deleted LOCK objects handler.
func WithDeletedLockCallback(v DeletedLockCallback) Option {
return func(c *cfg) {
c.deletedLockCallBack = v
}
}
// WithMetricsWriter returns option to specify storage of the
// shard's metrics.
func WithMetricsWriter(v MetricsWriter) Option {
return func(c *cfg) {
c.metricsWriter = v
}
}
// WithReportErrorFunc returns option to specify callback for handling storage-related errors
// in the background workers.
func WithReportErrorFunc(f func(selfID string, message string, err error)) Option {
return func(c *cfg) {
c.reportErrorFunc = f
}
}
func (s *Shard) fillInfo() {
s.cfg.info.MetaBaseInfo = s.metaBase.DumpInfo()
s.cfg.info.BlobStorInfo = s.blobStor.DumpInfo()
s.cfg.info.Mode = s.GetMode()
if s.cfg.useWriteCache {
s.cfg.info.WriteCacheInfo = s.writeCache.DumpInfo()
}
if s.pilorama != nil {
s.cfg.info.PiloramaInfo = s.pilorama.DumpInfo()
}
}
const (
// physical is a physically stored object
// counter type.
physical = "phy"
// logical is a logically stored object
// counter type (excludes objects that are
// stored but unavailable).
logical = "logic"
)
func (s *Shard) updateObjectCounter() {
if s.cfg.metricsWriter != nil && !s.GetMode().NoMetabase() {
cc, err := s.metaBase.ObjectCounters()
if err != nil {
s.log.Warn("meta: object counter read",
zap.Error(err),
)
return
}
s.cfg.metricsWriter.SetObjectCounter(physical, cc.Phy())
s.cfg.metricsWriter.SetObjectCounter(logical, cc.Logic())
}
}
// incObjectCounter increment both physical and logical object
// counters.
func (s *Shard) incObjectCounter() {
if s.cfg.metricsWriter != nil {
s.cfg.metricsWriter.IncObjectCounter(physical)
s.cfg.metricsWriter.IncObjectCounter(logical)
}
}
func (s *Shard) decObjectCounterBy(typ string, v uint64) {
if s.cfg.metricsWriter != nil {
s.cfg.metricsWriter.AddToObjectCounter(typ, -int(v))
}
}