fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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608 lines
21 KiB
608 lines
21 KiB
// 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_index.h"
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#include "db/blob/blob_log_format.h"
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#include "db/db_test_util.h"
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#include "port/stack_trace.h"
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#include "test_util/sync_point.h"
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namespace ROCKSDB_NAMESPACE {
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class DBBlobCompactionTest : public DBTestBase {
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public:
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explicit DBBlobCompactionTest()
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: DBTestBase("db_blob_compaction_test", /*env_do_fsync=*/false) {}
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#ifndef ROCKSDB_LITE
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const std::vector<InternalStats::CompactionStats>& GetCompactionStats() {
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VersionSet* const versions = dbfull()->TEST_GetVersionSet();
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assert(versions);
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assert(versions->GetColumnFamilySet());
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ColumnFamilyData* const cfd = versions->GetColumnFamilySet()->GetDefault();
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assert(cfd);
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const InternalStats* const internal_stats = cfd->internal_stats();
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assert(internal_stats);
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return internal_stats->TEST_GetCompactionStats();
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}
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#endif // ROCKSDB_LITE
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};
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namespace {
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class FilterByKeyLength : public CompactionFilter {
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public:
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explicit FilterByKeyLength(size_t len) : length_threshold_(len) {}
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const char* Name() const override {
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return "rocksdb.compaction.filter.by.key.length";
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}
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CompactionFilter::Decision FilterBlobByKey(
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int /*level*/, const Slice& key, std::string* /*new_value*/,
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std::string* /*skip_until*/) const override {
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if (key.size() < length_threshold_) {
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return CompactionFilter::Decision::kRemove;
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}
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return CompactionFilter::Decision::kKeep;
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}
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private:
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size_t length_threshold_;
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};
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class BadBlobCompactionFilter : public CompactionFilter {
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public:
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explicit BadBlobCompactionFilter(std::string prefix,
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CompactionFilter::Decision filter_by_key,
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CompactionFilter::Decision filter_v2)
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: prefix_(std::move(prefix)),
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filter_blob_by_key_(filter_by_key),
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filter_v2_(filter_v2) {}
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const char* Name() const override { return "rocksdb.compaction.filter.bad"; }
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CompactionFilter::Decision FilterBlobByKey(
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int /*level*/, const Slice& key, std::string* /*new_value*/,
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std::string* /*skip_until*/) const override {
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if (key.size() >= prefix_.size() &&
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0 == strncmp(prefix_.data(), key.data(), prefix_.size())) {
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return CompactionFilter::Decision::kUndetermined;
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}
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return filter_blob_by_key_;
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}
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CompactionFilter::Decision FilterV2(
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int /*level*/, const Slice& /*key*/, ValueType /*value_type*/,
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const Slice& /*existing_value*/, std::string* /*new_value*/,
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std::string* /*skip_until*/) const override {
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return filter_v2_;
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}
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private:
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const std::string prefix_;
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const CompactionFilter::Decision filter_blob_by_key_;
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const CompactionFilter::Decision filter_v2_;
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};
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class ValueBlindWriteFilter : public CompactionFilter {
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public:
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explicit ValueBlindWriteFilter(std::string new_val)
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: new_value_(std::move(new_val)) {}
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const char* Name() const override {
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return "rocksdb.compaction.filter.blind.write";
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}
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CompactionFilter::Decision FilterBlobByKey(
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int level, const Slice& key, std::string* new_value,
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std::string* skip_until) const override;
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private:
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const std::string new_value_;
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};
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CompactionFilter::Decision ValueBlindWriteFilter::FilterBlobByKey(
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int /*level*/, const Slice& /*key*/, std::string* new_value,
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std::string* /*skip_until*/) const {
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assert(new_value);
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new_value->assign(new_value_);
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return CompactionFilter::Decision::kChangeValue;
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}
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class ValueMutationFilter : public CompactionFilter {
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public:
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explicit ValueMutationFilter(std::string padding)
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: padding_(std::move(padding)) {}
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const char* Name() const override {
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return "rocksdb.compaction.filter.value.mutation";
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}
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CompactionFilter::Decision FilterV2(int level, const Slice& key,
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ValueType value_type,
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const Slice& existing_value,
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std::string* new_value,
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std::string* skip_until) const override;
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private:
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const std::string padding_;
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};
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CompactionFilter::Decision ValueMutationFilter::FilterV2(
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int /*level*/, const Slice& /*key*/, ValueType value_type,
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const Slice& existing_value, std::string* new_value,
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std::string* /*skip_until*/) const {
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assert(CompactionFilter::ValueType::kBlobIndex != value_type);
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if (CompactionFilter::ValueType::kValue != value_type) {
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return CompactionFilter::Decision::kKeep;
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}
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assert(new_value);
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new_value->assign(existing_value.data(), existing_value.size());
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new_value->append(padding_);
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return CompactionFilter::Decision::kChangeValue;
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}
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class AlwaysKeepFilter : public CompactionFilter {
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public:
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explicit AlwaysKeepFilter() = default;
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const char* Name() const override {
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return "rocksdb.compaction.filter.always.keep";
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}
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CompactionFilter::Decision FilterV2(
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int /*level*/, const Slice& /*key*/, ValueType /*value_type*/,
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const Slice& /*existing_value*/, std::string* /*new_value*/,
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std::string* /*skip_until*/) const override {
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return CompactionFilter::Decision::kKeep;
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}
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};
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class SkipUntilFilter : public CompactionFilter {
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public:
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explicit SkipUntilFilter(std::string skip_until)
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: skip_until_(std::move(skip_until)) {}
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const char* Name() const override {
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return "rocksdb.compaction.filter.skip.until";
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}
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CompactionFilter::Decision FilterV2(int /* level */, const Slice& /* key */,
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ValueType /* value_type */,
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const Slice& /* existing_value */,
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std::string* /* new_value */,
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std::string* skip_until) const override {
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assert(skip_until);
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*skip_until = skip_until_;
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return CompactionFilter::Decision::kRemoveAndSkipUntil;
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}
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private:
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std::string skip_until_;
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};
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} // anonymous namespace
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class DBBlobBadCompactionFilterTest
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: public DBBlobCompactionTest,
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public testing::WithParamInterface<
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std::tuple<std::string, CompactionFilter::Decision,
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CompactionFilter::Decision>> {
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public:
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explicit DBBlobBadCompactionFilterTest()
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: compaction_filter_guard_(new BadBlobCompactionFilter(
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std::get<0>(GetParam()), std::get<1>(GetParam()),
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std::get<2>(GetParam()))) {}
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protected:
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std::unique_ptr<CompactionFilter> compaction_filter_guard_;
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};
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INSTANTIATE_TEST_CASE_P(
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BadCompactionFilter, DBBlobBadCompactionFilterTest,
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testing::Combine(
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testing::Values("a"),
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testing::Values(CompactionFilter::Decision::kChangeBlobIndex,
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CompactionFilter::Decision::kIOError),
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testing::Values(CompactionFilter::Decision::kUndetermined,
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CompactionFilter::Decision::kChangeBlobIndex,
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CompactionFilter::Decision::kIOError)));
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TEST_F(DBBlobCompactionTest, FilterByKeyLength) {
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Options options = GetDefaultOptions();
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options.enable_blob_files = true;
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options.min_blob_size = 0;
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options.create_if_missing = true;
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constexpr size_t kKeyLength = 2;
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std::unique_ptr<CompactionFilter> compaction_filter_guard(
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new FilterByKeyLength(kKeyLength));
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options.compaction_filter = compaction_filter_guard.get();
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constexpr char short_key[] = "a";
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constexpr char long_key[] = "abc";
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constexpr char blob_value[] = "value";
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DestroyAndReopen(options);
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ASSERT_OK(Put(short_key, blob_value));
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ASSERT_OK(Put(long_key, blob_value));
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ASSERT_OK(Flush());
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CompactRangeOptions cro;
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ASSERT_OK(db_->CompactRange(cro, /*begin=*/nullptr, /*end=*/nullptr));
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std::string value;
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ASSERT_TRUE(db_->Get(ReadOptions(), short_key, &value).IsNotFound());
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value.clear();
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ASSERT_OK(db_->Get(ReadOptions(), long_key, &value));
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ASSERT_EQ("value", value);
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#ifndef ROCKSDB_LITE
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const auto& compaction_stats = GetCompactionStats();
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ASSERT_GE(compaction_stats.size(), 2);
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// Filter decides between kKeep and kRemove solely based on key;
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// this involves neither reading nor writing blobs
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ASSERT_EQ(compaction_stats[1].bytes_read_blob, 0);
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ASSERT_EQ(compaction_stats[1].bytes_written_blob, 0);
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#endif // ROCKSDB_LITE
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Close();
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}
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TEST_F(DBBlobCompactionTest, BlindWriteFilter) {
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Options options = GetDefaultOptions();
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options.enable_blob_files = true;
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options.min_blob_size = 0;
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options.create_if_missing = true;
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constexpr char new_blob_value[] = "new_blob_value";
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std::unique_ptr<CompactionFilter> compaction_filter_guard(
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new ValueBlindWriteFilter(new_blob_value));
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options.compaction_filter = compaction_filter_guard.get();
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DestroyAndReopen(options);
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const std::vector<std::string> keys = {"a", "b", "c"};
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const std::vector<std::string> values = {"a_value", "b_value", "c_value"};
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assert(keys.size() == values.size());
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for (size_t i = 0; i < keys.size(); ++i) {
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ASSERT_OK(Put(keys[i], values[i]));
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}
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ASSERT_OK(Flush());
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ASSERT_OK(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
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/*end=*/nullptr));
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for (const auto& key : keys) {
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ASSERT_EQ(new_blob_value, Get(key));
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}
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#ifndef ROCKSDB_LITE
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const auto& compaction_stats = GetCompactionStats();
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ASSERT_GE(compaction_stats.size(), 2);
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// Filter unconditionally changes value in FilterBlobByKey;
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// this involves writing but not reading blobs
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ASSERT_EQ(compaction_stats[1].bytes_read_blob, 0);
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ASSERT_GT(compaction_stats[1].bytes_written_blob, 0);
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#endif // ROCKSDB_LITE
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Close();
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}
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TEST_F(DBBlobCompactionTest, SkipUntilFilter) {
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Options options = GetDefaultOptions();
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options.enable_blob_files = true;
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std::unique_ptr<CompactionFilter> compaction_filter_guard(
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new SkipUntilFilter("z"));
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options.compaction_filter = compaction_filter_guard.get();
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Reopen(options);
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const std::vector<std::string> keys{"a", "b", "c"};
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const std::vector<std::string> values{"a_value", "b_value", "c_value"};
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assert(keys.size() == values.size());
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for (size_t i = 0; i < keys.size(); ++i) {
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ASSERT_OK(Put(keys[i], values[i]));
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}
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ASSERT_OK(Flush());
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int process_in_flow_called = 0;
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SyncPoint::GetInstance()->SetCallBack(
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"BlobCountingIterator::UpdateAndCountBlobIfNeeded:ProcessInFlow",
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[&process_in_flow_called](void* /* arg */) { ++process_in_flow_called; });
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SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(db_->CompactRange(CompactRangeOptions(), /* begin */ nullptr,
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/* end */ nullptr));
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->ClearAllCallBacks();
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for (const auto& key : keys) {
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ASSERT_EQ(Get(key), "NOT_FOUND");
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}
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// Make sure SkipUntil was performed using iteration rather than Seek
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ASSERT_EQ(process_in_flow_called, keys.size());
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Close();
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}
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TEST_P(DBBlobBadCompactionFilterTest, BadDecisionFromCompactionFilter) {
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Options options = GetDefaultOptions();
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options.enable_blob_files = true;
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options.min_blob_size = 0;
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options.create_if_missing = true;
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options.compaction_filter = compaction_filter_guard_.get();
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DestroyAndReopen(options);
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ASSERT_OK(Put("b", "value"));
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ASSERT_OK(Flush());
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ASSERT_TRUE(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
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/*end=*/nullptr)
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.IsNotSupported());
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Close();
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DestroyAndReopen(options);
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std::string key(std::get<0>(GetParam()));
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ASSERT_OK(Put(key, "value"));
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ASSERT_OK(Flush());
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ASSERT_TRUE(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
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/*end=*/nullptr)
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.IsNotSupported());
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Close();
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}
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TEST_F(DBBlobCompactionTest, CompactionFilter_InlinedTTLIndex) {
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Options options = GetDefaultOptions();
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options.create_if_missing = true;
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options.enable_blob_files = true;
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options.min_blob_size = 0;
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std::unique_ptr<CompactionFilter> compaction_filter_guard(
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new ValueMutationFilter(""));
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options.compaction_filter = compaction_filter_guard.get();
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DestroyAndReopen(options);
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constexpr char key[] = "key";
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constexpr char blob[] = "blob";
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// Fake an inlined TTL blob index.
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std::string blob_index;
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constexpr uint64_t expiration = 1234567890;
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BlobIndex::EncodeInlinedTTL(&blob_index, expiration, blob);
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WriteBatch batch;
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ASSERT_OK(WriteBatchInternal::PutBlobIndex(&batch, 0, key, blob_index));
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ASSERT_OK(db_->Write(WriteOptions(), &batch));
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ASSERT_OK(Flush());
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ASSERT_TRUE(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
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/*end=*/nullptr)
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.IsCorruption());
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Close();
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}
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TEST_F(DBBlobCompactionTest, CompactionFilter) {
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Options options = GetDefaultOptions();
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options.create_if_missing = true;
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options.enable_blob_files = true;
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options.min_blob_size = 0;
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constexpr char padding[] = "_delta";
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std::unique_ptr<CompactionFilter> compaction_filter_guard(
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new ValueMutationFilter(padding));
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options.compaction_filter = compaction_filter_guard.get();
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DestroyAndReopen(options);
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const std::vector<std::pair<std::string, std::string>> kvs = {
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{"a", "a_value"}, {"b", "b_value"}, {"c", "c_value"}};
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for (const auto& kv : kvs) {
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ASSERT_OK(Put(kv.first, kv.second));
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}
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ASSERT_OK(Flush());
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ASSERT_OK(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
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/*end=*/nullptr));
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for (const auto& kv : kvs) {
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ASSERT_EQ(kv.second + std::string(padding), Get(kv.first));
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}
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#ifndef ROCKSDB_LITE
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const auto& compaction_stats = GetCompactionStats();
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ASSERT_GE(compaction_stats.size(), 2);
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// Filter changes the value using the previous value in FilterV2;
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// this involves reading and writing blobs
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ASSERT_GT(compaction_stats[1].bytes_read_blob, 0);
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ASSERT_GT(compaction_stats[1].bytes_written_blob, 0);
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#endif // ROCKSDB_LITE
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Close();
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}
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TEST_F(DBBlobCompactionTest, CorruptedBlobIndex) {
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Options options = GetDefaultOptions();
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options.create_if_missing = true;
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options.enable_blob_files = true;
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options.min_blob_size = 0;
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std::unique_ptr<CompactionFilter> compaction_filter_guard(
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new ValueMutationFilter(""));
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options.compaction_filter = compaction_filter_guard.get();
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DestroyAndReopen(options);
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// Mock a corrupted blob index
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constexpr char key[] = "key";
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std::string blob_idx("blob_idx");
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WriteBatch write_batch;
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ASSERT_OK(WriteBatchInternal::PutBlobIndex(&write_batch, 0, key, blob_idx));
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ASSERT_OK(db_->Write(WriteOptions(), &write_batch));
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ASSERT_OK(Flush());
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ASSERT_TRUE(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
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/*end=*/nullptr)
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.IsCorruption());
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Close();
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}
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TEST_F(DBBlobCompactionTest, CompactionFilterReadBlobAndKeep) {
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Options options = GetDefaultOptions();
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options.create_if_missing = true;
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options.enable_blob_files = true;
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options.min_blob_size = 0;
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std::unique_ptr<CompactionFilter> compaction_filter_guard(
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new AlwaysKeepFilter());
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options.compaction_filter = compaction_filter_guard.get();
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DestroyAndReopen(options);
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ASSERT_OK(Put("foo", "foo_value"));
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ASSERT_OK(Flush());
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std::vector<uint64_t> blob_files = GetBlobFileNumbers();
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ASSERT_EQ(1, blob_files.size());
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ASSERT_OK(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
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/*end=*/nullptr));
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ASSERT_EQ(blob_files, GetBlobFileNumbers());
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#ifndef ROCKSDB_LITE
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const auto& compaction_stats = GetCompactionStats();
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ASSERT_GE(compaction_stats.size(), 2);
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// Filter decides to keep the existing value in FilterV2;
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// this involves reading but not writing blobs
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ASSERT_GT(compaction_stats[1].bytes_read_blob, 0);
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ASSERT_EQ(compaction_stats[1].bytes_written_blob, 0);
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#endif // ROCKSDB_LITE
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Close();
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}
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TEST_F(DBBlobCompactionTest, TrackGarbage) {
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Options options = GetDefaultOptions();
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options.enable_blob_files = true;
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Reopen(options);
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// First table+blob file pair: 4 blobs with different keys
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constexpr char first_key[] = "first_key";
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constexpr char first_value[] = "first_value";
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constexpr char second_key[] = "second_key";
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constexpr char second_value[] = "second_value";
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constexpr char third_key[] = "third_key";
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constexpr char third_value[] = "third_value";
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constexpr char fourth_key[] = "fourth_key";
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constexpr char fourth_value[] = "fourth_value";
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ASSERT_OK(Put(first_key, first_value));
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ASSERT_OK(Put(second_key, second_value));
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ASSERT_OK(Put(third_key, third_value));
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|
ASSERT_OK(Put(fourth_key, fourth_value));
|
|
ASSERT_OK(Flush());
|
|
|
|
// Second table+blob file pair: overwrite 2 existing keys
|
|
constexpr char new_first_value[] = "new_first_value";
|
|
constexpr char new_second_value[] = "new_second_value";
|
|
|
|
ASSERT_OK(Put(first_key, new_first_value));
|
|
ASSERT_OK(Put(second_key, new_second_value));
|
|
ASSERT_OK(Flush());
|
|
|
|
// Compact them together. The first blob file should have 2 garbage blobs
|
|
// corresponding to the 2 overwritten keys.
|
|
constexpr Slice* begin = nullptr;
|
|
constexpr Slice* end = nullptr;
|
|
|
|
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), begin, end));
|
|
|
|
VersionSet* const versions = dbfull()->TEST_GetVersionSet();
|
|
assert(versions);
|
|
assert(versions->GetColumnFamilySet());
|
|
|
|
ColumnFamilyData* const cfd = versions->GetColumnFamilySet()->GetDefault();
|
|
assert(cfd);
|
|
|
|
Version* const current = cfd->current();
|
|
assert(current);
|
|
|
|
const VersionStorageInfo* const storage_info = current->storage_info();
|
|
assert(storage_info);
|
|
|
|
const auto& blob_files = storage_info->GetBlobFiles();
|
|
ASSERT_EQ(blob_files.size(), 2);
|
|
|
|
{
|
|
auto it = blob_files.begin();
|
|
const auto& meta = it->second;
|
|
assert(meta);
|
|
|
|
constexpr uint64_t first_expected_bytes =
|
|
sizeof(first_value) - 1 +
|
|
BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(first_key) -
|
|
1);
|
|
constexpr uint64_t second_expected_bytes =
|
|
sizeof(second_value) - 1 +
|
|
BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(second_key) -
|
|
1);
|
|
constexpr uint64_t third_expected_bytes =
|
|
sizeof(third_value) - 1 +
|
|
BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(third_key) -
|
|
1);
|
|
constexpr uint64_t fourth_expected_bytes =
|
|
sizeof(fourth_value) - 1 +
|
|
BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(fourth_key) -
|
|
1);
|
|
|
|
ASSERT_EQ(meta->GetTotalBlobCount(), 4);
|
|
ASSERT_EQ(meta->GetTotalBlobBytes(),
|
|
first_expected_bytes + second_expected_bytes +
|
|
third_expected_bytes + fourth_expected_bytes);
|
|
ASSERT_EQ(meta->GetGarbageBlobCount(), 2);
|
|
ASSERT_EQ(meta->GetGarbageBlobBytes(),
|
|
first_expected_bytes + second_expected_bytes);
|
|
}
|
|
|
|
{
|
|
auto it = blob_files.rbegin();
|
|
const auto& meta = it->second;
|
|
assert(meta);
|
|
|
|
constexpr uint64_t new_first_expected_bytes =
|
|
sizeof(new_first_value) - 1 +
|
|
BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(first_key) -
|
|
1);
|
|
constexpr uint64_t new_second_expected_bytes =
|
|
sizeof(new_second_value) - 1 +
|
|
BlobLogRecord::CalculateAdjustmentForRecordHeader(sizeof(second_key) -
|
|
1);
|
|
|
|
ASSERT_EQ(meta->GetTotalBlobCount(), 2);
|
|
ASSERT_EQ(meta->GetTotalBlobBytes(),
|
|
new_first_expected_bytes + new_second_expected_bytes);
|
|
ASSERT_EQ(meta->GetGarbageBlobCount(), 0);
|
|
ASSERT_EQ(meta->GetGarbageBlobBytes(), 0);
|
|
}
|
|
}
|
|
|
|
TEST_F(DBBlobCompactionTest, MergeBlobWithBase) {
|
|
Options options = GetDefaultOptions();
|
|
options.enable_blob_files = true;
|
|
options.min_blob_size = 0;
|
|
options.merge_operator = MergeOperators::CreateStringAppendOperator();
|
|
options.disable_auto_compactions = true;
|
|
|
|
Reopen(options);
|
|
ASSERT_OK(Put("Key1", "v1_1"));
|
|
ASSERT_OK(Put("Key2", "v2_1"));
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_OK(Merge("Key1", "v1_2"));
|
|
ASSERT_OK(Merge("Key2", "v2_2"));
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_OK(Merge("Key1", "v1_3"));
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), /*begin=*/nullptr,
|
|
/*end=*/nullptr));
|
|
ASSERT_EQ(Get("Key1"), "v1_1,v1_2,v1_3");
|
|
ASSERT_EQ(Get("Key2"), "v2_1,v2_2");
|
|
Close();
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
#ifdef ROCKSDB_UNITTESTS_WITH_CUSTOM_OBJECTS_FROM_STATIC_LIBS
|
|
extern "C" {
|
|
void RegisterCustomObjects(int argc, char** argv);
|
|
}
|
|
#else
|
|
void RegisterCustomObjects(int /*argc*/, char** /*argv*/) {}
|
|
#endif // !ROCKSDB_UNITTESTS_WITH_CUSTOM_OBJECTS_FROM_STATIC_LIBS
|
|
|
|
int main(int argc, char** argv) {
|
|
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
RegisterCustomObjects(argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|