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413 lines (335 loc) · 13.1 KB
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/*
* 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 _DEFAULT_SOURCE
#include "os.h"
#include "ihash.h"
#include "taoserror.h"
#include "taosmsg.h"
#include "tlog.h"
#include "trpc.h"
#include "tsdb.h"
#include "ttime.h"
#include "ttimer.h"
#include "twal.h"
#include "dnode.h"
#include "vnode.h"
#include "vnodeInt.h"
static int32_t tsOpennedVnodes;
static void *tsDnodeVnodesHash;
static void vnodeCleanUp(SVnodeObj *pVnode);
static void vnodeBuildVloadMsg(char *pNode, void * param);
static int vnodeWalCallback(void *arg);
static int32_t vnodeSaveCfg(SMDCreateVnodeMsg *pVnodeCfg);
static int32_t vnodeReadCfg(SVnodeObj *pVnode);
static int vnodeWalCallback(void *arg);
static uint32_t vnodeGetFileInfo(void *ahandle, char *name, uint32_t *index, int32_t *size);
static int vnodeGetWalInfo(void *ahandle, char *name, uint32_t *index);
static void vnodeNotifyRole(void *ahandle, int8_t role);
static pthread_once_t vnodeModuleInit = PTHREAD_ONCE_INIT;
#ifndef _SYNC
tsync_h syncStart(const SSyncInfo *info) { return NULL; }
int syncForwardToPeer(tsync_h shandle, void *pHead, void *mhandle) { return 0; }
#endif
static void vnodeInit() {
vnodeInitWriteFp();
vnodeInitReadFp();
tsDnodeVnodesHash = taosInitIntHash(TSDB_MAX_VNODES, sizeof(SVnodeObj *), taosHashInt);
if (tsDnodeVnodesHash == NULL) {
dError("failed to init vnode list");
}
}
int32_t vnodeCreate(SMDCreateVnodeMsg *pVnodeCfg) {
int32_t code;
pthread_once(&vnodeModuleInit, vnodeInit);
SVnodeObj *pTemp = (SVnodeObj *)taosGetIntHashData(tsDnodeVnodesHash, pVnodeCfg->cfg.vgId);
if (pTemp != NULL) {
dPrint("vgId:%d, vnode already exist, pVnode:%p", pVnodeCfg->cfg.vgId, pTemp);
return TSDB_CODE_SUCCESS;
}
char rootDir[TSDB_FILENAME_LEN] = {0};
sprintf(rootDir, "%s/vnode%d", tsVnodeDir, pVnodeCfg->cfg.vgId);
if (mkdir(rootDir, 0755) != 0) {
if (errno == EACCES) {
return TSDB_CODE_NO_DISK_PERMISSIONS;
} else if (errno == ENOSPC) {
return TSDB_CODE_SERV_NO_DISKSPACE;
} else if (errno == EEXIST) {
} else {
return TSDB_CODE_VG_INIT_FAILED;
}
}
code = vnodeSaveCfg(pVnodeCfg);
if (code != TSDB_CODE_SUCCESS) {
dError("vgId:%d, failed to save vnode cfg, reason:%s", pVnodeCfg->cfg.vgId, tstrerror(code));
return code;
}
STsdbCfg tsdbCfg = {0};
tsdbCfg.precision = pVnodeCfg->cfg.precision;
tsdbCfg.tsdbId = pVnodeCfg->cfg.vgId;
tsdbCfg.maxTables = pVnodeCfg->cfg.maxSessions;
tsdbCfg.daysPerFile = pVnodeCfg->cfg.daysPerFile;
tsdbCfg.minRowsPerFileBlock = -1;
tsdbCfg.maxRowsPerFileBlock = -1;
tsdbCfg.keep = -1;
tsdbCfg.maxCacheSize = -1;
char tsdbDir[TSDB_FILENAME_LEN] = {0};
sprintf(tsdbDir, "%s/vnode%d/tsdb", tsVnodeDir, pVnodeCfg->cfg.vgId);
code = tsdbCreateRepo(tsdbDir, &tsdbCfg, NULL);
if (code != TSDB_CODE_SUCCESS) {
dError("vgId:%d, failed to create tsdb in vnode, reason:%s", pVnodeCfg->cfg.vgId, tstrerror(terrno));
return terrno;
}
dPrint("vgId:%d, vnode is created, clog:%d", pVnodeCfg->cfg.vgId, pVnodeCfg->cfg.commitLog);
code = vnodeOpen(pVnodeCfg->cfg.vgId, rootDir);
return code;
}
int32_t vnodeDrop(int32_t vgId) {
SVnodeObj **ppVnode = (SVnodeObj **)taosGetIntHashData(tsDnodeVnodesHash, vgId);
if (ppVnode == NULL || *ppVnode == NULL) {
dTrace("vgId:%d, failed to drop, vgId not exist", vgId);
return TSDB_CODE_INVALID_VGROUP_ID;
}
SVnodeObj *pVnode = *ppVnode;
dTrace("pVnode:%p vgId:%d, vnode will be dropped", pVnode, pVnode->vgId);
pVnode->status = TAOS_VN_STATUS_DELETING;
vnodeCleanUp(pVnode);
return TSDB_CODE_SUCCESS;
}
int32_t vnodeOpen(int32_t vnode, char *rootDir) {
char temp[TSDB_FILENAME_LEN];
pthread_once(&vnodeModuleInit, vnodeInit);
SVnodeObj *pVnode = calloc(sizeof(SVnodeObj), 1);
pVnode->vgId = vnode;
pVnode->status = TAOS_VN_STATUS_INIT;
pVnode->refCount = 1;
pVnode->version = 0;
taosAddIntHash(tsDnodeVnodesHash, pVnode->vgId, (char *)(&pVnode));
int32_t code = vnodeReadCfg(pVnode);
if (code != TSDB_CODE_SUCCESS) {
dError("pVnode:%p vgId:%d, failed to read cfg file", pVnode, pVnode->vgId);
taosDeleteIntHash(tsDnodeVnodesHash, pVnode->vgId);
return code;
}
pVnode->wqueue = dnodeAllocateWqueue(pVnode);
pVnode->rqueue = dnodeAllocateRqueue(pVnode);
sprintf(temp, "%s/wal", rootDir);
pVnode->wal = walOpen(temp, &pVnode->walCfg);
SSyncInfo syncInfo;
syncInfo.vgId = pVnode->vgId;
syncInfo.version = pVnode->version;
syncInfo.syncCfg = pVnode->syncCfg;
sprintf(syncInfo.path, "%s/tsdb/", rootDir);
syncInfo.ahandle = pVnode;
syncInfo.getWalInfo = vnodeGetWalInfo;
syncInfo.getFileInfo = vnodeGetFileInfo;
syncInfo.writeToCache = vnodeWriteToQueue;
syncInfo.confirmForward = dnodeSendRpcWriteRsp;
syncInfo.notifyRole = vnodeNotifyRole;
pVnode->sync = syncStart(&syncInfo);
pVnode->events = NULL;
pVnode->cq = NULL;
STsdbAppH appH = {0};
appH.appH = (void *)pVnode;
appH.walCallBack = vnodeWalCallback;
sprintf(temp, "%s/tsdb", rootDir);
void *pTsdb = tsdbOpenRepo(temp, &appH);
if (pTsdb == NULL) {
dError("pVnode:%p vgId:%d, failed to open tsdb at %s(%s)", pVnode, pVnode->vgId, temp, tstrerror(terrno));
taosDeleteIntHash(tsDnodeVnodesHash, pVnode->vgId);
return terrno;
}
pVnode->tsdb = pTsdb;
walRestore(pVnode->wal, pVnode, vnodeWriteToQueue);
pVnode->status = TAOS_VN_STATUS_READY;
dTrace("pVnode:%p vgId:%d, vnode is opened in %s", pVnode, pVnode->vgId, rootDir);
atomic_add_fetch_32(&tsOpennedVnodes, 1);
return TSDB_CODE_SUCCESS;
}
int32_t vnodeClose(int32_t vgId) {
SVnodeObj **ppVnode = (SVnodeObj **)taosGetIntHashData(tsDnodeVnodesHash, vgId);
if (ppVnode == NULL || *ppVnode == NULL) return 0;
SVnodeObj *pVnode = *ppVnode;
dTrace("pVnode:%p vgId:%d, vnode will be closed", pVnode, pVnode->vgId);
pVnode->status = TAOS_VN_STATUS_CLOSING;
vnodeCleanUp(pVnode);
return 0;
}
void vnodeRelease(void *pVnodeRaw) {
SVnodeObj *pVnode = pVnodeRaw;
int32_t vgId = pVnode->vgId;
int32_t refCount = atomic_sub_fetch_32(&pVnode->refCount, 1);
assert(refCount >= 0);
if (refCount > 0) {
dTrace("pVnode:%p vgId:%d, release vnode, refCount:%d", pVnode, vgId, refCount);
return;
}
// remove read queue
dnodeFreeRqueue(pVnode->rqueue);
pVnode->rqueue = NULL;
// remove write queue
dnodeFreeWqueue(pVnode->wqueue);
pVnode->wqueue = NULL;
if (pVnode->status == TAOS_VN_STATUS_DELETING) {
// remove the whole directory
}
free(pVnode);
int32_t count = atomic_sub_fetch_32(&tsOpennedVnodes, 1);
dTrace("pVnode:%p vgId:%d, vnode is released, vnodes:%d", pVnode, vgId, count);
if (count <= 0) {
taosCleanUpIntHash(tsDnodeVnodesHash);
vnodeModuleInit = PTHREAD_ONCE_INIT;
tsDnodeVnodesHash = NULL;
}
}
void *vnodeGetVnode(int32_t vgId) {
SVnodeObj **ppVnode = (SVnodeObj **)taosGetIntHashData(tsDnodeVnodesHash, vgId);
if (ppVnode == NULL || *ppVnode == NULL) {
terrno = TSDB_CODE_INVALID_VGROUP_ID;
assert(false);
}
return *ppVnode;
}
void *vnodeAccquireVnode(int32_t vgId) {
SVnodeObj *pVnode = vnodeGetVnode(vgId);
if (pVnode == NULL) return pVnode;
atomic_add_fetch_32(&pVnode->refCount, 1);
dTrace("pVnode:%p vgId:%d, get vnode, refCount:%d", pVnode, pVnode->vgId, pVnode->refCount);
return pVnode;
}
void *vnodeGetRqueue(void *pVnode) {
return ((SVnodeObj *)pVnode)->rqueue;
}
void *vnodeGetWqueue(int32_t vgId) {
SVnodeObj *pVnode = vnodeAccquireVnode(vgId);
if (pVnode == NULL) return NULL;
return pVnode->wqueue;
}
void *vnodeGetWal(void *pVnode) {
return ((SVnodeObj *)pVnode)->wal;
}
void *vnodeGetTsdb(void *pVnode) {
return ((SVnodeObj *)pVnode)->tsdb;
}
void vnodeBuildStatusMsg(void *param) {
SDMStatusMsg *pStatus = param;
taosVisitIntHashWithFp(tsDnodeVnodesHash, vnodeBuildVloadMsg, pStatus);
}
static void vnodeBuildVloadMsg(char *pNode, void * param) {
SVnodeObj *pVnode = *(SVnodeObj **) pNode;
if (pVnode->status == TAOS_VN_STATUS_DELETING) return;
SDMStatusMsg *pStatus = param;
if (pStatus->openVnodes >= TSDB_MAX_VNODES) return;
SVnodeLoad *pLoad = &pStatus->load[pStatus->openVnodes++];
pLoad->vgId = htonl(pVnode->vgId);
pLoad->status = pVnode->status;
pLoad->role = pVnode->role;
}
static void vnodeCleanUp(SVnodeObj *pVnode) {
taosDeleteIntHash(tsDnodeVnodesHash, pVnode->vgId);
//syncStop(pVnode->sync);
tsdbCloseRepo(pVnode->tsdb);
walClose(pVnode->wal);
vnodeRelease(pVnode);
}
// TODO: this is a simple implement
static int vnodeWalCallback(void *arg) {
SVnodeObj *pVnode = arg;
return walRenew(pVnode->wal);
}
static uint32_t vnodeGetFileInfo(void *ahandle, char *name, uint32_t *index, int32_t *size) {
// SVnodeObj *pVnode = ahandle;
//tsdbGetFileInfo(pVnode->tsdb, name, index, size);
return 0;
}
static int vnodeGetWalInfo(void *ahandle, char *name, uint32_t *index) {
SVnodeObj *pVnode = ahandle;
return walGetWalFile(pVnode->wal, name, index);
}
static void vnodeNotifyRole(void *ahandle, int8_t role) {
SVnodeObj *pVnode = ahandle;
pVnode->role = role;
}
static int32_t vnodeSaveCfg(SMDCreateVnodeMsg *pVnodeCfg) {
char cfgFile[TSDB_FILENAME_LEN * 2] = {0};
sprintf(cfgFile, "%s/vnode%d/config", tsVnodeDir, pVnodeCfg->cfg.vgId);
FILE *fp = fopen(cfgFile, "w");
if (!fp) return errno;
fprintf(fp, "commitLog %d\n", pVnodeCfg->cfg.commitLog);
fprintf(fp, "wals %d\n", 3);
fprintf(fp, "arbitratorIp %d\n", pVnodeCfg->vpeerDesc[0].ip);
fprintf(fp, "quorum %d\n", 1);
fprintf(fp, "replica %d\n", pVnodeCfg->cfg.replications);
for (int32_t i = 0; i < pVnodeCfg->cfg.replications; i++) {
fprintf(fp, "index%d nodeId %d nodeIp %u name n%d\n", i, pVnodeCfg->vpeerDesc[i].dnodeId, pVnodeCfg->vpeerDesc[i].ip, pVnodeCfg->vpeerDesc[i].dnodeId);
}
fclose(fp);
dTrace("vgId:%d, save vnode cfg successed", pVnodeCfg->cfg.vgId);
return TSDB_CODE_SUCCESS;
}
// TODO: this is a simple implement
static int32_t vnodeReadCfg(SVnodeObj *pVnode) {
char option[5][16] = {0};
char cfgFile[TSDB_FILENAME_LEN * 2] = {0};
sprintf(cfgFile, "%s/vnode%d/config", tsVnodeDir, pVnode->vgId);
FILE *fp = fopen(cfgFile, "r");
if (!fp) return errno;
int32_t commitLog = -1;
int32_t num = fscanf(fp, "%s %d", option[0], &commitLog);
if (num != 2) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[0], "commitLog") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (commitLog == -1) return TSDB_CODE_INVALID_FILE_FORMAT;
pVnode->walCfg.commitLog = (int8_t)commitLog;
int32_t wals = -1;
num = fscanf(fp, "%s %d", option[0], &wals);
if (num != 2) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[0], "wals") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (wals == -1) return TSDB_CODE_INVALID_FILE_FORMAT;
pVnode->walCfg.wals = (int8_t)wals;
pVnode->walCfg.keep = 0;
int32_t arbitratorIp = -1;
num = fscanf(fp, "%s %u", option[0], &arbitratorIp);
if (num != 2) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[0], "arbitratorIp") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (arbitratorIp == -1) return TSDB_CODE_INVALID_FILE_FORMAT;
pVnode->syncCfg.arbitratorIp = arbitratorIp;
int32_t quorum = -1;
num = fscanf(fp, "%s %d", option[0], &quorum);
if (num != 2) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[0], "quorum") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (quorum == -1) return TSDB_CODE_INVALID_FILE_FORMAT;
pVnode->syncCfg.quorum = (int8_t)quorum;
int32_t replica = -1;
num = fscanf(fp, "%s %d", option[0], &replica);
if (num != 2) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[0], "replica") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (replica == -1) return TSDB_CODE_INVALID_FILE_FORMAT;
pVnode->syncCfg.replica = (int8_t)replica;
for (int32_t i = 0; i < replica; ++i) {
int32_t dnodeId = -1;
uint32_t dnodeIp = -1;
num = fscanf(fp, "%s %s %d %s %u %s %s", option[0], option[1], &dnodeId, option[2], &dnodeIp, option[3], pVnode->syncCfg.nodeInfo[i].name);
if (num != 7) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[1], "nodeId") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[2], "nodeIp") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (strcmp(option[3], "name") != 0) return TSDB_CODE_INVALID_FILE_FORMAT;
if (dnodeId == -1) return TSDB_CODE_INVALID_FILE_FORMAT;
if (dnodeIp == -1) return TSDB_CODE_INVALID_FILE_FORMAT;
pVnode->syncCfg.nodeInfo[i].nodeId = dnodeId;
pVnode->syncCfg.nodeInfo[i].nodeIp = dnodeIp;
}
fclose(fp);
dTrace("pVnode:%p vgId:%d, read vnode cfg successed", pVnode, pVnode->vgId);
return TSDB_CODE_SUCCESS;
}