下午编译安装RocksDB后，在使用的时候报错如下：
--> % g++ -std=c++11 -o rocksdbtest test.cpp ./third/rocksdb/librocksdb.a -lpthread
./third/rocksdb/librocksdb.a(format.o): In function `rocksdb::UncompressBlockContentsForCompressionType(char const*, unsigned long, rocksdb::BlockContents*, unsigned int, rocksdb::Slice const&, rocksdb::CompressionType, rocksdb::ImmutableCFOptions const&)':
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:783: undefined reference to `ZSTD_createDCtx'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:784: undefined reference to `ZSTD_decompress_usingDict'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:787: undefined reference to `ZSTD_freeDCtx'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:176: undefined reference to `snappy::GetUncompressedLength(char const*, unsigned long, unsigned long*)'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:319: undefined reference to `inflateInit2_'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:327: undefined reference to `inflateSetDictionary'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:345: undefined reference to `inflate'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:379: undefined reference to `inflateEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:617: undefined reference to `LZ4_createStreamDecode'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:622: undefined reference to `LZ4_decompress_safe_continue'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:625: undefined reference to `LZ4_freeStreamDecode'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:470: undefined reference to `BZ2_bzDecompressInit'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:485: undefined reference to `BZ2_bzDecompress'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:517: undefined reference to `BZ2_bzDecompressEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:617: undefined reference to `LZ4_createStreamDecode'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:622: undefined reference to `LZ4_decompress_safe_continue'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:625: undefined reference to `LZ4_freeStreamDecode'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:509: undefined reference to `BZ2_bzDecompressEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:185: undefined reference to `snappy::RawUncompress(char const*, unsigned long, char*)'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:371: undefined reference to `inflateEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:619: undefined reference to `LZ4_setStreamDecode'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:619: undefined reference to `LZ4_setStreamDecode'
./third/rocksdb/librocksdb.a(options_helper.o): In function `rocksdb::GetSupportedCompressions()':
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:88: undefined reference to `ZSTD_versionNumber'
./third/rocksdb/librocksdb.a(column_family.o): In function `rocksdb::CheckCompressionSupported(rocksdb::ColumnFamilyOptions const&)':
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:88: undefined reference to `ZSTD_versionNumber'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:88: undefined reference to `ZSTD_versionNumber'
./third/rocksdb/librocksdb.a(db_impl.o): In function `rocksdb::DBImpl::DBImpl(rocksdb::DBOptions const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:88: undefined reference to `ZSTD_versionNumber'
./third/rocksdb/librocksdb.a(block_based_table_builder.o): In function `rocksdb::CompressBlock(rocksdb::Slice const&, rocksdb::CompressionOptions const&, rocksdb::CompressionType*, unsigned int, rocksdb::Slice const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*)':
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:245: undefined reference to `deflateInit2_'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:253: undefined reference to `deflateSetDictionary'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:271: undefined reference to `deflate'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:257: undefined reference to `deflateEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:746: undefined reference to `ZSTD_compressBound'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:750: undefined reference to `ZSTD_createCCtx'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:751: undefined reference to `ZSTD_compress_usingDict'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:754: undefined reference to `ZSTD_freeCCtx'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:163: undefined reference to `snappy::MaxCompressedLength(unsigned long)'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:165: undefined reference to `snappy::RawCompress(char const*, unsigned long, char*, unsigned long*)'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:415: undefined reference to `BZ2_bzCompressInit'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:429: undefined reference to `BZ2_bzCompress'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:438: undefined reference to `BZ2_bzCompressEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:552: undefined reference to `LZ4_compressBound'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:557: undefined reference to `LZ4_createStream'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:563: undefined reference to `LZ4_compress_fast_continue'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:571: undefined reference to `LZ4_freeStream'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:671: undefined reference to `LZ4_compressBound'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:676: undefined reference to `LZ4_createStreamHC'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:677: undefined reference to `LZ4_resetStreamHC'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:681: undefined reference to `LZ4_loadDictHC'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:685: undefined reference to `LZ4_compress_HC_continue'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:693: undefined reference to `LZ4_freeStreamHC'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:438: undefined reference to `BZ2_bzCompressEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:280: undefined reference to `deflateEnd'
/home/zhang/paxosstore/certain/third/rocksdb/./util/compression.h:559: undefined reference to `LZ4_loadDict'
collect2: error: ld returned 1 exit status
里面主要的报错是librocksdb.a(format.o): In function rocksdb::UncompressBlockContentsForCompressionType(char const*, unsigned long, rocksdb::BlockContents*, unsigned int, rocksdb::Slice const&, rocksdb::CompressionType, rocksdb::ImmutableCFOptions const&)':
这个报错让人很烦，我的编译命令是：
g++ -std=c++11 -o rocksdbtest test.cpp ./third/rocksdb/librocksdb.a -lpthread
解决方法是把缺失的库链接上：
g++ -std=c++11 -o rocksdbtest test.cpp ./third/rocksdb/librocksdb.a -lpthread -lsnappy -lz -lbz2 -lzstd /usr/lib/x86_64-linux-gnu/liblz4.a
另一个解决方法是不使用静态链接库librocksdb.a，使用动态库：
g++ -std=c++11 -o rocksdbtest test.cpp -lrocksdb -lpthread
文档信息
- 本文作者：last2win
- 本文链接：https://last2win.com/2020/02/27/rocksdb-error/
- 版权声明：自由转载-非商用-非衍生-保持署名（创意共享3.0许可证）