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rocksdb/hdfs
sdong 09899f0b51 DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 10 years ago
..
README hdfs cleanup and compile test against CDH 4.4. 10 years ago
env_hdfs.h DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 10 years ago
setup.sh hdfs cleanup and compile test against CDH 4.4. 10 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
enviroment variables appropriately (also defined in setup.sh for convenience)
USE_HDFS=1
JAVA_HOME=/usr/local/jdk-6u22-64
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/jdk-6u22-64/jre/lib/amd64/server:/usr/local/jdk-6u22-64/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"