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}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.