rocksdb

fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

History

Zhen Li d63f86e506 fix build with 'USE_HDFS' on windows (#6950 ) Summary: Build with "USE_HDFS" failed with below errors on Windows. This PR is trying to fix them Severity Code Description Project File Line Suppression State Error (active) E0020 identifier "ssize_t" is undefined rocksdb D:\Git\rocksdb\rocksdb\env\env_hdfs.cc 127 Error (active) E1696 cannot open source file "sys/time.h" rocksdb D:\Git\rocksdb\rocksdb\env\env_hdfs.cc 15 Error C2065 'pthread_t': undeclared identifier rocksdb d:\git\rocksdb\rocksdb\hdfs\env_hdfs.h 166 Error C3861 'pthread_self': identifier not found rocksdb d:\git\rocksdb\rocksdb\hdfs\env_hdfs.h 167 Error C1083 Cannot open include file: 'sys/time.h': No such file or directory rocksdb d:\git\rocksdb\rocksdb\env\env_hdfs.cc 15 Error C2065 'pthread_t': undeclared identifier db_bench d:\git\rocksdb\rocksdb\hdfs\env_hdfs.h 166 Error C3861 'pthread_self': identifier not found db_bench d:\git\rocksdb\rocksdb\hdfs\env_hdfs.h 167 Pull Request resolved: https://github.com/facebook/rocksdb/pull/6950 Test Plan: 1. manually test build with "USE_HDFS" on Windows, verified HDFS Env related function by db_bench.exe. D:\Git\rocksdb\build\Debug>db_bench.exe --hdfs="abfs://test@rdbtest2.dfs.core.windows.net" --num=100 --benchmarks="fillseq,readseq,fillseekseq" --db="abfs://test@rdbtest2.dfs.core.windows.net/test" 2020-06-05 20:42:21,102 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 2020-06-05 20:42:22,646 WARN utils.SSLSocketFactoryEx: Failed to load OpenSSL. Falling back to the JSSE default. Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags RocksDB: version 6.10 Keys: 16 bytes each Values: 100 bytes each (50 bytes after compression) Entries: 100 Prefix: 0 bytes Keys per prefix: 0 RawSize: 0.0 MB (estimated) FileSize: 0.0 MB (estimated) Write rate: 0 bytes/second Read rate: 0 ops/second Compression: Snappy Compression sampling rate: 0 Memtablerep: skip_list Perf Level: 1 WARNING: Assertions are enabled; benchmarks unnecessarily slow ------------------------------------------------ Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags DB path: [abfs://test@rdbtest2.dfs.core.windows.net/test] fillseq : 1138.350 micros/op 877 ops/sec; 0.1 MB/s DB path: [abfs://test@rdbtest2.dfs.core.windows.net/test] readseq : 63.580 micros/op 15627 ops/sec; 1.7 MB/s DB path: [abfs://test@rdbtest2.dfs.core.windows.net/test] fillseekseq : 45.615 micros/op 21762 ops/sec; Reviewed By: cheng-chang Differential Revision: D21964806 Pulled By: riversand963 fbshipit-source-id: 9d7413178ece0113d11bc4398583f7d0590d5dbd		4 years ago
..
README	using java7 in runtime for hdfs env (#1072 )	9 years ago
env_hdfs.h	fix build with 'USE_HDFS' on windows (#6950 )	4 years ago
setup.sh	Add copyright headers per FB open-source checkup tool. (#5199 )	6 years ago

README

This directory contains the hdfs extensions needed to make rocksdb store
files in HDFS.

It has been compiled and testing against CDH 4.4 (2.0.0+1475-1.cdh4.4.0.p0.23~precise-cdh4.4.0).

The configuration assumes that packages libhdfs0, libhdfs0-dev are 
installed which basically means that hdfs.h is in /usr/include and libhdfs in /usr/lib

The env_hdfs.h file defines the rocksdb objects that are needed to talk to an
underlying filesystem. 

If you want to compile rocksdb with hdfs support, please set the following
environment variables appropriately (also defined in setup.sh for convenience)
   USE_HDFS=1
   JAVA_HOME=/usr/local/jdk-7u79-64
   LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/jdk-7u79-64/jre/lib/amd64/server:/usr/local/jdk-7u79-64/jre/lib/amd64/:./snappy/libs
   make clean all db_bench

To run dbbench,
  set CLASSPATH to include your hadoop distribution
  db_bench --hdfs="hdfs://hbaseudbperf001.snc1.facebook.com:9000"