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# Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file. See the AUTHORS file for names of contributors.
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# Inherit some settings from environment variables, if available
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INSTALL_PATH ?= $(CURDIR)
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#-----------------------------------------------
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ifneq ($(MAKECMDGOALS),dbg)
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OPT += -O2 -fno-omit-frame-pointer -momit-leaf-frame-pointer
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else
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# intentionally left blank
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endif
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ifeq ($(MAKECMDGOALS),shared_lib)
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PLATFORM_SHARED_LDFLAGS=-fPIC
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OPT += -DNDEBUG
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endif
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ifeq ($(MAKECMDGOALS),static_lib)
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PLATFORM_SHARED_LDFLAGS=-fPIC
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OPT += -DNDEBUG
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endif
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#-----------------------------------------------
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# detect what platform we're building on
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$(shell (export ROCKSDB_ROOT=$(CURDIR); $(CURDIR)/build_tools/build_detect_platform $(CURDIR)/build_config.mk))
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# this file is generated by the previous line to set build flags and sources
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include build_config.mk
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ifneq ($(PLATFORM), IOS)
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CFLAGS += -g
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CXXFLAGS += -g
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else
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# no debug info for IOS, that will make our library big
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OPT += -DNDEBUG
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endif
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# ASAN doesn't work well with jemalloc. If we're compiling with ASAN, we should use regular malloc.
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ifdef COMPILE_WITH_ASAN
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# ASAN compile flags
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EXEC_LDFLAGS += -fsanitize=address
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PLATFORM_CCFLAGS += -fsanitize=address
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PLATFORM_CXXFLAGS += -fsanitize=address
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else
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# if we're not compiling with ASAN, use jemalloc
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EXEC_LDFLAGS := $(JEMALLOC_LIB) $(EXEC_LDFLAGS)
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PLATFORM_CXXFLAGS += $(JEMALLOC_INCLUDE) -DHAVE_JEMALLOC
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PLATFORM_CCFLAGS += $(JEMALLOC_INCLUDE) -DHAVE_JEMALLOC
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endif
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WARNING_FLAGS = -Wall -Werror -Wno-sign-compare
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CFLAGS += $(WARNING_FLAGS) -I. -I./include $(PLATFORM_CCFLAGS) $(OPT)
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CXXFLAGS += $(WARNING_FLAGS) -I. -I./include $(PLATFORM_CXXFLAGS) $(OPT) -Woverloaded-virtual
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LDFLAGS += $(PLATFORM_LDFLAGS)
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LIBOBJECTS = $(SOURCES:.cc=.o)
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LIBOBJECTS += $(SOURCESCPP:.cpp=.o)
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MEMENVOBJECTS = $(MEMENV_SOURCES:.cc=.o)
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TESTUTIL = ./util/testutil.o
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TESTHARNESS = ./util/testharness.o $(TESTUTIL)
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BENCHHARNESS = ./util/benchharness.o
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VALGRIND_ERROR = 2
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VALGRIND_DIR = build_tools/VALGRIND_LOGS
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VALGRIND_VER := $(join $(VALGRIND_VER),valgrind)
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VALGRIND_OPTS = --error-exitcode=$(VALGRIND_ERROR) --leak-check=full
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TESTS = \
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db_test \
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block_hash_index_test \
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autovector_test \
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column_family_test \
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table_properties_collector_test \
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arena_test \
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auto_roll_logger_test \
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benchharness_test \
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block_test \
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bloom_test \
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dynamic_bloom_test \
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c_test \
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cache_test \
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coding_test \
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corruption_test \
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crc32c_test \
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dbformat_test \
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env_test \
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blob_store_test \
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filelock_test \
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filename_test \
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filter_block_test \
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histogram_test \
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log_test \
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manual_compaction_test \
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memenv_test \
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merge_test \
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redis_test \
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reduce_levels_test \
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plain_table_db_test \
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prefix_test \
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simple_table_db_test \
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skiplist_test \
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stringappend_test \
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Timestamp and TTL Wrapper for rocksdb
Summary:
When opened with DBTimestamp::Open call, timestamps are prepended to and stripped from the value during subsequent Put and Get calls respectively. The Timestamp is used to discard values in Get and custom compaction filter which have exceeded their TTL which is specified during Open.
Have made a temporary change to Makefile to let us test with the temporary file TestTime.cc. Have also changed the private members of db_impl.h to protected to let them be inherited by the new class DBTimestamp
Test Plan: make db_timestamp; TestTime.cc(will not check it in) shows how to use the apis currently, but I will write unit-tests shortly
Reviewers: dhruba, vamsi, haobo, sheki, heyongqiang, vkrest
Reviewed By: vamsi
CC: zshao, xjin, vkrest, MarkCallaghan
Differential Revision: https://reviews.facebook.net/D10311
12 years ago
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ttl_test \
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[RocksDB] BackupableDB
Summary:
In this diff I present you BackupableDB v1. You can easily use it to backup your DB and it will do incremental snapshots for you.
Let's first describe how you would use BackupableDB. It's inheriting StackableDB interface so you can easily construct it with your DB object -- it will add a method RollTheSnapshot() to the DB object. When you call RollTheSnapshot(), current snapshot of the DB will be stored in the backup dir. To restore, you can just call RestoreDBFromBackup() on a BackupableDB (which is a static method) and it will restore all files from the backup dir. In the next version, it will even support automatic backuping every X minutes.
There are multiple things you can configure:
1. backup_env and db_env can be different, which is awesome because then you can easily backup to HDFS or wherever you feel like.
2. sync - if true, it *guarantees* backup consistency on machine reboot
3. number of snapshots to keep - this will keep last N snapshots around if you want, for some reason, be able to restore from an earlier snapshot. All the backuping is done in incremental fashion - if we already have 00010.sst, we will not copy it again. *IMPORTANT* -- This is based on assumption that 00010.sst never changes - two files named 00010.sst from the same DB will always be exactly the same. Is this true? I always copy manifest, current and log files.
4. You can decide if you want to flush the memtables before you backup, or you're fine with backing up the log files -- either way, you get a complete and consistent view of the database at a time of backup.
5. More things you can find in BackupableDBOptions
Here is the directory structure I use:
backup_dir/CURRENT_SNAPSHOT - just 4 bytes holding the latest snapshot
0, 1, 2, ... - files containing serialized version of each snapshot - containing a list of files
files/*.sst - sst files shared between snapshots - if one snapshot references 00010.sst and another one needs to backup it from the DB, it will just reference the same file
files/ 0/, 1/, 2/, ... - snapshot directories containing private snapshot files - current, manifest and log files
All the files are ref counted and deleted immediatelly when they get out of scope.
Some other stuff in this diff:
1. Added GetEnv() method to the DB. Discussed with @haobo and we agreed that it seems right thing to do.
2. Fixed StackableDB interface. The way it was set up before, I was not able to implement BackupableDB.
Test Plan:
I have a unittest, but please don't look at this yet. I just hacked it up to help me with debugging. I will write a lot of good tests and update the diff.
Also, `make asan_check`
Reviewers: dhruba, haobo, emayanke
Reviewed By: dhruba
CC: leveldb, haobo
Differential Revision: https://reviews.facebook.net/D14295
11 years ago
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backupable_db_test \
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version_edit_test \
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version_set_test \
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hints for narrowing down FindFile range and avoiding checking unrelevant L0 files
Summary:
The file tree structure in Version is prebuilt and the range of each file is known.
On the Get() code path, we do binary search in FindFile() by comparing
target key with each file's largest key and also check the range for each L0 file.
With some pre-calculated knowledge, each key comparision that has been done can serve
as a hint to narrow down further searches:
(1) If a key falls within a L0 file's range, we can safely skip the next
file if its range does not overlap with the current one.
(2) If a key falls within a file's range in level L0 - Ln-1, we should only
need to binary search in the next level for files that overlap with the current one.
(1) will be able to skip some files depending one the key distribution.
(2) can greatly reduce the range of binary search, especially for bottom
levels, given that one file most likely only overlaps with N files from
the level below (where N is max_bytes_for_level_multiplier). So on level
L, we will only look at ~N files instead of N^L files.
Some inital results: measured with 500M key DB, when write is light (10k/s = 1.2M/s), this
improves QPS ~7% on top of blocked bloom. When write is heavier (80k/s =
9.6M/s), it gives us ~13% improvement.
Test Plan: make all check
Reviewers: haobo, igor, dhruba, sdong, yhchiang
Reviewed By: haobo
CC: leveldb
Differential Revision: https://reviews.facebook.net/D17205
11 years ago
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file_indexer_test \
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write_batch_test\
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deletefile_test \
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table_test \
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thread_local_test \
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geodb_test
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TOOLS = \
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sst_dump \
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db_sanity_test \
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db_stress \
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ldb \
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db_repl_stress \
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blob_store_bench
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PROGRAMS = db_bench signal_test table_reader_bench $(TOOLS)
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# The library name is configurable since we are maintaining libraries of both
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# debug/release mode.
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ifeq ($(LIBNAME),)
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LIBNAME=librocksdb
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endif
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LIBRARY = ${LIBNAME}.a
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MEMENVLIBRARY = libmemenv.a
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default: all
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#-----------------------------------------------
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# Create platform independent shared libraries.
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#-----------------------------------------------
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ifneq ($(PLATFORM_SHARED_EXT),)
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ifneq ($(PLATFORM_SHARED_VERSIONED),true)
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SHARED1 = ${LIBNAME}.$(PLATFORM_SHARED_EXT)
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SHARED2 = $(SHARED1)
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SHARED3 = $(SHARED1)
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SHARED = $(SHARED1)
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else
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# Update db.h if you change these.
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SHARED_MAJOR = 2
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SHARED_MINOR = 0
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SHARED1 = ${LIBNAME}.$(PLATFORM_SHARED_EXT)
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SHARED2 = $(SHARED1).$(SHARED_MAJOR)
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SHARED3 = $(SHARED1).$(SHARED_MAJOR).$(SHARED_MINOR)
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SHARED = $(SHARED1) $(SHARED2) $(SHARED3)
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$(SHARED1): $(SHARED3)
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ln -fs $(SHARED3) $(SHARED1)
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$(SHARED2): $(SHARED3)
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ln -fs $(SHARED3) $(SHARED2)
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endif
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$(SHARED3):
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$(CXX) $(PLATFORM_SHARED_LDFLAGS)$(SHARED2) $(CXXFLAGS) $(PLATFORM_SHARED_CFLAGS) $(LDFLAGS) $(SOURCES) -o $@
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endif # PLATFORM_SHARED_EXT
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.PHONY: blackbox_crash_test check clean coverage crash_test ldb_tests \
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release tags valgrind_check whitebox_crash_test format static_lib shared_lib all \
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dbg
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all: $(LIBRARY) $(PROGRAMS) $(TESTS)
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static_lib: $(LIBRARY)
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shared_lib: $(SHARED)
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dbg: $(LIBRARY) $(PROGRAMS) $(TESTS)
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# creates static library and programs
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release:
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$(MAKE) clean
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OPT="-DNDEBUG -O2" $(MAKE) static_lib $(PROGRAMS) -j32
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coverage:
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$(MAKE) clean
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COVERAGEFLAGS="-fprofile-arcs -ftest-coverage" LDFLAGS+="-lgcov" $(MAKE) all check -j32
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(cd coverage; ./coverage_test.sh)
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# Delete intermediate files
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find . -type f -regex ".*\.\(\(gcda\)\|\(gcno\)\)" -exec rm {} \;
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check: $(PROGRAMS) $(TESTS) $(TOOLS)
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for t in $(TESTS); do echo "***** Running $$t"; ./$$t || exit 1; done
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python tools/ldb_test.py
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ldb_tests: all $(PROGRAMS) $(TESTS) $(TOOLS)
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python tools/ldb_test.py
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crash_test: blackbox_crash_test whitebox_crash_test
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blackbox_crash_test: db_stress
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python -u tools/db_crashtest.py
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whitebox_crash_test: db_stress
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python -u tools/db_crashtest2.py
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asan_check:
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$(MAKE) clean
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COMPILE_WITH_ASAN=1 $(MAKE) check -j32
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$(MAKE) clean
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asan_crash_test:
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$(MAKE) clean
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COMPILE_WITH_ASAN=1 $(MAKE) crash_test -j32
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$(MAKE) clean
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valgrind_check: all $(PROGRAMS) $(TESTS)
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mkdir -p $(VALGRIND_DIR)
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echo TESTS THAT HAVE VALGRIND ERRORS > $(VALGRIND_DIR)/valgrind_failed_tests; \
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echo TIMES in seconds TAKEN BY TESTS ON VALGRIND > $(VALGRIND_DIR)/valgrind_tests_times; \
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for t in $(filter-out skiplist_test,$(TESTS)); do \
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stime=`date '+%s'`; \
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$(VALGRIND_VER) $(VALGRIND_OPTS) ./$$t; \
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if [ $$? -eq $(VALGRIND_ERROR) ] ; then \
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echo $$t >> $(VALGRIND_DIR)/valgrind_failed_tests; \
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fi; \
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etime=`date '+%s'`; \
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echo $$t $$((etime - stime)) >> $(VALGRIND_DIR)/valgrind_tests_times; \
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done
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clean:
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-rm -f $(PROGRAMS) $(TESTS) $(LIBRARY) $(SHARED) $(MEMENVLIBRARY) build_config.mk
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-rm -rf ios-x86/* ios-arm/*
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-find . -name "*.[od]" -exec rm {} \;
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-find . -type f -regex ".*\.\(\(gcda\)\|\(gcno\)\)" -exec rm {} \;
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tags:
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ctags * -R
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cscope -b `find . -name '*.cc'` `find . -name '*.h'`
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format:
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build_tools/format-diff.sh
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# ---------------------------------------------------------------------------
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# Unit tests and tools
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# ---------------------------------------------------------------------------
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$(LIBRARY): $(LIBOBJECTS)
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rm -f $@
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$(AR) -rs $@ $(LIBOBJECTS)
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db_bench: db/db_bench.o $(LIBOBJECTS) $(TESTUTIL)
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$(CXX) db/db_bench.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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block_hash_index_test: table/block_hash_index_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) table/block_hash_index_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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db_stress: tools/db_stress.o $(LIBOBJECTS) $(TESTUTIL)
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$(CXX) tools/db_stress.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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db_sanity_test: tools/db_sanity_test.o $(LIBOBJECTS) $(TESTUTIL)
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$(CXX) tools/db_sanity_test.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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db_repl_stress: tools/db_repl_stress.o $(LIBOBJECTS) $(TESTUTIL)
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$(CXX) tools/db_repl_stress.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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blob_store_bench: tools/blob_store_bench.o $(LIBOBJECTS) $(TESTUTIL)
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$(CXX) tools/blob_store_bench.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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signal_test: util/signal_test.o $(LIBOBJECTS)
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$(CXX) util/signal_test.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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arena_test: util/arena_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/arena_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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autovector_test: util/autovector_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/autovector_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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column_family_test: db/column_family_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/column_family_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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table_properties_collector_test: db/table_properties_collector_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/table_properties_collector_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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bloom_test: util/bloom_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/bloom_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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dynamic_bloom_test: util/dynamic_bloom_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/dynamic_bloom_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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c_test: db/c_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/c_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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cache_test: util/cache_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/cache_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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coding_test: util/coding_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/coding_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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blob_store_test: util/blob_store_test.o $(LIBOBJECTS) $(TESTHARNESS) $(TESTUTIL)
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$(CXX) util/blob_store_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o$@ $(LDFLAGS) $(COVERAGEFLAGS)
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stringappend_test: utilities/merge_operators/string_append/stringappend_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) utilities/merge_operators/string_append/stringappend_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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redis_test: utilities/redis/redis_lists_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) utilities/redis/redis_lists_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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benchharness_test: util/benchharness_test.o $(LIBOBJECTS) $(TESTHARNESS) $(BENCHHARNESS)
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$(CXX) util/benchharness_test.o $(LIBOBJECTS) $(TESTHARNESS) $(BENCHHARNESS) $(EXEC_LDFLAGS) -o$@ $(LDFLAGS) $(COVERAGEFLAGS)
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histogram_test: util/histogram_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/histogram_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o$@ $(LDFLAGS) $(COVERAGEFLAGS)
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thread_local_test: util/thread_local_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/thread_local_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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corruption_test: db/corruption_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/corruption_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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crc32c_test: util/crc32c_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/crc32c_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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db_test: db/db_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/db_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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log_write_bench: util/log_write_bench.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/log_write_bench.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS) -pg
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plain_table_db_test: db/plain_table_db_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/plain_table_db_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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simple_table_db_test: db/simple_table_db_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/simple_table_db_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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table_reader_bench: table/table_reader_bench.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) table/table_reader_bench.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS) -pg
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perf_context_test: db/perf_context_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/perf_context_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS)
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prefix_test: db/prefix_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/prefix_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS)
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[RocksDB] BackupableDB
Summary:
In this diff I present you BackupableDB v1. You can easily use it to backup your DB and it will do incremental snapshots for you.
Let's first describe how you would use BackupableDB. It's inheriting StackableDB interface so you can easily construct it with your DB object -- it will add a method RollTheSnapshot() to the DB object. When you call RollTheSnapshot(), current snapshot of the DB will be stored in the backup dir. To restore, you can just call RestoreDBFromBackup() on a BackupableDB (which is a static method) and it will restore all files from the backup dir. In the next version, it will even support automatic backuping every X minutes.
There are multiple things you can configure:
1. backup_env and db_env can be different, which is awesome because then you can easily backup to HDFS or wherever you feel like.
2. sync - if true, it *guarantees* backup consistency on machine reboot
3. number of snapshots to keep - this will keep last N snapshots around if you want, for some reason, be able to restore from an earlier snapshot. All the backuping is done in incremental fashion - if we already have 00010.sst, we will not copy it again. *IMPORTANT* -- This is based on assumption that 00010.sst never changes - two files named 00010.sst from the same DB will always be exactly the same. Is this true? I always copy manifest, current and log files.
4. You can decide if you want to flush the memtables before you backup, or you're fine with backing up the log files -- either way, you get a complete and consistent view of the database at a time of backup.
5. More things you can find in BackupableDBOptions
Here is the directory structure I use:
backup_dir/CURRENT_SNAPSHOT - just 4 bytes holding the latest snapshot
0, 1, 2, ... - files containing serialized version of each snapshot - containing a list of files
files/*.sst - sst files shared between snapshots - if one snapshot references 00010.sst and another one needs to backup it from the DB, it will just reference the same file
files/ 0/, 1/, 2/, ... - snapshot directories containing private snapshot files - current, manifest and log files
All the files are ref counted and deleted immediatelly when they get out of scope.
Some other stuff in this diff:
1. Added GetEnv() method to the DB. Discussed with @haobo and we agreed that it seems right thing to do.
2. Fixed StackableDB interface. The way it was set up before, I was not able to implement BackupableDB.
Test Plan:
I have a unittest, but please don't look at this yet. I just hacked it up to help me with debugging. I will write a lot of good tests and update the diff.
Also, `make asan_check`
Reviewers: dhruba, haobo, emayanke
Reviewed By: dhruba
CC: leveldb, haobo
Differential Revision: https://reviews.facebook.net/D14295
11 years ago
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backupable_db_test: utilities/backupable/backupable_db_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) utilities/backupable/backupable_db_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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Timestamp and TTL Wrapper for rocksdb
Summary:
When opened with DBTimestamp::Open call, timestamps are prepended to and stripped from the value during subsequent Put and Get calls respectively. The Timestamp is used to discard values in Get and custom compaction filter which have exceeded their TTL which is specified during Open.
Have made a temporary change to Makefile to let us test with the temporary file TestTime.cc. Have also changed the private members of db_impl.h to protected to let them be inherited by the new class DBTimestamp
Test Plan: make db_timestamp; TestTime.cc(will not check it in) shows how to use the apis currently, but I will write unit-tests shortly
Reviewers: dhruba, vamsi, haobo, sheki, heyongqiang, vkrest
Reviewed By: vamsi
CC: zshao, xjin, vkrest, MarkCallaghan
Differential Revision: https://reviews.facebook.net/D10311
12 years ago
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ttl_test: utilities/ttl/ttl_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) utilities/ttl/ttl_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
|
Timestamp and TTL Wrapper for rocksdb
Summary:
When opened with DBTimestamp::Open call, timestamps are prepended to and stripped from the value during subsequent Put and Get calls respectively. The Timestamp is used to discard values in Get and custom compaction filter which have exceeded their TTL which is specified during Open.
Have made a temporary change to Makefile to let us test with the temporary file TestTime.cc. Have also changed the private members of db_impl.h to protected to let them be inherited by the new class DBTimestamp
Test Plan: make db_timestamp; TestTime.cc(will not check it in) shows how to use the apis currently, but I will write unit-tests shortly
Reviewers: dhruba, vamsi, haobo, sheki, heyongqiang, vkrest
Reviewed By: vamsi
CC: zshao, xjin, vkrest, MarkCallaghan
Differential Revision: https://reviews.facebook.net/D10311
12 years ago
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dbformat_test: db/dbformat_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/dbformat_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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env_test: util/env_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/env_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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filename_test: db/filename_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/filename_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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filter_block_test: table/filter_block_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) table/filter_block_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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log_test: db/log_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/log_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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table_test: table/table_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) table/table_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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block_test: table/block_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) table/block_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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skiplist_test: db/skiplist_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/skiplist_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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version_edit_test: db/version_edit_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/version_edit_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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version_set_test: db/version_set_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/version_set_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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hints for narrowing down FindFile range and avoiding checking unrelevant L0 files
Summary:
The file tree structure in Version is prebuilt and the range of each file is known.
On the Get() code path, we do binary search in FindFile() by comparing
target key with each file's largest key and also check the range for each L0 file.
With some pre-calculated knowledge, each key comparision that has been done can serve
as a hint to narrow down further searches:
(1) If a key falls within a L0 file's range, we can safely skip the next
file if its range does not overlap with the current one.
(2) If a key falls within a file's range in level L0 - Ln-1, we should only
need to binary search in the next level for files that overlap with the current one.
(1) will be able to skip some files depending one the key distribution.
(2) can greatly reduce the range of binary search, especially for bottom
levels, given that one file most likely only overlaps with N files from
the level below (where N is max_bytes_for_level_multiplier). So on level
L, we will only look at ~N files instead of N^L files.
Some inital results: measured with 500M key DB, when write is light (10k/s = 1.2M/s), this
improves QPS ~7% on top of blocked bloom. When write is heavier (80k/s =
9.6M/s), it gives us ~13% improvement.
Test Plan: make all check
Reviewers: haobo, igor, dhruba, sdong, yhchiang
Reviewed By: haobo
CC: leveldb
Differential Revision: https://reviews.facebook.net/D17205
11 years ago
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file_indexer_test : db/file_indexer_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/file_indexer_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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reduce_levels_test: tools/reduce_levels_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) tools/reduce_levels_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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write_batch_test: db/write_batch_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/write_batch_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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merge_test: db/merge_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/merge_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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deletefile_test: db/deletefile_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) db/deletefile_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS)
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geodb_test: utilities/geodb/geodb_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) utilities/geodb/geodb_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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$(MEMENVLIBRARY) : $(MEMENVOBJECTS)
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rm -f $@
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$(AR) -rs $@ $(MEMENVOBJECTS)
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memenv_test : helpers/memenv/memenv_test.o $(MEMENVOBJECTS) $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) helpers/memenv/memenv_test.o $(MEMENVOBJECTS) $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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manual_compaction_test: util/manual_compaction_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/manual_compaction_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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rocksdb_shell: tools/shell/ShellContext.o tools/shell/ShellState.o tools/shell/LeveldbShell.o tools/shell/DBClientProxy.o tools/shell/ShellContext.h tools/shell/ShellState.h tools/shell/DBClientProxy.h $(LIBOBJECTS)
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$(CXX) tools/shell/ShellContext.o tools/shell/ShellState.o tools/shell/LeveldbShell.o tools/shell/DBClientProxy.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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DBClientProxy_test: tools/shell/test/DBClientProxyTest.o tools/shell/DBClientProxy.o $(LIBRARY)
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$(CXX) tools/shell/test/DBClientProxyTest.o tools/shell/DBClientProxy.o $(LIBRARY) $(EXEC_LDFLAGS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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filelock_test: util/filelock_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/filelock_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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auto_roll_logger_test: util/auto_roll_logger_test.o $(LIBOBJECTS) $(TESTHARNESS)
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$(CXX) util/auto_roll_logger_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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sst_dump: tools/sst_dump.o $(LIBOBJECTS)
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$(CXX) tools/sst_dump.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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ldb: tools/ldb.o $(LIBOBJECTS)
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$(CXX) tools/ldb.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
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|
Add a jni library for rocksdb which supports Open, Get, Put, and Close.
Summary:
This diff contains a simple jni library for rocksdb which supports open, get,
put and closeusing default options (including Options, ReadOptions, and
WriteOptions.) In the usual case, Java developers can use the c++ rocksdb
library in the way similar to the following:
RocksDB db = RocksDB.open(path_to_db);
...
db.put("hello".getBytes(), "world".getBytes();
byte[] value = db.get("hello".getBytes());
...
db.close();
Specifically, this diff has the following major classes:
* RocksDB: a Java wrapper class which forwards the operations
from the java side to c++ rocksdb library.
* RocksDBException: ncapsulates the error of an operation.
This exception type is used to describe an internal error from
the c++ rocksdb library.
This diff also include a simple java sample code calling c++ rocksdb library.
To build the rocksdb jni library, simply run make jni, and make jtest will try to
build and run the sample code.
Note that if the rocksdb is not built with the default glibc that Java uses,
java will try to load the wrong glibc during the run time. As a result,
the sample code might not work properly during the run time.
Test Plan:
* make jni
* make jtest
Reviewers: haobo, dhruba, sdong, igor, ljin
Reviewed By: dhruba
CC: leveldb, xjin
Differential Revision: https://reviews.facebook.net/D17109
11 years ago
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# ---------------------------------------------------------------------------
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# Jni stuff
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# ---------------------------------------------------------------------------
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JNI_NATIVE_SOURCES = ./java/rocksjni/*.cc
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JAVA_INCLUDE = -I/usr/lib/jvm/java-openjdk/include/ -I/usr/lib/jvm/java-openjdk/include/linux
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Add a jni library for rocksdb which supports Open, Get, Put, and Close.
Summary:
This diff contains a simple jni library for rocksdb which supports open, get,
put and closeusing default options (including Options, ReadOptions, and
WriteOptions.) In the usual case, Java developers can use the c++ rocksdb
library in the way similar to the following:
RocksDB db = RocksDB.open(path_to_db);
...
db.put("hello".getBytes(), "world".getBytes();
byte[] value = db.get("hello".getBytes());
...
db.close();
Specifically, this diff has the following major classes:
* RocksDB: a Java wrapper class which forwards the operations
from the java side to c++ rocksdb library.
* RocksDBException: ncapsulates the error of an operation.
This exception type is used to describe an internal error from
the c++ rocksdb library.
This diff also include a simple java sample code calling c++ rocksdb library.
To build the rocksdb jni library, simply run make jni, and make jtest will try to
build and run the sample code.
Note that if the rocksdb is not built with the default glibc that Java uses,
java will try to load the wrong glibc during the run time. As a result,
the sample code might not work properly during the run time.
Test Plan:
* make jni
* make jtest
Reviewers: haobo, dhruba, sdong, igor, ljin
Reviewed By: dhruba
CC: leveldb, xjin
Differential Revision: https://reviews.facebook.net/D17109
11 years ago
|
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|
ROCKSDBJNILIB = ./java/librocksdbjni.so
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ifeq ($(PLATFORM), OS_MACOSX)
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ROCKSDBJNILIB = ./java/librocksdbjni.jnilib
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JAVA_INCLUDE = -I/System/Library/Frameworks/JavaVM.framework/Headers/
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endif
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rocksdbjava: clean
|
Add a jni library for rocksdb which supports Open, Get, Put, and Close.
Summary:
This diff contains a simple jni library for rocksdb which supports open, get,
put and closeusing default options (including Options, ReadOptions, and
WriteOptions.) In the usual case, Java developers can use the c++ rocksdb
library in the way similar to the following:
RocksDB db = RocksDB.open(path_to_db);
...
db.put("hello".getBytes(), "world".getBytes();
byte[] value = db.get("hello".getBytes());
...
db.close();
Specifically, this diff has the following major classes:
* RocksDB: a Java wrapper class which forwards the operations
from the java side to c++ rocksdb library.
* RocksDBException: ncapsulates the error of an operation.
This exception type is used to describe an internal error from
the c++ rocksdb library.
This diff also include a simple java sample code calling c++ rocksdb library.
To build the rocksdb jni library, simply run make jni, and make jtest will try to
build and run the sample code.
Note that if the rocksdb is not built with the default glibc that Java uses,
java will try to load the wrong glibc during the run time. As a result,
the sample code might not work properly during the run time.
Test Plan:
* make jni
* make jtest
Reviewers: haobo, dhruba, sdong, igor, ljin
Reviewed By: dhruba
CC: leveldb, xjin
Differential Revision: https://reviews.facebook.net/D17109
11 years ago
|
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|
OPT="-fPIC -DNDEBUG -O2" $(MAKE) $(LIBRARY) -j32
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cd java;$(MAKE) java;
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rm -f $(ROCKSDBJNILIB)
|
Add a jni library for rocksdb which supports Open, Get, Put, and Close.
Summary:
This diff contains a simple jni library for rocksdb which supports open, get,
put and closeusing default options (including Options, ReadOptions, and
WriteOptions.) In the usual case, Java developers can use the c++ rocksdb
library in the way similar to the following:
RocksDB db = RocksDB.open(path_to_db);
...
db.put("hello".getBytes(), "world".getBytes();
byte[] value = db.get("hello".getBytes());
...
db.close();
Specifically, this diff has the following major classes:
* RocksDB: a Java wrapper class which forwards the operations
from the java side to c++ rocksdb library.
* RocksDBException: ncapsulates the error of an operation.
This exception type is used to describe an internal error from
the c++ rocksdb library.
This diff also include a simple java sample code calling c++ rocksdb library.
To build the rocksdb jni library, simply run make jni, and make jtest will try to
build and run the sample code.
Note that if the rocksdb is not built with the default glibc that Java uses,
java will try to load the wrong glibc during the run time. As a result,
the sample code might not work properly during the run time.
Test Plan:
* make jni
* make jtest
Reviewers: haobo, dhruba, sdong, igor, ljin
Reviewed By: dhruba
CC: leveldb, xjin
Differential Revision: https://reviews.facebook.net/D17109
11 years ago
|
|
|
$(CXX) $(CXXFLAGS) -I./java/. $(JAVA_INCLUDE) -shared -fPIC -o $(ROCKSDBJNILIB) $(JNI_NATIVE_SOURCES) $(LIBOBJECTS) $(LDFLAGS) $(COVERAGEFLAGS)
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jclean:
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cd java;$(MAKE) clean;
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rm -f $(ROCKSDBJNILIB)
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jtest:
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cd java;$(MAKE) sample;$(MAKE) test;
|
Add a jni library for rocksdb which supports Open, Get, Put, and Close.
Summary:
This diff contains a simple jni library for rocksdb which supports open, get,
put and closeusing default options (including Options, ReadOptions, and
WriteOptions.) In the usual case, Java developers can use the c++ rocksdb
library in the way similar to the following:
RocksDB db = RocksDB.open(path_to_db);
...
db.put("hello".getBytes(), "world".getBytes();
byte[] value = db.get("hello".getBytes());
...
db.close();
Specifically, this diff has the following major classes:
* RocksDB: a Java wrapper class which forwards the operations
from the java side to c++ rocksdb library.
* RocksDBException: ncapsulates the error of an operation.
This exception type is used to describe an internal error from
the c++ rocksdb library.
This diff also include a simple java sample code calling c++ rocksdb library.
To build the rocksdb jni library, simply run make jni, and make jtest will try to
build and run the sample code.
Note that if the rocksdb is not built with the default glibc that Java uses,
java will try to load the wrong glibc during the run time. As a result,
the sample code might not work properly during the run time.
Test Plan:
* make jni
* make jtest
Reviewers: haobo, dhruba, sdong, igor, ljin
Reviewed By: dhruba
CC: leveldb, xjin
Differential Revision: https://reviews.facebook.net/D17109
11 years ago
|
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jdb_bench:
|
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cd java;$(MAKE) db_bench;
|
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# ---------------------------------------------------------------------------
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# Platform-specific compilation
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# ---------------------------------------------------------------------------
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ifeq ($(PLATFORM), IOS)
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# For iOS, create universal object files to be used on both the simulator and
|
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# a device.
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PLATFORMSROOT=/Applications/Xcode.app/Contents/Developer/Platforms
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SIMULATORROOT=$(PLATFORMSROOT)/iPhoneSimulator.platform/Developer
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DEVICEROOT=$(PLATFORMSROOT)/iPhoneOS.platform/Developer
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IOSVERSION=$(shell defaults read $(PLATFORMSROOT)/iPhoneOS.platform/version CFBundleShortVersionString)
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.cc.o:
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mkdir -p ios-x86/$(dir $@)
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$(CXX) $(CXXFLAGS) -isysroot $(SIMULATORROOT)/SDKs/iPhoneSimulator$(IOSVERSION).sdk -arch i686 -arch x86_64 -c $< -o ios-x86/$@
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mkdir -p ios-arm/$(dir $@)
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xcrun -sdk iphoneos $(CXX) $(CXXFLAGS) -isysroot $(DEVICEROOT)/SDKs/iPhoneOS$(IOSVERSION).sdk -arch armv6 -arch armv7 -arch armv7s -arch arm64 -c $< -o ios-arm/$@
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lipo ios-x86/$@ ios-arm/$@ -create -output $@
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.c.o:
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mkdir -p ios-x86/$(dir $@)
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$(CC) $(CFLAGS) -isysroot $(SIMULATORROOT)/SDKs/iPhoneSimulator$(IOSVERSION).sdk -arch i686 -arch x86_64 -c $< -o ios-x86/$@
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mkdir -p ios-arm/$(dir $@)
|
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xcrun -sdk iphoneos $(CC) $(CFLAGS) -isysroot $(DEVICEROOT)/SDKs/iPhoneOS$(IOSVERSION).sdk -arch armv6 -arch armv7 -arch armv7s -arch arm64 -c $< -o ios-arm/$@
|
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lipo ios-x86/$@ ios-arm/$@ -create -output $@
|
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|
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|
|
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else
|
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.cc.o:
|
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$(CXX) $(CXXFLAGS) -c $< -o $@ $(COVERAGEFLAGS)
|
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.c.o:
|
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|
|
$(CC) $(CFLAGS) -c $< -o $@
|
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|
|
endif
|
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# ---------------------------------------------------------------------------
|
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|
# Source files dependencies detection
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# ---------------------------------------------------------------------------
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# Add proper dependency support so changing a .h file forces a .cc file to
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# rebuild.
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# The .d file indicates .cc file's dependencies on .h files. We generate such
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# dependency by g++'s -MM option, whose output is a make dependency rule.
|
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# The sed command makes sure the "target" file in the generated .d file has
|
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|
# the correct path prefix.
|
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|
|
%.d: %.cc
|
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|
|
|
$(CXX) $(CXXFLAGS) $(PLATFORM_SHARED_CFLAGS) -MM $< -o $@
|
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|
|
|
ifeq ($(PLATFORM), OS_MACOSX)
|
|
|
|
|
@sed -i '' -e 's,.*:,$*.o:,' $@
|
|
|
|
|
else
|
|
|
|
|
@sed -i -e 's,.*:,$*.o:,' $@
|
|
|
|
|
endif
|
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|
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|
DEPFILES = $(filter-out util/build_version.d,$(SOURCES:.cc=.d))
|
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|
|
|
|
|
|
depend: $(DEPFILES)
|
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|
|
|
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|
# if the make goal is either "clean" or "format", we shouldn't
|
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|
|
|
# try to import the *.d files.
|
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|
|
|
# TODO(kailiu) The unfamiliarity of Make's conditions leads to the ugly
|
|
|
|
|
# working solution.
|
|
|
|
|
ifneq ($(MAKECMDGOALS),clean)
|
|
|
|
|
ifneq ($(MAKECMDGOALS),format)
|
Add a jni library for rocksdb which supports Open, Get, Put, and Close.
Summary:
This diff contains a simple jni library for rocksdb which supports open, get,
put and closeusing default options (including Options, ReadOptions, and
WriteOptions.) In the usual case, Java developers can use the c++ rocksdb
library in the way similar to the following:
RocksDB db = RocksDB.open(path_to_db);
...
db.put("hello".getBytes(), "world".getBytes();
byte[] value = db.get("hello".getBytes());
...
db.close();
Specifically, this diff has the following major classes:
* RocksDB: a Java wrapper class which forwards the operations
from the java side to c++ rocksdb library.
* RocksDBException: ncapsulates the error of an operation.
This exception type is used to describe an internal error from
the c++ rocksdb library.
This diff also include a simple java sample code calling c++ rocksdb library.
To build the rocksdb jni library, simply run make jni, and make jtest will try to
build and run the sample code.
Note that if the rocksdb is not built with the default glibc that Java uses,
java will try to load the wrong glibc during the run time. As a result,
the sample code might not work properly during the run time.
Test Plan:
* make jni
* make jtest
Reviewers: haobo, dhruba, sdong, igor, ljin
Reviewed By: dhruba
CC: leveldb, xjin
Differential Revision: https://reviews.facebook.net/D17109
11 years ago
|
|
|
ifneq ($(MAKECMDGOALS),jclean)
|
|
|
|
|
ifneq ($(MAKECMDGOALS),jtest)
|
|
|
|
|
-include $(DEPFILES)
|
|
|
|
|
endif
|
|
|
|
|
endif
|
Add a jni library for rocksdb which supports Open, Get, Put, and Close.
Summary:
This diff contains a simple jni library for rocksdb which supports open, get,
put and closeusing default options (including Options, ReadOptions, and
WriteOptions.) In the usual case, Java developers can use the c++ rocksdb
library in the way similar to the following:
RocksDB db = RocksDB.open(path_to_db);
...
db.put("hello".getBytes(), "world".getBytes();
byte[] value = db.get("hello".getBytes());
...
db.close();
Specifically, this diff has the following major classes:
* RocksDB: a Java wrapper class which forwards the operations
from the java side to c++ rocksdb library.
* RocksDBException: ncapsulates the error of an operation.
This exception type is used to describe an internal error from
the c++ rocksdb library.
This diff also include a simple java sample code calling c++ rocksdb library.
To build the rocksdb jni library, simply run make jni, and make jtest will try to
build and run the sample code.
Note that if the rocksdb is not built with the default glibc that Java uses,
java will try to load the wrong glibc during the run time. As a result,
the sample code might not work properly during the run time.
Test Plan:
* make jni
* make jtest
Reviewers: haobo, dhruba, sdong, igor, ljin
Reviewed By: dhruba
CC: leveldb, xjin
Differential Revision: https://reviews.facebook.net/D17109
11 years ago
|
|
|
endif
|
|
|
|
|
endif
|
