http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/db/db_test_util.h ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/db/db_test_util.h b/thirdparty/rocksdb/db/db_test_util.h deleted file mode 100644 index cd1265e..0000000 --- a/thirdparty/rocksdb/db/db_test_util.h +++ /dev/null @@ -1,939 +0,0 @@ -// Copyright (c) 2011-present, Facebook, Inc. All rights reserved. -// This source code is licensed under both the GPLv2 (found in the -// COPYING file in the root directory) and Apache 2.0 License -// (found in the LICENSE.Apache file in the root directory). -// -// Copyright (c) 2011 The LevelDB Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. See the AUTHORS file for names of contributors. - -#pragma once -#ifndef __STDC_FORMAT_MACROS -#define __STDC_FORMAT_MACROS -#endif - -#include <fcntl.h> -#include <inttypes.h> - -#include <algorithm> -#include <map> -#include <set> -#include <string> -#include <thread> -#include <unordered_set> -#include <utility> -#include <vector> - -#include "db/db_impl.h" -#include "db/dbformat.h" -#include "env/mock_env.h" -#include "memtable/hash_linklist_rep.h" -#include "rocksdb/cache.h" -#include "rocksdb/compaction_filter.h" -#include "rocksdb/convenience.h" -#include "rocksdb/db.h" -#include "rocksdb/env.h" -#include "rocksdb/filter_policy.h" -#include "rocksdb/options.h" -#include "rocksdb/slice.h" -#include "rocksdb/sst_file_writer.h" -#include "rocksdb/statistics.h" -#include "rocksdb/table.h" -#include "rocksdb/utilities/checkpoint.h" -#include "table/block_based_table_factory.h" -#include "table/mock_table.h" -#include "table/plain_table_factory.h" -#include "table/scoped_arena_iterator.h" -#include "util/compression.h" -#include "util/filename.h" -#include "util/mutexlock.h" - -#include "util/string_util.h" -#include "util/sync_point.h" -#include "util/testharness.h" -#include "util/testutil.h" -#include "utilities/merge_operators.h" - -namespace rocksdb { - -namespace anon { -class AtomicCounter { - public: - explicit AtomicCounter(Env* env = NULL) - : env_(env), cond_count_(&mu_), count_(0) {} - - void Increment() { - MutexLock l(&mu_); - count_++; - cond_count_.SignalAll(); - } - - int Read() { - MutexLock l(&mu_); - return count_; - } - - bool WaitFor(int count) { - MutexLock l(&mu_); - - uint64_t start = env_->NowMicros(); - while (count_ < count) { - uint64_t now = env_->NowMicros(); - cond_count_.TimedWait(now + /*1s*/ 1 * 1000 * 1000); - if (env_->NowMicros() - start > /*10s*/ 10 * 1000 * 1000) { - return false; - } - if (count_ < count) { - GTEST_LOG_(WARNING) << "WaitFor is taking more time than usual"; - } - } - - return true; - } - - void Reset() { - MutexLock l(&mu_); - count_ = 0; - cond_count_.SignalAll(); - } - - private: - Env* env_; - port::Mutex mu_; - port::CondVar cond_count_; - int count_; -}; - -struct OptionsOverride { - std::shared_ptr<const FilterPolicy> filter_policy = nullptr; - // These will be used only if filter_policy is set - bool partition_filters = false; - uint64_t metadata_block_size = 1024; - BlockBasedTableOptions::IndexType index_type = - BlockBasedTableOptions::IndexType::kBinarySearch; - - // Used as a bit mask of individual enums in which to skip an XF test point - int skip_policy = 0; -}; - -} // namespace anon - -enum SkipPolicy { kSkipNone = 0, kSkipNoSnapshot = 1, kSkipNoPrefix = 2 }; - -// A hacky skip list mem table that triggers flush after number of entries. -class SpecialMemTableRep : public MemTableRep { - public: - explicit SpecialMemTableRep(Allocator* allocator, MemTableRep* memtable, - int num_entries_flush) - : MemTableRep(allocator), - memtable_(memtable), - num_entries_flush_(num_entries_flush), - num_entries_(0) {} - - virtual KeyHandle Allocate(const size_t len, char** buf) override { - return memtable_->Allocate(len, buf); - } - - // Insert key into the list. - // REQUIRES: nothing that compares equal to key is currently in the list. - virtual void Insert(KeyHandle handle) override { - memtable_->Insert(handle); - num_entries_++; - } - - // Returns true iff an entry that compares equal to key is in the list. - virtual bool Contains(const char* key) const override { - return memtable_->Contains(key); - } - - virtual size_t ApproximateMemoryUsage() override { - // Return a high memory usage when number of entries exceeds the threshold - // to trigger a flush. - return (num_entries_ < num_entries_flush_) ? 0 : 1024 * 1024 * 1024; - } - - virtual void Get(const LookupKey& k, void* callback_args, - bool (*callback_func)(void* arg, - const char* entry)) override { - memtable_->Get(k, callback_args, callback_func); - } - - uint64_t ApproximateNumEntries(const Slice& start_ikey, - const Slice& end_ikey) override { - return memtable_->ApproximateNumEntries(start_ikey, end_ikey); - } - - virtual MemTableRep::Iterator* GetIterator(Arena* arena = nullptr) override { - return memtable_->GetIterator(arena); - } - - virtual ~SpecialMemTableRep() override {} - - private: - unique_ptr<MemTableRep> memtable_; - int num_entries_flush_; - int num_entries_; -}; - -// The factory for the hacky skip list mem table that triggers flush after -// number of entries exceeds a threshold. -class SpecialSkipListFactory : public MemTableRepFactory { - public: - // After number of inserts exceeds `num_entries_flush` in a mem table, trigger - // flush. - explicit SpecialSkipListFactory(int num_entries_flush) - : num_entries_flush_(num_entries_flush) {} - - using MemTableRepFactory::CreateMemTableRep; - virtual MemTableRep* CreateMemTableRep( - const MemTableRep::KeyComparator& compare, Allocator* allocator, - const SliceTransform* transform, Logger* logger) override { - return new SpecialMemTableRep( - allocator, factory_.CreateMemTableRep(compare, allocator, transform, 0), - num_entries_flush_); - } - virtual const char* Name() const override { return "SkipListFactory"; } - - bool IsInsertConcurrentlySupported() const override { - return factory_.IsInsertConcurrentlySupported(); - } - - private: - SkipListFactory factory_; - int num_entries_flush_; -}; - -// Special Env used to delay background operations -class SpecialEnv : public EnvWrapper { - public: - explicit SpecialEnv(Env* base); - - Status NewWritableFile(const std::string& f, unique_ptr<WritableFile>* r, - const EnvOptions& soptions) override { - class SSTableFile : public WritableFile { - private: - SpecialEnv* env_; - unique_ptr<WritableFile> base_; - - public: - SSTableFile(SpecialEnv* env, unique_ptr<WritableFile>&& base) - : env_(env), base_(std::move(base)) {} - Status Append(const Slice& data) override { - if (env_->table_write_callback_) { - (*env_->table_write_callback_)(); - } - if (env_->drop_writes_.load(std::memory_order_acquire)) { - // Drop writes on the floor - return Status::OK(); - } else if (env_->no_space_.load(std::memory_order_acquire)) { - return Status::NoSpace("No space left on device"); - } else { - env_->bytes_written_ += data.size(); - return base_->Append(data); - } - } - Status PositionedAppend(const Slice& data, uint64_t offset) override { - if (env_->table_write_callback_) { - (*env_->table_write_callback_)(); - } - if (env_->drop_writes_.load(std::memory_order_acquire)) { - // Drop writes on the floor - return Status::OK(); - } else if (env_->no_space_.load(std::memory_order_acquire)) { - return Status::NoSpace("No space left on device"); - } else { - env_->bytes_written_ += data.size(); - return base_->PositionedAppend(data, offset); - } - } - Status Truncate(uint64_t size) override { return base_->Truncate(size); } - Status RangeSync(uint64_t offset, uint64_t nbytes) override { - Status s = base_->RangeSync(offset, nbytes); -#if !(defined NDEBUG) || !defined(OS_WIN) - TEST_SYNC_POINT_CALLBACK("SpecialEnv::SStableFile::RangeSync", &s); -#endif // !(defined NDEBUG) || !defined(OS_WIN) - return s; - } - Status Close() override { -// SyncPoint is not supported in Released Windows Mode. -#if !(defined NDEBUG) || !defined(OS_WIN) - // Check preallocation size - // preallocation size is never passed to base file. - size_t preallocation_size = preallocation_block_size(); - TEST_SYNC_POINT_CALLBACK("DBTestWritableFile.GetPreallocationStatus", - &preallocation_size); -#endif // !(defined NDEBUG) || !defined(OS_WIN) - Status s = base_->Close(); -#if !(defined NDEBUG) || !defined(OS_WIN) - TEST_SYNC_POINT_CALLBACK("SpecialEnv::SStableFile::Close", &s); -#endif // !(defined NDEBUG) || !defined(OS_WIN) - return s; - } - Status Flush() override { return base_->Flush(); } - Status Sync() override { - ++env_->sync_counter_; - while (env_->delay_sstable_sync_.load(std::memory_order_acquire)) { - env_->SleepForMicroseconds(100000); - } - Status s = base_->Sync(); -#if !(defined NDEBUG) || !defined(OS_WIN) - TEST_SYNC_POINT_CALLBACK("SpecialEnv::SStableFile::Sync", &s); -#endif // !(defined NDEBUG) || !defined(OS_WIN) - return s; - } - void SetIOPriority(Env::IOPriority pri) override { - base_->SetIOPriority(pri); - } - Env::IOPriority GetIOPriority() override { - return base_->GetIOPriority(); - } - bool use_direct_io() const override { - return base_->use_direct_io(); - } - Status Allocate(uint64_t offset, uint64_t len) override { - return base_->Allocate(offset, len); - } - }; - class ManifestFile : public WritableFile { - public: - ManifestFile(SpecialEnv* env, unique_ptr<WritableFile>&& b) - : env_(env), base_(std::move(b)) {} - Status Append(const Slice& data) override { - if (env_->manifest_write_error_.load(std::memory_order_acquire)) { - return Status::IOError("simulated writer error"); - } else { - return base_->Append(data); - } - } - Status Truncate(uint64_t size) override { return base_->Truncate(size); } - Status Close() override { return base_->Close(); } - Status Flush() override { return base_->Flush(); } - Status Sync() override { - ++env_->sync_counter_; - if (env_->manifest_sync_error_.load(std::memory_order_acquire)) { - return Status::IOError("simulated sync error"); - } else { - return base_->Sync(); - } - } - uint64_t GetFileSize() override { return base_->GetFileSize(); } - - private: - SpecialEnv* env_; - unique_ptr<WritableFile> base_; - }; - class WalFile : public WritableFile { - public: - WalFile(SpecialEnv* env, unique_ptr<WritableFile>&& b) - : env_(env), base_(std::move(b)) { - env_->num_open_wal_file_.fetch_add(1); - } - virtual ~WalFile() { env_->num_open_wal_file_.fetch_add(-1); } - Status Append(const Slice& data) override { -#if !(defined NDEBUG) || !defined(OS_WIN) - TEST_SYNC_POINT("SpecialEnv::WalFile::Append:1"); -#endif - Status s; - if (env_->log_write_error_.load(std::memory_order_acquire)) { - s = Status::IOError("simulated writer error"); - } else { - int slowdown = - env_->log_write_slowdown_.load(std::memory_order_acquire); - if (slowdown > 0) { - env_->SleepForMicroseconds(slowdown); - } - s = base_->Append(data); - } -#if !(defined NDEBUG) || !defined(OS_WIN) - TEST_SYNC_POINT("SpecialEnv::WalFile::Append:2"); -#endif - return s; - } - Status Truncate(uint64_t size) override { return base_->Truncate(size); } - Status Close() override { -// SyncPoint is not supported in Released Windows Mode. -#if !(defined NDEBUG) || !defined(OS_WIN) - // Check preallocation size - // preallocation size is never passed to base file. - size_t preallocation_size = preallocation_block_size(); - TEST_SYNC_POINT_CALLBACK("DBTestWalFile.GetPreallocationStatus", - &preallocation_size); -#endif // !(defined NDEBUG) || !defined(OS_WIN) - - return base_->Close(); - } - Status Flush() override { return base_->Flush(); } - Status Sync() override { - ++env_->sync_counter_; - return base_->Sync(); - } - bool IsSyncThreadSafe() const override { - return env_->is_wal_sync_thread_safe_.load(); - } - - private: - SpecialEnv* env_; - unique_ptr<WritableFile> base_; - }; - - if (non_writeable_rate_.load(std::memory_order_acquire) > 0) { - uint32_t random_number; - { - MutexLock l(&rnd_mutex_); - random_number = rnd_.Uniform(100); - } - if (random_number < non_writeable_rate_.load()) { - return Status::IOError("simulated random write error"); - } - } - - new_writable_count_++; - - if (non_writable_count_.load() > 0) { - non_writable_count_--; - return Status::IOError("simulated write error"); - } - - EnvOptions optimized = soptions; - if (strstr(f.c_str(), "MANIFEST") != nullptr || - strstr(f.c_str(), "log") != nullptr) { - optimized.use_mmap_writes = false; - optimized.use_direct_writes = false; - } - - Status s = target()->NewWritableFile(f, r, optimized); - if (s.ok()) { - if (strstr(f.c_str(), ".sst") != nullptr) { - r->reset(new SSTableFile(this, std::move(*r))); - } else if (strstr(f.c_str(), "MANIFEST") != nullptr) { - r->reset(new ManifestFile(this, std::move(*r))); - } else if (strstr(f.c_str(), "log") != nullptr) { - r->reset(new WalFile(this, std::move(*r))); - } - } - return s; - } - - Status NewRandomAccessFile(const std::string& f, - unique_ptr<RandomAccessFile>* r, - const EnvOptions& soptions) override { - class CountingFile : public RandomAccessFile { - public: - CountingFile(unique_ptr<RandomAccessFile>&& target, - anon::AtomicCounter* counter, - std::atomic<size_t>* bytes_read) - : target_(std::move(target)), - counter_(counter), - bytes_read_(bytes_read) {} - virtual Status Read(uint64_t offset, size_t n, Slice* result, - char* scratch) const override { - counter_->Increment(); - Status s = target_->Read(offset, n, result, scratch); - *bytes_read_ += result->size(); - return s; - } - - private: - unique_ptr<RandomAccessFile> target_; - anon::AtomicCounter* counter_; - std::atomic<size_t>* bytes_read_; - }; - - Status s = target()->NewRandomAccessFile(f, r, soptions); - random_file_open_counter_++; - if (s.ok() && count_random_reads_) { - r->reset(new CountingFile(std::move(*r), &random_read_counter_, - &random_read_bytes_counter_)); - } - return s; - } - - Status NewSequentialFile(const std::string& f, unique_ptr<SequentialFile>* r, - const EnvOptions& soptions) override { - class CountingFile : public SequentialFile { - public: - CountingFile(unique_ptr<SequentialFile>&& target, - anon::AtomicCounter* counter) - : target_(std::move(target)), counter_(counter) {} - virtual Status Read(size_t n, Slice* result, char* scratch) override { - counter_->Increment(); - return target_->Read(n, result, scratch); - } - virtual Status Skip(uint64_t n) override { return target_->Skip(n); } - - private: - unique_ptr<SequentialFile> target_; - anon::AtomicCounter* counter_; - }; - - Status s = target()->NewSequentialFile(f, r, soptions); - if (s.ok() && count_sequential_reads_) { - r->reset(new CountingFile(std::move(*r), &sequential_read_counter_)); - } - return s; - } - - virtual void SleepForMicroseconds(int micros) override { - sleep_counter_.Increment(); - if (no_slowdown_ || time_elapse_only_sleep_) { - addon_time_.fetch_add(micros); - } - if (!no_slowdown_) { - target()->SleepForMicroseconds(micros); - } - } - - virtual Status GetCurrentTime(int64_t* unix_time) override { - Status s; - if (!time_elapse_only_sleep_) { - s = target()->GetCurrentTime(unix_time); - } - if (s.ok()) { - *unix_time += addon_time_.load(); - } - return s; - } - - virtual uint64_t NowNanos() override { - return (time_elapse_only_sleep_ ? 0 : target()->NowNanos()) + - addon_time_.load() * 1000; - } - - virtual uint64_t NowMicros() override { - return (time_elapse_only_sleep_ ? 0 : target()->NowMicros()) + - addon_time_.load(); - } - - virtual Status DeleteFile(const std::string& fname) override { - delete_count_.fetch_add(1); - return target()->DeleteFile(fname); - } - - Random rnd_; - port::Mutex rnd_mutex_; // Lock to pretect rnd_ - - // sstable Sync() calls are blocked while this pointer is non-nullptr. - std::atomic<bool> delay_sstable_sync_; - - // Drop writes on the floor while this pointer is non-nullptr. - std::atomic<bool> drop_writes_; - - // Simulate no-space errors while this pointer is non-nullptr. - std::atomic<bool> no_space_; - - // Simulate non-writable file system while this pointer is non-nullptr - std::atomic<bool> non_writable_; - - // Force sync of manifest files to fail while this pointer is non-nullptr - std::atomic<bool> manifest_sync_error_; - - // Force write to manifest files to fail while this pointer is non-nullptr - std::atomic<bool> manifest_write_error_; - - // Force write to log files to fail while this pointer is non-nullptr - std::atomic<bool> log_write_error_; - - // Slow down every log write, in micro-seconds. - std::atomic<int> log_write_slowdown_; - - // Number of WAL files that are still open for write. - std::atomic<int> num_open_wal_file_; - - bool count_random_reads_; - anon::AtomicCounter random_read_counter_; - std::atomic<size_t> random_read_bytes_counter_; - std::atomic<int> random_file_open_counter_; - - bool count_sequential_reads_; - anon::AtomicCounter sequential_read_counter_; - - anon::AtomicCounter sleep_counter_; - - std::atomic<int64_t> bytes_written_; - - std::atomic<int> sync_counter_; - - std::atomic<uint32_t> non_writeable_rate_; - - std::atomic<uint32_t> new_writable_count_; - - std::atomic<uint32_t> non_writable_count_; - - std::function<void()>* table_write_callback_; - - std::atomic<int64_t> addon_time_; - - std::atomic<int> delete_count_; - - bool time_elapse_only_sleep_; - - bool no_slowdown_; - - std::atomic<bool> is_wal_sync_thread_safe_{true}; -}; - -#ifndef ROCKSDB_LITE -class OnFileDeletionListener : public EventListener { - public: - OnFileDeletionListener() : matched_count_(0), expected_file_name_("") {} - - void SetExpectedFileName(const std::string file_name) { - expected_file_name_ = file_name; - } - - void VerifyMatchedCount(size_t expected_value) { - ASSERT_EQ(matched_count_, expected_value); - } - - void OnTableFileDeleted(const TableFileDeletionInfo& info) override { - if (expected_file_name_ != "") { - ASSERT_EQ(expected_file_name_, info.file_path); - expected_file_name_ = ""; - matched_count_++; - } - } - - private: - size_t matched_count_; - std::string expected_file_name_; -}; -#endif - -// A test merge operator mimics put but also fails if one of merge operands is -// "corrupted". -class TestPutOperator : public MergeOperator { - public: - virtual bool FullMergeV2(const MergeOperationInput& merge_in, - MergeOperationOutput* merge_out) const override { - if (merge_in.existing_value != nullptr && - *(merge_in.existing_value) == "corrupted") { - return false; - } - for (auto value : merge_in.operand_list) { - if (value == "corrupted") { - return false; - } - } - merge_out->existing_operand = merge_in.operand_list.back(); - return true; - } - - virtual const char* Name() const override { return "TestPutOperator"; } -}; - -class DBTestBase : public testing::Test { - public: - // Sequence of option configurations to try - enum OptionConfig : int { - kDefault = 0, - kBlockBasedTableWithPrefixHashIndex = 1, - kBlockBasedTableWithWholeKeyHashIndex = 2, - kPlainTableFirstBytePrefix = 3, - kPlainTableCappedPrefix = 4, - kPlainTableCappedPrefixNonMmap = 5, - kPlainTableAllBytesPrefix = 6, - kVectorRep = 7, - kHashLinkList = 8, - kHashCuckoo = 9, - kMergePut = 10, - kFilter = 11, - kFullFilterWithNewTableReaderForCompactions = 12, - kUncompressed = 13, - kNumLevel_3 = 14, - kDBLogDir = 15, - kWalDirAndMmapReads = 16, - kManifestFileSize = 17, - kPerfOptions = 18, - kHashSkipList = 19, - kUniversalCompaction = 20, - kUniversalCompactionMultiLevel = 21, - kCompressedBlockCache = 22, - kInfiniteMaxOpenFiles = 23, - kxxHashChecksum = 24, - kFIFOCompaction = 25, - kOptimizeFiltersForHits = 26, - kRowCache = 27, - kRecycleLogFiles = 28, - kConcurrentSkipList = 29, - kPipelinedWrite = 30, - kConcurrentWALWrites = 31, - kEnd = 32, - kDirectIO = 33, - kLevelSubcompactions = 34, - kUniversalSubcompactions = 35, - kBlockBasedTableWithIndexRestartInterval = 36, - kBlockBasedTableWithPartitionedIndex = 37, - kPartitionedFilterWithNewTableReaderForCompactions = 38, - }; - - public: - std::string dbname_; - std::string alternative_wal_dir_; - std::string alternative_db_log_dir_; - MockEnv* mem_env_; - Env* encrypted_env_; - SpecialEnv* env_; - DB* db_; - std::vector<ColumnFamilyHandle*> handles_; - - int option_config_; - Options last_options_; - - // Skip some options, as they may not be applicable to a specific test. - // To add more skip constants, use values 4, 8, 16, etc. - enum OptionSkip { - kNoSkip = 0, - kSkipDeletesFilterFirst = 1, - kSkipUniversalCompaction = 2, - kSkipMergePut = 4, - kSkipPlainTable = 8, - kSkipHashIndex = 16, - kSkipNoSeekToLast = 32, - kSkipHashCuckoo = 64, - kSkipFIFOCompaction = 128, - kSkipMmapReads = 256, - }; - - explicit DBTestBase(const std::string path); - - ~DBTestBase(); - - static std::string RandomString(Random* rnd, int len) { - std::string r; - test::RandomString(rnd, len, &r); - return r; - } - - static std::string Key(int i) { - char buf[100]; - snprintf(buf, sizeof(buf), "key%06d", i); - return std::string(buf); - } - - static bool ShouldSkipOptions(int option_config, int skip_mask = kNoSkip); - - // Switch to a fresh database with the next option configuration to - // test. Return false if there are no more configurations to test. - bool ChangeOptions(int skip_mask = kNoSkip); - - // Switch between different compaction styles. - bool ChangeCompactOptions(); - - // Switch between different WAL-realted options. - bool ChangeWalOptions(); - - // Switch between different filter policy - // Jump from kDefault to kFilter to kFullFilter - bool ChangeFilterOptions(); - - // Return the current option configuration. - Options CurrentOptions(const anon::OptionsOverride& options_override = - anon::OptionsOverride()) const; - - Options CurrentOptions(const Options& default_options, - const anon::OptionsOverride& options_override = - anon::OptionsOverride()) const; - - static Options GetDefaultOptions(); - - Options GetOptions(int option_config, - const Options& default_options = GetDefaultOptions(), - const anon::OptionsOverride& options_override = - anon::OptionsOverride()) const; - - DBImpl* dbfull() { return reinterpret_cast<DBImpl*>(db_); } - - void CreateColumnFamilies(const std::vector<std::string>& cfs, - const Options& options); - - void CreateAndReopenWithCF(const std::vector<std::string>& cfs, - const Options& options); - - void ReopenWithColumnFamilies(const std::vector<std::string>& cfs, - const std::vector<Options>& options); - - void ReopenWithColumnFamilies(const std::vector<std::string>& cfs, - const Options& options); - - Status TryReopenWithColumnFamilies(const std::vector<std::string>& cfs, - const std::vector<Options>& options); - - Status TryReopenWithColumnFamilies(const std::vector<std::string>& cfs, - const Options& options); - - void Reopen(const Options& options); - - void Close(); - - void DestroyAndReopen(const Options& options); - - void Destroy(const Options& options); - - Status ReadOnlyReopen(const Options& options); - - Status TryReopen(const Options& options); - - bool IsDirectIOSupported(); - - bool IsMemoryMappedAccessSupported() const; - - Status Flush(int cf = 0); - - Status Put(const Slice& k, const Slice& v, WriteOptions wo = WriteOptions()); - - Status Put(int cf, const Slice& k, const Slice& v, - WriteOptions wo = WriteOptions()); - - Status Merge(const Slice& k, const Slice& v, - WriteOptions wo = WriteOptions()); - - Status Merge(int cf, const Slice& k, const Slice& v, - WriteOptions wo = WriteOptions()); - - Status Delete(const std::string& k); - - Status Delete(int cf, const std::string& k); - - Status SingleDelete(const std::string& k); - - Status SingleDelete(int cf, const std::string& k); - - std::string Get(const std::string& k, const Snapshot* snapshot = nullptr); - - std::string Get(int cf, const std::string& k, - const Snapshot* snapshot = nullptr); - - Status Get(const std::string& k, PinnableSlice* v); - - uint64_t GetNumSnapshots(); - - uint64_t GetTimeOldestSnapshots(); - - // Return a string that contains all key,value pairs in order, - // formatted like "(k1->v1)(k2->v2)". - std::string Contents(int cf = 0); - - std::string AllEntriesFor(const Slice& user_key, int cf = 0); - -#ifndef ROCKSDB_LITE - int NumSortedRuns(int cf = 0); - - uint64_t TotalSize(int cf = 0); - - uint64_t SizeAtLevel(int level); - - size_t TotalLiveFiles(int cf = 0); - - size_t CountLiveFiles(); -#endif // ROCKSDB_LITE - - int NumTableFilesAtLevel(int level, int cf = 0); - - double CompressionRatioAtLevel(int level, int cf = 0); - - int TotalTableFiles(int cf = 0, int levels = -1); - - // Return spread of files per level - std::string FilesPerLevel(int cf = 0); - - size_t CountFiles(); - - uint64_t Size(const Slice& start, const Slice& limit, int cf = 0); - - void Compact(int cf, const Slice& start, const Slice& limit, - uint32_t target_path_id); - - void Compact(int cf, const Slice& start, const Slice& limit); - - void Compact(const Slice& start, const Slice& limit); - - // Do n memtable compactions, each of which produces an sstable - // covering the range [small,large]. - void MakeTables(int n, const std::string& small, const std::string& large, - int cf = 0); - - // Prevent pushing of new sstables into deeper levels by adding - // tables that cover a specified range to all levels. - void FillLevels(const std::string& smallest, const std::string& largest, - int cf); - - void MoveFilesToLevel(int level, int cf = 0); - - void DumpFileCounts(const char* label); - - std::string DumpSSTableList(); - - void GetSstFiles(std::string path, std::vector<std::string>* files); - - int GetSstFileCount(std::string path); - - // this will generate non-overlapping files since it keeps increasing key_idx - void GenerateNewFile(Random* rnd, int* key_idx, bool nowait = false); - - void GenerateNewFile(int fd, Random* rnd, int* key_idx, bool nowait = false); - - static const int kNumKeysByGenerateNewRandomFile; - static const int KNumKeysByGenerateNewFile = 100; - - void GenerateNewRandomFile(Random* rnd, bool nowait = false); - - std::string IterStatus(Iterator* iter); - - Options OptionsForLogIterTest(); - - std::string DummyString(size_t len, char c = 'a'); - - void VerifyIterLast(std::string expected_key, int cf = 0); - - // Used to test InplaceUpdate - - // If previous value is nullptr or delta is > than previous value, - // sets newValue with delta - // If previous value is not empty, - // updates previous value with 'b' string of previous value size - 1. - static UpdateStatus updateInPlaceSmallerSize(char* prevValue, - uint32_t* prevSize, Slice delta, - std::string* newValue); - - static UpdateStatus updateInPlaceSmallerVarintSize(char* prevValue, - uint32_t* prevSize, - Slice delta, - std::string* newValue); - - static UpdateStatus updateInPlaceLargerSize(char* prevValue, - uint32_t* prevSize, Slice delta, - std::string* newValue); - - static UpdateStatus updateInPlaceNoAction(char* prevValue, uint32_t* prevSize, - Slice delta, std::string* newValue); - - // Utility method to test InplaceUpdate - void validateNumberOfEntries(int numValues, int cf = 0); - - void CopyFile(const std::string& source, const std::string& destination, - uint64_t size = 0); - - std::unordered_map<std::string, uint64_t> GetAllSSTFiles( - uint64_t* total_size = nullptr); - - std::vector<std::uint64_t> ListTableFiles(Env* env, const std::string& path); - - void VerifyDBFromMap( - std::map<std::string, std::string> true_data, - size_t* total_reads_res = nullptr, bool tailing_iter = false, - std::map<std::string, Status> status = std::map<std::string, Status>()); - - void VerifyDBInternal( - std::vector<std::pair<std::string, std::string>> true_data); - -#ifndef ROCKSDB_LITE - uint64_t GetNumberOfSstFilesForColumnFamily(DB* db, - std::string column_family_name); -#endif // ROCKSDB_LITE - - uint64_t TestGetTickerCount(const Options& options, Tickers ticker_type) { - return options.statistics->getTickerCount(ticker_type); - } -}; - -} // namespace rocksdb
http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/.gitignore ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/.gitignore b/thirdparty/rocksdb/docs/.gitignore deleted file mode 100644 index e48dc98..0000000 --- a/thirdparty/rocksdb/docs/.gitignore +++ /dev/null @@ -1,9 +0,0 @@ -.DS_STORE -_site/ -*.swo -*.swp -_site -.sass-cache -*.psd -*~ - http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/CNAME ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/CNAME b/thirdparty/rocksdb/docs/CNAME deleted file mode 100644 index 827d1c0..0000000 --- a/thirdparty/rocksdb/docs/CNAME +++ /dev/null @@ -1 +0,0 @@ -rocksdb.org \ No newline at end of file http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/CONTRIBUTING.md ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/CONTRIBUTING.md b/thirdparty/rocksdb/docs/CONTRIBUTING.md deleted file mode 100644 index 2c5842f..0000000 --- a/thirdparty/rocksdb/docs/CONTRIBUTING.md +++ /dev/null @@ -1,115 +0,0 @@ -This provides guidance on how to contribute various content to `rocksdb.org`. - -## Getting started - -You should only have to do these one time. - -- Rename this file to `CONTRIBUTING.md`. -- Rename `EXAMPLE-README-FOR-RUNNING-DOCS.md` to `README.md` (replacing the existing `README.md` that came with the template). -- Rename `EXAMPLE-LICENSE` to `LICENSE`. -- Review the [template information](./TEMPLATE-INFORMATION.md). -- Review `./_config.yml`. -- Make sure you update `title`, `description`, `tagline` and `gacode` (Google Analytics) in `./_config.yml`. - -## Basic Structure - -Most content is written in markdown. You name the file `something.md`, then have a header that looks like this: - -``` ---- -docid: getting-started -title: Getting started with ProjectName -layout: docs -permalink: /docs/getting-started.html ---- -``` - -Customize these values for each document, blog post, etc. - -> The filename of the `.md` file doesn't actually matter; what is important is the `docid` being unique and the `permalink` correct and unique too). - -## Landing page - -Modify `index.md` with your new or updated content. - -If you want a `GridBlock` as part of your content, you can do so directly with HTML: - -``` -<div class="gridBlock"> - <div class="blockElement twoByGridBlock alignLeft"> - <div class="blockContent"> - <h3>Your Features</h3> - <ul> - <li>The <a href="http://example.org/";>Example</a></li> - <li><a href="http://example.com";>Another Example</a></li> - </ul> - </div> - </div> - - <div class="blockElement twoByGridBlock alignLeft"> - <div class="blockContent"> - <h3>More information</h3> - <p> - Stuff here - </p> - </div> - </div> -</div> -``` - -or with a combination of changing `./_data/features.yml` and adding some Liquid to `index.md`, such as: - -``` -{% include content/gridblocks.html data_source=site.data.features imagealign="bottom"%} -``` - -## Blog - -To modify a blog post, edit the appopriate markdown file in `./_posts/`. - -Adding a new blog post is a four-step process. - -> Some posts have a `permalink` and `comments` in the blog post YAML header. You will not need these for new blog posts. These are an artifact of migrating the blog from Wordpress to gh-pages. - -1. Create your blog post in `./_posts/` in markdown (file extension `.md` or `.markdown`). See current posts in that folder or `./doc-type-examples/2016-04-07-blog-post-example.md` for an example of the YAML format. **If the `./_posts` directory does not exist, create it**. - - You can add a `<!--truncate-->` tag in the middle of your post such that you show only the excerpt above that tag in the main `/blog` index on your page. -1. If you have not authored a blog post before, modify the `./_data/authors.yml` file with the `author` id you used in your blog post, along with your full name and Facebook ID to get your profile picture. -1. [Run the site locally](./README.md) to test your changes. It will be at `http://127.0.0.1/blog/your-new-blog-post-title.html` -1. Push your changes to GitHub. - -## Docs - -To modify docs, edit the appropriate markdown file in `./_docs/`. - -To add docs to the site.... - -1. Add your markdown file to the `./_docs/` folder. See `./doc-type-examples/docs-hello-world.md` for an example of the YAML header format. **If the `./_docs/` directory does not exist, create it**. - - You can use folders in the `./_docs/` directory to organize your content if you want. -1. Update `_data/nav_docs.yml` to add your new document to the navigation bar. Use the `docid` you put in your doc markdown in as the `id` in the `_data/nav_docs.yml` file. -1. [Run the site locally](./README.md) to test your changes. It will be at `http://127.0.0.1/docs/your-new-doc-permalink.html` -1. Push your changes to GitHub. - -## Header Bar - -To modify the header bar, change `./_data/nav.yml`. - -## Top Level Page - -To modify a top-level page, edit the appropriate markdown file in `./top-level/` - -If you want a top-level page (e.g., http://your-site.com/top-level.html) -- not in `/blog/` or `/docs/`.... - -1. Create a markdown file in the root `./top-level/`. See `./doc-type-examples/top-level-example.md` for more information. -1. If you want a visible link to that file, update `_data/nav.yml` to add a link to your new top-level document in the header bar. - - > This is not necessary if you just want to have a page that is linked to from another page, but not exposed as direct link to the user. - -1. [Run the site locally](./README.md) to test your changes. It will be at `http://127.0.0.1/your-top-level-page-permalink.html` -1. Push your changes to GitHub. - -## Other Changes - -- CSS: `./css/main.css` or `./_sass/*.scss`. -- Images: `./static/images/[docs | posts]/....` -- Main Blog post HTML: `./_includes/post.html` -- Main Docs HTML: `./_includes/doc.html` http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/Gemfile ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/Gemfile b/thirdparty/rocksdb/docs/Gemfile deleted file mode 100644 index 93dc8b0..0000000 --- a/thirdparty/rocksdb/docs/Gemfile +++ /dev/null @@ -1,2 +0,0 @@ -source 'https://rubygems.org' -gem 'github-pages', '~> 104' http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/Gemfile.lock ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/Gemfile.lock b/thirdparty/rocksdb/docs/Gemfile.lock deleted file mode 100644 index 346fc6c..0000000 --- a/thirdparty/rocksdb/docs/Gemfile.lock +++ /dev/null @@ -1,145 +0,0 @@ -GEM - remote: https://rubygems.org/ - specs: - activesupport (4.2.7) - i18n (~> 0.7) - json (~> 1.7, >= 1.7.7) - minitest (~> 5.1) - thread_safe (~> 0.3, >= 0.3.4) - tzinfo (~> 1.1) - addressable (2.4.0) - coffee-script (2.4.1) - coffee-script-source - execjs - coffee-script-source (1.10.0) - colorator (1.1.0) - ethon (0.9.1) - ffi (>= 1.3.0) - execjs (2.7.0) - faraday (0.9.2) - multipart-post (>= 1.2, < 3) - ffi (1.9.14) - forwardable-extended (2.6.0) - gemoji (2.1.0) - github-pages (104) - activesupport (= 4.2.7) - github-pages-health-check (= 1.2.0) - jekyll (= 3.3.0) - jekyll-avatar (= 0.4.2) - jekyll-coffeescript (= 1.0.1) - jekyll-feed (= 0.8.0) - jekyll-gist (= 1.4.0) - jekyll-github-metadata (= 2.2.0) - jekyll-mentions (= 1.2.0) - jekyll-paginate (= 1.1.0) - jekyll-redirect-from (= 0.11.0) - jekyll-sass-converter (= 1.3.0) - jekyll-seo-tag (= 2.1.0) - jekyll-sitemap (= 0.12.0) - jekyll-swiss (= 0.4.0) - jemoji (= 0.7.0) - kramdown (= 1.11.1) - liquid (= 3.0.6) - listen (= 3.0.6) - mercenary (~> 0.3) - minima (= 2.0.0) - rouge (= 1.11.1) - terminal-table (~> 1.4) - github-pages-health-check (1.2.0) - addressable (~> 2.3) - net-dns (~> 0.8) - octokit (~> 4.0) - public_suffix (~> 1.4) - typhoeus (~> 0.7) - html-pipeline (2.4.2) - activesupport (>= 2) - nokogiri (>= 1.4) - i18n (0.7.0) - jekyll (3.3.0) - addressable (~> 2.4) - colorator (~> 1.0) - jekyll-sass-converter (~> 1.0) - jekyll-watch (~> 1.1) - kramdown (~> 1.3) - liquid (~> 3.0) - mercenary (~> 0.3.3) - pathutil (~> 0.9) - rouge (~> 1.7) - safe_yaml (~> 1.0) - jekyll-avatar (0.4.2) - jekyll (~> 3.0) - jekyll-coffeescript (1.0.1) - coffee-script (~> 2.2) - jekyll-feed (0.8.0) - jekyll (~> 3.3) - jekyll-gist (1.4.0) - octokit (~> 4.2) - jekyll-github-metadata (2.2.0) - jekyll (~> 3.1) - octokit (~> 4.0, != 4.4.0) - jekyll-mentions (1.2.0) - activesupport (~> 4.0) - html-pipeline (~> 2.3) - jekyll (~> 3.0) - jekyll-paginate (1.1.0) - jekyll-redirect-from (0.11.0) - jekyll (>= 2.0) - jekyll-sass-converter (1.3.0) - sass (~> 3.2) - jekyll-seo-tag (2.1.0) - jekyll (~> 3.3) - jekyll-sitemap (0.12.0) - jekyll (~> 3.3) - jekyll-swiss (0.4.0) - jekyll-watch (1.5.0) - listen (~> 3.0, < 3.1) - jemoji (0.7.0) - activesupport (~> 4.0) - gemoji (~> 2.0) - html-pipeline (~> 2.2) - jekyll (>= 3.0) - json (1.8.3) - kramdown (1.11.1) - liquid (3.0.6) - listen (3.0.6) - rb-fsevent (>= 0.9.3) - rb-inotify (>= 0.9.7) - mercenary (0.3.6) - mini_portile2 (2.1.0) - minima (2.0.0) - minitest (5.9.1) - multipart-post (2.0.0) - net-dns (0.8.0) - nokogiri (1.6.8.1) - mini_portile2 (~> 2.1.0) - octokit (4.4.1) - sawyer (~> 0.7.0, >= 0.5.3) - pathutil (0.14.0) - forwardable-extended (~> 2.6) - public_suffix (1.5.3) - rb-fsevent (0.9.8) - rb-inotify (0.9.7) - ffi (>= 0.5.0) - rouge (1.11.1) - safe_yaml (1.0.4) - sass (3.4.22) - sawyer (0.7.0) - addressable (>= 2.3.5, < 2.5) - faraday (~> 0.8, < 0.10) - terminal-table (1.7.3) - unicode-display_width (~> 1.1.1) - thread_safe (0.3.5) - typhoeus (0.8.0) - ethon (>= 0.8.0) - tzinfo (1.2.2) - thread_safe (~> 0.1) - unicode-display_width (1.1.1) - -PLATFORMS - ruby - -DEPENDENCIES - github-pages (~> 104) - -BUNDLED WITH - 1.13.1 http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/LICENSE-DOCUMENTATION ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/LICENSE-DOCUMENTATION b/thirdparty/rocksdb/docs/LICENSE-DOCUMENTATION deleted file mode 100644 index 1f255c9..0000000 --- a/thirdparty/rocksdb/docs/LICENSE-DOCUMENTATION +++ /dev/null @@ -1,385 +0,0 @@ -Attribution 4.0 International - -======================================================================= - -Creative Commons Corporation ("Creative Commons") is not a law firm and -does not provide legal services or legal advice. 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If the provision - cannot be reformed, it shall be severed from this Public License - without affecting the enforceability of the remaining terms and - conditions. - -c. No term or condition of this Public License will be waived and no - failure to comply consented to unless expressly agreed to by the - Licensor. - -d. Nothing in this Public License constitutes or may be interpreted - as a limitation upon, or waiver of, any privileges and immunities - that apply to the Licensor or You, including from the legal - processes of any jurisdiction or authority. - -======================================================================= - -Creative Commons is not a party to its public licenses. -Notwithstanding, Creative Commons may elect to apply one of its public -licenses to material it publishes and in those instances will be -considered the "Licensor." Except for the limited purpose of indicating -that material is shared under a Creative Commons public license or as -otherwise permitted by the Creative Commons policies published at -creativecommons.org/policies, Creative Commons does not authorize the -use of the trademark "Creative Commons" or any other trademark or logo -of Creative Commons without its prior written consent including, -without limitation, in connection with any unauthorized modifications -to any of its public licenses or any other arrangements, -understandings, or agreements concerning use of licensed material. For -the avoidance of doubt, this paragraph does not form part of the public -licenses. - -Creative Commons may be contacted at creativecommons.org. - http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/README.md ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/README.md b/thirdparty/rocksdb/docs/README.md deleted file mode 100644 index 0ae8978..0000000 --- a/thirdparty/rocksdb/docs/README.md +++ /dev/null @@ -1,80 +0,0 @@ -## User Documentation for rocksdb.org - -This directory will contain the user and feature documentation for RocksDB. The documentation will be hosted on GitHub pages. - -### Contributing - -See [CONTRIBUTING.md](./CONTRIBUTING.md) for details on how to add or modify content. - -### Run the Site Locally - -The requirements for running a GitHub pages site locally is described in [GitHub help](https://help.github.com/articles/setting-up-your-github-pages-site-locally-with-jekyll/#requirements). The steps below summarize these steps. - -> If you have run the site before, you can start with step 1 and then move on to step 5. - -1. Ensure that you are in the `/docs` directory in your local RocksDB clone (i.e., the same directory where this `README.md` exists). The below RubyGems commands, etc. must be run from there. - -1. Make sure you have Ruby and [RubyGems](https://rubygems.org/) installed. - - > Ruby >= 2.2 is required for the gems. On the latest versions of Mac OS X, Ruby 2.0 is the - > default. Use `brew install ruby` (or your preferred upgrade mechanism) to install a newer - > version of Ruby for your Mac OS X system. - -1. Make sure you have [Bundler](http://bundler.io/) installed. - - ``` - # may require sudo - gem install bundler - ``` -1. Install the project's dependencies - - ``` - # run this in the 'docs' directory - bundle install - ``` - - > If you get an error when installing `nokogiri`, you may be running into the problem described - > in [this nokogiri issue](https://github.com/sparklemotion/nokogiri/issues/1483). You can - > either `brew uninstall xz` (and then `brew install xz` after the bundle is installed) or - > `xcode-select --install` (although this may not work if you have already installed command - > line tools). - -1. Run Jekyll's server. - - - On first runs or for structural changes to the documentation (e.g., new sidebar menu item), do a full build. - - ``` - bundle exec jekyll serve - ``` - - - For content changes only, you can use `--incremental` for faster builds. - - ``` - bundle exec jekyll serve --incremental - ``` - - > We use `bundle exec` instead of running straight `jekyll` because `bundle exec` will always use the version of Jekyll from our `Gemfile`. Just running `jekyll` will use the system version and may not necessarily be compatible. - - - To run using an actual IP address, you can use `--host=0.0.0.0` - - ``` - bundle exec jekyll serve --host=0.0.0.0 - ``` - - This will allow you to use the IP address associated with your machine in the URL. That way you could share it with other people. - - e.g., on a Mac, you can your IP address with something like `ifconfig | grep "inet " | grep -v 127.0.0.1`. - -1. Either of commands in the previous step will serve up the site on your local device at http://127.0.0.1:4000/ or http://localhost:4000. - -### Updating the Bundle - -The site depends on Github Pages and the installed bundle is based on the `github-pages` gem. -Occasionally that gem might get updated with new or changed functionality. If that is the case, -you can run: - -``` -bundle update -``` - -to get the latest packages for the installation. http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/TEMPLATE-INFORMATION.md ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/TEMPLATE-INFORMATION.md b/thirdparty/rocksdb/docs/TEMPLATE-INFORMATION.md deleted file mode 100644 index 9175bc0..0000000 --- a/thirdparty/rocksdb/docs/TEMPLATE-INFORMATION.md +++ /dev/null @@ -1,17 +0,0 @@ -## Template Details - -First, go through `_config.yml` and adjust the available settings to your project's standard. When you make changes here, you'll have to kill the `jekyll serve` instance and restart it to see those changes, but that's only the case with the config file. - -Next, update some image assets - you'll want to update `favicon.png`, `logo.svg`, and `og_image.png` (used for Like button stories and Shares on Facbeook) in the `static` folder with your own logos. - -Next, if you're going to have docs on your site, keep the `_docs` and `docs` folders, if not, you can safely remove them (or you can safely leave them and not include them in your navigation - Jekyll renders all of this before a client views the site anyway, so there's no performance hit from just leaving it there for a future expansion). - -Same thing with a blog section, either keep or delete the `_posts` and `blog` folders. - -You can customize your homepage in three parts - the first in the homepage header, which is mostly automatically derived from the elements you insert into your config file. However, you can also specify a series of 'promotional' elements in `_data/promo.yml`. You can read that file for more information. - -The second place for your homepage is in `index.md` which contains the bulk of the main content below the header. This is all markdown if you want, but you can use HTML and Jekyll's template tags (called Liquid) in there too. Checkout this folder's index.md for an example of one common template tag that we use on our sites called gridblocks. - -The third and last place is in the `_data/powered_by.yml` and `_data/powered_by_highlight.yml` files. Both these files combine to create a section on the homepage that is intended to show a list of companies or apps that are using your project. The `powered_by_highlight` file is a list of curated companies/apps that you want to show as a highlight at the top of this section, including their logos in whatever format you want. The `powered_by` file is a more open list that is just text links to the companies/apps and can be updated via Pull Request by the community. If you don't want these sections on your homepage, just empty out both files and leave them blank. - -The last thing you'll want to do is setup your top level navigation bar. You can do this by editing `nav.yml` and keeping the existing title/href/category structure used there. Although the nav is responsive and fairly flexible design-wise, no more than 5 or 6 nav items is recommended. http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_config.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_config.yml b/thirdparty/rocksdb/docs/_config.yml deleted file mode 100644 index 2e5cee0..0000000 --- a/thirdparty/rocksdb/docs/_config.yml +++ /dev/null @@ -1,85 +0,0 @@ -# Site settings -permalink: /blog/:year/:month/:day/:title.html -title: RocksDB -tagline: A persistent key-value store for fast storage environments -description: > - RocksDB is an embeddable persistent key-value store for fast storage. -fbappid: "1615782811974223" -gacode: "UA-49459723-1" -# baseurl determines the subpath of your site. For example if you're using an -# organisation.github.io/reponame/ basic site URL, then baseurl would be set -# as "/reponame" but leave blank if you have a top-level domain URL as it is -# now set to "" by default as discussed in: -# http://jekyllrb.com/news/2016/10/06/jekyll-3-3-is-here/ -baseurl: "" - -# the base hostname & protocol for your site -# If baseurl is set, then the absolute url for your site would be url/baseurl -# This was also be set to the right thing automatically for local development -# https://github.com/blog/2277-what-s-new-in-github-pages-with-jekyll-3-3 -# http://jekyllrb.com/news/2016/10/06/jekyll-3-3-is-here/ -url: "http://rocksdb.org"; - -# Note: There are new filters in Jekyll 3.3 to help with absolute and relative urls -# absolute_url -# relative_url -# So you will see these used throughout the Jekyll code in this template. -# no more need for | prepend: site.url | prepend: site.baseurl -# http://jekyllrb.com/news/2016/10/06/jekyll-3-3-is-here/ -#https://github.com/blog/2277-what-s-new-in-github-pages-with-jekyll-3-3 - -# The GitHub repo for your project -ghrepo: "facebook/rocksdb" - -# Use these color settings to determine your colour scheme for the site. -color: - # primary should be a vivid color that reflects the project's brand - primary: "#2a2a2a" - # secondary should be a subtle light or dark color used on page backgrounds - secondary: "#f9f9f9" - # Use the following to specify whether the previous two colours are 'light' - # or 'dark' and therefore what colors can be overlaid on them - primary-overlay: "dark" - secondary-overlay: "light" - -#Uncomment this if you want to enable Algolia doc search with your own values -#searchconfig: -# apikey: "" -# indexname: "" - -# Blog posts are builtin to Jekyll by default, with the `_posts` directory. -# Here you can specify other types of documentation. The names here are `docs` -# and `top-level`. This means their content will be in `_docs` and `_top-level`. -# The permalink format is also given. -# http://ben.balter.com/2015/02/20/jekyll-collections/ -collections: - docs: - output: true - permalink: /docs/:name/ - top-level: - output: true - permalink: :name.html - -# DO NOT ADJUST BELOW THIS LINE UNLESS YOU KNOW WHAT YOU ARE CHANGING - -markdown: kramdown -kramdown: - input: GFM - syntax_highlighter: rouge - - syntax_highlighter_opts: - css_class: 'rougeHighlight' - span: - line_numbers: false - block: - line_numbers: true - start_line: 1 - -sass: - style: :compressed - -redcarpet: - extensions: [with_toc_data] - -gems: - - jekyll-redirect-from http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_data/authors.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_data/authors.yml b/thirdparty/rocksdb/docs/_data/authors.yml deleted file mode 100644 index b3ed49e..0000000 --- a/thirdparty/rocksdb/docs/_data/authors.yml +++ /dev/null @@ -1,62 +0,0 @@ -icanadi: - full_name: Igor Canadi - fbid: 706165749 - -xjin: - full_name: Xing Jin - fbid: 100000739847320 - -leijin: - full_name: Lei Jin - fbid: 634570164 - -yhciang: - full_name: Yueh-Hsuan Chiang - fbid: 1619020986 - -radheshyam: - full_name: Radheshyam Balasundaram - fbid: 800837305 - -zagfox: - full_name: Feng Zhu - fbid: 100006493823622 - -lgalanis: - full_name: Leonidas Galanis - fbid: 8649950 - -sdong: - full_name: Siying Dong - fbid: 9805119 - -dmitrism: - full_name: Dmitri Smirnov - -rven2: - full_name: Venkatesh Radhakrishnan - fbid: 100008352697325 - -yiwu: - full_name: Yi Wu - fbid: 100000476362039 - -maysamyabandeh: - full_name: Maysam Yabandeh - fbid: 100003482360101 - -IslamAbdelRahman: - full_name: Islam AbdelRahman - fbid: 642759407 - -ajkr: - full_name: Andrew Kryczka - fbid: 100010829806660 - -sagar0: - full_name: Sagar Vemuri - fbid: 2419111 - -lightmark: - full_name: Aaron Gao - fbid: 1351549072 http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_data/features.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_data/features.yml b/thirdparty/rocksdb/docs/_data/features.yml deleted file mode 100644 index d692c18..0000000 --- a/thirdparty/rocksdb/docs/_data/features.yml +++ /dev/null @@ -1,19 +0,0 @@ -- title: High Performance - text: | - RocksDB uses a log structured database engine, written entirely in C++, for maximum performance. Keys and values are just arbitrarily-sized byte streams. - image: images/promo-performance.svg - -- title: Optimized for Fast Storage - text: | - RocksDB is optimized for fast, low latency storage such as flash drives and high-speed disk drives. RocksDB exploits the full potential of high read/write rates offered by flash or RAM. - image: images/promo-flash.svg - -- title: Adaptable - text: | - RocksDB is adaptable to different workloads. From database storage engines such as [MyRocks](https://github.com/facebook/mysql-5.6) to [application data caching](http://techblog.netflix.com/2016/05/application-data-caching-using-ssds.html) to embedded workloads, RocksDB can be used for a variety of data needs. - image: images/promo-adapt.svg - -- title: Basic and Advanced Database Operations - text: | - RocksDB provides basic operations such as opening and closing a database, reading and writing to more advanced operations such as merging and compaction filters. - image: images/promo-operations.svg http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_data/nav.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_data/nav.yml b/thirdparty/rocksdb/docs/_data/nav.yml deleted file mode 100644 index 108de02..0000000 --- a/thirdparty/rocksdb/docs/_data/nav.yml +++ /dev/null @@ -1,30 +0,0 @@ -- title: Docs - href: /docs/ - category: docs - -- title: GitHub - href: https://github.com/facebook/rocksdb/ - category: external - -- title: API (C++) - href: https://github.com/facebook/rocksdb/tree/master/include/rocksdb - category: external - -- title: API (Java) - href: https://github.com/facebook/rocksdb/tree/master/java/src/main/java/org/rocksdb - category: external - -- title: Support - href: /support.html - category: support - -- title: Blog - href: /blog/ - category: blog - -- title: Facebook - href: https://www.facebook.com/groups/rocksdb.dev/ - category: external - -# Use external for external links not associated with the paths of the current site. -# If a category is external, site urls, for example, are not prepended to the href, etc.. http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_data/nav_docs.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_data/nav_docs.yml b/thirdparty/rocksdb/docs/_data/nav_docs.yml deleted file mode 100644 index 8cdfd2d..0000000 --- a/thirdparty/rocksdb/docs/_data/nav_docs.yml +++ /dev/null @@ -1,3 +0,0 @@ -- title: Quick Start - items: - - id: getting-started http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_data/powered_by.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_data/powered_by.yml b/thirdparty/rocksdb/docs/_data/powered_by.yml deleted file mode 100644 index a780cfe..0000000 --- a/thirdparty/rocksdb/docs/_data/powered_by.yml +++ /dev/null @@ -1 +0,0 @@ -# Fill in later if desired http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_data/powered_by_highlight.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_data/powered_by_highlight.yml b/thirdparty/rocksdb/docs/_data/powered_by_highlight.yml deleted file mode 100644 index a780cfe..0000000 --- a/thirdparty/rocksdb/docs/_data/powered_by_highlight.yml +++ /dev/null @@ -1 +0,0 @@ -# Fill in later if desired http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_data/promo.yml ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_data/promo.yml b/thirdparty/rocksdb/docs/_data/promo.yml deleted file mode 100644 index 9a72aa8..0000000 --- a/thirdparty/rocksdb/docs/_data/promo.yml +++ /dev/null @@ -1,6 +0,0 @@ -# This file determines the list of promotional elements added to the header of \ -# your site's homepage. Full list of plugins are shown - -- type: button - href: docs/getting-started.html - text: Get Started http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_docs/faq.md ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_docs/faq.md b/thirdparty/rocksdb/docs/_docs/faq.md deleted file mode 100644 index 0887a09..0000000 --- a/thirdparty/rocksdb/docs/_docs/faq.md +++ /dev/null @@ -1,48 +0,0 @@ ---- -docid: support-faq -title: FAQ -layout: docs -permalink: /docs/support/faq.html ---- - -Here is an ever-growing list of frequently asked questions around RocksDB - -## What is RocksDB? - -RocksDB is an embeddable persistent key-value store for fast storage. RocksDB can also be the foundation for a client-server database but our current focus is on embedded workloads. - -RocksDB builds on [LevelDB](https://code.google.com/p/leveldb/) to be scalable to run on servers with many CPU cores, to efficiently use fast storage, to support IO-bound, in-memory and write-once workloads, and to be flexible to allow for innovation. - -For the latest details, watch [Mark Callaghanâs and Igor Canadiâs talk at CMU on 10/2015](https://scs.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=f4e0eb37-ae18-468f-9248-cb73edad3e56). [Dhruba Borthakurâs introductory talk](https://github.com/facebook/rocksdb/blob/gh-pages-old/intro.pdf?raw=true) from the Data @ Scale 2013 conference provides some perspective about how RocksDB has evolved. - -## How does performance compare? - -We benchmarked LevelDB and found that it was unsuitable for our server workloads. The [benchmark results](http://leveldb.googlecode.com/svn/trunk/doc/benchmark.html) look awesome at first sight, but we quickly realized that those results were for a database whose size was smaller than the size of RAM on the test machine â where the entire database could fit in the OS page cache. When we performed the same benchmarks on a database that was at least 5 times larger than main memory, the performance results were dismal. - -By contrast, weâve published the [RocksDB benchmark results](https://github.com/facebook/rocksdb/wiki/Performance-Benchmarks) for server side workloads on Flash. We also measured the performance of LevelDB on these server-workload benchmarks and found that RocksDB solidly outperforms LevelDB for these IO bound workloads. We found that LevelDBâs single-threaded compaction process was insufficient to drive server workloads. We saw frequent write-stalls with LevelDB that caused 99-percentile latency to be tremendously large. We found that mmap-ing a file into the OS cache introduced performance bottlenecks for reads. We could not make LevelDB consume all the IOs offered by the underlying Flash storage. - -## What is RocksDB suitable for? - -RocksDB can be used by applications that need low latency database accesses. Possibilities include: - -* A user-facing application that stores the viewing history and state of users of a website. -* A spam detection application that needs fast access to big data sets. -* A graph-search query that needs to scan a data set in realtime. -* A cache data from Hadoop, thereby allowing applications to query Hadoop data in realtime. -* A message-queue that supports a high number of inserts and deletes. - -## How big is RocksDB adoption? - -RocksDB is an embedded storage engine that is used in a number of backend systems at Facebook. In the Facebook newsfeedâs backend, it replaced another internal storage engine called Centrifuge and is one of the many components used. ZippyDB, a distributed key value store service used by Facebook products relies RocksDB. Details on ZippyDB are in [Muthu Annamalaiâs talk at Data@Scale in Seattle](https://youtu.be/DfiN7pG0D0k). Dragon, a distributed graph query engine part of the social graph infrastructure, is using RocksDB to store data. Parse has been running [MongoDB on RocksDB in production](http://blog.parse.com/announcements/mongodb-rocksdb-parse/) since early 2015. - -RocksDB is proving to be a useful component for a lot of other groups in the industry. For a list of projects currently using RocksDB, take a look at our USERS.md list on github. - -## How good is RocksDB as a database storage engine? - -Our engineering team at Facebook firmly believes that RocksDB has great potential as storage engine for databases. It has been proven in production with MongoDB: [MongoRocks](https://github.com/mongodb-partners/mongo-rocks) is the RocksDB based storage engine for MongoDB. - -[MyRocks](https://code.facebook.com/posts/190251048047090/myrocks-a-space-and-write-optimized-mysql-database/) is the RocksDB based storage engine for MySQL. Using RocksDB we have managed to achieve 2x better compression and 10x less write amplification for our benchmarks compared to our existing MySQL setup. Given our current results, work is currently underway to develop MyRocks into a production ready solution for web-scale MySQL workloads. Follow along on [GitHub](https://github.com/facebook/mysql-5.6)! - -## Why is RocksDB open sourced? - -We are open sourcing this project on [GitHub](http://github.com/facebook/rocksdb) because we think it will be useful beyond Facebook. We are hoping that software programmers and database developers will use, enhance, and customize RocksDB for their use-cases. We would also like to engage with the academic community on topics related to efficiency for modern database algorithms. http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_docs/getting-started.md ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_docs/getting-started.md b/thirdparty/rocksdb/docs/_docs/getting-started.md deleted file mode 100644 index 8b01dfe..0000000 --- a/thirdparty/rocksdb/docs/_docs/getting-started.md +++ /dev/null @@ -1,78 +0,0 @@ ---- -docid: getting-started -title: Getting started -layout: docs -permalink: /docs/getting-started.html ---- - -## Overview - -The RocksDB library provides a persistent key value store. Keys and values are arbitrary byte arrays. The keys are ordered within the key value store according to a user-specified comparator function. - -The library is maintained by the Facebook Database Engineering Team, and is based on [LevelDB](https://github.com/google/leveldb), by Sanjay Ghemawat and Jeff Dean at Google. - -This overview gives some simple examples of how RocksDB is used. For the story of why RocksDB was created in the first place, see [Dhruba Borthakurâs introductory talk](https://github.com/facebook/rocksdb/blob/gh-pages-old/intro.pdf?raw=true) from the Data @ Scale 2013 conference. - -## Opening A Database - -A rocksdb database has a name which corresponds to a file system directory. All of the contents of database are stored in this directory. The following example shows how to open a database, creating it if necessary: - -```c++ -#include <assert> -#include "rocksdb/db.h" - -rocksdb::DB* db; -rocksdb::Options options; -options.create_if_missing = true; -rocksdb::Status status = - rocksdb::DB::Open(options, "/tmp/testdb", &db); -assert(status.ok()); -... -``` - -If you want to raise an error if the database already exists, add the following line before the rocksdb::DB::Open call: - -```c++ -options.error_if_exists = true; -``` - -## Status - -You may have noticed the `rocksdb::Status` type above. Values of this type are returned by most functions in RocksDB that may encounter -an error. You can check if such a result is ok, and also print an associated error message: - -```c++ -rocksdb::Status s = ...; -if (!s.ok()) cerr << s.ToString() << endl; -``` - -## Closing A Database - -When you are done with a database, just delete the database object. For example: - -```c++ -/* open the db as described above */ -/* do something with db */ -delete db; -``` - -## Reads And Writes - -The database provides Put, Delete, and Get methods to modify/query the database. For example, the following code moves the value stored under `key1` to `key2`. - -```c++ -std::string value; -rocksdb::Status s = db->Get(rocksdb::ReadOptions(), key1, &value); -if (s.ok()) s = db->Put(rocksdb::WriteOptions(), key2, value); -if (s.ok()) s = db->Delete(rocksdb::WriteOptions(), key1); -``` - -## Further documentation - -These are just simple examples of how RocksDB is used. The full documentation is currently on the [GitHub wiki](https://github.com/facebook/rocksdb/wiki). - -Here are some specific details about the RocksDB implementation: - -- [Architecture Guide](https://github.com/facebook/rocksdb/wiki/Rocksdb-Architecture-Guide) -- [Format of an immutable Table file](https://github.com/facebook/rocksdb/wiki/Rocksdb-Table-Format) -- [Format of a log file](https://github.com/facebook/rocksdb/wiki/Write-Ahead-Log-File-Format) http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_includes/blog_pagination.html ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_includes/blog_pagination.html b/thirdparty/rocksdb/docs/_includes/blog_pagination.html deleted file mode 100644 index 6a1f334..0000000 --- a/thirdparty/rocksdb/docs/_includes/blog_pagination.html +++ /dev/null @@ -1,28 +0,0 @@ -<!-- Pagination links - copied from http://jekyllrb.com/docs/pagination/ --> -{% if paginator.total_pages > 1 %} -<br /> -<div class="pagination"> - {% if paginator.previous_page %} - <a href="{{ paginator.previous_page_path | replace: '//', '/' }}">« Prev</a> - {% else %} - <span>« Prev</span> - {% endif %} - - {% for page in (1..paginator.total_pages) %} - {% if page == paginator.page %} - <em>{{ page }}</em> - {% elsif page == 1 %} - <a href="{{ '/blog' }}">{{ page }}</a> - {% else %} - <a href="{{ site.paginate_path | replace: '//', '/' | replace: ':num', page }}">{{ page }}</a> - {% endif %} - {% endfor %} - - {% if paginator.next_page %} - <a href="{{ paginator.next_page_path | replace: '//', '/' }}">Next »</a> - {% else %} - <span>Next »</span> - {% endif %} -</div> -<br /> -{% endif %} http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_includes/content/gridblocks.html ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_includes/content/gridblocks.html b/thirdparty/rocksdb/docs/_includes/content/gridblocks.html deleted file mode 100644 index 49c5e59..0000000 --- a/thirdparty/rocksdb/docs/_includes/content/gridblocks.html +++ /dev/null @@ -1,5 +0,0 @@ -<div class="gridBlock"> -{% for item in {{include.data_source}} %} - {% include content/items/gridblock.html item=item layout=include.layout imagealign=include.imagealign align=include.align %} -{% endfor %} -</div> \ No newline at end of file http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/d3a13a49/thirdparty/rocksdb/docs/_includes/content/items/gridblock.html ---------------------------------------------------------------------- diff --git a/thirdparty/rocksdb/docs/_includes/content/items/gridblock.html b/thirdparty/rocksdb/docs/_includes/content/items/gridblock.html deleted file mode 100644 index 58c9e7f..0000000 --- a/thirdparty/rocksdb/docs/_includes/content/items/gridblock.html +++ /dev/null @@ -1,37 +0,0 @@ -{% if include.layout == "fourColumn" %} - {% assign layout = "fourByGridBlock" %} -{% else %} - {% assign layout = "twoByGridBlock" %} -{% endif %} - -{% if include.imagealign == "side" %} - {% assign imagealign = "imageAlignSide" %} -{% else %} - {% if item.image %} - {% assign imagealign = "imageAlignTop" %} - {% else %} - {% assign imagealign = "" %} - {% endif %} -{% endif %} - -{% if include.align == "right" %} - {% assign align = "alignRight" %} -{% elsif include.align == "center" %} - {% assign align = "alignCenter" %} -{% else %} - {% assign align = "alignLeft" %} -{% endif %} - -<div class="blockElement {{ layout }} {{ imagealign }} {{ align }}"> - {% if item.image %} - <div class="blockImage"> - <img src="/static/{{ item.image }}" alt="{{ item.title }}" title="{{ item.title }}" /> - </div> - {% endif %} - <div class="blockContent"> - <h3>{{ item.title }}</h3> - {% if item.text %} - {{ item.text | markdownify }} - {% endif %} - </div> -</div>
