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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
commit483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch)
treee5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/rocksdb/hdfs/README
parentInitial commit. (diff)
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Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+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"
+
+