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How to use compact method of db Package
Best Syzkaller code snippet using db.compact
corrupt_test.go
Source:corrupt_test.go 
...216func TestCorruptDB_Table(t *testing.T) {217 h := newDbCorruptHarness(t)218 defer h.close()219 h.build(100)220 h.compactMem()221 h.compactRangeAt(0, "", "")222 h.compactRangeAt(1, "", "")223 h.closeDB()224 h.corrupt(storage.TypeTable, -1, 100, 1)225 h.openDB()226 h.check(99, 99)227}228func TestCorruptDB_TableIndex(t *testing.T) {229 h := newDbCorruptHarness(t)230 defer h.close()231 h.build(10000)232 h.compactMem()233 h.closeDB()234 h.corrupt(storage.TypeTable, -1, -2000, 500)235 h.openDB()236 h.check(5000, 9999)237}238func TestCorruptDB_MissingManifest(t *testing.T) {239 rnd := rand.New(rand.NewSource(0x0badda7a))240 h := newDbCorruptHarnessWopt(t, &opt.Options{241 BlockCacheCapacity: 100,242 Strict: opt.StrictJournalChecksum,243 WriteBuffer: 1000 * 60,244 })245 defer h.close()246 h.build(1000)247 h.compactMem()248 h.buildShuffled(1000, rnd)249 h.compactMem()250 h.deleteRand(500, 1000, rnd)251 h.compactMem()252 h.buildShuffled(1000, rnd)253 h.compactMem()254 h.deleteRand(500, 1000, rnd)255 h.compactMem()256 h.buildShuffled(1000, rnd)257 h.compactMem()258 h.closeDB()259 h.forceRemoveAll(storage.TypeManifest)260 h.openAssert(false)261 h.recover()262 h.check(1000, 1000)263 h.build(1000)264 h.compactMem()265 h.compactRange("", "")266 h.closeDB()267 h.recover()268 h.check(1000, 1000)269}270func TestCorruptDB_SequenceNumberRecovery(t *testing.T) {271 h := newDbCorruptHarness(t)272 defer h.close()273 h.put("foo", "v1")274 h.put("foo", "v2")275 h.put("foo", "v3")276 h.put("foo", "v4")277 h.put("foo", "v5")278 h.closeDB()279 h.recover()280 h.getVal("foo", "v5")281 h.put("foo", "v6")282 h.getVal("foo", "v6")283 h.reopenDB()284 h.getVal("foo", "v6")285}286func TestCorruptDB_SequenceNumberRecoveryTable(t *testing.T) {287 h := newDbCorruptHarness(t)288 defer h.close()289 h.put("foo", "v1")290 h.put("foo", "v2")291 h.put("foo", "v3")292 h.compactMem()293 h.put("foo", "v4")294 h.put("foo", "v5")295 h.compactMem()296 h.closeDB()297 h.recover()298 h.getVal("foo", "v5")299 h.put("foo", "v6")300 h.getVal("foo", "v6")301 h.reopenDB()302 h.getVal("foo", "v6")303}304func TestCorruptDB_CorruptedManifest(t *testing.T) {305 h := newDbCorruptHarness(t)306 defer h.close()307 h.put("foo", "hello")308 h.compactMem()309 h.compactRange("", "")310 h.closeDB()311 h.corrupt(storage.TypeManifest, -1, 0, 1000)312 h.openAssert(false)313 h.recover()314 h.getVal("foo", "hello")315}316func TestCorruptDB_CompactionInputError(t *testing.T) {317 h := newDbCorruptHarness(t)318 defer h.close()319 h.build(10)320 h.compactMem()321 h.closeDB()322 h.corrupt(storage.TypeTable, -1, 100, 1)323 h.openDB()324 h.check(9, 9)325 h.build(10000)326 h.check(10000, 10000)327}328func TestCorruptDB_UnrelatedKeys(t *testing.T) {329 h := newDbCorruptHarness(t)330 defer h.close()331 h.build(10)332 h.compactMem()333 h.closeDB()334 h.corrupt(storage.TypeTable, -1, 100, 1)335 h.openDB()336 h.put(string(tkey(1000)), string(tval(1000, ctValSize)))337 h.getVal(string(tkey(1000)), string(tval(1000, ctValSize)))338 h.compactMem()339 h.getVal(string(tkey(1000)), string(tval(1000, ctValSize)))340}341func TestCorruptDB_Level0NewerFileHasOlderSeqnum(t *testing.T) {342 h := newDbCorruptHarness(t)343 defer h.close()344 h.put("a", "v1")345 h.put("b", "v1")346 h.compactMem()347 h.put("a", "v2")348 h.put("b", "v2")349 h.compactMem()350 h.put("a", "v3")351 h.put("b", "v3")352 h.compactMem()353 h.put("c", "v0")354 h.put("d", "v0")355 h.compactMem()356 h.compactRangeAt(1, "", "")357 h.closeDB()358 h.recover()359 h.getVal("a", "v3")360 h.getVal("b", "v3")361 h.getVal("c", "v0")362 h.getVal("d", "v0")363}364func TestCorruptDB_RecoverInvalidSeq_Issue53(t *testing.T) {365 h := newDbCorruptHarness(t)366 defer h.close()367 h.put("a", "v1")368 h.put("b", "v1")369 h.compactMem()370 h.put("a", "v2")371 h.put("b", "v2")372 h.compactMem()373 h.put("a", "v3")374 h.put("b", "v3")375 h.compactMem()376 h.put("c", "v0")377 h.put("d", "v0")378 h.compactMem()379 h.compactRangeAt(0, "", "")380 h.closeDB()381 h.recover()382 h.getVal("a", "v3")383 h.getVal("b", "v3")384 h.getVal("c", "v0")385 h.getVal("d", "v0")386}387func TestCorruptDB_MissingTableFiles(t *testing.T) {388 h := newDbCorruptHarness(t)389 defer h.close()390 h.put("a", "v1")391 h.put("b", "v1")392 h.compactMem()393 h.put("c", "v2")394 h.put("d", "v2")395 h.compactMem()396 h.put("e", "v3")397 h.put("f", "v3")398 h.closeDB()399 h.removeOne(storage.TypeTable)400 h.openAssert(false)401}402func TestCorruptDB_RecoverTable(t *testing.T) {403 h := newDbCorruptHarnessWopt(t, &opt.Options{404 WriteBuffer: 112 * opt.KiB,405 CompactionTableSize: 90 * opt.KiB,406 Filter: filter.NewBloomFilter(10),407 })408 defer h.close()409 h.build(1000)410 h.compactMem()411 h.compactRangeAt(0, "", "")412 h.compactRangeAt(1, "", "")413 seq := h.db.seq414 h.closeDB()415 h.corrupt(storage.TypeTable, 0, 1000, 1)416 h.corrupt(storage.TypeTable, 3, 10000, 1)417 // Corrupted filter shouldn't affect recovery.418 h.corrupt(storage.TypeTable, 3, 113888, 10)419 h.corrupt(storage.TypeTable, -1, 20000, 1)420 h.recover()421 if h.db.seq != seq {422 t.Errorf("invalid seq, want=%d got=%d", seq, h.db.seq)423 }424 h.check(985, 985)425}...
compact
Using AI Code Generation
1import (2func main() {3 db, err := leveldb.OpenFile("testdb", nil)4 if err != nil {5 fmt.Println(err)6 }7 defer db.Close()8 db.CompactRange(opt.Range{nil, nil})9}
compact
Using AI Code Generation
1import (2func main() {3 db, err := sql.Open("sqlite3", "./foo.db")4 if err != nil {5 log.Fatal(err)6 }7 defer db.Close()8 _, err = db.Exec("VACUUM")9 if err != nil {10 log.Fatal(err)11 }12 fmt.Println("Database compacted")13}
compact
Using AI Code Generation
1import (2func main() {3 db, err := bolt.Open("my.db", 0600, &bolt.Options{Timeout: 1 * time.Second})4 if err != nil {5 log.Fatal(err)6 }7 defer db.Close()8 err = db.Update(func(tx *bolt.Tx) error {9 _, err := tx.CreateBucketIfNotExists([]byte("MyBucket"))10 if err != nil {11 return fmt.Errorf("create bucket: %s", err)12 }13 })14 if err != nil {15 log.Fatal(err)16 }17 f, err := os.OpenFile("my.db", os.O_RDWR, 0666)18 if err != nil {19 log.Fatal(err)20 }21 defer f.Close()22 if err := f.Truncate(10); err != nil {23 log.Fatal(err)24 }25 if err := f.Close(); err != nil {26 log.Fatal(err)27 }28 db, err = bolt.Open("my.db", 0600, &bolt.Options{Timeout: 1 * time.Second})29 if err != nil {30 log.Fatal(err)31 }32 defer db.Close()33}34import (35func main() {36 db, err := bolt.Open("my.db", 0600, &bolt.Options{Timeout: 1 * time.Second})37 if err != nil {38 log.Fatal(err)39 }40 defer db.Close()
compact
Using AI Code Generation
1import (2func main() {3 db, err := leveldb.OpenFile("db", &opt.Options{ErrorIfMissing: true})4 if err != nil {5 fmt.Println(err)6 }7 defer db.Close()8 err = db.CompactRange(nil, nil)9 if err != nil {10 fmt.Println(err)11 }12}
compact
Using AI Code Generation
1import (2func main() {3 db, err := leveldb.OpenFile("db", nil)4 if err != nil {5 fmt.Println(err)6 os.Exit(1)7 }8 defer db.Close()9 for i := 0; i < 1000; i++ {10 key := []byte("key" + strconv.Itoa(i))11 value := []byte("value" + strconv.Itoa(i))12 err = db.Put(key, value, nil)13 if err != nil {14 fmt.Println(err)15 os.Exit(1)16 }17 }18 start := time.Now()19 db.CompactRange(nil, nil)20 fmt.Println("Compact time:", time.Since(start))21 for i := 0; i < 1000; i++ {22 key := []byte("key" + strconv.Itoa(i))23 value := []byte("value" + strconv.Itoa(i))24 err = db.Put(key, value, nil)25 if err != nil {26 fmt.Println(err)27 os.Exit(1)28 }29 }30 start = time.Now()31 db.CompactRange(nil, nil)32 fmt.Println("Compact time:", time.Since(start))33}
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