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add sync commit config for store

This commit is contained in:
siddontang 2014-10-16 09:35:35 +08:00
parent 028b9fbd55
commit 522f77a7a5
11 changed files with 115 additions and 99 deletions
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2
config/config.go
View File

@ -63,8 +63,8 @@ type Config struct {
DataDir string `toml:"data_dir"`
DBName string `toml:"db_name"`
DBPath string `toml:"db_path"`
DBSyncCommit int `toml:"db_sync_commit"`
LevelDB LevelDBConfig `toml:"leveldb"`

6
config/config.toml
View File

@ -35,6 +35,12 @@ db_name = "leveldb"
# If not set, use data_dir/"db_name"_data
db_path = ""
# Sync commit to disk if possible
# 0: no sync
# 1: sync every second
# 2: sync every commit
db_sync_commit = 0
# enable replication or not
use_replication = true

8
etc/ledis.conf
View File

@ -35,6 +35,12 @@ db_name = "leveldb"
# If not set, use data_dir/"db_name"_data
db_path = ""
# Sync commit to disk if possible
# 0: no sync
# 1: sync every second
# 2: sync every commit
db_sync_commit = 0
# enable replication or not
use_replication = true
@ -81,7 +87,7 @@ compression = true
[snapshot]
# Path to store snapshot dump file
# if not set, use data_dir/snapshot
# snapshot file name format is snap-2006-01-02T15:04:05.999999999.dmp
# snapshot file name format is dmp-2006-01-02T15:04:05.999999999
path = ""
# Reserve newest max_num snapshot dump files

17
rpl/goleveldb_store.go
View File

@ -21,8 +21,6 @@ type GoLevelDBStore struct {
first uint64
last uint64
lastCommit time.Time
}
func (s *GoLevelDBStore) FirstID() (uint64, error) {
@ -134,17 +132,7 @@ func (s *GoLevelDBStore) StoreLogs(logs []*Log) error {
w.Put(key, buf.Bytes())
}
n := time.Now()
if s.cfg.Replication.SyncLog == 2 ||
(s.cfg.Replication.SyncLog == 1 && n.Sub(s.lastCommit) > time.Second) {
err = w.SyncCommit()
} else {
err = w.Commit()
}
s.lastCommit = n
if err != nil {
if err = w.Commit(); err != nil {
return err
}
@ -268,7 +256,7 @@ func (s *GoLevelDBStore) open() error {
return err
}
func NewGoLevelDBStore(base string) (*GoLevelDBStore, error) {
func NewGoLevelDBStore(base string, syncLog int) (*GoLevelDBStore, error) {
cfg := config.NewConfigDefault()
cfg.DBName = "goleveldb"
cfg.DBPath = base
@ -276,6 +264,7 @@ func NewGoLevelDBStore(base string) (*GoLevelDBStore, error) {
cfg.LevelDB.CacheSize = 64 * 1024 * 1024
cfg.LevelDB.WriteBufferSize = 64 * 1024 * 1024
cfg.LevelDB.Compression = false
cfg.DBSyncCommit = syncLog
s := new(GoLevelDBStore)
s.cfg = cfg

2
rpl/rpl.go
View File

@ -49,7 +49,7 @@ func NewReplication(cfg *config.Config) (*Replication, error) {
r.cfg = cfg
var err error
if r.s, err = NewGoLevelDBStore(path.Join(base, "wal")); err != nil {
if r.s, err = NewGoLevelDBStore(path.Join(base, "wal"), cfg.Replication.SyncLog); err != nil {
return nil, err
}

2
rpl/store_test.go
View File

@ -16,7 +16,7 @@ func TestGoLevelDBStore(t *testing.T) {
defer os.RemoveAll(dir)
// New level
l, err := NewGoLevelDBStore(dir)
l, err := NewGoLevelDBStore(dir, 0)
if err != nil {
t.Fatalf("err: %v ", err)
}

70
store/db.go
View File

@ -1,15 +1,27 @@
package store
import (
"github.com/siddontang/ledisdb/config"
"github.com/siddontang/ledisdb/store/driver"
"sync"
"time"
)
type DB struct {
driver.IDB
db driver.IDB
name string
st *Stat
cfg *config.Config
lastCommit time.Time
m sync.Mutex
}
func (db *DB) Close() error {
return db.db.Close()
}
func (db *DB) String() string {
@ -20,43 +32,46 @@ func (db *DB) NewIterator() *Iterator {
db.st.IterNum.Add(1)
it := new(Iterator)
it.it = db.IDB.NewIterator()
it.it = db.db.NewIterator()
it.st = db.st
return it
}
func (db *DB) Get(key []byte) ([]byte, error) {
v, err := db.IDB.Get(key)
v, err := db.db.Get(key)
db.st.statGet(v, err)
return v, err
}
func (db *DB) Put(key []byte, value []byte) error {
db.st.PutNum.Add(1)
return db.IDB.Put(key, value)
if db.needSyncCommit() {
return db.db.SyncPut(key, value)
} else {
return db.db.Put(key, value)
}
}
func (db *DB) Delete(key []byte) error {
db.st.DeleteNum.Add(1)
return db.IDB.Delete(key)
}
func (db *DB) SyncPut(key []byte, value []byte) error {
db.st.SyncPutNum.Add(1)
return db.IDB.SyncPut(key, value)
if db.needSyncCommit() {
return db.db.SyncDelete(key)
} else {
return db.db.Delete(key)
}
func (db *DB) SyncDelete(key []byte) error {
db.st.SyncDeleteNum.Add(1)
return db.IDB.SyncDelete(key)
}
func (db *DB) NewWriteBatch() *WriteBatch {
db.st.BatchNum.Add(1)
wb := new(WriteBatch)
wb.IWriteBatch = db.IDB.NewWriteBatch()
wb.wb = db.db.NewWriteBatch()
wb.st = db.st
wb.db = db
return wb
}
@ -65,7 +80,7 @@ func (db *DB) NewSnapshot() (*Snapshot, error) {
var err error
s := &Snapshot{}
if s.ISnapshot, err = db.IDB.NewSnapshot(); err != nil {
if s.ISnapshot, err = db.db.NewSnapshot(); err != nil {
return nil, err
}
s.st = db.st
@ -77,7 +92,7 @@ func (db *DB) Compact() error {
db.st.CompactNum.Add(1)
t := time.Now()
err := db.IDB.Compact()
err := db.db.Compact()
db.st.CompactTotalTime.Add(time.Now().Sub(t))
@ -107,7 +122,7 @@ func (db *DB) RevRangeLimitIterator(min []byte, max []byte, rangeType uint8, off
}
func (db *DB) Begin() (*Tx, error) {
tx, err := db.IDB.Begin()
tx, err := db.db.Begin()
if err != nil {
return nil, err
}
@ -120,3 +135,24 @@ func (db *DB) Begin() (*Tx, error) {
func (db *DB) Stat() *Stat {
return db.st
}
func (db *DB) needSyncCommit() bool {
if db.cfg.DBSyncCommit == 0 {
return false
} else if db.cfg.DBSyncCommit == 2 {
return true
} else {
n := time.Now()
need := false
db.m.Lock()
if n.Sub(db.lastCommit) > time.Second {
need = true
}
db.lastCommit = n
db.m.Unlock()
return need
}
}

22
store/stat.go
View File

@ -9,8 +9,6 @@ type Stat struct {
GetMissingNum sync2.AtomicInt64
PutNum sync2.AtomicInt64
DeleteNum sync2.AtomicInt64
SyncPutNum sync2.AtomicInt64
SyncDeleteNum sync2.AtomicInt64
IterNum sync2.AtomicInt64
IterSeekNum sync2.AtomicInt64
IterCloseNum sync2.AtomicInt64
@ -18,7 +16,6 @@ type Stat struct {
SnapshotCloseNum sync2.AtomicInt64
BatchNum sync2.AtomicInt64
BatchCommitNum sync2.AtomicInt64
BatchSyncCommitNum sync2.AtomicInt64
TxNum sync2.AtomicInt64
TxCommitNum sync2.AtomicInt64
TxCloseNum sync2.AtomicInt64
@ -35,23 +32,4 @@ func (st *Stat) statGet(v []byte, err error) {
func (st *Stat) Reset() {
*st = Stat{}
// st.GetNum.Set(0)
// st.GetMissingNum.Set(0)
// st.PutNum.Set(0)
// st.DeleteNum.Set(0)
// st.SyncPutNum.Set(0)
// st.SyncDeleteNum.Set(0)
// st.IterNum.Set(0)
// st.IterSeekNum.Set(0)
// st.IterCloseNum.Set(0)
// st.SnapshotNum.Set(0)
// st.SnapshotCloseNum.Set(0)
// st.BatchNum.Set(0)
// st.BatchCommitNum.Set(0)
// st.BatchSyncCommitNum.Set(0)
// st.TxNum.Set(0)
// st.TxCommitNum.Set(0)
// st.TxCloseNum.Set(0)
// st.CompactNum.Set(0)
// st.CompactTotalTime.Set(0)
}

6
store/store.go
View File

@ -40,7 +40,11 @@ func Open(cfg *config.Config) (*DB, error) {
return nil, err
}
db := &DB{idb, s.String(), &Stat{}}
db := new(DB)
db.db = idb
db.name = s.String()
db.st = &Stat{}
db.cfg = cfg
return db, nil
}

16
store/tx.go
View File

@ -5,13 +5,13 @@ import (
)
type Tx struct {
driver.Tx
tx driver.Tx
st *Stat
}
func (tx *Tx) NewIterator() *Iterator {
it := new(Iterator)
it.it = tx.Tx.NewIterator()
it.it = tx.tx.NewIterator()
it.st = tx.st
tx.st.IterNum.Add(1)
@ -23,7 +23,7 @@ func (tx *Tx) NewWriteBatch() *WriteBatch {
tx.st.BatchNum.Add(1)
wb := new(WriteBatch)
wb.IWriteBatch = tx.Tx.NewWriteBatch()
wb.wb = tx.tx.NewWriteBatch()
wb.st = tx.st
return wb
}
@ -51,26 +51,26 @@ func (tx *Tx) RevRangeLimitIterator(min []byte, max []byte, rangeType uint8, off
}
func (tx *Tx) Get(key []byte) ([]byte, error) {
v, err := tx.Tx.Get(key)
v, err := tx.tx.Get(key)
tx.st.statGet(v, err)
return v, err
}
func (tx *Tx) Put(key []byte, value []byte) error {
tx.st.PutNum.Add(1)
return tx.Tx.Put(key, value)
return tx.tx.Put(key, value)
}
func (tx *Tx) Delete(key []byte) error {
tx.st.DeleteNum.Add(1)
return tx.Tx.Delete(key)
return tx.tx.Delete(key)
}
func (tx *Tx) Commit() error {
tx.st.TxCommitNum.Add(1)
return tx.Tx.Commit()
return tx.tx.Commit()
}
func (tx *Tx) Rollback() error {
return tx.Tx.Rollback()
return tx.tx.Rollback()
}

23
store/writebatch.go
View File

@ -5,20 +5,22 @@ import (
)
type WriteBatch struct {
driver.IWriteBatch
wb driver.IWriteBatch
st *Stat
putNum int64
deleteNum int64
db *DB
}
func (wb *WriteBatch) Put(key []byte, value []byte) {
wb.putNum++
wb.IWriteBatch.Put(key, value)
wb.wb.Put(key, value)
}
func (wb *WriteBatch) Delete(key []byte) {
wb.deleteNum++
wb.IWriteBatch.Delete(key)
wb.wb.Delete(key)
}
func (wb *WriteBatch) Commit() error {
@ -27,18 +29,13 @@ func (wb *WriteBatch) Commit() error {
wb.st.DeleteNum.Add(wb.deleteNum)
wb.putNum = 0
wb.deleteNum = 0
return wb.IWriteBatch.Commit()
if wb.db == nil || !wb.db.needSyncCommit() {
return wb.wb.Commit()
} else {
return wb.wb.SyncCommit()
}
func (wb *WriteBatch) SyncCommit() error {
wb.st.BatchSyncCommitNum.Add(1)
wb.st.SyncPutNum.Add(wb.putNum)
wb.st.SyncDeleteNum.Add(wb.deleteNum)
wb.putNum = 0
wb.deleteNum = 0
return wb.IWriteBatch.SyncCommit()
}
func (wb *WriteBatch) Rollback() error {
return wb.IWriteBatch.Rollback()
return wb.wb.Rollback()
}