Revision 521b4c28b9a5bead921a1d1a475495bae2ccbea1 authored by Aaron Gao on 05 July 2017, 23:35:46 UTC, committed by Facebook Github Bot on 05 July 2017, 23:41:30 UTC
Summary:
https://github.com/facebook/rocksdb/releases/tag/v5.5.1
Closes https://github.com/facebook/rocksdb/pull/2522

Differential Revision: D5365355

Pulled By: lightmark

fbshipit-source-id: 63371a98ebc7429766fd86dc27c1ea35950c98f5
1 parent 3304257
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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"


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