291 lines
8.3 KiB
C
291 lines
8.3 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define _DEFAULT_SOURCE
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#include "dmMgmt.h"
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static int32_t dmCreateShm(SMgmtWrapper *pWrapper) {
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int32_t shmsize = tsMnodeShmSize;
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if (pWrapper->ntype == VNODE) {
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shmsize = tsVnodeShmSize;
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} else if (pWrapper->ntype == QNODE) {
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shmsize = tsQnodeShmSize;
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} else if (pWrapper->ntype == SNODE) {
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shmsize = tsSnodeShmSize;
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} else if (pWrapper->ntype == MNODE) {
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shmsize = tsMnodeShmSize;
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} else if (pWrapper->ntype == BNODE) {
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shmsize = tsBnodeShmSize;
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} else {
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return -1;
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}
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if (taosCreateShm(&pWrapper->proc.shm, pWrapper->ntype, shmsize) != 0) {
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terrno = TAOS_SYSTEM_ERROR(terrno);
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dError("node:%s, failed to create shm size:%d since %s", pWrapper->name, shmsize, terrstr());
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return -1;
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}
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dInfo("node:%s, shm:%d is created, size:%d", pWrapper->name, pWrapper->proc.shm.id, shmsize);
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return 0;
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}
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static int32_t dmNewProc(SMgmtWrapper *pWrapper, EDndNodeType ntype) {
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char tstr[8] = {0};
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char *args[6] = {0};
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snprintf(tstr, sizeof(tstr), "%d", ntype);
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args[1] = "-c";
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args[2] = configDir;
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args[3] = "-n";
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args[4] = tstr;
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args[5] = NULL;
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int32_t pid = taosNewProc(args);
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if (pid <= 0) {
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terrno = TAOS_SYSTEM_ERROR(errno);
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dError("node:%s, failed to exec in new process since %s", pWrapper->name, terrstr());
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return -1;
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}
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taosIgnSignal(SIGCHLD);
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pWrapper->proc.pid = pid;
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dInfo("node:%s, continue running in new pid:%d", pWrapper->name, pid);
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return 0;
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}
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int32_t dmOpenNode(SMgmtWrapper *pWrapper) {
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SDnode *pDnode = pWrapper->pDnode;
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if (taosMkDir(pWrapper->path) != 0) {
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terrno = TAOS_SYSTEM_ERROR(errno);
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dError("node:%s, failed to create dir:%s since %s", pWrapper->name, pWrapper->path, terrstr());
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return -1;
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}
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SMgmtOutputOpt output = {0};
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SMgmtInputOpt input = dmBuildMgmtInputOpt(pWrapper);
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if (pWrapper->ntype == DNODE || InChildProc(pWrapper)) {
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tmsgSetDefault(&input.msgCb);
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}
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if (OnlyInSingleProc(pWrapper)) {
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dInfo("node:%s, start to open", pWrapper->name);
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if ((*pWrapper->func.openFp)(&input, &output) != 0) {
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dError("node:%s, failed to open since %s", pWrapper->name, terrstr());
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return -1;
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}
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dInfo("node:%s, has been opened", pWrapper->name);
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pWrapper->deployed = true;
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}
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if (InParentProc(pWrapper)) {
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dDebug("node:%s, start to open", pWrapper->name);
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if (dmCreateShm(pWrapper) != 0) {
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return -1;
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}
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if (dmWriteShmFile(pWrapper->path, pWrapper->name, &pWrapper->proc.shm) != 0) {
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return -1;
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}
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if (OnlyInParentProc(pWrapper)) {
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if (dmInitProc(pWrapper) != 0) {
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dError("node:%s, failed to init proc since %s", pWrapper->name, terrstr());
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return -1;
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}
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if (pDnode->rtype == NODE_END) {
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dInfo("node:%s, should be started manually in child process", pWrapper->name);
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} else {
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if (dmNewProc(pWrapper, pWrapper->ntype) != 0) {
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return -1;
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}
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}
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if (dmRunProc(&pWrapper->proc) != 0) {
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dError("node:%s, failed to run proc since %s", pWrapper->name, terrstr());
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return -1;
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}
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}
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dDebug("node:%s, has been opened in parent process", pWrapper->name);
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}
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if (InChildProc(pWrapper)) {
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dDebug("node:%s, start to open", pWrapper->name);
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if ((*pWrapper->func.openFp)(&input, &output) != 0) {
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dError("node:%s, failed to open since %s", pWrapper->name, terrstr());
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return -1;
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}
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if (dmInitProc(pWrapper) != 0) {
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return -1;
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}
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if (dmRunProc(&pWrapper->proc) != 0) {
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return -1;
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}
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dDebug("node:%s, has been opened in child process", pWrapper->name);
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pWrapper->deployed = true;
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}
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if (output.pMgmt != NULL) {
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pWrapper->pMgmt = output.pMgmt;
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}
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dmReportStartup(pWrapper->name, "openned");
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return 0;
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}
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int32_t dmStartNode(SMgmtWrapper *pWrapper) {
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if (OnlyInParentProc(pWrapper)) return 0;
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if (pWrapper->func.startFp != NULL) {
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dDebug("node:%s, start to start", pWrapper->name);
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if ((*pWrapper->func.startFp)(pWrapper->pMgmt) != 0) {
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dError("node:%s, failed to start since %s", pWrapper->name, terrstr());
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return -1;
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}
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dDebug("node:%s, has been started", pWrapper->name);
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}
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dmReportStartup(pWrapper->name, "started");
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return 0;
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}
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void dmStopNode(SMgmtWrapper *pWrapper) {
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if (pWrapper->func.stopFp != NULL && pWrapper->pMgmt != NULL) {
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dDebug("node:%s, start to stop", pWrapper->name);
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(*pWrapper->func.stopFp)(pWrapper->pMgmt);
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dDebug("node:%s, has been stopped", pWrapper->name);
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}
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}
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void dmCloseNode(SMgmtWrapper *pWrapper) {
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dInfo("node:%s, start to close", pWrapper->name);
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pWrapper->deployed = false;
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while (pWrapper->refCount > 0) {
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taosMsleep(10);
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}
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if (OnlyInParentProc(pWrapper)) {
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int32_t pid = pWrapper->proc.pid;
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if (pid > 0 && taosProcExist(pid)) {
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dInfo("node:%s, send kill signal to the child pid:%d", pWrapper->name, pid);
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taosKillProc(pid);
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dInfo("node:%s, wait for child pid:%d to stop", pWrapper->name, pid);
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taosWaitProc(pid);
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dInfo("node:%s, child pid:%d is stopped", pWrapper->name, pid);
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}
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}
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taosThreadRwlockWrlock(&pWrapper->lock);
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if (pWrapper->pMgmt != NULL) {
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(*pWrapper->func.closeFp)(pWrapper->pMgmt);
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pWrapper->pMgmt = NULL;
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}
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taosThreadRwlockUnlock(&pWrapper->lock);
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if (!OnlyInSingleProc(pWrapper)) {
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dmCleanupProc(pWrapper);
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}
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dInfo("node:%s, has been closed", pWrapper->name);
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}
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static int32_t dmOpenNodes(SDnode *pDnode) {
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for (EDndNodeType ntype = DNODE; ntype < NODE_END; ++ntype) {
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SMgmtWrapper *pWrapper = &pDnode->wrappers[ntype];
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if (!pWrapper->required) continue;
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if (dmOpenNode(pWrapper) != 0) {
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dError("node:%s, failed to open since %s", pWrapper->name, terrstr());
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return -1;
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}
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}
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dmSetStatus(pDnode, DND_STAT_RUNNING);
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return 0;
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}
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static int32_t dmStartNodes(SDnode *pDnode) {
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for (EDndNodeType ntype = DNODE; ntype < NODE_END; ++ntype) {
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SMgmtWrapper *pWrapper = &pDnode->wrappers[ntype];
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if (!pWrapper->required) continue;
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if (dmStartNode(pWrapper) != 0) {
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dError("node:%s, failed to start since %s", pWrapper->name, terrstr());
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return -1;
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}
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}
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dInfo("TDengine initialized successfully");
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dmReportStartup("TDengine", "initialized successfully");
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return 0;
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}
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static void dmStopNodes(SDnode *pDnode) {
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for (EDndNodeType n = DNODE; n < NODE_END; ++n) {
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SMgmtWrapper *pWrapper = &pDnode->wrappers[n];
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dmStopNode(pWrapper);
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}
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}
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static void dmCloseNodes(SDnode *pDnode) {
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for (EDndNodeType n = DNODE; n < NODE_END; ++n) {
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SMgmtWrapper *pWrapper = &pDnode->wrappers[n];
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dmCloseNode(pWrapper);
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}
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}
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static void dmWatchNodes(SDnode *pDnode) {
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if (pDnode->ptype != PARENT_PROC) return;
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if (pDnode->rtype == NODE_END) return;
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taosThreadMutexLock(&pDnode->mutex);
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for (EDndNodeType ntype = DNODE + 1; ntype < NODE_END; ++ntype) {
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SMgmtWrapper *pWrapper = &pDnode->wrappers[ntype];
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SProc *proc = &pWrapper->proc;
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if (!pWrapper->required) continue;
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if (!OnlyInParentProc(pWrapper)) continue;
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if (proc->pid <= 0 || !taosProcExist(proc->pid)) {
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dError("node:%s, pid:%d is killed and needs to restart", pWrapper->name, proc->pid);
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dmCloseProcRpcHandles(&pWrapper->proc);
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dmNewProc(pWrapper, ntype);
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}
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}
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taosThreadMutexUnlock(&pDnode->mutex);
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}
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int32_t dmRunDnode(SDnode *pDnode) {
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if (dmOpenNodes(pDnode) != 0) {
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dError("failed to open nodes since %s", terrstr());
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return -1;
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}
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if (dmStartNodes(pDnode) != 0) {
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dError("failed to start nodes since %s", terrstr());
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return -1;
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}
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while (1) {
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if (pDnode->stop) {
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dInfo("TDengine is about to stop");
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dmSetStatus(pDnode, DND_STAT_STOPPED);
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dmStopNodes(pDnode);
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dmCloseNodes(pDnode);
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return 0;
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}
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dmWatchNodes(pDnode);
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taosMsleep(100);
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}
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}
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