Function TestDB_HintFileDifferentEntryIdxModes

db_test.go:2397–2467

(t *testing.T)

}

func TestDB_HintFileDifferentEntryIdxModes(t *testing.T) {
	bucket := "bucket"
	opts := DefaultOptions
	opts.SegmentSize = KB
	opts.Dir = filepath.Join(t.TempDir(), "test-hintfile-modes")
	opts.EnableHintFile = true

	// Clean the test directory at the start
	removeDir(opts.Dir)

	// Test HintKeyValAndRAMIdxMode
	opts.EntryIdxMode = HintKeyValAndRAMIdxMode

	db, err := Open(opts)
	require.NoError(t, err)
	txCreateBucket(t, db, DataStructureBTree, bucket, nil)

	// Add some data
	n := 100
	for i := 0; i < n; i++ {
		txPut(t, db, bucket, testutils.GetTestBytes(i), testutils.GetTestBytes(i), Persistent, nil, nil)
	}

	// Perform merge to create hint files
	require.NoError(t, db.Merge())

	// Close the database
	require.NoError(t, db.Close())

	// Reopen the database - it should use hint files for fast recovery
	db, err = Open(opts)
	require.NoError(t, err)

	// Verify all data is correctly recovered
	for i := 0; i < n; i++ {
		txGet(t, db, bucket, testutils.GetTestBytes(i), testutils.GetTestBytes(i), nil)
	}

	require.NoError(t, db.Close())
	removeDir(opts.Dir)

	// Test HintKeyAndRAMIdxMode
	opts.EntryIdxMode = HintKeyAndRAMIdxMode

	db, err = Open(opts)
	require.NoError(t, err)
	txCreateBucket(t, db, DataStructureBTree, bucket, nil)

	// Add some data
	for i := 0; i < n; i++ {
		txPut(t, db, bucket, testutils.GetTestBytes(i), testutils.GetTestBytes(i), Persistent, nil, nil)
	}

	// Perform merge to create hint files
	require.NoError(t, db.Merge())

	// Close the database
	require.NoError(t, db.Close())