HADOOP-11887. Introduce Intel ISA-L erasure coding library for native erasure encoding support (Kai Zheng via Colin P. McCabe)
(cherry picked from commit 482e35c55a)
This commit is contained in:
Colin Patrick Mccabe
parent
aa03030e4a
commit
bb3b2977cd
25
BUILDING.txt
25
BUILDING.txt
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@ -72,6 +72,8 @@ Optional packages:
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* Snappy compression
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$ sudo apt-get install snappy libsnappy-dev
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* Intel ISA-L library for erasure coding
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Please refer to https://01.org/intel%C2%AE-storage-acceleration-library-open-source-version
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* Bzip2
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$ sudo apt-get install bzip2 libbz2-dev
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* Jansson (C Library for JSON)
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@ -177,6 +179,29 @@ Maven build goals:
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* -Dtest.exclude=<TESTCLASSNAME>
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* -Dtest.exclude.pattern=**/<TESTCLASSNAME1>.java,**/<TESTCLASSNAME2>.java
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Intel ISA-L build options:
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Intel ISA-L is a erasure coding library that can be utilized by the native code.
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It is currently an optional component, meaning that Hadoop can be built with
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or without this dependency. Note the library is used via dynamic module. Please
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reference the official site for the library details.
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https://01.org/intel%C2%AE-storage-acceleration-library-open-source-version
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* Use -Drequire.isal to fail the build if libisal.so is not found.
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If this option is not specified and the isal library is missing,
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we silently build a version of libhadoop.so that cannot make use of ISA-L and
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the native raw erasure coders.
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This option is recommended if you plan on making use of native raw erasure
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coders and want to get more repeatable builds.
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* Use -Disal.prefix to specify a nonstandard location for the libisal
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library files. You do not need this option if you have installed ISA-L to the
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system library path.
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* Use -Disal.lib to specify a nonstandard location for the libisal library
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files.
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* Use -Dbundle.isal to copy the contents of the isal.lib directory into
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the final tar file. This option requires that -Disal.lib is also given,
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and it ignores the -Disal.prefix option.
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----------------------------------------------------------------------------------
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Building components separately
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@ -329,6 +329,9 @@ Release 2.8.0 - UNRELEASED
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HADOOP-11685. StorageException complaining " no lease ID" during HBase
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distributed log splitting (Duo Xu via cnauroth)
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HADOOP-11887. Introduce Intel ISA-L erasure coding library for native
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erasure encoding support (Kai Zheng via Colin P. McCabe)
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OPTIMIZATIONS
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HADOOP-11785. Reduce the number of listStatus operation in distcp
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@ -516,6 +516,9 @@
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<openssl.prefix></openssl.prefix>
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<openssl.lib></openssl.lib>
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<openssl.include></openssl.include>
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<require.isal>false</require.isal>
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<isal.prefix></isal.prefix>
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<isal.lib></isal.lib>
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<require.openssl>false</require.openssl>
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<runningWithNative>true</runningWithNative>
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<bundle.openssl.in.bin>false</bundle.openssl.in.bin>
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@ -569,6 +572,7 @@
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<javahClassName>org.apache.hadoop.io.compress.snappy.SnappyDecompressor</javahClassName>
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<javahClassName>org.apache.hadoop.io.compress.lz4.Lz4Compressor</javahClassName>
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<javahClassName>org.apache.hadoop.io.compress.lz4.Lz4Decompressor</javahClassName>
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<javahClassName>org.apache.hadoop.io.erasurecode.ErasureCodeNative</javahClassName>
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<javahClassName>org.apache.hadoop.crypto.OpensslCipher</javahClassName>
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<javahClassName>org.apache.hadoop.crypto.random.OpensslSecureRandom</javahClassName>
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<javahClassName>org.apache.hadoop.util.NativeCrc32</javahClassName>
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@ -591,7 +595,7 @@
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<configuration>
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<target>
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<exec executable="cmake" dir="${project.build.directory}/native" failonerror="true">
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<arg line="${basedir}/src/ -DGENERATED_JAVAH=${project.build.directory}/native/javah -DJVM_ARCH_DATA_MODEL=${sun.arch.data.model} -DREQUIRE_BZIP2=${require.bzip2} -DREQUIRE_SNAPPY=${require.snappy} -DCUSTOM_SNAPPY_PREFIX=${snappy.prefix} -DCUSTOM_SNAPPY_LIB=${snappy.lib} -DCUSTOM_SNAPPY_INCLUDE=${snappy.include} -DREQUIRE_OPENSSL=${require.openssl} -DCUSTOM_OPENSSL_PREFIX=${openssl.prefix} -DCUSTOM_OPENSSL_LIB=${openssl.lib} -DCUSTOM_OPENSSL_INCLUDE=${openssl.include} -DEXTRA_LIBHADOOP_RPATH=${extra.libhadoop.rpath}"/>
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<arg line="${basedir}/src/ -DGENERATED_JAVAH=${project.build.directory}/native/javah -DJVM_ARCH_DATA_MODEL=${sun.arch.data.model} -DREQUIRE_BZIP2=${require.bzip2} -DREQUIRE_SNAPPY=${require.snappy} -DCUSTOM_SNAPPY_PREFIX=${snappy.prefix} -DCUSTOM_SNAPPY_LIB=${snappy.lib} -DCUSTOM_SNAPPY_INCLUDE=${snappy.include} -DREQUIRE_ISAL=${require.isal} -DCUSTOM_ISAL_PREFIX=${isal.prefix} -DCUSTOM_ISAL_LIB=${isal.lib} -DREQUIRE_OPENSSL=${require.openssl} -DCUSTOM_OPENSSL_PREFIX=${openssl.prefix} -DCUSTOM_OPENSSL_LIB=${openssl.lib} -DCUSTOM_OPENSSL_INCLUDE=${openssl.include} -DEXTRA_LIBHADOOP_RPATH=${extra.libhadoop.rpath}"/>
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</exec>
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<exec executable="make" dir="${project.build.directory}/native" failonerror="true">
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<arg line="VERBOSE=1"/>
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@ -613,7 +617,13 @@
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<arg value="[ x$SKIPTESTS = xtrue ] || ${project.build.directory}/native/test_bulk_crc32"/>
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<env key="SKIPTESTS" value="${skipTests}"/>
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</exec>
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</target>
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<exec executable="${shell-executable}" failonerror="true" dir="${project.build.directory}/native">
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<arg value="-c"/>
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<arg value="[ ! -f ${project.build.directory}/native/erasure_code_test ] || ${project.build.directory}/native/erasure_code_test"/>
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<env key="SKIPTESTS" value="${skipTests}"/>
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<env key="LD_LIBRARY_PATH" value="${LD_LIBRARY_PATH}:${isal.lib}:${isal.prefix}"/>
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</exec>
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</target>
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</configuration>
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</execution>
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</executions>
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@ -633,6 +643,9 @@
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<snappy.prefix></snappy.prefix>
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<snappy.lib></snappy.lib>
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<snappy.include></snappy.include>
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<require.isal>false</require.isal>
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<isal.prefix></isal.prefix>
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<isal.lib></isal.lib>
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<require.snappy>false</require.snappy>
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<bundle.snappy.in.bin>true</bundle.snappy.in.bin>
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<openssl.prefix></openssl.prefix>
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@ -686,6 +699,7 @@
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<javahClassName>org.apache.hadoop.io.compress.snappy.SnappyDecompressor</javahClassName>
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<javahClassName>org.apache.hadoop.io.compress.lz4.Lz4Compressor</javahClassName>
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<javahClassName>org.apache.hadoop.io.compress.lz4.Lz4Decompressor</javahClassName>
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<javahClassName>org.apache.hadoop.io.erasurecode.ErasureCodeNative</javahClassName>
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<javahClassName>org.apache.hadoop.crypto.OpensslCipher</javahClassName>
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<javahClassName>org.apache.hadoop.crypto.random.OpensslSecureRandom</javahClassName>
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<javahClassName>org.apache.hadoop.util.NativeCrc32</javahClassName>
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@ -739,6 +753,9 @@
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<argument>/p:CustomOpensslLib=${openssl.lib}</argument>
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<argument>/p:CustomOpensslInclude=${openssl.include}</argument>
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<argument>/p:RequireOpenssl=${require.openssl}</argument>
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<argument>/p:RequireIsal=${require.isal}</argument>
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<argument>/p:CustomIsalPrefix=${isal.prefix}</argument>
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<argument>/p:CustomIsalLib=${isal.lib}</argument>
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</arguments>
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</configuration>
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</execution>
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@ -94,6 +94,29 @@ else()
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endif()
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endif()
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set(STORED_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
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hadoop_set_find_shared_library_version("2")
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find_library(ISAL_LIBRARY
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NAMES isal
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PATHS ${CUSTOM_ISAL_PREFIX} ${CUSTOM_ISAL_PREFIX}/lib
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${CUSTOM_ISAL_PREFIX}/lib64 ${CUSTOM_ISAL_LIB})
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set(CMAKE_FIND_LIBRARY_SUFFIXES ${STORED_CMAKE_FIND_LIBRARY_SUFFIXES})
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if (ISAL_LIBRARY)
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GET_FILENAME_COMPONENT(HADOOP_ISAL_LIBRARY ${ISAL_LIBRARY} NAME)
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set(ISAL_INCLUDE_DIR ${SRC}/io/erasurecode/include)
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set(ISAL_SOURCE_FILES
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${SRC}/io/erasurecode/erasure_code.c)
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add_executable(erasure_code_test
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${SRC}/io/erasurecode/erasure_code.c
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${TST}/io/erasurecode/erasure_code_test.c
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)
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target_link_libraries(erasure_code_test ${CMAKE_DL_LIBS})
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else (ISAL_LIBRARY)
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IF(REQUIRE_ISAL)
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MESSAGE(FATAL_ERROR "Required ISA-L library could not be found. ISAL_LIBRARY=${ISAL_LIBRARY}, CUSTOM_ISAL_PREFIX=${CUSTOM_ISAL_PREFIX}")
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ENDIF(REQUIRE_ISAL)
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endif (ISAL_LIBRARY)
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# Build hardware CRC32 acceleration, if supported on the platform.
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "amd64")
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set(BULK_CRC_ARCH_SOURCE_FIlE "${SRC}/util/bulk_crc32_x86.c")
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@ -169,6 +192,7 @@ include_directories(
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${ZLIB_INCLUDE_DIRS}
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${BZIP2_INCLUDE_DIR}
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${SNAPPY_INCLUDE_DIR}
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${ISAL_INCLUDE_DIR}
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${OPENSSL_INCLUDE_DIR}
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${SRC}/util
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)
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@ -181,6 +205,7 @@ hadoop_add_dual_library(hadoop
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${SRC}/io/compress/lz4/Lz4Decompressor.c
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${SRC}/io/compress/lz4/lz4.c
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${SRC}/io/compress/lz4/lz4hc.c
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${ISAL_SOURCE_FILES}
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${SNAPPY_SOURCE_FILES}
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${OPENSSL_SOURCE_FILES}
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${SRC}/io/compress/zlib/ZlibCompressor.c
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@ -22,6 +22,7 @@
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#cmakedefine HADOOP_BZIP2_LIBRARY "@HADOOP_BZIP2_LIBRARY@"
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#cmakedefine HADOOP_SNAPPY_LIBRARY "@HADOOP_SNAPPY_LIBRARY@"
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#cmakedefine HADOOP_OPENSSL_LIBRARY "@HADOOP_OPENSSL_LIBRARY@"
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#cmakedefine HADOOP_ISAL_LIBRARY "@HADOOP_ISAL_LIBRARY@"
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#cmakedefine HAVE_SYNC_FILE_RANGE
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#cmakedefine HAVE_POSIX_FADVISE
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@ -0,0 +1,86 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.io.erasurecode;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hadoop.util.NativeCodeLoader;
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/**
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* Erasure code native libraries (for now, Intel ISA-L) related utilities.
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*/
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public final class ErasureCodeNative {
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private static final Log LOG =
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LogFactory.getLog(ErasureCodeNative.class.getName());
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/**
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* The reason why ISA-L library is not available, or null if it is available.
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*/
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private static final String LOADING_FAILURE_REASON;
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static {
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if (!NativeCodeLoader.isNativeCodeLoaded()) {
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LOADING_FAILURE_REASON = "hadoop native library cannot be loaded.";
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} else if (!NativeCodeLoader.buildSupportsIsal()) {
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LOADING_FAILURE_REASON = "libhadoop was built without ISA-L support";
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} else {
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String problem = null;
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try {
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loadLibrary();
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} catch (Throwable t) {
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problem = "Loading ISA-L failed: " + t.getMessage();
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LOG.error("Loading ISA-L failed", t);
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}
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LOADING_FAILURE_REASON = problem;
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}
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}
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private ErasureCodeNative() {}
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/**
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* Are native libraries loaded?
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*/
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public static boolean isNativeCodeLoaded() {
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return LOADING_FAILURE_REASON == null;
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}
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/**
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* Is the native ISA-L library loaded and initialized? Throw exception if not.
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*/
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public static void checkNativeCodeLoaded() {
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if (LOADING_FAILURE_REASON != null) {
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throw new RuntimeException(LOADING_FAILURE_REASON);
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}
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}
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/**
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* Load native library available or supported.
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*/
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public static native void loadLibrary();
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/**
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* Get the native library name that's available or supported.
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*/
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public static native String getLibraryName();
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public static String getLoadingFailureReason() {
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return LOADING_FAILURE_REASON;
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}
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}
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@ -33,7 +33,7 @@ import org.apache.hadoop.fs.CommonConfigurationKeys;
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*/
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@InterfaceAudience.Private
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@InterfaceStability.Unstable
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public class NativeCodeLoader {
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public final class NativeCodeLoader {
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private static final Log LOG =
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LogFactory.getLog(NativeCodeLoader.class);
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@ -64,6 +64,8 @@ public class NativeCodeLoader {
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}
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}
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private NativeCodeLoader() {}
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/**
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* Check if native-hadoop code is loaded for this platform.
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*
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@ -78,7 +80,12 @@ public class NativeCodeLoader {
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* Returns true only if this build was compiled with support for snappy.
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*/
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public static native boolean buildSupportsSnappy();
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/**
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* Returns true only if this build was compiled with support for ISA-L.
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*/
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public static native boolean buildSupportsIsal();
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/**
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* Returns true only if this build was compiled with support for openssl.
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*/
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@ -18,6 +18,7 @@
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package org.apache.hadoop.util;
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import org.apache.hadoop.io.erasurecode.ErasureCodeNative;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.crypto.OpensslCipher;
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import org.apache.hadoop.io.compress.Lz4Codec;
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@ -65,6 +66,7 @@ public class NativeLibraryChecker {
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boolean nativeHadoopLoaded = NativeCodeLoader.isNativeCodeLoaded();
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boolean zlibLoaded = false;
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boolean snappyLoaded = false;
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boolean isalLoaded = false;
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// lz4 is linked within libhadoop
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boolean lz4Loaded = nativeHadoopLoaded;
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boolean bzip2Loaded = Bzip2Factory.isNativeBzip2Loaded(conf);
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@ -75,6 +77,7 @@ public class NativeLibraryChecker {
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String hadoopLibraryName = "";
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String zlibLibraryName = "";
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String snappyLibraryName = "";
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String isalDetail = "";
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String lz4LibraryName = "";
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String bzip2LibraryName = "";
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String winutilsPath = null;
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@ -85,18 +88,29 @@ public class NativeLibraryChecker {
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if (zlibLoaded) {
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zlibLibraryName = ZlibFactory.getLibraryName();
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}
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snappyLoaded = NativeCodeLoader.buildSupportsSnappy() &&
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SnappyCodec.isNativeCodeLoaded();
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if (snappyLoaded && NativeCodeLoader.buildSupportsSnappy()) {
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snappyLibraryName = SnappyCodec.getLibraryName();
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}
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if (OpensslCipher.getLoadingFailureReason() != null) {
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openSslDetail = OpensslCipher.getLoadingFailureReason();
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isalDetail = ErasureCodeNative.getLoadingFailureReason();
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if (isalDetail != null) {
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isalLoaded = false;
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} else {
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isalDetail = ErasureCodeNative.getLibraryName();
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isalLoaded = true;
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}
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openSslDetail = OpensslCipher.getLoadingFailureReason();
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if (openSslDetail != null) {
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openSslLoaded = false;
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} else {
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openSslDetail = OpensslCipher.getLibraryName();
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openSslLoaded = true;
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}
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if (lz4Loaded) {
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lz4LibraryName = Lz4Codec.getLibraryName();
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}
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@ -125,6 +139,8 @@ public class NativeLibraryChecker {
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System.out.printf("lz4: %b %s%n", lz4Loaded, lz4LibraryName);
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System.out.printf("bzip2: %b %s%n", bzip2Loaded, bzip2LibraryName);
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System.out.printf("openssl: %b %s%n", openSslLoaded, openSslDetail);
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System.out.printf("ISA-L: %b %s%n", isalLoaded, isalDetail);
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if (Shell.WINDOWS) {
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System.out.printf("winutils: %b %s%n", winutilsExists, winutilsPath);
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}
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@ -17,7 +17,7 @@
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limitations under the License.
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-->
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<Project DefaultTargets="CheckRequireSnappy;Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Project DefaultTargets="CheckRequireSnappy;CheckRequireIsal;Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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@ -79,11 +79,22 @@
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<IncludePath Condition="'$(SnappyEnabled)' == 'true'">$(SnappyInclude);$(IncludePath)</IncludePath>
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<IncludePath Condition="Exists('$(ZLIB_HOME)')">$(ZLIB_HOME);$(IncludePath)</IncludePath>
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</PropertyGroup>
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<PropertyGroup>
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<IsalLib Condition="Exists('$(CustomIsalPrefix)\isa-l.dll')">$(CustomIsalPrefix)</IsalLib>
|
||||
<IsalLib Condition="Exists('$(CustomIsalPrefix)\lib\isa-l.dll') And '$(IsalLib)' == ''">$(CustomIsalPrefix)\lib</IsalLib>
|
||||
<IsalLib Condition="Exists('$(CustomIsalLib)') And '$(IsalLib)' == ''">$(CustomIsalLib)</IsalLib>
|
||||
<IsalEnabled Condition="'$(IsalLib)' != ''">true</IsalEnabled>
|
||||
</PropertyGroup>
|
||||
<Target Name="CheckRequireSnappy">
|
||||
<Error
|
||||
Text="Required snappy library could not be found. SnappyLibrary=$(SnappyLibrary), SnappyInclude=$(SnappyInclude), CustomSnappyLib=$(CustomSnappyLib), CustomSnappyInclude=$(CustomSnappyInclude), CustomSnappyPrefix=$(CustomSnappyPrefix)"
|
||||
Condition="'$(RequireSnappy)' == 'true' And '$(SnappyEnabled)' != 'true'" />
|
||||
</Target>
|
||||
<Target Name="CheckRequireIsal">
|
||||
<Error
|
||||
Text="Required ISA-L library could not be found. CustomIsalLib=$(CustomIsalLib), CustomIsalPrefix=$(CustomIsalPrefix)"
|
||||
Condition="'$(RequireIsal)' == 'true' And '$(IsalEnabled)' != 'true'" />
|
||||
</Target>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
|
|
@ -92,7 +103,7 @@
|
|||
<FunctionLevelLinking>true</FunctionLevelLinking>
|
||||
<IntrinsicFunctions>true</IntrinsicFunctions>
|
||||
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;NATIVE_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
|
||||
<AdditionalIncludeDirectories>..\winutils\include;..\..\..\target\native\javah;%JAVA_HOME%\include;%JAVA_HOME%\include\win32;.\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>..\winutils\include;..\native\src\org\apache\hadoop\io\erasurecode\include;..\..\..\target\native\javah;%JAVA_HOME%\include;%JAVA_HOME%\include\win32;.\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<CompileAs>CompileAsC</CompileAs>
|
||||
<DisableSpecificWarnings>4244</DisableSpecificWarnings>
|
||||
</ClCompile>
|
||||
|
|
@ -113,7 +124,7 @@
|
|||
<FunctionLevelLinking>true</FunctionLevelLinking>
|
||||
<IntrinsicFunctions>true</IntrinsicFunctions>
|
||||
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;NATIVE_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
|
||||
<AdditionalIncludeDirectories>..\winutils\include;..\..\..\target\native\javah;%JAVA_HOME%\include;%JAVA_HOME%\include\win32;.\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>..\winutils\include;..\native\src\org\apache\hadoop\io\erasurecode\include;..\..\..\target\native\javah;%JAVA_HOME%\include;%JAVA_HOME%\include\win32;.\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<CompileAs>CompileAsC</CompileAs>
|
||||
<DisableSpecificWarnings>4244</DisableSpecificWarnings>
|
||||
</ClCompile>
|
||||
|
|
@ -145,11 +156,16 @@
|
|||
<ClCompile Include="src\org\apache\hadoop\util\bulk_crc32.c" />
|
||||
<ClCompile Include="src\org\apache\hadoop\util\NativeCodeLoader.c">
|
||||
<AdditionalOptions Condition="'$(SnappyEnabled)' == 'true'">/D HADOOP_SNAPPY_LIBRARY=L\"snappy.dll\"</AdditionalOptions>
|
||||
<AdditionalOptions Condition="'$(IsalEnabled)' == 'true'">/D HADOOP_ISAL_LIBRARY=\"isa-l.dll\"</AdditionalOptions>
|
||||
</ClCompile>
|
||||
<ClCompile Include="src\org\apache\hadoop\util\NativeCrc32.c" />
|
||||
<ClCompile Include="src\org\apache\hadoop\yarn\server\nodemanager\windows_secure_container_executor.c">
|
||||
<AdditionalIncludeDirectories>src\org\apache\hadoop\io\nativeio;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
</ClCompile>
|
||||
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\erasure_code.c" Condition="'$(IsalEnabled)' == 'true'">
|
||||
<AdditionalOptions>/D HADOOP_ISAL_LIBRARY=\"isa-l.dll\"</AdditionalOptions>
|
||||
</ClCompile>
|
||||
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\coder\erasure_code_native.c" Condition="'$(IsalEnabled)' == 'true'"/>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="..\src\org\apache\hadoop\util\crc32c_tables.h" />
|
||||
|
|
|
|||
|
|
@ -0,0 +1,49 @@
|
|||
/**
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "org_apache_hadoop.h"
|
||||
#include "../include/erasure_code.h"
|
||||
#include "org_apache_hadoop_io_erasurecode_ErasureCodeNative.h"
|
||||
|
||||
#ifdef UNIX
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
JNIEXPORT void JNICALL
|
||||
Java_org_apache_hadoop_io_erasurecode_ErasureCodeNative_loadLibrary
|
||||
(JNIEnv *env, jclass myclass) {
|
||||
char errMsg[1024];
|
||||
load_erasurecode_lib(errMsg, sizeof(errMsg));
|
||||
if (strlen(errMsg) > 0) {
|
||||
THROW(env, "java/lang/UnsatisfiedLinkError", errMsg);
|
||||
}
|
||||
}
|
||||
|
||||
JNIEXPORT jstring JNICALL
|
||||
Java_org_apache_hadoop_io_erasurecode_ErasureCodeNative_getLibraryName
|
||||
(JNIEnv *env, jclass myclass) {
|
||||
char* libName = get_library_name();
|
||||
if (libName == NULL) {
|
||||
libName = "Unavailable";
|
||||
}
|
||||
return (*env)->NewStringUTF(env, libName);
|
||||
}
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
/* DO NOT EDIT THIS FILE - it is machine generated */
|
||||
#include <jni.h>
|
||||
/* Header for class org_apache_hadoop_io_erasurecode_ErasureCodeNative */
|
||||
|
||||
#ifndef _Included_org_apache_hadoop_io_erasurecode_ErasureCodeNative
|
||||
#define _Included_org_apache_hadoop_io_erasurecode_ErasureCodeNative
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
/*
|
||||
* Class: org_apache_hadoop_io_erasurecode_ErasureCodeNative
|
||||
* Method: loadLibrary
|
||||
* Signature: ()V
|
||||
*/
|
||||
JNIEXPORT void JNICALL Java_org_apache_hadoop_io_erasurecode_ErasureCodeNative_loadLibrary
|
||||
(JNIEnv *, jclass);
|
||||
|
||||
/*
|
||||
* Class: org_apache_hadoop_io_erasurecode_ErasureCodeNative
|
||||
* Method: getLibraryName
|
||||
* Signature: ()Ljava/lang/String;
|
||||
*/
|
||||
JNIEXPORT jstring JNICALL Java_org_apache_hadoop_io_erasurecode_ErasureCodeNative_getLibraryName
|
||||
(JNIEnv *, jclass);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
|
@ -0,0 +1,271 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "org_apache_hadoop.h"
|
||||
#include "../include/gf_util.h"
|
||||
#include "../include/erasure_code.h"
|
||||
|
||||
#ifdef UNIX
|
||||
#include <sys/time.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <dlfcn.h>
|
||||
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#ifdef WINDOWS
|
||||
#include <Windows.h>
|
||||
#endif
|
||||
|
||||
/**
|
||||
* erasure_code.c
|
||||
* Implementation erasure code utilities based on lib of erasure_code.so.
|
||||
* Building of this codes won't rely on any ISA-L source codes, but running
|
||||
* into this will rely on successfully loading of the dynamic library.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* The loaded library handle.
|
||||
*/
|
||||
static void* libec = NULL;
|
||||
|
||||
/**
|
||||
* A helper function to dlsym a 'symbol' from a given library-handle.
|
||||
*/
|
||||
|
||||
#ifdef UNIX
|
||||
|
||||
static __attribute__ ((unused))
|
||||
void *my_dlsym(void *handle, const char *symbol) {
|
||||
void *func_ptr = dlsym(handle, symbol);
|
||||
return func_ptr;
|
||||
}
|
||||
|
||||
/* A helper macro to dlsym the requisite dynamic symbol in NON-JNI env. */
|
||||
#define EC_LOAD_DYNAMIC_SYMBOL(func_ptr, handle, symbol) \
|
||||
if ((func_ptr = my_dlsym(handle, symbol)) == NULL) { \
|
||||
return "Failed to load symbol" symbol; \
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef WINDOWS
|
||||
|
||||
|
||||
|
||||
static FARPROC WINAPI my_dlsym(HMODULE handle, LPCSTR symbol) {
|
||||
FARPROC func_ptr = GetProcAddress(handle, symbol);
|
||||
return func_ptr;
|
||||
}
|
||||
|
||||
/* A helper macro to dlsym the requisite dynamic symbol in NON-JNI env. */
|
||||
#define EC_LOAD_DYNAMIC_SYMBOL(func_type, func_ptr, handle, symbol) \
|
||||
if ((func_ptr = (func_type)my_dlsym(handle, symbol)) == NULL) { \
|
||||
return "Failed to load symbol" symbol; \
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef UNIX
|
||||
// For gf_util.h
|
||||
static unsigned char (*d_gf_mul)(unsigned char, unsigned char);
|
||||
static unsigned char (*d_gf_inv)(unsigned char);
|
||||
static void (*d_gf_gen_rs_matrix)(unsigned char *, int, int);
|
||||
static void (*d_gf_gen_cauchy_matrix)(unsigned char *, int, int);
|
||||
static int (*d_gf_invert_matrix)(unsigned char *, unsigned char *, const int);
|
||||
static int (*d_gf_vect_mul)(int, unsigned char *, void *, void *);
|
||||
|
||||
// For erasure_code.h
|
||||
static void (*d_ec_init_tables)(int, int, unsigned char*, unsigned char*);
|
||||
static void (*d_ec_encode_data)(int, int, int, unsigned char*,
|
||||
unsigned char**, unsigned char**);
|
||||
static void (*d_ec_encode_data_update)(int, int, int, int, unsigned char*,
|
||||
unsigned char*, unsigned char**);
|
||||
#endif
|
||||
|
||||
#ifdef WINDOWS
|
||||
// For erasure_code.h
|
||||
typedef unsigned char (__cdecl *__d_gf_mul)(unsigned char, unsigned char);
|
||||
static __d_gf_mul d_gf_mul;
|
||||
typedef unsigned char (__cdecl *__d_gf_inv)(unsigned char);
|
||||
static __d_gf_inv d_gf_inv;
|
||||
typedef void (__cdecl *__d_gf_gen_rs_matrix)(unsigned char *, int, int);
|
||||
static __d_gf_gen_rs_matrix d_gf_gen_rs_matrix;
|
||||
typedef void (__cdecl *__d_gf_gen_cauchy_matrix)(unsigned char *, int, int);
|
||||
static __d_gf_gen_cauchy_matrix d_gf_gen_cauchy_matrix;
|
||||
typedef int (__cdecl *__d_gf_invert_matrix)(unsigned char *,
|
||||
unsigned char *, const int);
|
||||
static __d_gf_invert_matrix d_gf_invert_matrix;
|
||||
typedef int (__cdecl *__d_gf_vect_mul)(int, unsigned char *, void *, void *);
|
||||
static __d_gf_vect_mul d_gf_vect_mul;
|
||||
|
||||
// For erasure_code.h
|
||||
typedef void (__cdecl *__d_ec_init_tables)(int, int,
|
||||
unsigned char*, unsigned char*);
|
||||
static __d_ec_init_tables d_ec_init_tables;
|
||||
typedef void (__cdecl *__d_ec_encode_data)(int, int, int, unsigned char*,
|
||||
unsigned char**, unsigned char**);
|
||||
static __d_ec_encode_data d_ec_encode_data;
|
||||
typedef void (__cdecl *__d_ec_encode_data_update)(int, int, int, int, unsigned char*,
|
||||
unsigned char*, unsigned char**);
|
||||
static __d_ec_encode_data_update d_ec_encode_data_update;
|
||||
#endif
|
||||
|
||||
static const char* load_functions(void* libec) {
|
||||
#ifdef UNIX
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_gf_mul, libec, "gf_mul");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_gf_inv, libec, "gf_inv");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_gf_gen_rs_matrix, libec, "gf_gen_rs_matrix");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_gf_gen_cauchy_matrix, libec, "gf_gen_cauchy1_matrix");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_gf_invert_matrix, libec, "gf_invert_matrix");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_gf_vect_mul, libec, "gf_vect_mul");
|
||||
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_ec_init_tables, libec, "ec_init_tables");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_ec_encode_data, libec, "ec_encode_data");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(d_ec_encode_data_update, libec, "ec_encode_data_update");
|
||||
#endif
|
||||
|
||||
#ifdef WINDOWS
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_mul, d_gf_mul, libec, "gf_mul");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_inv, d_gf_inv, libec, "gf_inv");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_gen_rs_matrix, d_gf_gen_rs_matrix, libec, "gf_gen_rs_matrix");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_gen_cauchy_matrix, d_gf_gen_cauchy_matrix, libec, "gf_gen_cauchy1_matrix");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_invert_matrix, d_gf_invert_matrix, libec, "gf_invert_matrix");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_vect_mul, d_gf_vect_mul, libec, "gf_vect_mul");
|
||||
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_ec_init_tables, d_ec_init_tables, libec, "ec_init_tables");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_ec_encode_data, d_ec_encode_data, libec, "ec_encode_data");
|
||||
EC_LOAD_DYNAMIC_SYMBOL(__d_ec_encode_data_update, d_ec_encode_data_update, libec, "ec_encode_data_update");
|
||||
#endif
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void load_erasurecode_lib(char* err, size_t err_len) {
|
||||
const char* errMsg;
|
||||
|
||||
err[0] = '\0';
|
||||
|
||||
if (libec != NULL) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Load Intel ISA-L
|
||||
#ifdef UNIX
|
||||
libec = dlopen(HADOOP_ISAL_LIBRARY, RTLD_LAZY | RTLD_GLOBAL);
|
||||
if (libec == NULL) {
|
||||
snprintf(err, err_len, "Failed to load %s (%s)",
|
||||
HADOOP_ISAL_LIBRARY, dlerror());
|
||||
return;
|
||||
}
|
||||
// Clear any existing error
|
||||
dlerror();
|
||||
#endif
|
||||
|
||||
#ifdef WINDOWS
|
||||
libec = LoadLibrary(HADOOP_ISAL_LIBRARY);
|
||||
if (libec == NULL) {
|
||||
snprintf(err, err_len, "Failed to load %s", HADOOP_ISAL_LIBRARY);
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
|
||||
errMsg = load_functions(libec);
|
||||
if (errMsg != NULL) {
|
||||
snprintf(err, err_len, "Loading functions from ISA-L failed: %s", errMsg);
|
||||
}
|
||||
}
|
||||
|
||||
int build_support_erasurecode() {
|
||||
#ifdef HADOOP_ISAL_LIBRARY
|
||||
return 1;
|
||||
#else
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
const char* get_library_name() {
|
||||
#ifdef UNIX
|
||||
Dl_info dl_info;
|
||||
|
||||
if (d_ec_encode_data == NULL) {
|
||||
return HADOOP_ISAL_LIBRARY;
|
||||
}
|
||||
|
||||
if(dladdr(d_ec_encode_data, &dl_info)) {
|
||||
return dl_info.dli_fname;
|
||||
}
|
||||
#else
|
||||
LPTSTR filename = NULL;
|
||||
|
||||
if (libec == NULL) {
|
||||
return HADOOP_ISAL_LIBRARY;
|
||||
}
|
||||
|
||||
if (GetModuleFileName(libec, filename, 256) > 0) {
|
||||
return filename;
|
||||
}
|
||||
#endif
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
unsigned char h_gf_mul(unsigned char a, unsigned char b) {
|
||||
return d_gf_mul(a, b);
|
||||
}
|
||||
|
||||
unsigned char h_gf_inv(unsigned char a) {
|
||||
return d_gf_inv(a);
|
||||
}
|
||||
|
||||
void h_gf_gen_rs_matrix(unsigned char *a, int m, int k) {
|
||||
d_gf_gen_rs_matrix(a, m, k);
|
||||
}
|
||||
|
||||
void h_gf_gen_cauchy_matrix(unsigned char *a, int m, int k) {
|
||||
d_gf_gen_cauchy_matrix(a, m, k);
|
||||
}
|
||||
|
||||
int h_gf_invert_matrix(unsigned char *in, unsigned char *out, const int n) {
|
||||
return d_gf_invert_matrix(in, out, n);
|
||||
}
|
||||
|
||||
int h_gf_vect_mul(int len, unsigned char *gftbl, void *src, void *dest) {
|
||||
return d_gf_vect_mul(len, gftbl, src, dest);
|
||||
}
|
||||
|
||||
void h_ec_init_tables(int k, int rows, unsigned char* a, unsigned char* gftbls) {
|
||||
d_ec_init_tables(k, rows, a, gftbls);
|
||||
}
|
||||
|
||||
void h_ec_encode_data(int len, int k, int rows, unsigned char *gftbls,
|
||||
unsigned char **data, unsigned char **coding) {
|
||||
d_ec_encode_data(len, k, rows, gftbls, data, coding);
|
||||
}
|
||||
|
||||
void h_ec_encode_data_update(int len, int k, int rows, int vec_i,
|
||||
unsigned char *gftbls, unsigned char *data, unsigned char **coding) {
|
||||
d_ec_encode_data_update(len, k, rows, vec_i, gftbls, data, coding);
|
||||
}
|
||||
|
|
@ -0,0 +1,125 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef _ERASURE_CODE_H_
|
||||
#define _ERASURE_CODE_H_
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
/**
|
||||
* Interface to functions supporting erasure code encode and decode.
|
||||
*
|
||||
* This file defines the interface to optimized functions used in erasure
|
||||
* codes. Encode and decode of erasures in GF(2^8) are made by calculating the
|
||||
* dot product of the symbols (bytes in GF(2^8)) across a set of buffers and a
|
||||
* set of coefficients. Values for the coefficients are determined by the type
|
||||
* of erasure code. Using a general dot product means that any sequence of
|
||||
* coefficients may be used including erasure codes based on random
|
||||
* coefficients.
|
||||
* Multiple versions of dot product are supplied to calculate 1-6 output
|
||||
* vectors in one pass.
|
||||
* Base GF multiply and divide functions can be sped up by defining
|
||||
* GF_LARGE_TABLES at the expense of memory size.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* Return 0 if not support, 1 otherwise.
|
||||
*/
|
||||
int build_support_erasurecode();
|
||||
|
||||
/**
|
||||
* Get the library name possibly of full path.
|
||||
*/
|
||||
const char* get_library_name();
|
||||
|
||||
/**
|
||||
* Initialize and load erasure code library, returning error message if any.
|
||||
*
|
||||
* @param err The err message buffer.
|
||||
* @param err_len The length of the message buffer.
|
||||
*/
|
||||
void load_erasurecode_lib(char* err, size_t err_len);
|
||||
|
||||
/**
|
||||
* Initialize tables for fast Erasure Code encode and decode.
|
||||
*
|
||||
* Generates the expanded tables needed for fast encode or decode for erasure
|
||||
* codes on blocks of data. 32bytes is generated for each input coefficient.
|
||||
*
|
||||
* @param k The number of vector sources or rows in the generator matrix
|
||||
* for coding.
|
||||
* @param rows The number of output vectors to concurrently encode/decode.
|
||||
* @param a Pointer to sets of arrays of input coefficients used to encode
|
||||
* or decode data.
|
||||
* @param gftbls Pointer to start of space for concatenated output tables
|
||||
* generated from input coefficients. Must be of size 32*k*rows.
|
||||
* @returns none
|
||||
*/
|
||||
void h_ec_init_tables(int k, int rows, unsigned char* a, unsigned char* gftbls);
|
||||
|
||||
/**
|
||||
* Generate or decode erasure codes on blocks of data, runs appropriate version.
|
||||
*
|
||||
* Given a list of source data blocks, generate one or multiple blocks of
|
||||
* encoded data as specified by a matrix of GF(2^8) coefficients. When given a
|
||||
* suitable set of coefficients, this function will perform the fast generation
|
||||
* or decoding of Reed-Solomon type erasure codes.
|
||||
*
|
||||
* This function determines what instruction sets are enabled and
|
||||
* selects the appropriate version at runtime.
|
||||
*
|
||||
* @param len Length of each block of data (vector) of source or dest data.
|
||||
* @param k The number of vector sources or rows in the generator matrix
|
||||
* for coding.
|
||||
* @param rows The number of output vectors to concurrently encode/decode.
|
||||
* @param gftbls Pointer to array of input tables generated from coding
|
||||
* coefficients in ec_init_tables(). Must be of size 32*k*rows
|
||||
* @param data Array of pointers to source input buffers.
|
||||
* @param coding Array of pointers to coded output buffers.
|
||||
* @returns none
|
||||
*/
|
||||
void h_ec_encode_data(int len, int k, int rows, unsigned char *gftbls,
|
||||
unsigned char **data, unsigned char **coding);
|
||||
|
||||
/**
|
||||
* @brief Generate update for encode or decode of erasure codes from single
|
||||
* source, runs appropriate version.
|
||||
*
|
||||
* Given one source data block, update one or multiple blocks of encoded data as
|
||||
* specified by a matrix of GF(2^8) coefficients. When given a suitable set of
|
||||
* coefficients, this function will perform the fast generation or decoding of
|
||||
* Reed-Solomon type erasure codes from one input source at a time.
|
||||
*
|
||||
* This function determines what instruction sets are enabled and selects the
|
||||
* appropriate version at runtime.
|
||||
*
|
||||
* @param len Length of each block of data (vector) of source or dest data.
|
||||
* @param k The number of vector sources or rows in the generator matrix
|
||||
* for coding.
|
||||
* @param rows The number of output vectors to concurrently encode/decode.
|
||||
* @param vec_i The vector index corresponding to the single input source.
|
||||
* @param gftbls Pointer to array of input tables generated from coding
|
||||
* coefficients in ec_init_tables(). Must be of size 32*k*rows
|
||||
* @param data Pointer to single input source used to update output parity.
|
||||
* @param coding Array of pointers to coded output buffers.
|
||||
* @returns none
|
||||
*/
|
||||
void h_ec_encode_data_update(int len, int k, int rows, int vec_i,
|
||||
unsigned char *gftbls, unsigned char *data, unsigned char **coding);
|
||||
|
||||
#endif //_ERASURE_CODE_H_
|
||||
|
|
@ -0,0 +1,111 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef _GF_UTIL_H
|
||||
#define _GF_UTIL_H
|
||||
|
||||
/**
|
||||
* gf_util.h
|
||||
* Interface to functions for vector (block) multiplication in GF(2^8).
|
||||
*
|
||||
* This file defines the interface to routines used in fast RAID rebuild and
|
||||
* erasure codes.
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
* Single element GF(2^8) multiply.
|
||||
*
|
||||
* @param a Multiplicand a
|
||||
* @param b Multiplicand b
|
||||
* @returns Product of a and b in GF(2^8)
|
||||
*/
|
||||
unsigned char h_gf_mul(unsigned char a, unsigned char b);
|
||||
|
||||
/**
|
||||
* Single element GF(2^8) inverse.
|
||||
*
|
||||
* @param a Input element
|
||||
* @returns Field element b such that a x b = {1}
|
||||
*/
|
||||
unsigned char h_gf_inv(unsigned char a);
|
||||
|
||||
/**
|
||||
* Generate a matrix of coefficients to be used for encoding.
|
||||
*
|
||||
* Vandermonde matrix example of encoding coefficients where high portion of
|
||||
* matrix is identity matrix I and lower portion is constructed as 2^{i*(j-k+1)}
|
||||
* i:{0,k-1} j:{k,m-1}. Commonly used method for choosing coefficients in
|
||||
* erasure encoding but does not guarantee invertable for every sub matrix. For
|
||||
* large k it is possible to find cases where the decode matrix chosen from
|
||||
* sources and parity not in erasure are not invertable. Users may want to
|
||||
* adjust for k > 5.
|
||||
*
|
||||
* @param a [mxk] array to hold coefficients
|
||||
* @param m number of rows in matrix corresponding to srcs + parity.
|
||||
* @param k number of columns in matrix corresponding to srcs.
|
||||
* @returns none
|
||||
*/
|
||||
void h_gf_gen_rs_matrix(unsigned char *a, int m, int k);
|
||||
|
||||
/**
|
||||
* Generate a Cauchy matrix of coefficients to be used for encoding.
|
||||
*
|
||||
* Cauchy matrix example of encoding coefficients where high portion of matrix
|
||||
* is identity matrix I and lower portion is constructed as 1/(i + j) | i != j,
|
||||
* i:{0,k-1} j:{k,m-1}. Any sub-matrix of a Cauchy matrix should be invertable.
|
||||
*
|
||||
* @param a [mxk] array to hold coefficients
|
||||
* @param m number of rows in matrix corresponding to srcs + parity.
|
||||
* @param k number of columns in matrix corresponding to srcs.
|
||||
* @returns none
|
||||
*/
|
||||
void h_gf_gen_cauchy_matrix(unsigned char *a, int m, int k);
|
||||
|
||||
/**
|
||||
* Invert a matrix in GF(2^8)
|
||||
*
|
||||
* @param in input matrix
|
||||
* @param out output matrix such that [in] x [out] = [I] - identity matrix
|
||||
* @param n size of matrix [nxn]
|
||||
* @returns 0 successful, other fail on singular input matrix
|
||||
*/
|
||||
int h_gf_invert_matrix(unsigned char *in, unsigned char *out, const int n);
|
||||
|
||||
/**
|
||||
* GF(2^8) vector multiply by constant, runs appropriate version.
|
||||
*
|
||||
* Does a GF(2^8) vector multiply b = Ca where a and b are arrays and C
|
||||
* is a single field element in GF(2^8). Can be used for RAID6 rebuild
|
||||
* and partial write functions. Function requires pre-calculation of a
|
||||
* 32-element constant array based on constant C. gftbl(C) = {C{00},
|
||||
* C{01}, C{02}, ... , C{0f} }, {C{00}, C{10}, C{20}, ... , C{f0} }.
|
||||
* Len and src must be aligned to 32B.
|
||||
*
|
||||
* This function determines what instruction sets are enabled
|
||||
* and selects the appropriate version at runtime.
|
||||
*
|
||||
* @param len Length of vector in bytes. Must be aligned to 32B.
|
||||
* @param gftbl Pointer to 32-byte array of pre-calculated constants based on C.
|
||||
* @param src Pointer to src data array. Must be aligned to 32B.
|
||||
* @param dest Pointer to destination data array. Must be aligned to 32B.
|
||||
* @returns 0 pass, other fail
|
||||
*/
|
||||
int h_gf_vect_mul(int len, unsigned char *gftbl, void *src, void *dest);
|
||||
|
||||
|
||||
#endif //_GF_UTIL_H
|
||||
|
|
@ -49,6 +49,16 @@ JNIEXPORT jboolean JNICALL Java_org_apache_hadoop_util_NativeCodeLoader_buildSup
|
|||
#endif
|
||||
}
|
||||
|
||||
JNIEXPORT jboolean JNICALL Java_org_apache_hadoop_util_NativeCodeLoader_buildSupportsIsal
|
||||
(JNIEnv *env, jclass clazz)
|
||||
{
|
||||
#ifdef HADOOP_ISAL_LIBRARY
|
||||
return JNI_TRUE;
|
||||
#else
|
||||
return JNI_FALSE;
|
||||
#endif
|
||||
}
|
||||
|
||||
JNIEXPORT jstring JNICALL Java_org_apache_hadoop_util_NativeCodeLoader_getLibraryName
|
||||
(JNIEnv *env, jclass clazz)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -0,0 +1,310 @@
|
|||
/**
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
/**
|
||||
* This is a lightweight version of the same file in Intel ISA-L library to test
|
||||
* and verify the basic functions of ISA-L integration. Note it's not serving as
|
||||
* a complete ISA-L library test nor as any sample to write an erasure coder
|
||||
* using the library. A sample is to be written and provided separately.
|
||||
*/
|
||||
|
||||
#include "org_apache_hadoop.h"
|
||||
#include "erasure_code.h"
|
||||
#include "gf_util.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#define TEST_LEN 8192
|
||||
#define TEST_SOURCES 127
|
||||
#define MMAX TEST_SOURCES
|
||||
#define KMAX TEST_SOURCES
|
||||
#define TEST_SEED 11
|
||||
|
||||
static void dump(unsigned char *buf, int len)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < len;) {
|
||||
printf(" %2x", 0xff & buf[i++]);
|
||||
if (i % 32 == 0)
|
||||
printf("\n");
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
static void dump_matrix(unsigned char **s, int k, int m)
|
||||
{
|
||||
int i, j;
|
||||
for (i = 0; i < k; i++) {
|
||||
for (j = 0; j < m; j++) {
|
||||
printf(" %2x", s[i][j]);
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
static void dump_u8xu8(unsigned char *s, int k, int m)
|
||||
{
|
||||
int i, j;
|
||||
for (i = 0; i < k; i++) {
|
||||
for (j = 0; j < m; j++) {
|
||||
printf(" %2x", 0xff & s[j + (i * m)]);
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
// Generate Random errors
|
||||
static void gen_err_list(unsigned char *src_err_list,
|
||||
unsigned char *src_in_err, int *pnerrs, int *pnsrcerrs, int k, int m)
|
||||
{
|
||||
int i, err;
|
||||
int nerrs = 0, nsrcerrs = 0;
|
||||
|
||||
for (i = 0, nerrs = 0, nsrcerrs = 0; i < m && nerrs < m - k; i++) {
|
||||
err = 1 & rand();
|
||||
src_in_err[i] = err;
|
||||
if (err) {
|
||||
src_err_list[nerrs++] = i;
|
||||
if (i < k) {
|
||||
nsrcerrs++;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (nerrs == 0) { // should have at least one error
|
||||
while ((err = (rand() % KMAX)) >= m) ;
|
||||
src_err_list[nerrs++] = err;
|
||||
src_in_err[err] = 1;
|
||||
if (err < k)
|
||||
nsrcerrs = 1;
|
||||
}
|
||||
*pnerrs = nerrs;
|
||||
*pnsrcerrs = nsrcerrs;
|
||||
return;
|
||||
}
|
||||
|
||||
#define NO_INVERT_MATRIX -2
|
||||
// Generate decode matrix from encode matrix
|
||||
static int gf_gen_decode_matrix(unsigned char *encode_matrix,
|
||||
unsigned char *decode_matrix,
|
||||
unsigned char *invert_matrix,
|
||||
unsigned int *decode_index,
|
||||
unsigned char *src_err_list,
|
||||
unsigned char *src_in_err,
|
||||
int nerrs, int nsrcerrs, int k, int m)
|
||||
{
|
||||
int i, j, p;
|
||||
int r;
|
||||
unsigned char *backup, *b, s;
|
||||
int incr = 0;
|
||||
|
||||
b = malloc(MMAX * KMAX);
|
||||
backup = malloc(MMAX * KMAX);
|
||||
|
||||
if (b == NULL || backup == NULL) {
|
||||
printf("Test failure! Error with malloc\n");
|
||||
free(b);
|
||||
free(backup);
|
||||
return -1;
|
||||
}
|
||||
// Construct matrix b by removing error rows
|
||||
for (i = 0, r = 0; i < k; i++, r++) {
|
||||
while (src_in_err[r])
|
||||
r++;
|
||||
for (j = 0; j < k; j++) {
|
||||
b[k * i + j] = encode_matrix[k * r + j];
|
||||
backup[k * i + j] = encode_matrix[k * r + j];
|
||||
}
|
||||
decode_index[i] = r;
|
||||
}
|
||||
incr = 0;
|
||||
while (h_gf_invert_matrix(b, invert_matrix, k) < 0) {
|
||||
if (nerrs == (m - k)) {
|
||||
free(b);
|
||||
free(backup);
|
||||
printf("BAD MATRIX\n");
|
||||
return NO_INVERT_MATRIX;
|
||||
}
|
||||
incr++;
|
||||
memcpy(b, backup, MMAX * KMAX);
|
||||
for (i = nsrcerrs; i < nerrs - nsrcerrs; i++) {
|
||||
if (src_err_list[i] == (decode_index[k - 1] + incr)) {
|
||||
// skip the erased parity line
|
||||
incr++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if (decode_index[k - 1] + incr >= m) {
|
||||
free(b);
|
||||
free(backup);
|
||||
printf("BAD MATRIX\n");
|
||||
return NO_INVERT_MATRIX;
|
||||
}
|
||||
decode_index[k - 1] += incr;
|
||||
for (j = 0; j < k; j++)
|
||||
b[k * (k - 1) + j] = encode_matrix[k * decode_index[k - 1] + j];
|
||||
|
||||
};
|
||||
|
||||
for (i = 0; i < nsrcerrs; i++) {
|
||||
for (j = 0; j < k; j++) {
|
||||
decode_matrix[k * i + j] = invert_matrix[k * src_err_list[i] + j];
|
||||
}
|
||||
}
|
||||
/* src_err_list from encode_matrix * invert of b for parity decoding */
|
||||
for (p = nsrcerrs; p < nerrs; p++) {
|
||||
for (i = 0; i < k; i++) {
|
||||
s = 0;
|
||||
for (j = 0; j < k; j++)
|
||||
s ^= h_gf_mul(invert_matrix[j * k + i],
|
||||
encode_matrix[k * src_err_list[p] + j]);
|
||||
|
||||
decode_matrix[k * p + i] = s;
|
||||
}
|
||||
}
|
||||
free(b);
|
||||
free(backup);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
char err[256];
|
||||
size_t err_len = sizeof(err);
|
||||
int re, i, j, p, m, k;
|
||||
int nerrs, nsrcerrs;
|
||||
unsigned int decode_index[MMAX];
|
||||
unsigned char *temp_buffs[TEST_SOURCES], *buffs[TEST_SOURCES];
|
||||
unsigned char *encode_matrix, *decode_matrix, *invert_matrix, *g_tbls;
|
||||
unsigned char src_in_err[TEST_SOURCES], src_err_list[TEST_SOURCES];
|
||||
unsigned char *recov[TEST_SOURCES];
|
||||
|
||||
if (0 == build_support_erasurecode()) {
|
||||
printf("The native library isn't available, skipping this test\n");
|
||||
return 0; // Normal, not an error
|
||||
}
|
||||
|
||||
load_erasurecode_lib(err, err_len);
|
||||
if (strlen(err) > 0) {
|
||||
printf("Loading erasurecode library failed: %s\n", err);
|
||||
return -1;
|
||||
}
|
||||
|
||||
printf("Performing erasure code test\n");
|
||||
srand(TEST_SEED);
|
||||
|
||||
// Allocate the arrays
|
||||
for (i = 0; i < TEST_SOURCES; i++) {
|
||||
buffs[i] = malloc(TEST_LEN);
|
||||
}
|
||||
|
||||
for (i = 0; i < TEST_SOURCES; i++) {
|
||||
temp_buffs[i] = malloc(TEST_LEN);
|
||||
}
|
||||
|
||||
// Test erasure code by encode and recovery
|
||||
|
||||
encode_matrix = malloc(MMAX * KMAX);
|
||||
decode_matrix = malloc(MMAX * KMAX);
|
||||
invert_matrix = malloc(MMAX * KMAX);
|
||||
g_tbls = malloc(KMAX * TEST_SOURCES * 32);
|
||||
if (encode_matrix == NULL || decode_matrix == NULL
|
||||
|| invert_matrix == NULL || g_tbls == NULL) {
|
||||
snprintf(err, err_len, "%s", "allocating test matrix buffers error");
|
||||
return -1;
|
||||
}
|
||||
|
||||
m = 9;
|
||||
k = 5;
|
||||
if (m > MMAX || k > KMAX)
|
||||
return -1;
|
||||
|
||||
// Make random data
|
||||
for (i = 0; i < k; i++)
|
||||
for (j = 0; j < TEST_LEN; j++)
|
||||
buffs[i][j] = rand();
|
||||
|
||||
// The matrix generated by gf_gen_cauchy1_matrix
|
||||
// is always invertable.
|
||||
h_gf_gen_cauchy_matrix(encode_matrix, m, k);
|
||||
|
||||
// Generate g_tbls from encode matrix encode_matrix
|
||||
h_ec_init_tables(k, m - k, &encode_matrix[k * k], g_tbls);
|
||||
|
||||
// Perform matrix dot_prod for EC encoding
|
||||
// using g_tbls from encode matrix encode_matrix
|
||||
h_ec_encode_data(TEST_LEN, k, m - k, g_tbls, buffs, &buffs[k]);
|
||||
|
||||
// Choose random buffers to be in erasure
|
||||
memset(src_in_err, 0, TEST_SOURCES);
|
||||
gen_err_list(src_err_list, src_in_err, &nerrs, &nsrcerrs, k, m);
|
||||
|
||||
// Generate decode matrix
|
||||
re = gf_gen_decode_matrix(encode_matrix, decode_matrix,
|
||||
invert_matrix, decode_index, src_err_list, src_in_err,
|
||||
nerrs, nsrcerrs, k, m);
|
||||
if (re != 0) {
|
||||
snprintf(err, err_len, "%s", "gf_gen_decode_matrix failed");
|
||||
return -1;
|
||||
}
|
||||
// Pack recovery array as list of valid sources
|
||||
// Its order must be the same as the order
|
||||
// to generate matrix b in gf_gen_decode_matrix
|
||||
for (i = 0; i < k; i++) {
|
||||
recov[i] = buffs[decode_index[i]];
|
||||
}
|
||||
|
||||
// Recover data
|
||||
h_ec_init_tables(k, nerrs, decode_matrix, g_tbls);
|
||||
h_ec_encode_data(TEST_LEN, k, nerrs, g_tbls, recov, &temp_buffs[k]);
|
||||
for (i = 0; i < nerrs; i++) {
|
||||
if (0 != memcmp(temp_buffs[k + i], buffs[src_err_list[i]], TEST_LEN)) {
|
||||
snprintf(err, err_len, "%s", "Error recovery failed");
|
||||
printf("Fail error recovery (%d, %d, %d)\n", m, k, nerrs);
|
||||
|
||||
printf(" - erase list = ");
|
||||
for (j = 0; j < nerrs; j++) {
|
||||
printf(" %d", src_err_list[j]);
|
||||
}
|
||||
|
||||
printf(" - Index = ");
|
||||
for (p = 0; p < k; p++) {
|
||||
printf(" %d", decode_index[p]);
|
||||
}
|
||||
|
||||
printf("\nencode_matrix:\n");
|
||||
dump_u8xu8((unsigned char *) encode_matrix, m, k);
|
||||
printf("inv b:\n");
|
||||
dump_u8xu8((unsigned char *) invert_matrix, k, k);
|
||||
printf("\ndecode_matrix:\n");
|
||||
dump_u8xu8((unsigned char *) decode_matrix, m, k);
|
||||
printf("recov %d:", src_err_list[i]);
|
||||
dump(temp_buffs[k + i], 25);
|
||||
printf("orig :");
|
||||
dump(buffs[src_err_list[i]], 25);
|
||||
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
printf("done EC tests: Pass\n");
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -41,6 +41,7 @@
|
|||
<hadoop.component>UNDEF</hadoop.component>
|
||||
<bundle.snappy>false</bundle.snappy>
|
||||
<bundle.snappy.in.bin>false</bundle.snappy.in.bin>
|
||||
<bundle.isal>true</bundle.isal>
|
||||
<bundle.openssl>false</bundle.openssl>
|
||||
<bundle.openssl.in.bin>false</bundle.openssl.in.bin>
|
||||
</properties>
|
||||
|
|
@ -348,14 +349,22 @@
|
|||
mkdir -p $${TARGET_DIR}
|
||||
cd $${LIB_DIR}
|
||||
$$TAR lib* | (cd $${TARGET_DIR}/; $$UNTAR)
|
||||
if [ "${bundle.snappy}" = "true" ] ; then
|
||||
if [ "X${bundle.snappy}" = "Xtrue" ] ; then
|
||||
cd "${snappy.lib}"
|
||||
$$TAR *snappy* | (cd $${TARGET_DIR}/; $$UNTAR)
|
||||
fi
|
||||
if [ "${bundle.openssl}" = "true" ] ; then
|
||||
if [ "X${bundle.openssl}" = "Xtrue" ] ; then
|
||||
cd "${openssl.lib}"
|
||||
$$TAR *crypto* | (cd $${TARGET_DIR}/; $$UNTAR)
|
||||
fi
|
||||
if [ "X${bundle.isal}" = "Xtrue" ] ; then
|
||||
if [ "X${isal.lib}" != "X" ]; then
|
||||
cd "${isal.lib}"
|
||||
$$TAR *isa* | (cd $${TARGET_DIR}/; $$UNTAR)
|
||||
else
|
||||
echo "The required option isal.lib isn't given, bundling ISA-L skipped"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
BIN_DIR="${BUILD_DIR}/bin"
|
||||
if [ -d $${BIN_DIR} ] ; then
|
||||
|
|
|
|||
|
|
@ -1272,6 +1272,7 @@
|
|||
<!-- Specify where to look for the native DLL on Windows -->
|
||||
<PATH>${env.PATH};${hadoop.common.build.dir}/bin;${snappy.lib}</PATH>
|
||||
<PATH>${env.PATH};${hadoop.common.build.dir}/bin;${openssl.lib}</PATH>
|
||||
<PATH>${env.PATH};${hadoop.common.build.dir}/bin;${isal.lib}</PATH>
|
||||
</environmentVariables>
|
||||
</configuration>
|
||||
</plugin>
|
||||
|
|
|
|||
Loading…
Reference in New Issue