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This directory contains the hdfs extensions needed to make rocksdb store
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files in HDFS.
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It has been compiled and testing against CDH 4.4 (2.0.0+1475-1.cdh4.4.0.p0.23~precise-cdh4.4.0).
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The configuration assumes that packages libhdfs0, libhdfs0-dev are
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installed which basically means that hdfs.h is in /usr/include and libhdfs in /usr/lib
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The env_hdfs.h file defines the rocksdb objects that are needed to talk to an
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underlying filesystem.
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If you want to compile rocksdb with hdfs support, please set the following
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environment variables appropriately (also defined in setup.sh for convenience)
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USE_HDFS=1
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JAVA_HOME=/usr/local/jdk-6u22-64
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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
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make clean all db_bench
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To run dbbench,
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set CLASSPATH to include your hadoop distribution
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db_bench --hdfs="hdfs://hbaseudbperf001.snc1.facebook.com:9000"
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