mirror of https://github.com/facebook/rocksdb.git
327 lines
12 KiB
C++
327 lines
12 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#include "db/blob/blob_counting_iterator.h"
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#include <string>
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#include <vector>
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#include "db/blob/blob_garbage_meter.h"
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#include "db/blob/blob_index.h"
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#include "db/blob/blob_log_format.h"
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#include "db/dbformat.h"
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#include "test_util/testharness.h"
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#include "test_util/testutil.h"
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#include "util/vector_iterator.h"
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namespace ROCKSDB_NAMESPACE {
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void CheckInFlow(const BlobGarbageMeter& blob_garbage_meter,
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uint64_t blob_file_number, uint64_t count, uint64_t bytes) {
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const auto& flows = blob_garbage_meter.flows();
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const auto it = flows.find(blob_file_number);
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if (it == flows.end()) {
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ASSERT_EQ(count, 0);
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ASSERT_EQ(bytes, 0);
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return;
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}
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const auto& in = it->second.GetInFlow();
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ASSERT_EQ(in.GetCount(), count);
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ASSERT_EQ(in.GetBytes(), bytes);
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}
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TEST(BlobCountingIteratorTest, CountBlobs) {
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// Note: the input consists of three key-values: two are blob references to
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// different blob files, while the third one is a plain value.
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constexpr char user_key0[] = "key0";
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constexpr char user_key1[] = "key1";
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constexpr char user_key2[] = "key2";
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const std::vector<std::string> keys{
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test::KeyStr(user_key0, 1, kTypeBlobIndex),
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test::KeyStr(user_key1, 2, kTypeBlobIndex),
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test::KeyStr(user_key2, 3, kTypeValue)};
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constexpr uint64_t first_blob_file_number = 4;
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constexpr uint64_t first_offset = 1000;
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constexpr uint64_t first_size = 2000;
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std::string first_blob_index;
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BlobIndex::EncodeBlob(&first_blob_index, first_blob_file_number, first_offset,
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first_size, kNoCompression);
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constexpr uint64_t second_blob_file_number = 6;
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constexpr uint64_t second_offset = 2000;
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constexpr uint64_t second_size = 4000;
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std::string second_blob_index;
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BlobIndex::EncodeBlob(&second_blob_index, second_blob_file_number,
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second_offset, second_size, kNoCompression);
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const std::vector<std::string> values{first_blob_index, second_blob_index,
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"raw_value"};
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assert(keys.size() == values.size());
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VectorIterator input(keys, values);
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BlobGarbageMeter blob_garbage_meter;
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BlobCountingIterator blob_counter(&input, &blob_garbage_meter);
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constexpr uint64_t first_expected_bytes =
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first_size +
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BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(user_key0) - 1);
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constexpr uint64_t second_expected_bytes =
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second_size +
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BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(user_key1) - 1);
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// Call SeekToFirst and iterate forward
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blob_counter.SeekToFirst();
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[0]);
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ASSERT_EQ(blob_counter.user_key(), user_key0);
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ASSERT_EQ(blob_counter.value(), values[0]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 1,
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first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 0, 0);
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blob_counter.Next();
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[1]);
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ASSERT_EQ(blob_counter.user_key(), user_key1);
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ASSERT_EQ(blob_counter.value(), values[1]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 1,
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first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 1,
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second_expected_bytes);
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blob_counter.Next();
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[2]);
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ASSERT_EQ(blob_counter.user_key(), user_key2);
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ASSERT_EQ(blob_counter.value(), values[2]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 1,
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first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 1,
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second_expected_bytes);
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blob_counter.Next();
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ASSERT_FALSE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 1,
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first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 1,
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second_expected_bytes);
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// Do it again using NextAndGetResult
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blob_counter.SeekToFirst();
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[0]);
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ASSERT_EQ(blob_counter.user_key(), user_key0);
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ASSERT_EQ(blob_counter.value(), values[0]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 2,
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2 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 1,
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second_expected_bytes);
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{
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IterateResult result;
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ASSERT_TRUE(blob_counter.NextAndGetResult(&result));
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ASSERT_EQ(result.key, keys[1]);
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ASSERT_EQ(blob_counter.user_key(), user_key1);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[1]);
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ASSERT_EQ(blob_counter.value(), values[1]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 2,
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2 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 2,
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2 * second_expected_bytes);
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}
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{
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IterateResult result;
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ASSERT_TRUE(blob_counter.NextAndGetResult(&result));
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ASSERT_EQ(result.key, keys[2]);
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ASSERT_EQ(blob_counter.user_key(), user_key2);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[2]);
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ASSERT_EQ(blob_counter.value(), values[2]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 2,
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2 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 2,
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2 * second_expected_bytes);
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}
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{
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IterateResult result;
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ASSERT_FALSE(blob_counter.NextAndGetResult(&result));
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ASSERT_FALSE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 2,
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2 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 2,
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2 * second_expected_bytes);
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}
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// Call SeekToLast and iterate backward
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blob_counter.SeekToLast();
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[2]);
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ASSERT_EQ(blob_counter.user_key(), user_key2);
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ASSERT_EQ(blob_counter.value(), values[2]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 2,
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2 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 2,
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2 * second_expected_bytes);
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blob_counter.Prev();
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[1]);
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ASSERT_EQ(blob_counter.user_key(), user_key1);
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ASSERT_EQ(blob_counter.value(), values[1]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 2,
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2 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 3,
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3 * second_expected_bytes);
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blob_counter.Prev();
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[0]);
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ASSERT_EQ(blob_counter.user_key(), user_key0);
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ASSERT_EQ(blob_counter.value(), values[0]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 3,
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3 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 3,
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3 * second_expected_bytes);
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blob_counter.Prev();
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ASSERT_FALSE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 3,
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3 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 3,
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3 * second_expected_bytes);
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// Call Seek for all keys (plus one that's greater than all of them)
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blob_counter.Seek(keys[0]);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[0]);
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ASSERT_EQ(blob_counter.user_key(), user_key0);
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ASSERT_EQ(blob_counter.value(), values[0]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 4,
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4 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 3,
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3 * second_expected_bytes);
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blob_counter.Seek(keys[1]);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[1]);
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ASSERT_EQ(blob_counter.user_key(), user_key1);
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ASSERT_EQ(blob_counter.value(), values[1]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 4,
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4 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 4,
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4 * second_expected_bytes);
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blob_counter.Seek(keys[2]);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[2]);
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ASSERT_EQ(blob_counter.user_key(), user_key2);
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ASSERT_EQ(blob_counter.value(), values[2]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 4,
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4 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 4,
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4 * second_expected_bytes);
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blob_counter.Seek("zzz");
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ASSERT_FALSE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 4,
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4 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 4,
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4 * second_expected_bytes);
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// Call SeekForPrev for all keys (plus one that's less than all of them)
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blob_counter.SeekForPrev("aaa");
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ASSERT_FALSE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 4,
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4 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 4,
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4 * second_expected_bytes);
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blob_counter.SeekForPrev(keys[0]);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[0]);
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ASSERT_EQ(blob_counter.user_key(), user_key0);
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ASSERT_EQ(blob_counter.value(), values[0]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 5,
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5 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 4,
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4 * second_expected_bytes);
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blob_counter.SeekForPrev(keys[1]);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[1]);
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ASSERT_EQ(blob_counter.user_key(), user_key1);
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ASSERT_EQ(blob_counter.value(), values[1]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 5,
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5 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 5,
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5 * second_expected_bytes);
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blob_counter.SeekForPrev(keys[2]);
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ASSERT_TRUE(blob_counter.Valid());
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ASSERT_OK(blob_counter.status());
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ASSERT_EQ(blob_counter.key(), keys[2]);
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ASSERT_EQ(blob_counter.user_key(), user_key2);
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ASSERT_EQ(blob_counter.value(), values[2]);
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CheckInFlow(blob_garbage_meter, first_blob_file_number, 5,
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5 * first_expected_bytes);
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CheckInFlow(blob_garbage_meter, second_blob_file_number, 5,
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5 * second_expected_bytes);
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}
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TEST(BlobCountingIteratorTest, CorruptBlobIndex) {
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const std::vector<std::string> keys{
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test::KeyStr("user_key", 1, kTypeBlobIndex)};
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const std::vector<std::string> values{"i_am_not_a_blob_index"};
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assert(keys.size() == values.size());
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VectorIterator input(keys, values);
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BlobGarbageMeter blob_garbage_meter;
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BlobCountingIterator blob_counter(&input, &blob_garbage_meter);
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blob_counter.SeekToFirst();
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ASSERT_FALSE(blob_counter.Valid());
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ASSERT_NOK(blob_counter.status());
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}
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} // namespace ROCKSDB_NAMESPACE
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int main(int argc, char** argv) {
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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