ZStd:压缩比最高,压缩速度也较快,支持并行压缩,CPU 消耗较高。 它们的主要特点是: 压缩比:指压缩后消息体积的缩减比例,Gzip > ZStd > LZ4 > Snappy。 压缩速度:指单位时间内可以压缩的原始消息数据量,Snappy > LZ4 > ZStd > Gzip。 CPU 消耗:指压缩算法执行时占用的 CPU 计算资源,Snappy < LZ4 < ZStd ...
1、查看支持 执行hadoop checknative,检查hadoop对snappy的支持: 18/11/1914:34:38INFO bzip2.Bzip2Factory:Successfully loaded & initialized native-bzip2 library system-native18/11/1914:34:38INFO zlib.ZlibFactory:Successfully loaded & initialized native-zlib library Native library checking:hadoop:true/data/...
importorg.apache.hadoop.hbase.io.hfile.Compression;//导入方法依赖的package包/类/** * Returns the compression string. Defaults to SNAPPY compression. * *@paramcompressionString One of SNAPPY, GZ, LZO, LZ4 or NONE. *@returnThe corresponding Compression.Algorithmenum type. */publicstaticCompression...
I tried setting HBASE_LIBRARY_PATH ( and HBASE_CLASSPATH just in case ) topoint to the directory containing libsnappy but I am still getting thiserror What else can I do to fix / diagnose this problem? Thanks! ~ Peter
designed to be compatible with any other compression library. Instead, its goal is to be very high compression efficiency and reasonable compression rates, so it is recommended to use snappy more efficiently.相反,它的目标是非常高的压缩效率和合理的压缩率,所以在更加需要效率的情况下推荐使用snappy。
【LZAV - Fast Data Compression Algorithm (in C/C++):快速内存数据压缩算法,具有高压缩速度(460+MB/s)和高解压速度(2500+MB/s),压缩比优于LZ4、Snappy和LZF】'LZAV - Fast Data Compression Algorithm (in C/C++) - Fast In-Memory Data Compression Algorithm (inline C/C++) 460+MB/s compress, 250...
Fast In-Memory Data Compression Algorithm (inline C/C++) 460+MB/s compress, 2800+MB/s decompress, ratio% better than LZ4, Snappy, and Zstd@-1 - avaneev/lzav
Snappy 1.1.42.091565 MB/s1950 MB/s Zstandard1.4.0 -12.883515 MB/s1380 MB/s LZF v3.62.073415 MB/s910 MB/s zlibdeflate 1.2.11 -12.730100 MB/s415 MB/s LZ4 HC -9 (v1.9.0)2.72141 MB/s4900 MB/s zlibdeflate 1.2.11 -63.09936 MB/s445 MB/s ...
Snappy 1.1.42.091565 MB/s1950 MB/s Zstandard1.4.0 -12.883515 MB/s1380 MB/s LZF v3.62.073415 MB/s910 MB/s zlibdeflate 1.2.11 -12.730100 MB/s415 MB/s LZ4 HC -9 (v1.9.0)2.72141 MB/s4900 MB/s zlibdeflate 1.2.11 -63.09936 MB/s445 MB/s ...
snappy 1.1.92.073530 MB/s1660 MB/s The negative compression levels, specified with--fast=#, offer faster compression and decompression speed at the cost of compression ratio. Zstd can also offer stronger compression ratios at the cost of compression speed. Speed vs Compression trade-off is config...