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Diffstat (limited to 'src/rocksdb/hdfs/README')
| -rw-r--r-- | src/rocksdb/hdfs/README | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/rocksdb/hdfs/README b/src/rocksdb/hdfs/README new file mode 100644 index 000000000..903651169 --- /dev/null +++ b/src/rocksdb/hdfs/README @@ -0,0 +1,23 @@ +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" + + |