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TD-34

This commit is contained in:
hzcheng 2020-03-24 17:48:29 +08:00
parent 305523f47a
commit e0863b4c0b
3 changed files with 201 additions and 160 deletions
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59
src/vnode/tsdb/inc/tsdbFile.h
View File

@ -34,15 +34,22 @@ typedef enum {
TSDB_FILE_TYPE_MAX
} TSDB_FILE_TYPE;
#define IS_VALID_TSDB_FILE_TYPE(type) ((type) >= TSDB_FILE_TYPE_HEAD && (type) < TSDB_FILE_TYPE_MAX)
extern const char *tsdbFileSuffix[];
typedef struct {
int8_t type;
int fd;
char fname[128];
int64_t size; // total size of the file
int64_t tombSize; // unused file size
int32_t totalBlocks;
int32_t totalSubBlocks;
} SFile;
#define TSDB_IS_FILE_OPENED(f) ((f)->fd != -1)
typedef struct {
int32_t fileId;
SFile files[TSDB_FILE_TYPE_MAX];
@ -50,14 +57,26 @@ typedef struct {
// TSDB file handle
typedef struct {
int32_t daysPerFile;
int32_t keep;
int32_t minRowPerFBlock;
int32_t maxRowsPerFBlock;
int32_t maxTables;
int maxFGroups;
int numOfFGroups;
SFileGroup fGroup[];
} STsdbFileH;
#define TSDB_MIN_FILE_ID(fh) (fh)->fGroup[0].fileId
#define TSDB_MAX_FILE_ID(fh) (fh)->fGroup[(fh)->numOfFGroups - 1].fileId
STsdbFileH *tsdbInitFileH(char *dataDir, int maxFiles);
void tsdbCloseFileH(STsdbFileH *pFileH);
int tsdbCreateFGroup(STsdbFileH *pFileH, char *dataDir, int fid, int maxTables);
int tsdbRemoveFileGroup(STsdbFileH *pFile, int fid);
typedef struct {
int32_t len;
int32_t padding; // For padding purpose
int64_t offset;
} SCompIdx;
/**
* if numOfSubBlocks == -1, then the SCompBlock is a sub-block
* if numOfSubBlocks == 1, then the SCompBlock refers to the data block, and offset/len refer to
@ -78,14 +97,32 @@ typedef struct {
TSKEY keyLast;
} SCompBlock;
#define IS_VALID_TSDB_FILE_TYPE(type) ((type) >= TSDB_FILE_TYPE_HEAD && (type) < TSDB_FILE_TYPE_MAX)
typedef struct {
int32_t delimiter; // For recovery usage
int32_t checksum; // TODO: decide if checksum logic in this file or make it one API
int64_t uid;
int32_t padding; // For padding purpose
int32_t numOfBlocks; // TODO: make the struct padding
SCompBlock blocks[];
} SCompInfo;
STsdbFileH *tsdbInitFile(char *dataDir, int32_t daysPerFile, int32_t keep, int32_t minRowsPerFBlock,
int32_t maxRowsPerFBlock, int32_t maxTables);
// TODO: take pre-calculation into account
typedef struct {
int16_t colId; // Column ID
int16_t len; // Column length
int32_t type : 8;
int32_t offset : 24;
} SCompCol;
void tsdbCloseFile(STsdbFileH *pFileH);
int tsdbCreateFileGroup(char *dataDir, int fileId, SFileGroup *pFGroup, int maxTables);
void tsdbGetKeyRangeOfFileId(int32_t daysPerFile, int8_t precision, int32_t fileId, TSKEY *minKey, TSKEY *maxKey);
// TODO: Take recover into account
typedef struct {
int32_t delimiter; // For recovery usage
int32_t numOfCols; // For recovery usage
int64_t uid; // For recovery usage
SCompCol cols[];
} SCompData;
void tsdbGetKeyRangeOfFileId(int32_t daysPerFile, int8_t precision, int32_t fileId, TSKEY *minKey, TSKEY *maxKey);
#ifdef __cplusplus
}
#endif

236
src/vnode/tsdb/src/tsdbFile.c
View File

@ -27,72 +27,126 @@
#define TSDB_FILE_HEAD_SIZE 512
#define TSDB_FILE_DELIMITER 0xF00AFA0F
typedef struct {
int32_t len;
int32_t padding; // For padding purpose
int64_t offset;
} SCompIdx;
typedef struct {
int32_t delimiter; // For recovery usage
int32_t checksum; // TODO: decide if checksum logic in this file or make it one API
int64_t uid;
int32_t padding; // For padding purpose
int32_t numOfBlocks; // TODO: make the struct padding
SCompBlock blocks[];
} SCompInfo;
// TODO: take pre-calculation into account
typedef struct {
int16_t colId; // Column ID
int16_t len; // Column length
int32_t type : 8;
int32_t offset : 24;
} SCompCol;
// TODO: Take recover into account
typedef struct {
int32_t delimiter; // For recovery usage
int32_t numOfCols; // For recovery usage
int64_t uid; // For recovery usage
SCompCol cols[];
} SCompData;
const char *tsdbFileSuffix[] = {
".head", // TSDB_FILE_TYPE_HEAD
".data", // TSDB_FILE_TYPE_DATA
".last" // TSDB_FILE_TYPE_LAST
};
static int tsdbWriteFileHead(int fd, SFile *pFile) {
static int compFGroupKey(const void *key, const void *fgroup);
static int compFGroup(const void *arg1, const void *arg2);
static int tsdbGetFileName(char *dataDir, int fileId, int8_t type, char *fname);
static int tsdbCreateFile(char *dataDir, int fileId, int8_t type, int maxTables, SFile *pFile);
static int tsdbWriteFileHead(SFile *pFile);
static int tsdbWriteHeadFileIdx(SFile *pFile, int maxTables);
STsdbFileH *tsdbInitFileH(char *dataDir, int maxFiles) {
STsdbFileH *pFileH = (STsdbFileH *)calloc(1, sizeof(STsdbFileH) + sizeof(SFileGroup) * maxFiles);
if (pFileH == NULL) { // TODO: deal with ERROR here
return NULL;
}
pFileH->maxFGroups = maxFiles;
DIR *dir = opendir(dataDir);
if (dir == NULL) {
free(pFileH);
return NULL;
}
struct dirent *dp;
while ((dp = readdir(dir)) != NULL) {
if (strncmp(dp->d_name, ".", 1) == 0 || strncmp(dp->d_name, "..", 1) == 0) continue;
// TODO
}
return pFileH;
}
void tsdbCloseFileH(STsdbFileH *pFileH) { free(pFileH); }
int tsdbCreateFGroup(STsdbFileH *pFileH, char *dataDir, int fid, int maxTables) {
if (pFileH->numOfFGroups >= pFileH->maxFGroups) return -1;
SFileGroup fGroup;
SFileGroup *pFGroup = &fGroup;
if (fid < TSDB_MIN_FILE_ID(pFileH) || fid > TSDB_MAX_FILE_ID(pFileH) ||
bsearch((void *)&fid, (void *)(pFileH->fGroup), pFileH->numOfFGroups, sizeof(SFileGroup), compFGroupKey) ==
NULL) {
pFGroup->fileId = fid;
for (int type = TSDB_FILE_TYPE_HEAD; type < TSDB_FILE_TYPE_MAX; type++) {
if (tsdbCreateFile(dataDir, fid, type, maxTables, &(pFGroup->files[type])) < 0) {
// TODO: deal with the ERROR here, remove those creaed file
return -1;
}
}
pFileH->fGroup[pFileH->numOfFGroups++] = fGroup;
qsort((void *)(pFileH->fGroup), pFileH->numOfFGroups, sizeof(SFileGroup), compFGroup);
}
return 0;
}
int tsdbRemoveFileGroup(STsdbFileH *pFileH, int fid) {
SFileGroup *pGroup =
bsearch((void *)&fid, (void *)(pFileH->fGroup), pFileH->numOfFGroups, sizeof(SFileGroup), compFGroupKey);
if (pGroup == NULL) return -1;
// Remove from disk
for (int type = TSDB_FILE_TYPE_HEAD; type < TSDB_FILE_TYPE_MAX; type++) {
remove(pGroup->files[type].fname);
}
// Adjust the memory
int filesBehind = pFileH->numOfFGroups - (((char *)pGroup - (char *)(pFileH->fGroup)) / sizeof(SFileGroup) + 1);
if (filesBehind > 0) {
memmove((void *)pGroup, (void *)((char *)pGroup + sizeof(SFileGroup)), sizeof(SFileGroup) * filesBehind);
}
pFileH->numOfFGroups--;
return 0;
}
static int compFGroupKey(const void *key, const void *fgroup) {
int fid = *(int *)key;
SFileGroup *pFGroup = (SFileGroup *)fgroup;
return (fid - pFGroup->fileId);
}
static int compFGroup(const void *arg1, const void *arg2) {
return ((SFileGroup *)arg1)->fileId - ((SFileGroup *)arg2)->fileId;
}
static int tsdbWriteFileHead(SFile *pFile) {
char head[TSDB_FILE_HEAD_SIZE] = "\0";
pFile->size += TSDB_FILE_HEAD_SIZE;
// TODO: write version and File statistic to the head
lseek(fd, 0, SEEK_SET);
if (write(fd, head, TSDB_FILE_HEAD_SIZE) < 0) return -1;
lseek(pFile->fd, 0, SEEK_SET);
if (write(pFile->fd, head, TSDB_FILE_HEAD_SIZE) < 0) return -1;
return 0;
}
static int tsdbWriteHeadFileIdx(int fd, int maxTables, SFile *pFile) {
static int tsdbWriteHeadFileIdx(SFile *pFile, int maxTables) {
int size = sizeof(SCompIdx) * maxTables;
void *buf = calloc(1, size);
if (buf == NULL) return -1;
if (lseek(fd, TSDB_FILE_HEAD_SIZE, SEEK_SET) < 0) {
if (lseek(pFile->fd, TSDB_FILE_HEAD_SIZE, SEEK_SET) < 0) {
free(buf);
return -1;
}
if (write(fd, buf, size) < 0) {
if (write(pFile->fd, buf, size) < 0) {
free(buf);
return -1;
}
pFile->size += size;
free(buf);
return 0;
}
@ -104,12 +158,27 @@ static int tsdbGetFileName(char *dataDir, int fileId, int8_t type, char *fname)
return 0;
}
/**
* Create a file and set the SFile object
*/
static int tsdbOpenFileForWrite(SFile *pFile, int oflag) { // TODO: change the function
if (TSDB_IS_FILE_OPENED(pFile)) return -1;
pFile->fd = open(pFile->fname, oflag, 0755);
if (pFile->fd < 0) return -1;
return 0;
}
static int tsdbCloseFile(SFile *pFile) {
if (!TSDB_IS_FILE_OPENED(pFile)) return -1;
int ret = close(pFile->fd);
pFile->fd = -1;
return ret;
}
static int tsdbCreateFile(char *dataDir, int fileId, int8_t type, int maxTables, SFile *pFile) {
memset((void *)pFile, 0, sizeof(SFile));
pFile->type = type;
pFile->fd = -1;
tsdbGetFileName(dataDir, fileId, type, pFile->fname);
if (access(pFile->fname, F_OK) == 0) {
@ -117,93 +186,28 @@ static int tsdbCreateFile(char *dataDir, int fileId, int8_t type, int maxTables,
return -1;
}
int fd = open(pFile->fname, O_WRONLY | O_CREAT, 0755);
if (fd < 0) return -1;
if (type == TSDB_FILE_TYPE_HEAD) {
if (tsdbWriteHeadFileIdx(fd, maxTables, pFile) < 0) {
close(fd);
return -1;
}
}
if (tsdbWriteFileHead(fd, pFile) < 0) {
close(fd);
if (tsdbOpenFileForWrite(pFile, O_WRONLY | O_CREAT) < 0) {
// TODO: deal with the ERROR here
return -1;
}
close(fd);
return 0;
}
static int tsdbRemoveFile(SFile *pFile) {
if (pFile == NULL) return -1;
return remove(pFile->fname);
}
// Create a file group with fileId and return a SFileGroup object
int tsdbCreateFileGroup(char *dataDir, int fileId, SFileGroup *pFGroup, int maxTables) {
if (dataDir == NULL || pFGroup == NULL) return -1;
memset((void *)pFGroup, 0, sizeof(SFileGroup));
for (int type = TSDB_FILE_TYPE_HEAD; type < TSDB_FILE_TYPE_MAX; type++) {
if (tsdbCreateFile(dataDir, fileId, type, maxTables, &(pFGroup->files[type])) < 0) {
// TODO: deal with the error here, remove the created files
if (type == TSDB_FILE_TYPE_HEAD) {
if (tsdbWriteHeadFileIdx(pFile, maxTables) < 0) {
tsdbCloseFile(pFile);
return -1;
}
}
pFGroup->fileId = fileId;
if (tsdbWriteFileHead(pFile) < 0) {
tsdbCloseFile(pFile);
return -1;
}
tsdbCloseFile(pFile);
return 0;
}
/**
* Initialize the TSDB file handle
*/
STsdbFileH *tsdbInitFile(char *dataDir, int32_t daysPerFile, int32_t keep, int32_t minRowsPerFBlock,
int32_t maxRowsPerFBlock, int32_t maxTables) {
STsdbFileH *pTsdbFileH =
(STsdbFileH *)calloc(1, sizeof(STsdbFileH) + sizeof(SFileGroup) * tsdbGetMaxNumOfFiles(keep, daysPerFile));
if (pTsdbFileH == NULL) return NULL;
pTsdbFileH->daysPerFile = daysPerFile;
pTsdbFileH->keep = keep;
pTsdbFileH->minRowPerFBlock = minRowsPerFBlock;
pTsdbFileH->maxRowsPerFBlock = maxRowsPerFBlock;
pTsdbFileH->maxTables = maxTables;
// Open the directory to read information of each file
DIR *dir = opendir(dataDir);
if (dir == NULL) {
free(pTsdbFileH);
return NULL;
}
char fname[256];
struct dirent *dp;
while ((dp = readdir(dir)) != NULL) {
if (strncmp(dp->d_name, ".", 1) == 0 || strncmp(dp->d_name, "..", 2) == 0) continue;
if (true /* check if the file is the .head file */) {
int fileId = 0;
int vgId = 0;
sscanf(dp->d_name, "v%df%d.head", &vgId, &fileId);
// TODO
// Open head file
// Open data file
// Open last file
}
}
return pTsdbFileH;
}
void tsdbGetKeyRangeOfFileId(int32_t daysPerFile, int8_t precision, int32_t fileId, TSKEY *minKey,
TSKEY *maxKey) {
*minKey = fileId * daysPerFile * tsMsPerDay[precision];

66
src/vnode/tsdb/src/tsdbMain.c
View File

@ -182,7 +182,7 @@ tsdb_repo_t *tsdbCreateRepo(char *rootDir, STsdbCfg *pCfg, void *limiter /* TODO
char dataDir[128] = "\0";
tsdbGetDataDirName(pRepo, dataDir);
pRepo->tsdbFileH =
tsdbInitFile(dataDir, pCfg->daysPerFile, pCfg->keep, pCfg->minRowsPerFileBlock, pCfg->maxRowsPerFileBlock, pCfg->maxTables);
tsdbInitFileH(dataDir, pCfg->maxTables);
if (pRepo->tsdbFileH == NULL) {
free(pRepo->rootDir);
tsdbFreeCache(pRepo->tsdbCache);
@ -787,7 +787,7 @@ static void tsdbDestroyTableIters(SSkipListIterator **iters, int maxTables) {
for (int tid = 0; tid < maxTables; tid++) {
if (iters[tid] == NULL) continue;
tSkipListDestroy(iters[tid]);
tSkipListDestroyIter(iters[tid]);
}
free(iters);
@ -836,42 +836,42 @@ static void *tsdbCommitToFile(void *arg) {
SDataCol **cols = (SDataCol **)malloc(sizeof(SDataCol *) * maxCols);
void *buf = malloc((maxBytes + sizeof(SDataCol)) * pCfg->maxRowsPerFileBlock);
int sfid = tsdbGetKeyFileId(pCache->imem->keyFirst, pCfg->daysPerFile, pCfg->precision);
int efid = tsdbGetKeyFileId(pCache->imem->keyLast, pCfg->daysPerFile, pCfg->precision);
// int sfid = tsdbGetKeyFileId(pCache->imem->keyFirst, pCfg->daysPerFile, pCfg->precision);
// int efid = tsdbGetKeyFileId(pCache->imem->keyLast, pCfg->daysPerFile, pCfg->precision);
for (int fid = sfid; fid <= efid; fid++) {
TSKEY minKey = 0, maxKey = 0;
tsdbGetKeyRangeOfFileId(pCfg->daysPerFile, pCfg->precision, fid, &minKey, &maxKey);
// for (int fid = sfid; fid <= efid; fid++) {
// TSKEY minKey = 0, maxKey = 0;
// tsdbGetKeyRangeOfFileId(pCfg->daysPerFile, pCfg->precision, fid, &minKey, &maxKey);
// tsdbOpenFileForWrite(pRepo, fid);
// // tsdbOpenFileForWrite(pRepo, fid);
for (int tid = 0; tid < pCfg->maxTables; tid++) {
STable *pTable = pMeta->tables[tid];
if (pTable == NULL || pTable->imem == NULL) continue;
if (iters[tid] == NULL) { // create table iterator
iters[tid] = tSkipListCreateIter(pTable->imem->pData);
// TODO: deal with the error
if (iters[tid] == NULL) break;
if (!tSkipListIterNext(iters[tid])) {
// assert(0);
}
}
// for (int tid = 0; tid < pCfg->maxTables; tid++) {
// STable *pTable = pMeta->tables[tid];
// if (pTable == NULL || pTable->imem == NULL) continue;
// if (iters[tid] == NULL) { // create table iterator
// iters[tid] = tSkipListCreateIter(pTable->imem->pData);
// // TODO: deal with the error
// if (iters[tid] == NULL) break;
// if (!tSkipListIterNext(iters[tid])) {
// // assert(0);
// }
// }
// Init row data part
cols[0] = (SDataCol *)buf;
for (int col = 1; col < schemaNCols(pTable->schema); col++) {
cols[col] = (SDataCol *)((char *)(cols[col - 1]) + sizeof(SDataCol) + colBytes(schemaColAt(pTable->schema, col-1)) * pCfg->maxRowsPerFileBlock);
}
// // Init row data part
// cols[0] = (SDataCol *)buf;
// for (int col = 1; col < schemaNCols(pTable->schema); col++) {
// cols[col] = (SDataCol *)((char *)(cols[col - 1]) + sizeof(SDataCol) + colBytes(schemaColAt(pTable->schema, col-1)) * pCfg->maxRowsPerFileBlock);
// }
// Loop the iterator
int rowsRead = 0;
while ((rowsRead = tsdbReadRowsFromCache(iters[tid], maxKey, pCfg->maxRowsPerFileBlock, cols, pTable->schema)) >
0) {
// printf("rowsRead:%d-----------\n", rowsRead);
int k = 0;
}
}
}
// // Loop the iterator
// int rowsRead = 0;
// while ((rowsRead = tsdbReadRowsFromCache(iters[tid], maxKey, pCfg->maxRowsPerFileBlock, cols, pTable->schema)) >
// 0) {
// // printf("rowsRead:%d-----------\n", rowsRead);
// int k = 0;
// }
// }
// }
tsdbDestroyTableIters(iters, pCfg->maxTables);