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Overview
Comment: | Add tests for dealing with inconsistent tree-headers in shared-memory. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
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SHA1: |
4ea78ff1f3168f0d5d45d8e21ee547cc |
User & Date: | dan 2012-09-13 18:13:57.581 |
Context
2012-09-14
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19:59 | Improve speed test commands in lsmtest. Add script lsmperf.tcl to use these to generate gnuplot files. check-in: d9e0ad7566 user: dan tags: trunk | |
2012-09-13
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18:13 | Add tests for dealing with inconsistent tree-headers in shared-memory. check-in: 4ea78ff1f3 user: dan tags: trunk | |
15:24 | Add lsmtest tests that focus on recovering from the failure of a writer process. And fixes for the same. check-in: bb42813797 user: dan tags: trunk | |
Changes
Changes to lsm-test/lsmtest.h.
1 2 3 4 5 6 7 8 | #ifndef __WRAPPER_INT_H_ #define __WRAPPER_INT_H_ #include "lsmtest_tdb.h" #include "sqlite3.h" #include "lsm.h" | < < > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | #ifndef __WRAPPER_INT_H_ #define __WRAPPER_INT_H_ #include "lsmtest_tdb.h" #include "sqlite3.h" #include "lsm.h" #include <assert.h> #include <stdlib.h> #include <string.h> #include <stdio.h> #ifdef __cplusplus extern "C" { #endif #ifndef _LSM_INT_H typedef unsigned int u32; typedef unsigned char u8; typedef long long int i64; typedef unsigned long long int u64; #endif #define ArraySize(x) ((int)(sizeof(x) / sizeof((x)[0]))) #define MIN(x,y) ((x)<(y) ? (x) : (y)) #define MAX(x,y) ((x)>(y) ? (x) : (y)) |
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Changes to lsm-test/lsmtest6.c.
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243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 | #include <unistd.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> void testDeleteLsmdb(const char *zFile){ char *zLog = testMallocPrintf("%s-log", zFile); unlink(zFile); unlink(zLog); testFree(zLog); } static void copy_file(const char *zFrom, const char *zTo){ if( access(zFrom, F_OK) ){ unlink(zTo); }else{ | > > > | 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 | #include <unistd.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> void testDeleteLsmdb(const char *zFile){ char *zLog = testMallocPrintf("%s-log", zFile); char *zShm = testMallocPrintf("%s-shm", zFile); unlink(zFile); unlink(zLog); unlink(zShm); testFree(zLog); testFree(zShm); } static void copy_file(const char *zFrom, const char *zTo){ if( access(zFrom, F_OK) ){ unlink(zTo); }else{ |
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Changes to lsm-test/lsmtest8.c.
1 2 3 4 5 6 7 8 9 10 11 12 13 | /* ** This file contains test cases to verify that "live-recovery" following ** a mid-transaction failure of a writer process. */ #include "lsmtest.h" typedef struct SetupStep SetupStep; struct SetupStep { int workflags; /* Flags to pass to lsm_work() */ int iInsStart; /* First key-value from ds to insert */ int nIns; /* Number of rows to insert */ | > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | /* ** This file contains test cases to verify that "live-recovery" following ** a mid-transaction failure of a writer process. */ /* ** This test file includes lsmInt.h to get access to the definition of the ** ShmHeader structure. This is required to cause strategic damage to the ** shared memory header as part of recovery testing. */ #include "lsmInt.h" #include "lsmtest.h" typedef struct SetupStep SetupStep; struct SetupStep { int workflags; /* Flags to pass to lsm_work() */ int iInsStart; /* First key-value from ds to insert */ int nIns; /* Number of rows to insert */ |
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56 57 58 59 60 61 62 63 64 65 66 67 68 69 | doSetupStepArray(pDb, pData, aStep, ArraySize(aStep)); if( ppData ){ *ppData = pData; }else{ testDatasourceFree(pData); } } /* ** This function makes a copy of the three files associated with LSM ** database zDb (i.e. if zDb is "test.db", it makes copies of "test.db", ** "test.db-log" and "test.db-shm"). ** ** It then opens a new database connection to the copy with the xLock() call | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | doSetupStepArray(pDb, pData, aStep, ArraySize(aStep)); if( ppData ){ *ppData = pData; }else{ testDatasourceFree(pData); } } #include <stdio.h> void testReadFile(const char *zFile, int iOff, void *pOut, int nByte, int *pRc){ if( *pRc==0 ){ FILE *fd; fd = fopen(zFile, "r"); if( fd==0 ){ *pRc = 1; }else{ if( 0!=fseek(fd, iOff, SEEK_SET) ){ *pRc = 1; }else{ if( nByte!=fread(pOut, 1, nByte, fd) ){ *pRc = 1; } } fclose(fd); } } } void testWriteFile( const char *zFile, int iOff, void *pOut, int nByte, int *pRc ){ if( *pRc==0 ){ FILE *fd; fd = fopen(zFile, "r+"); if( fd==0 ){ *pRc = 1; }else{ if( 0!=fseek(fd, iOff, SEEK_SET) ){ *pRc = 1; }else{ if( nByte!=fwrite(pOut, 1, nByte, fd) ){ *pRc = 1; } } fclose(fd); } } } static ShmHeader *getShmHeader(const char *zDb){ int rc = 0; char *zShm = testMallocPrintf("%s-shm", zDb); ShmHeader *pHdr; pHdr = testMalloc(sizeof(ShmHeader)); testReadFile(zShm, 0, (void *)pHdr, sizeof(ShmHeader), &rc); assert( rc==0 ); return pHdr; } /* ** This function makes a copy of the three files associated with LSM ** database zDb (i.e. if zDb is "test.db", it makes copies of "test.db", ** "test.db-log" and "test.db-shm"). ** ** It then opens a new database connection to the copy with the xLock() call |
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86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | int rc; pData = testDatasourceNew(&defn); testCopyLsmdb(zDb, zCopy); rc = tdb_lsm_open("test_no_recovery=1", zCopy, 0, &pDb); if( rc==0 ){ lsm_db *db; testCksumDatabase(pDb, zCksum2); testCompareStr(zCksum, zCksum2, &rc); testWriteDatasourceRange(pDb, pData, 1, 10, &rc); testDeleteDatasourceRange(pDb, pData, 1, 10, &rc); if( rc==0 ){ db = tdb_lsm(pDb); rc = lsm_work(db, LSM_WORK_FLUSH|LSM_WORK_CHECKPOINT, 0, 0); } testCksumDatabase(pDb, zCksum2); testCompareStr(zCksum, zCksum2, &rc); } testDatasourceFree(pData); testClose(&pDb); *pRc = rc; } static void doWriterCrash1(int *pRc){ const int nWrite = 2000; const int iWriteStart = 20000; int rc = 0; TestDb *pDb = 0; Datasource *pData = 0; | > > > > > > > > > > | | | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | | | > > | 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 | int rc; pData = testDatasourceNew(&defn); testCopyLsmdb(zDb, zCopy); rc = tdb_lsm_open("test_no_recovery=1", zCopy, 0, &pDb); if( rc==0 ){ ShmHeader *pHdr; lsm_db *db; testCksumDatabase(pDb, zCksum2); testCompareStr(zCksum, zCksum2, &rc); testWriteDatasourceRange(pDb, pData, 1, 10, &rc); testDeleteDatasourceRange(pDb, pData, 1, 10, &rc); /* Test that the two tree-headers are now consistent. */ pHdr = getShmHeader(zCopy); if( rc==0 && memcmp(&pHdr->hdr1, &pHdr->hdr2, sizeof(pHdr->hdr1)) ){ rc = 1; } testFree(pHdr); if( rc==0 ){ db = tdb_lsm(pDb); rc = lsm_work(db, LSM_WORK_FLUSH|LSM_WORK_CHECKPOINT, 0, 0); } testCksumDatabase(pDb, zCksum2); testCompareStr(zCksum, zCksum2, &rc); } testDatasourceFree(pData); testClose(&pDb); testDeleteLsmdb(zCopy); *pRc = rc; } static void doWriterCrash1(int *pRc){ const int nWrite = 2000; const int nStep = 10; const int iWriteStart = 20000; int rc = 0; TestDb *pDb = 0; Datasource *pData = 0; rc = tdb_lsm_open("autowork=0", "testdb.lsm", 1, &pDb); if( rc==0 ){ int iDot = 0; char zCksum[TEST_CKSUM_BYTES]; int i; setupDatabase1(pDb, &pData); testCksumDatabase(pDb, zCksum); testBegin(pDb, 2, &rc); for(i=0; rc==0 && i<nWrite; i+=nStep){ testCaseProgress(i, nWrite, testCaseNDot(), &iDot); testWriteDatasourceRange(pDb, pData, iWriteStart+i, nStep, &rc); doLiveRecovery("testdb.lsm", zCksum, &rc); } } testCommit(pDb, 0, &rc); testClose(&pDb); testDatasourceFree(pData); *pRc = rc; } /* ** This test case verifies that inconsistent tree-headers in shared-memory ** are resolved correctly. */ static void doWriterCrash2(int *pRc){ int rc = 0; TestDb *pDb = 0; Datasource *pData = 0; rc = tdb_lsm_open("autowork=0", "testdb.lsm", 1, &pDb); if( rc==0 ){ ShmHeader *pHdr1; ShmHeader *pHdr2; char zCksum1[TEST_CKSUM_BYTES]; char zCksum2[TEST_CKSUM_BYTES]; pHdr1 = testMalloc(sizeof(ShmHeader)); pHdr2 = testMalloc(sizeof(ShmHeader)); setupDatabase1(pDb, &pData); /* Grab a copy of the shared-memory header. And the db checksum */ testReadFile("testdb.lsm-shm", 0, (void *)pHdr1, sizeof(ShmHeader), &rc); testCksumDatabase(pDb, zCksum1); /* Modify the database */ testBegin(pDb, 2, &rc); testWriteDatasourceRange(pDb, pData, 30000, 200, &rc); testCommit(pDb, 0, &rc); /* Grab a second copy of the shared-memory header. And the db checksum */ testReadFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc); testCksumDatabase(pDb, zCksum2); doLiveRecovery("testdb.lsm", zCksum2, &rc); /* If both tree-headers are valid, tree-header-1 is used. */ memcpy(&pHdr2->hdr1, &pHdr1->hdr1, sizeof(pHdr1->hdr1)); pHdr2->bWriter = 1; testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc); doLiveRecovery("testdb.lsm", zCksum1, &rc); /* If both tree-headers are valid, tree-header-1 is used. */ memcpy(&pHdr2->hdr1, &pHdr2->hdr2, sizeof(pHdr1->hdr1)); memcpy(&pHdr2->hdr2, &pHdr1->hdr1, sizeof(pHdr1->hdr1)); pHdr2->bWriter = 1; testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc); doLiveRecovery("testdb.lsm", zCksum2, &rc); /* If tree-header 1 is invalid, tree-header-2 is used */ memcpy(&pHdr2->hdr2, &pHdr2->hdr1, sizeof(pHdr1->hdr1)); pHdr2->hdr1.aCksum[0] = 5; pHdr2->hdr1.aCksum[0] = 6; pHdr2->bWriter = 1; testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc); doLiveRecovery("testdb.lsm", zCksum2, &rc); /* If tree-header 2 is invalid, tree-header-1 is used */ memcpy(&pHdr2->hdr1, &pHdr2->hdr2, sizeof(pHdr1->hdr1)); pHdr2->hdr2.aCksum[0] = 5; pHdr2->hdr2.aCksum[0] = 6; pHdr2->bWriter = 1; testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc); doLiveRecovery("testdb.lsm", zCksum2, &rc); testFree(pHdr1); testFree(pHdr2); testClose(&pDb); } *pRc = rc; } void do_writer_crash_test(const char *zPattern, int *pRc){ struct Test { const char *zName; void (*xFunc)(int *); } aTest[] = { { "writercrash2.lsm", doWriterCrash2 }, { "writercrash1.lsm", doWriterCrash1 }, }; int i; for(i=0; i<ArraySize(aTest); i++){ struct Test *p = &aTest[i]; if( testCaseBegin(pRc, zPattern, p->zName) ){ p->xFunc(pRc); testCaseFinish(*pRc); } } } |