homework-jianmu/tools/shell/src/backup/shellImport.c

283 lines
7.5 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE
#define _XOPEN_SOURCE
#define _DEFAULT_SOURCE
#include "os.h"
#include "shell.h"
#include "shellCommand.h"
#include "tglobal.h"
#include "tutil.h"
static char **shellSQLFiles = NULL;
static int32_t shellSQLFileNum = 0;
static char shellTablesSQLFile[TSDB_FILENAME_LEN] = {0};
typedef struct {
pthread_t threadID;
int threadIndex;
int totalThreads;
void *taos;
} ShellThreadObj;
static int shellGetFilesNum(const char *directoryName, const char *prefix)
{
char cmd[1024] = { 0 };
sprintf(cmd, "ls %s/*.%s | wc -l ", directoryName, prefix);
FILE *fp = popen(cmd, "r");
if (fp == NULL) {
fprintf(stderr, "ERROR: failed to execute:%s, error:%s\n", cmd, strerror(errno));
exit(0);
}
int fileNum = 0;
if (fscanf(fp, "%d", &fileNum) != 1) {
fprintf(stderr, "ERROR: failed to execute:%s, parse result error\n", cmd);
exit(0);
}
if (fileNum <= 0) {
fprintf(stderr, "ERROR: directory:%s is empry\n", directoryName);
exit(0);
}
pclose(fp);
return fileNum;
}
static void shellParseDirectory(const char *directoryName, const char *prefix, char **fileArray, int totalFiles)
{
char cmd[1024] = { 0 };
sprintf(cmd, "ls %s/*.%s | sort", directoryName, prefix);
FILE *fp = popen(cmd, "r");
if (fp == NULL) {
fprintf(stderr, "ERROR: failed to execute:%s, error:%s\n", cmd, strerror(errno));
exit(0);
}
int fileNum = 0;
while (fscanf(fp, "%128s", fileArray[fileNum++])) {
if (strcmp(fileArray[fileNum-1], shellTablesSQLFile) == 0) {
fileNum--;
}
if (fileNum >= totalFiles) {
break;
}
}
if (fileNum != totalFiles) {
fprintf(stderr, "ERROR: directory:%s changed while read\n", directoryName);
exit(0);
}
pclose(fp);
}
static void shellCheckTablesSQLFile(const char *directoryName)
{
sprintf(shellTablesSQLFile, "%s/tables.sql", directoryName);
if (taosFStatFile(shellTablesSQLFile, NULL, NULL) < 0) {
shellTablesSQLFile[0] = 0;
}
}
static void shellMallocSQLFiles()
{
shellSQLFiles = (char**)calloc(shellSQLFileNum, sizeof(char*));
for (int i = 0; i < shellSQLFileNum; i++) {
shellSQLFiles[i] = calloc(1, TSDB_FILENAME_LEN);
}
}
static void shellGetDirectoryFileList(char *inputDir)
{
if (!taosDirExist(inputDir)) {
fprintf(stderr, "ERROR: %s not exist\n", inputDir);
exit(0);
}
if (taosIsDir(inputDir)) {
shellCheckTablesSQLFile(inputDir);
shellSQLFileNum = shellGetFilesNum(inputDir, "sql");
int totalSQLFileNum = shellSQLFileNum;
if (shellTablesSQLFile[0] != 0) {
shellSQLFileNum--;
}
shellMallocSQLFiles();
shellParseDirectory(inputDir, "sql", shellSQLFiles, shellSQLFileNum);
fprintf(stdout, "\nstart to dispose %d files in %s\n", totalSQLFileNum, inputDir);
}
else {
fprintf(stderr, "ERROR: %s is not a directory\n", inputDir);
exit(0);
}
}
static void shellSourceFile(TAOS *con, char *fptr) {
wordexp_t full_path;
int read_len = 0;
char * cmd = malloc(tsMaxSQLStringLen);
size_t cmd_len = 0;
char * line = NULL;
if (wordexp(fptr, &full_path, 0) != 0) {
fprintf(stderr, "ERROR: illegal file name\n");
free(cmd);
return;
}
char *fname = full_path.we_wordv[0];
if (fname == NULL) {
fprintf(stderr, "ERROR: invalid filename\n");
free(cmd);
return;
}
/*
if (access(fname, F_OK) != 0) {
fprintf(stderr, "ERROR: file %s is not exist\n", fptr);
wordfree(&full_path);
free(cmd);
return;
}
if (access(fname, R_OK) != 0) {
fprintf(stderr, "ERROR: file %s is not readable\n", fptr);
wordfree(&full_path);
free(cmd);
return;
}
*/
// FILE *f = fopen(fname, "r");
TdFilePtr pFile = taosOpenFile(fname, TD_FILE_READ | TD_FILE_STREAM);
if (pFile == NULL) {
fprintf(stderr, "ERROR: failed to open file %s\n", fname);
wordfree(&full_path);
free(cmd);
return;
}
fprintf(stdout, "begin import file:%s\n", fname);
int lineNo = 0;
while ((read_len = taosGetLineFile(pFile, &line)) != -1) {
++lineNo;
if (read_len >= tsMaxSQLStringLen) continue;
line[--read_len] = '\0';
if (read_len == 0 || isCommentLine(line)) { // line starts with #
continue;
}
if (line[read_len - 1] == '\\') {
line[read_len - 1] = ' ';
memcpy(cmd + cmd_len, line, read_len);
cmd_len += read_len;
continue;
}
memcpy(cmd + cmd_len, line, read_len);
TAOS_RES* pSql = taos_query(con, cmd);
int32_t code = taos_errno(pSql);
if (code != 0) {
fprintf(stderr, "DB error: %s: %s (%d)\n", taos_errstr(pSql), fname, lineNo);
}
/* free local resouce: allocated memory/metric-meta refcnt */
taos_free_result(pSql);
memset(cmd, 0, MAX_COMMAND_SIZE);
cmd_len = 0;
}
free(cmd);
if(line != NULL) free(line);
wordfree(&full_path);
taosCloseFile(&pFile);
}
void* shellImportThreadFp(void *arg)
{
ShellThreadObj *pThread = (ShellThreadObj*)arg;
setThreadName("shellImportThrd");
for (int f = 0; f < shellSQLFileNum; ++f) {
if (f % pThread->totalThreads == pThread->threadIndex) {
char *SQLFileName = shellSQLFiles[f];
shellSourceFile(pThread->taos, SQLFileName);
}
}
return NULL;
}
static void shellRunImportThreads(SShellArguments* _args)
{
pthread_attr_t thattr;
ShellThreadObj *threadObj = (ShellThreadObj *)calloc(_args->threadNum, sizeof(ShellThreadObj));
for (int t = 0; t < _args->threadNum; ++t) {
ShellThreadObj *pThread = threadObj + t;
pThread->threadIndex = t;
pThread->totalThreads = _args->threadNum;
pThread->taos = taos_connect(_args->host, _args->user, _args->password, _args->database, tsDnodeShellPort);
if (pThread->taos == NULL) {
fprintf(stderr, "ERROR: thread:%d failed connect to TDengine, error:%s\n", pThread->threadIndex, "null taos"/*taos_errstr(pThread->taos)*/);
exit(0);
}
pthread_attr_init(&thattr);
pthread_attr_setdetachstate(&thattr, PTHREAD_CREATE_JOINABLE);
if (pthread_create(&(pThread->threadID), &thattr, shellImportThreadFp, (void*)pThread) != 0) {
fprintf(stderr, "ERROR: thread:%d failed to start\n", pThread->threadIndex);
exit(0);
}
}
for (int t = 0; t < _args->threadNum; ++t) {
pthread_join(threadObj[t].threadID, NULL);
}
for (int t = 0; t < _args->threadNum; ++t) {
taos_close(threadObj[t].taos);
}
free(threadObj);
}
void source_dir(TAOS* con, SShellArguments* _args) {
shellGetDirectoryFileList(_args->dir);
int64_t start = taosGetTimestampMs();
if (shellTablesSQLFile[0] != 0) {
shellSourceFile(con, shellTablesSQLFile);
int64_t end = taosGetTimestampMs();
fprintf(stdout, "import %s finished, time spent %.2f seconds\n", shellTablesSQLFile, (end - start) / 1000.0);
}
shellRunImportThreads(_args);
int64_t end = taosGetTimestampMs();
fprintf(stdout, "import %s finished, time spent %.2f seconds\n", _args->dir, (end - start) / 1000.0);
}