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HADOOP-11996. Improve and restructure native ISAL support (Kai Zheng via cmccabe)

This commit is contained in:
Colin Patrick Mccabe 2016-03-11 12:56:12 -08:00
parent 6e9a582eb1
commit 658ee95ff3
21 changed files with 1256 additions and 511 deletions
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20
hadoop-common-project/hadoop-common/src/CMakeLists.txt
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@ -103,12 +103,24 @@ find_library(ISAL_LIBRARY
set(CMAKE_FIND_LIBRARY_SUFFIXES ${STORED_CMAKE_FIND_LIBRARY_SUFFIXES})
if (ISAL_LIBRARY)
GET_FILENAME_COMPONENT(HADOOP_ISAL_LIBRARY ${ISAL_LIBRARY} NAME)
set(ISAL_INCLUDE_DIR ${SRC}/io/erasurecode/include)
set(ISAL_INCLUDE_DIR ${SRC}/io/erasurecode)
set(ISAL_SOURCE_FILES
${SRC}/io/erasurecode/coder/erasure_code_native.c
${SRC}/io/erasurecode/erasure_code.c)
add_executable(erasure_code_test
${SRC}/io/erasurecode/isal_load.c
${SRC}/io/erasurecode/erasure_code.c
${SRC}/io/erasurecode/gf_util.c
${SRC}/io/erasurecode/dump.c
${SRC}/io/erasurecode/erasure_coder.c
${SRC}/io/erasurecode/jni_erasure_code_native.c
${SRC}/io/erasurecode/jni_common.c
${SRC}/io/erasurecode/jni_rs_encoder.c
${SRC}/io/erasurecode/jni_rs_decoder.c)
add_executable(erasure_code_test
${SRC}/io/erasurecode/isal_load.c
${SRC}/io/erasurecode/erasure_code.c
${SRC}/io/erasurecode/gf_util.c
${SRC}/io/erasurecode/dump.c
${SRC}/io/erasurecode/erasure_coder.c
${TST}/io/erasurecode/erasure_code_test.c
)
target_link_libraries(erasure_code_test ${CMAKE_DL_LIBS})

11
hadoop-common-project/hadoop-common/src/main/native/native.vcxproj
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@ -162,10 +162,17 @@
<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="'$(IsalEnabled)' == 'true'">
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\isal_load.c" Condition="'$(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="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\erasure_code.c" Condition="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\gf_util.c" Condition="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\erasure_coder.c" Condition="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\dump.c" Condition="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\jni_erasure_code_native.c" Condition="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\jni_common.c" Condition="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\jni_rs_encoder.c" Condition="'$(IsalEnabled)' == 'true'"/>
<ClCompile Include="src\org\apache\hadoop\io\erasurecode\jni_rs_decoder.c" Condition="'$(IsalEnabled)' == 'true'"/>
</ItemGroup>
<ItemGroup>
<ClInclude Include="..\src\org\apache\hadoop\util\crc32c_tables.h" />

100
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/dump.c Normal file
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@ -0,0 +1,100 @@
/**
* 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 "erasure_code.h"
#include "gf_util.h"
#include "erasure_coder.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
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");
}
}
void dumpMatrix(unsigned char** buf, int n1, int n2) {
int i, j;
for (i = 0; i < n1; i++) {
for (j = 0; j < n2; j++) {
printf(" %2x", buf[i][j]);
}
printf("\n");
}
printf("\n");
}
void dumpCodingMatrix(unsigned char* buf, int n1, int n2) {
int i, j;
for (i = 0; i < n1; i++) {
for (j = 0; j < n2; j++) {
printf(" %d", 0xff & buf[j + (i * n2)]);
}
printf("\n");
}
printf("\n");
}
void dumpEncoder(IsalEncoder* pCoder) {
int numDataUnits = pCoder->coder.numDataUnits;
int numParityUnits = pCoder->coder.numDataUnits;
int numAllUnits = pCoder->coder.numAllUnits;
printf("Encoding (numAlnumParityUnitslUnits = %d, numDataUnits = %d)\n",
numParityUnits, numDataUnits);
printf("\n\nEncodeMatrix:\n");
dumpCodingMatrix((unsigned char*) pCoder->encodeMatrix,
numDataUnits, numAllUnits);
}
void dumpDecoder(IsalDecoder* pCoder) {
int i, j;
int numDataUnits = pCoder->coder.numDataUnits;
int numAllUnits = pCoder->coder.numAllUnits;
printf("Recovering (numAllUnits = %d, numDataUnits = %d, numErased = %d)\n",
numAllUnits, numDataUnits, pCoder->numErased);
printf(" - ErasedIndexes = ");
for (j = 0; j < pCoder->numErased; j++) {
printf(" %d", pCoder->erasedIndexes[j]);
}
printf(" - DecodeIndex = ");
for (i = 0; i < numDataUnits; i++) {
printf(" %d", pCoder->decodeIndex[i]);
}
printf("\n\nEncodeMatrix:\n");
dumpCodingMatrix((unsigned char*) pCoder->encodeMatrix,
numDataUnits, numAllUnits);
printf("InvertMatrix:\n");
dumpCodingMatrix((unsigned char*) pCoder->invertMatrix,
numDataUnits, numDataUnits);
printf("DecodeMatrix:\n");
dumpCodingMatrix((unsigned char*) pCoder->decodeMatrix,
numDataUnits, numAllUnits);
}

40
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/dump.h Normal file
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@ -0,0 +1,40 @@
/**
* 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.
*/
/**
* Dump utilities for erasure coders.
*/
#ifndef _DUMP_H_
#define _DUMP_H_
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void dumpEncoder(IsalEncoder* pCoder);
void dumpDecoder(IsalDecoder* pCoder);
void dump(unsigned char* buf, int len);
void dumpMatrix(unsigned char** s, int k, int m);
void dumpCodingMatrix(unsigned char* s, int n1, int n2);
#endif //_DUMP_H_

239
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/erasure_code.c
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@ -20,252 +20,25 @@
#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
#include "isal_load.h"
#include "erasure_code.h"
/**
* 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.
* Implementation erasure code utilities based on ISA-L 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);
isaLoader->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);
isaLoader->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);
isaLoader->ec_encode_data_update(len, k, rows, vec_i, gftbls, data, coding);
}

18
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/include/erasure_code.h → hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/erasure_code.h
View File

@ -37,24 +37,6 @@
*
*/
/**
* 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.
*

229
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/erasure_coder.c Normal file
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@ -0,0 +1,229 @@
/**
* 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 "erasure_code.h"
#include "gf_util.h"
#include "erasure_coder.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void initCoder(IsalCoder* pCoder, int numDataUnits, int numParityUnits) {
pCoder->verbose = 0;
pCoder->numParityUnits = numParityUnits;
pCoder->numDataUnits = numDataUnits;
pCoder->numAllUnits = numDataUnits + numParityUnits;
}
// 0 not to verbose, 1 to verbose
void allowVerbose(IsalCoder* pCoder, int flag) {
pCoder->verbose = flag;
}
static void initEncodeMatrix(int numDataUnits, int numParityUnits,
unsigned char* encodeMatrix) {
// Generate encode matrix, always invertible
h_gf_gen_cauchy_matrix(encodeMatrix,
numDataUnits + numParityUnits, numDataUnits);
}
void initEncoder(IsalEncoder* pCoder, int numDataUnits,
int numParityUnits) {
initCoder(&pCoder->coder, numDataUnits, numParityUnits);
initEncodeMatrix(numDataUnits, numParityUnits, pCoder->encodeMatrix);
// Generate gftbls from encode matrix
h_ec_init_tables(numDataUnits, numParityUnits,
&pCoder->encodeMatrix[numDataUnits * numDataUnits],
pCoder->gftbls);
if (pCoder->coder.verbose > 0) {
dumpEncoder(pCoder);
}
}
void initDecoder(IsalDecoder* pCoder, int numDataUnits,
int numParityUnits) {
initCoder(&pCoder->coder, numDataUnits, numParityUnits);
initEncodeMatrix(numDataUnits, numParityUnits, pCoder->encodeMatrix);
}
int encode(IsalEncoder* pCoder, unsigned char** dataUnits,
unsigned char** parityUnits, int chunkSize) {
int numDataUnits = pCoder->coder.numDataUnits;
int numParityUnits = pCoder->coder.numParityUnits;
int i;
for (i = 0; i < numParityUnits; i++) {
memset(parityUnits[i], 0, chunkSize);
}
h_ec_encode_data(chunkSize, numDataUnits, numParityUnits,
pCoder->gftbls, dataUnits, parityUnits);
return 0;
}
// Return 1 when diff, 0 otherwise
static int compare(int* arr1, int len1, int* arr2, int len2) {
int i;
if (len1 == len2) {
for (i = 0; i < len1; i++) {
if (arr1[i] != arr2[i]) {
return 1;
}
}
return 0;
}
return 1;
}
static int processErasures(IsalDecoder* pCoder, unsigned char** inputs,
int* erasedIndexes, int numErased) {
int i, r, ret, index;
int numDataUnits = pCoder->coder.numDataUnits;
int isChanged = 0;
for (i = 0, r = 0; i < numDataUnits; i++, r++) {
while (inputs[r] == NULL) {
r++;
}
if (pCoder->decodeIndex[i] != r) {
pCoder->decodeIndex[i] = r;
isChanged = 1;
}
}
for (i = 0; i < numDataUnits; i++) {
pCoder->realInputs[i] = inputs[pCoder->decodeIndex[i]];
}
if (isChanged == 0 &&
compare(pCoder->erasedIndexes, pCoder->numErased,
erasedIndexes, numErased) == 0) {
return 0; // Optimization, nothing to do
}
clearDecoder(pCoder);
for (i = 0; i < numErased; i++) {
index = erasedIndexes[i];
pCoder->erasedIndexes[i] = index;
pCoder->erasureFlags[index] = 1;
if (index < numDataUnits) {
pCoder->numErasedDataUnits++;
}
}
pCoder->numErased = numErased;
ret = generateDecodeMatrix(pCoder);
if (ret != 0) {
printf("Failed to generate decode matrix\n");
return -1;
}
h_ec_init_tables(numDataUnits, pCoder->numErased,
pCoder->decodeMatrix, pCoder->gftbls);
if (pCoder->coder.verbose > 0) {
dumpDecoder(pCoder);
}
return 0;
}
int decode(IsalDecoder* pCoder, unsigned char** inputs,
int* erasedIndexes, int numErased,
unsigned char** outputs, int chunkSize) {
int numDataUnits = pCoder->coder.numDataUnits;
int i;
processErasures(pCoder, inputs, erasedIndexes, numErased);
for (i = 0; i < numErased; i++) {
memset(outputs[i], 0, chunkSize);
}
h_ec_encode_data(chunkSize, numDataUnits, pCoder->numErased,
pCoder->gftbls, pCoder->realInputs, outputs);
return 0;
}
// Clear variables used per decode call
void clearDecoder(IsalDecoder* decoder) {
decoder->numErasedDataUnits = 0;
decoder->numErased = 0;
memset(decoder->gftbls, 0, sizeof(decoder->gftbls));
memset(decoder->decodeMatrix, 0, sizeof(decoder->decodeMatrix));
memset(decoder->tmpMatrix, 0, sizeof(decoder->tmpMatrix));
memset(decoder->invertMatrix, 0, sizeof(decoder->invertMatrix));
memset(decoder->erasureFlags, 0, sizeof(decoder->erasureFlags));
memset(decoder->erasedIndexes, 0, sizeof(decoder->erasedIndexes));
}
// Generate decode matrix from encode matrix
int generateDecodeMatrix(IsalDecoder* pCoder) {
int i, j, r, p;
unsigned char s;
int numDataUnits;
numDataUnits = pCoder->coder.numDataUnits;
// Construct matrix b by removing error rows
for (i = 0; i < numDataUnits; i++) {
r = pCoder->decodeIndex[i];
for (j = 0; j < numDataUnits; j++) {
pCoder->tmpMatrix[numDataUnits * i + j] =
pCoder->encodeMatrix[numDataUnits * r + j];
}
}
h_gf_invert_matrix(pCoder->tmpMatrix,
pCoder->invertMatrix, numDataUnits);
for (i = 0; i < pCoder->numErasedDataUnits; i++) {
for (j = 0; j < numDataUnits; j++) {
pCoder->decodeMatrix[numDataUnits * i + j] =
pCoder->invertMatrix[numDataUnits *
pCoder->erasedIndexes[i] + j];
}
}
for (p = pCoder->numErasedDataUnits; p < pCoder->numErased; p++) {
for (i = 0; i < numDataUnits; i++) {
s = 0;
for (j = 0; j < numDataUnits; j++) {
s ^= h_gf_mul(pCoder->invertMatrix[j * numDataUnits + i],
pCoder->encodeMatrix[numDataUnits *
pCoder->erasedIndexes[p] + j]);
}
pCoder->decodeMatrix[numDataUnits * p + i] = s;
}
}
return 0;
}

88
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/erasure_coder.h Normal file
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@ -0,0 +1,88 @@
/**
* 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 sample program illustrating how to use the Intel ISA-L library.
* Note it's adapted from erasure_code_test.c test program, but trying to use
* variable names and styles we're more familiar with already similar to Java
* coders.
*/
#ifndef _ERASURE_CODER_H_
#define _ERASURE_CODER_H_
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MMAX 14
#define KMAX 10
typedef struct _IsalCoder {
int verbose;
int numParityUnits;
int numDataUnits;
int numAllUnits;
} IsalCoder;
typedef struct _IsalEncoder {
IsalCoder coder;
unsigned char gftbls[MMAX * KMAX * 32];
unsigned char encodeMatrix[MMAX * KMAX];
} IsalEncoder;
typedef struct _IsalDecoder {
IsalCoder coder;
unsigned char encodeMatrix[MMAX * KMAX];
// Below are per decode call
unsigned char gftbls[MMAX * KMAX * 32];
unsigned int decodeIndex[MMAX];
unsigned char tmpMatrix[MMAX * KMAX];
unsigned char invertMatrix[MMAX * KMAX];
unsigned char decodeMatrix[MMAX * KMAX];
unsigned char erasureFlags[MMAX];
int erasedIndexes[MMAX];
int numErased;
int numErasedDataUnits;
unsigned char* realInputs[MMAX];
} IsalDecoder;
void initCoder(IsalCoder* pCoder, int numDataUnits, int numParityUnits);
void allowVerbose(IsalCoder* pCoder, int flag);
void initEncoder(IsalEncoder* encoder, int numDataUnits, int numParityUnits);
void initDecoder(IsalDecoder* decoder, int numDataUnits, int numParityUnits);
void clearDecoder(IsalDecoder* decoder);
int encode(IsalEncoder* encoder, unsigned char** dataUnits,
unsigned char** parityUnits, int chunkSize);
int decode(IsalDecoder* decoder, unsigned char** allUnits,
int* erasedIndexes, int numErased,
unsigned char** recoveredUnits, int chunkSize);
int generateDecodeMatrix(IsalDecoder* pCoder);
#endif //_ERASURE_CODER_H_

54
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/gf_util.c Normal file
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@ -0,0 +1,54 @@
/*
* 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 "isal_load.h"
#include "gf_util.h"
/**
* gf_util.c
* Implementation GF utilities based on ISA-L library.
*
*/
unsigned char h_gf_mul(unsigned char a, unsigned char b) {
return isaLoader->gf_mul(a, b);
}
unsigned char h_gf_inv(unsigned char a) {
return isaLoader->gf_inv(a);
}
void h_gf_gen_rs_matrix(unsigned char *a, int m, int k) {
isaLoader->gf_gen_rs_matrix(a, m, k);
}
void h_gf_gen_cauchy_matrix(unsigned char *a, int m, int k) {
isaLoader->gf_gen_cauchy_matrix(a, m, k);
}
int h_gf_invert_matrix(unsigned char *in, unsigned char *out, const int n) {
return isaLoader->gf_invert_matrix(in, out, n);
}
int h_gf_vect_mul(int len, unsigned char *gftbl, void *src, void *dest) {
return isaLoader->gf_vect_mul(len, gftbl, src, dest);
}

0
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/include/gf_util.h → hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/gf_util.h
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148
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/isal_load.c Normal file
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@ -0,0 +1,148 @@
/*
* 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 "isal_load.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
IsaLibLoader* isaLoader;
/**
* isal_load.c
* Utility of loading the ISA-L library and the required functions.
* 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.
*
*/
static const char* load_functions() {
#ifdef UNIX
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->gf_mul), "gf_mul");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->gf_inv), "gf_inv");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->gf_gen_rs_matrix), "gf_gen_rs_matrix");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->gf_gen_cauchy_matrix), "gf_gen_cauchy1_matrix");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->gf_invert_matrix), "gf_invert_matrix");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->gf_vect_mul), "gf_vect_mul");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->ec_init_tables), "ec_init_tables");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->ec_encode_data), "ec_encode_data");
EC_LOAD_DYNAMIC_SYMBOL((isaLoader->ec_encode_data_update), "ec_encode_data_update");
#endif
#ifdef WINDOWS
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_mul, (isaLoader->gf_mul), "gf_mul");
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_inv, (isaLoader->gf_inv), "gf_inv");
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_gen_rs_matrix, (isaLoader->gf_gen_rs_matrix), "gf_gen_rs_matrix");
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_gen_cauchy_matrix, (isaLoader->gf_gen_cauchy_matrix), "gf_gen_cauchy1_matrix");
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_invert_matrix, (isaLoader->gf_invert_matrix), "gf_invert_matrix");
EC_LOAD_DYNAMIC_SYMBOL(__d_gf_vect_mul, (isaLoader->gf_vect_mul), "gf_vect_mul");
EC_LOAD_DYNAMIC_SYMBOL(__d_ec_init_tables, (isaLoader->ec_init_tables), "ec_init_tables");
EC_LOAD_DYNAMIC_SYMBOL(__d_ec_encode_data, (isaLoader->ec_encode_data), "ec_encode_data");
EC_LOAD_DYNAMIC_SYMBOL(__d_ec_encode_data_update, (isaLoader->ec_encode_data_update), "ec_encode_data_update");
#endif
return NULL;
}
void load_erasurecode_lib(char* err, size_t err_len) {
const char* errMsg;
err[0] = '\0';
if (isaLoader != NULL) {
return;
}
isaLoader = calloc(1, sizeof(IsaLibLoader));
memset(isaLoader, 0, sizeof(IsaLibLoader));
// Load Intel ISA-L
#ifdef UNIX
isaLoader->libec = dlopen(HADOOP_ISAL_LIBRARY, RTLD_LAZY | RTLD_GLOBAL);
if (isaLoader->libec == NULL) {
snprintf(err, err_len, "Failed to load %s (%s)",
HADOOP_ISAL_LIBRARY, dlerror());
return;
}
// Clear any existing error
dlerror();
#endif
#ifdef WINDOWS
isaLoader->libec = LoadLibrary(HADOOP_ISAL_LIBRARY);
if (isaLoader->libec == NULL) {
snprintf(err, err_len, "Failed to load %s", HADOOP_ISAL_LIBRARY);
return;
}
#endif
errMsg = load_functions(isaLoader->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 (isaLoader->ec_encode_data == NULL) {
return HADOOP_ISAL_LIBRARY;
}
if(dladdr(isaLoader->ec_encode_data, &dl_info)) {
return dl_info.dli_fname;
}
#else
LPTSTR filename = NULL;
if (isaLoader->libec == NULL) {
return HADOOP_ISAL_LIBRARY;
}
if (GetModuleFileName(isaLoader->libec, filename, 256) > 0) {
return filename;
}
#endif
return NULL;
}

149
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/isal_load.h Normal file
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@ -0,0 +1,149 @@
/*
* 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"
#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
#ifndef _ISAL_LOAD_H_
#define _ISAL_LOAD_H_
#ifdef UNIX
// For gf_util.h
typedef unsigned char (*__d_gf_mul)(unsigned char, unsigned char);
typedef unsigned char (*__d_gf_inv)(unsigned char);
typedef void (*__d_gf_gen_rs_matrix)(unsigned char *, int, int);
typedef void (*__d_gf_gen_cauchy_matrix)(unsigned char *, int, int);
typedef int (*__d_gf_invert_matrix)(unsigned char *, unsigned char *, const int);
typedef int (*__d_gf_vect_mul)(int, unsigned char *, void *, void *);
// For erasure_code.h
typedef void (*__d_ec_init_tables)(int, int, unsigned char*, unsigned char*);
typedef void (*__d_ec_encode_data)(int, int, int, unsigned char*,
unsigned char**, unsigned char**);
typedef 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);
typedef unsigned char (__cdecl *__d_gf_inv)(unsigned char);
typedef void (__cdecl *__d_gf_gen_rs_matrix)(unsigned char *, int, int);
typedef void (__cdecl *__d_gf_gen_cauchy_matrix)(unsigned char *, int, int);
typedef int (__cdecl *__d_gf_invert_matrix)(unsigned char *,
unsigned char *, const int);
typedef int (__cdecl *__d_gf_vect_mul)(int, unsigned char *, void *, void *);
// For erasure_code.h
typedef void (__cdecl *__d_ec_init_tables)(int, int,
unsigned char*, unsigned char*);
typedef void (__cdecl *__d_ec_encode_data)(int, int, int, unsigned char*,
unsigned char**, unsigned char**);
typedef void (__cdecl *__d_ec_encode_data_update)(int, int, int, int, unsigned char*,
unsigned char*, unsigned char**);
#endif
typedef struct __IsaLibLoader {
// The loaded library handle
void* libec;
__d_gf_mul gf_mul;
__d_gf_inv gf_inv;
__d_gf_gen_rs_matrix gf_gen_rs_matrix;
__d_gf_gen_cauchy_matrix gf_gen_cauchy_matrix;
__d_gf_invert_matrix gf_invert_matrix;
__d_gf_vect_mul gf_vect_mul;
__d_ec_init_tables ec_init_tables;
__d_ec_encode_data ec_encode_data;
__d_ec_encode_data_update ec_encode_data_update;
} IsaLibLoader;
extern IsaLibLoader* isaLoader;
/**
* A helper function to dlsym a 'symbol' from a given library-handle.
*/
#ifdef UNIX
static __attribute__ ((unused))
void *myDlsym(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, symbol) \
if ((func_ptr = myDlsym(isaLoader->libec, symbol)) == NULL) { \
return "Failed to load symbol" symbol; \
}
#endif
#ifdef WINDOWS
static FARPROC WINAPI myDlsym(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, symbol) \
if ((func_ptr = (func_type)myDlsym(isaLoader->libec, symbol)) == NULL) { \
return "Failed to load symbol" symbol; \
}
#endif
/**
* 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);
#endif //_ISAL_LOAD_H_

98
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_common.c Normal file
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@ -0,0 +1,98 @@
/**
* 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 "isal_load.h"
#include "erasure_code.h"
#include "jni_common.h"
void loadLib(JNIEnv *env) {
char errMsg[1024];
load_erasurecode_lib(errMsg, sizeof(errMsg));
if (strlen(errMsg) > 0) {
THROW(env, "java/lang/UnsatisfiedLinkError", errMsg);
}
}
void setCoder(JNIEnv* env, jobject thiz, IsalCoder* pCoder) {
jclass clazz = (*env)->GetObjectClass(env, thiz);
jfieldID __coderState = (*env)->GetFieldID(env, clazz, "__native_coder", "J");
(*env)->SetLongField(env, thiz, __coderState, (jlong) pCoder);
}
IsalCoder* getCoder(JNIEnv* env, jobject thiz) {
jclass clazz = (*env)->GetObjectClass(env, thiz);
jfieldID __verbose = (*env)->GetFieldID(env, clazz, "__native_verbose", "J");
int verbose = (int)(*env)->GetIntField(env, thiz, __verbose);
jfieldID __coderState = (*env)->GetFieldID(env, clazz, "__native_coder", "J");
IsalCoder* pCoder = (IsalCoder*)(*env)->GetLongField(env,
thiz, __coderState);
pCoder->verbose = verbose;
return pCoder;
}
void getInputs(JNIEnv *env, jobjectArray inputs, jintArray inputOffsets,
unsigned char** destInputs, int num) {
int numInputs = (*env)->GetArrayLength(env, inputs);
int* tmpInputOffsets;
int i;
jobject byteBuffer;
if (numInputs != num) {
THROW(env, "java/lang/InternalError", "Invalid inputs");
}
tmpInputOffsets = (int*)(*env)->GetIntArrayElements(env,
inputOffsets, NULL);
for (i = 0; i < numInputs; i++) {
byteBuffer = (*env)->GetObjectArrayElement(env, inputs, i);
if (byteBuffer != NULL) {
destInputs[i] = (unsigned char *)((*env)->GetDirectBufferAddress(env,
byteBuffer));
destInputs[i] += tmpInputOffsets[i];
} else {
destInputs[i] = NULL;
}
}
}
void getOutputs(JNIEnv *env, jobjectArray outputs, jintArray outputOffsets,
unsigned char** destOutputs, int num) {
int numOutputs = (*env)->GetArrayLength(env, outputs);
int i, *tmpOutputOffsets;
jobject byteBuffer;
if (numOutputs != num) {
THROW(env, "java/lang/InternalError", "Invalid outputs");
}
tmpOutputOffsets = (int*)(*env)->GetIntArrayElements(env,
outputOffsets, NULL);
for (i = 0; i < numOutputs; i++) {
byteBuffer = (*env)->GetObjectArrayElement(env, outputs, i);
destOutputs[i] = (unsigned char *)((*env)->GetDirectBufferAddress(env,
byteBuffer));
destOutputs[i] += tmpOutputOffsets[i];
}
}

42
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_common.h Normal file
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@ -0,0 +1,42 @@
/**
* 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 _JNI_CODER_COMMON_H_
#define _JNI_CODER_COMMON_H_
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <jni.h>
#include "erasure_coder.h"
void loadLib(JNIEnv *env);
void setCoder(JNIEnv* env, jobject thiz, IsalCoder* coder);
IsalCoder* getCoder(JNIEnv* env, jobject thiz);
void getInputs(JNIEnv *env, jobjectArray inputs, jintArray inputOffsets,
unsigned char** destInputs, int num);
void getOutputs(JNIEnv *env, jobjectArray outputs, jintArray outputOffsets,
unsigned char** destOutputs, int num);
#endif //_JNI_CODER_COMMON_H_

8
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/coder/erasure_code_native.c → hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_erasure_code_native.c
View File

@ -21,7 +21,7 @@
#include <string.h>
#include "org_apache_hadoop.h"
#include "../include/erasure_code.h"
#include "jni_common.h"
#include "org_apache_hadoop_io_erasurecode_ErasureCodeNative.h"
#ifdef UNIX
@ -31,11 +31,7 @@
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);
}
loadLib(env);
}
JNIEXPORT jstring JNICALL

72
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_rs_decoder.c Normal file
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@ -0,0 +1,72 @@
/**
* 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 "erasure_code.h"
#include "gf_util.h"
#include "jni_common.h"
#include "org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder.h"
typedef struct _RSDecoder {
IsalDecoder decoder;
unsigned char* inputs[MMAX];
unsigned char* outputs[MMAX];
} RSDecoder;
JNIEXPORT void JNICALL
Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder_initImpl(
JNIEnv *env, jobject thiz, jint numDataUnits, jint numParityUnits) {
RSDecoder* rsDecoder = (RSDecoder*)malloc(sizeof(RSDecoder));
memset(rsDecoder, 0, sizeof(*rsDecoder));
initDecoder(&rsDecoder->decoder, (int)numDataUnits, (int)numParityUnits);
setCoder(env, thiz, &rsDecoder->decoder.coder);
}
JNIEXPORT void JNICALL
Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder_decodeImpl(
JNIEnv *env, jobject thiz, jobjectArray inputs, jintArray inputOffsets,
jint dataLen, jintArray erasedIndexes, jobjectArray outputs,
jintArray outputOffsets) {
RSDecoder* rsDecoder = (RSDecoder*)getCoder(env, thiz);
int numDataUnits = rsDecoder->decoder.coder.numDataUnits;
int numParityUnits = rsDecoder->decoder.coder.numParityUnits;
int chunkSize = (int)dataLen;
int* tmpErasedIndexes = (int*)(*env)->GetIntArrayElements(env,
erasedIndexes, NULL);
int numErased = (*env)->GetArrayLength(env, erasedIndexes);
getInputs(env, inputs, inputOffsets, rsDecoder->inputs,
numDataUnits + numParityUnits);
getOutputs(env, outputs, outputOffsets, rsDecoder->outputs, numErased);
decode(&rsDecoder->decoder, rsDecoder->inputs, tmpErasedIndexes,
numErased, rsDecoder->outputs, chunkSize);
}
JNIEXPORT void JNICALL
Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder_destroyImpl(
JNIEnv *env, jobject thiz) {
RSDecoder* rsDecoder = (RSDecoder*)getCoder(env, thiz);
free(rsDecoder);
}

66
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_rs_encoder.c Normal file
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@ -0,0 +1,66 @@
/**
* 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 "erasure_code.h"
#include "gf_util.h"
#include "jni_common.h"
#include "org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder.h"
typedef struct _RSEncoder {
IsalEncoder encoder;
unsigned char* inputs[MMAX];
unsigned char* outputs[MMAX];
} RSEncoder;
JNIEXPORT void JNICALL
Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder_initImpl(
JNIEnv *env, jobject thiz, jint numDataUnits, jint numParityUnits) {
RSEncoder* rsEncoder = (RSEncoder*)malloc(sizeof(RSEncoder));
memset(rsEncoder, 0, sizeof(*rsEncoder));
initEncoder(&rsEncoder->encoder, (int)numDataUnits, (int)numParityUnits);
setCoder(env, thiz, &rsEncoder->encoder.coder);
}
JNIEXPORT void JNICALL
Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder_encodeImpl(
JNIEnv *env, jobject thiz, jobjectArray inputs, jintArray inputOffsets,
jint dataLen, jobjectArray outputs, jintArray outputOffsets) {
RSEncoder* rsEncoder = (RSEncoder*)getCoder(env, thiz);
int numDataUnits = rsEncoder->encoder.coder.numDataUnits;
int numParityUnits = rsEncoder->encoder.coder.numParityUnits;
int chunkSize = (int)dataLen;
getInputs(env, inputs, inputOffsets, rsEncoder->inputs, numDataUnits);
getOutputs(env, outputs, outputOffsets, rsEncoder->outputs, numParityUnits);
encode(&rsEncoder->encoder, rsEncoder->inputs, rsEncoder->outputs, chunkSize);
}
JNIEXPORT void JNICALL
Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder_destroyImpl(
JNIEnv *env, jobject thiz) {
RSEncoder* rsEncoder = (RSEncoder*)getCoder(env, thiz);
free(rsEncoder);
}

0
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/coder/org_apache_hadoop_io_erasurecode_ErasureCodeNative.h → hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/org_apache_hadoop_io_erasurecode_ErasureCodeNative.h
View File

37
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder.h Normal file
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@ -0,0 +1,37 @@
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder */
#ifndef _Included_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder
#define _Included_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder
* Method: initImpl
* Signature: (II[I)V
*/
JNIEXPORT void JNICALL Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder_initImpl
(JNIEnv *, jobject, jint, jint);
/*
* Class: org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder
* Method: decodeImpl
* Signature: ([Ljava/nio/ByteBuffer;[II[I[Ljava/nio/ByteBuffer;[I)V
*/
JNIEXPORT void JNICALL Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder_decodeImpl
(JNIEnv *, jobject, jobjectArray, jintArray, jint, jintArray, jobjectArray, jintArray);
/*
* Class: org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder
* Method: destroyImpl
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawDecoder_destroyImpl
(JNIEnv *, jobject);
#ifdef __cplusplus
}
#endif
#endif

37
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder.h Normal file
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@ -0,0 +1,37 @@
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder */
#ifndef _Included_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder
#define _Included_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder
* Method: initImpl
* Signature: (II[I)V
*/
JNIEXPORT void JNICALL Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder_initImpl
(JNIEnv *, jobject, jint, jint);
/*
* Class: org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder
* Method: encodeImpl
* Signature: ([Ljava/nio/ByteBuffer;[II[Ljava/nio/ByteBuffer;[I)V
*/
JNIEXPORT void JNICALL Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder_encodeImpl
(JNIEnv *, jobject, jobjectArray, jintArray, jint, jobjectArray, jintArray);
/*
* Class: org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder
* Method: destroyImpl
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeRSRawEncoder_destroyImpl
(JNIEnv *, jobject);
#ifdef __cplusplus
}
#endif
#endif

309
hadoop-common-project/hadoop-common/src/main/native/src/test/org/apache/hadoop/io/erasurecode/erasure_code_test.c
View File

@ -17,185 +17,36 @@
*/
/**
* 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.
* This is a sample program illustrating how to use the Intel ISA-L library.
* Note it's adapted from erasure_code_test.c test program, but trying to use
* variable names and styles we're more familiar with already similar to Java
* coders.
*/
#include "org_apache_hadoop.h"
#include "isal_load.h"
#include "erasure_code.h"
#include "gf_util.h"
#include "erasure_coder.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 main(int argc, char *argv[]) {
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];
int chunkSize = 1024;
int numDataUnits = 6;
int numParityUnits = 3;
unsigned char** dataUnits;
unsigned char** parityUnits;
IsalEncoder* pEncoder;
int erasedIndexes[2];
unsigned char* allUnits[MMAX];
IsalDecoder* pDecoder;
unsigned char* decodingOutput[2];
unsigned char** backupUnits;
if (0 == build_support_erasurecode()) {
printf("The native library isn't available, skipping this test\n");
@ -209,102 +60,66 @@ int main(int argc, char *argv[])
}
printf("Performing erasure code test\n");
srand(TEST_SEED);
// Allocate the arrays
for (i = 0; i < TEST_SOURCES; i++) {
buffs[i] = malloc(TEST_LEN);
dataUnits = calloc(numDataUnits, sizeof(unsigned char*));
parityUnits = calloc(numParityUnits, sizeof(unsigned char*));
backupUnits = calloc(numParityUnits, sizeof(unsigned char*));
// Allocate and generate data units
srand(135);
for (i = 0; i < numDataUnits; i++) {
dataUnits[i] = calloc(chunkSize, sizeof(unsigned char));
for (j = 0; j < chunkSize; j++) {
dataUnits[i][j] = rand();
}
}
for (i = 0; i < TEST_SOURCES; i++) {
temp_buffs[i] = malloc(TEST_LEN);
// Allocate and initialize parity units
for (i = 0; i < numParityUnits; i++) {
parityUnits[i] = calloc(chunkSize, sizeof(unsigned char));
for (j = 0; j < chunkSize; j++) {
parityUnits[i][j] = 0;
}
}
// Test erasure code by encode and recovery
pEncoder = (IsalEncoder*)malloc(sizeof(IsalEncoder));
memset(pEncoder, 0, sizeof(*pEncoder));
initEncoder(pEncoder, numDataUnits, numParityUnits);
encode(pEncoder, dataUnits, parityUnits, chunkSize);
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;
}
pDecoder = (IsalDecoder*)malloc(sizeof(IsalDecoder));
memset(pDecoder, 0, sizeof(*pDecoder));
initDecoder(pDecoder, numDataUnits, numParityUnits);
m = 9;
k = 5;
if (m > MMAX || k > KMAX)
return -1;
memcpy(allUnits, dataUnits, numDataUnits * (sizeof (unsigned char*)));
memcpy(allUnits + numDataUnits, parityUnits,
numParityUnits * (sizeof (unsigned char*)));
// Make random data
for (i = 0; i < k; i++)
for (j = 0; j < TEST_LEN; j++)
buffs[i][j] = rand();
erasedIndexes[0] = 1;
erasedIndexes[1] = 7;
// The matrix generated by gf_gen_cauchy1_matrix
// is always invertable.
h_gf_gen_cauchy_matrix(encode_matrix, m, k);
backupUnits[0] = allUnits[1];
backupUnits[1] = allUnits[7];
// Generate g_tbls from encode matrix encode_matrix
h_ec_init_tables(k, m - k, &encode_matrix[k * k], g_tbls);
allUnits[0] = NULL; // Not to read
allUnits[1] = NULL;
allUnits[7] = NULL;
// 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]);
decodingOutput[0] = malloc(chunkSize);
decodingOutput[1] = malloc(chunkSize);
// 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);
decode(pDecoder, allUnits, erasedIndexes, 2, decodingOutput, chunkSize);
for (i = 0; i < pDecoder->numErased; i++) {
if (0 != memcmp(decodingOutput[i], backupUnits[i], chunkSize)) {
fprintf(stderr, "Decoding failed\n\n");
dumpDecoder(pDecoder);
return -1;
}
}
printf("done EC tests: Pass\n");
dumpDecoder(pDecoder);
fprintf(stdout, "Successfully done, passed!\n\n");
return 0;
}