Merge pull request #11192 from taosdata/feature/shm

add multiprocess mode to CI

include/common/tmsgcb.h

@@ -50,7 +50,6 @@ typedef struct {
   PutToQueueFp            queueFps[QUEUE_MAX];
   GetQueueSizeFp          qsizeFp;
   SendReqFp               sendReqFp;
-  SendMnodeReqFp          sendMnodeReqFp;
   SendRspFp               sendRspFp;
   RegisterBrokenLinkArgFp registerBrokenLinkArgFp;
   ReleaseHandleFp         releaseHandleFp;
@@ -60,7 +59,6 @@ void    tmsgSetDefaultMsgCb(const SMsgCb* pMsgCb);
 int32_t tmsgPutToQueue(const SMsgCb* pMsgCb, EQueueType qtype, SRpcMsg* pReq);
 int32_t tmsgGetQueueSize(const SMsgCb* pMsgCb, int32_t vgId, EQueueType qtype);
 int32_t tmsgSendReq(const SMsgCb* pMsgCb, const SEpSet* epSet, SRpcMsg* pReq);
-int32_t tmsgSendMnodeReq(const SMsgCb* pMsgCb, SRpcMsg* pReq);
 void    tmsgSendRsp(const SRpcMsg* pRsp);
 void    tmsgRegisterBrokenLinkArg(const SMsgCb* pMsgCb, SRpcMsg* pMsg);
 void    tmsgReleaseHandle(void* handle, int8_t type);

include/dnode/mnode/mnode.h

@@ -29,8 +29,7 @@ extern "C" {
 typedef struct SMnode SMnode;
 
 typedef struct {
-  int32_t  dnodeId;
-  int64_t  clusterId;
+  bool     deploy;
   int8_t   replica;
   int8_t   selfIndex;
   SReplica replicas[TSDB_MAX_REPLICA];

include/os/osShm.h

@@ -26,7 +26,7 @@ typedef struct {
   void*   ptr;
 } SShm;
 
-int32_t taosCreateShm(SShm *pShm, int32_t shmsize) ;
+int32_t taosCreateShm(SShm *pShm, int32_t key, int32_t shmsize) ;
 void    taosDropShm(SShm *pShm);
 int32_t taosAttachShm(SShm *pShm);
 

include/util/tprocess.h

@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-typedef enum { PROC_REQ, PROC_RSP, PROC_REG, PROC_RELEASE } ProcFuncType;
+typedef enum { PROC_QUEUE, PROC_REQ, PROC_RSP, PROC_REGIST, PROC_RELEASE } ProcFuncType;
 
 typedef struct SProcQueue SProcQueue;
 typedef struct SProcObj   SProcObj;
@@ -53,7 +53,7 @@ void      taosProcCleanup(SProcObj *pProc);
 int32_t   taosProcRun(SProcObj *pProc);
 int32_t   taosProcPutToChildQ(SProcObj *pProc, const void *pHead, int16_t headLen, const void *pBody, int32_t bodyLen,
                               ProcFuncType ftype);
-int32_t   taosProcPutToParentQ(SProcObj *pProc, const void *pHead, int16_t headLen, const void *pBody, int32_t bodyLen,
+void      taosProcPutToParentQ(SProcObj *pProc, const void *pHead, int16_t headLen, const void *pBody, int32_t bodyLen,
                                ProcFuncType ftype);
 
 #ifdef __cplusplus

source/common/src/tmsgcb.c

@@ -32,10 +32,6 @@ int32_t tmsgSendReq(const SMsgCb* pMsgCb, const SEpSet* epSet, SRpcMsg* pReq) {
   return (*pMsgCb->sendReqFp)(pMsgCb->pWrapper, epSet, pReq);
 }
 
-int32_t tmsgSendMnodeReq(const SMsgCb* pMsgCb, SRpcMsg* pReq) {
-  return (*pMsgCb->sendMnodeReqFp)(pMsgCb->pWrapper, pReq);
-}
-
 void tmsgSendRsp(const SRpcMsg* pRsp) { return (*tsDefaultMsgCb.sendRspFp)(tsDefaultMsgCb.pWrapper, pRsp); }
 
 void tmsgRegisterBrokenLinkArg(const SMsgCb* pMsgCb, SRpcMsg* pMsg) {

source/dnode/mgmt/bm/src/bmInt.c

@@ -19,12 +19,7 @@
 static int32_t bmRequire(SMgmtWrapper *pWrapper, bool *required) { return dndReadFile(pWrapper, required); }
 
 static void bmInitOption(SBnodeMgmt *pMgmt, SBnodeOpt *pOption) {
-  SMsgCb msgCb = {0};
-  msgCb.pWrapper = pMgmt->pWrapper;
-  msgCb.sendReqFp = dndSendReqToDnode;
-  msgCb.sendMnodeReqFp = dndSendReqToMnode;
-  msgCb.sendRspFp = dndSendRsp;
-  msgCb.registerBrokenLinkArgFp = dndRegisterBrokenLinkArg;
+  SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
   pOption->msgCb = msgCb;
 }
 

source/dnode/mgmt/main/exe/dndMain.c

@@ -30,7 +30,6 @@ static struct {
 } global = {0};
 
 static void dndStopDnode(int signum, void *info, void *ctx) {
-  dInfo("system signal:%d received", signum);
   SDnode *pDnode = atomic_val_compare_exchange_ptr(&global.pDnode, 0, global.pDnode);
   if (pDnode != NULL) {
     dndHandleEvent(pDnode, DND_EVENT_STOP);
@@ -41,8 +40,10 @@ static void dndSetSignalHandle() {
   taosSetSignal(SIGTERM, dndStopDnode);
   taosSetSignal(SIGHUP, dndStopDnode);
   taosSetSignal(SIGINT, dndStopDnode);
+  taosSetSignal(SIGTSTP, dndStopDnode);
   taosSetSignal(SIGABRT, dndStopDnode);
   taosSetSignal(SIGBREAK, dndStopDnode);
+  taosSetSignal(SIGQUIT, dndStopDnode);
 
   if (!tsMultiProcess) {
   } else if (global.ntype == DNODE || global.ntype == NODE_MAX) {
@@ -72,7 +73,7 @@ static int32_t dndParseArgs(int32_t argc, char const *argv[]) {
     } else if (strcmp(argv[i], "-n") == 0) {
       global.ntype = atoi(argv[++i]);
       if (global.ntype <= DNODE || global.ntype > NODE_MAX) {
-        printf("'-n' range is [1-5], default is 0\n");
+        printf("'-n' range is [1 - %d], default is 0\n", NODE_MAX - 1);
         return -1;
       }
     } else if (strcmp(argv[i], "-k") == 0) {

source/dnode/mgmt/main/inc/dnd.h

@@ -149,7 +149,7 @@ int32_t dndInitClient(SDnode *pDnode);
 void    dndCleanupClient(SDnode *pDnode);
 int32_t dndProcessNodeMsg(SDnode *pDnode, SNodeMsg *pMsg);
 int32_t dndSendReqToMnode(SMgmtWrapper *pWrapper, SRpcMsg *pMsg);
-int32_t dndSendReqToDnode(SMgmtWrapper *pWrapper, const SEpSet *pEpSet, SRpcMsg *pMsg);
+int32_t dndSendReq(SMgmtWrapper *pWrapper, const SEpSet *pEpSet, SRpcMsg *pMsg);
 void    dndSendRsp(SMgmtWrapper *pWrapper, const SRpcMsg *pRsp);
 void    dndRegisterBrokenLinkArg(SMgmtWrapper *pWrapper, SRpcMsg *pMsg);
 SMsgCb  dndCreateMsgcb(SMgmtWrapper *pWrapper);

source/dnode/mgmt/main/src/dndExec.c

@@ -45,7 +45,7 @@ int32_t dndOpenNode(SMgmtWrapper *pWrapper) {
 }
 
 void dndCloseNode(SMgmtWrapper *pWrapper) {
-  dDebug("node:%s, start to close", pWrapper->name);
+  dDebug("node:%s, mgmt start to close", pWrapper->name);
   pWrapper->required = false;
   taosWLockLatch(&pWrapper->latch);
   if (pWrapper->deployed) {
@@ -62,7 +62,7 @@ void dndCloseNode(SMgmtWrapper *pWrapper) {
     taosProcCleanup(pWrapper->pProc);
     pWrapper->pProc = NULL;
   }
-  dDebug("node:%s, has been closed", pWrapper->name);
+  dDebug("node:%s, mgmt has been closed", pWrapper->name);
 }
 
 static void dndConsumeChildQueue(SMgmtWrapper *pWrapper, SNodeMsg *pMsg, int16_t msgLen, void *pCont, int32_t contLen,
@@ -90,10 +90,10 @@ static void dndConsumeChildQueue(SMgmtWrapper *pWrapper, SNodeMsg *pMsg, int16_t
 static void dndConsumeParentQueue(SMgmtWrapper *pWrapper, SRpcMsg *pMsg, int16_t msgLen, void *pCont, int32_t contLen,
                                   ProcFuncType ftype) {
   pMsg->pCont = pCont;
-  dTrace("msg:%p, get from parent queue, handle:%p app:%p", pMsg, pMsg->handle, pMsg->ahandle);
+  dTrace("msg:%p, get from parent queue, ftype:%d handle:%p, app:%p", pMsg, ftype, pMsg->handle, pMsg->ahandle);
 
   switch (ftype) {
-    case PROC_REG:
+    case PROC_REGIST:
       rpcRegisterBrokenLinkArg(pMsg);
       break;
     case PROC_RELEASE:
@@ -101,11 +101,14 @@ static void dndConsumeParentQueue(SMgmtWrapper *pWrapper, SRpcMsg *pMsg, int16_t
       rpcFreeCont(pCont);
       break;
     case PROC_REQ:
-      // todo send to dnode
       dndSendReqToMnode(pWrapper, pMsg);
-    default:
+      // dndSendReq(pWrapper, (const SEpSet *)((char *)pMsg + sizeof(SRpcMsg)), pMsg);
+      break;
+    case PROC_RSP:
       dndSendRpcRsp(pWrapper, pMsg);
       break;
+    default:
+      break;
   }
   taosMemoryFree(pMsg);
 }
@@ -180,6 +183,7 @@ static int32_t dndRunInSingleProcess(SDnode *pDnode) {
   while (1) {
     if (pDnode->event == DND_EVENT_STOP) {
       dInfo("dnode is about to stop");
+      dndSetStatus(pDnode, DND_STAT_STOPPED);
       break;
     }
     taosMsleep(100);
@@ -202,7 +206,7 @@ static int32_t dndRunInParentProcess(SDnode *pDnode) {
     if (!pWrapper->required) continue;
 
     int32_t shmsize = 1024 * 1024 * 2;  // size will be a configuration item
-    if (taosCreateShm(&pWrapper->shm, shmsize) != 0) {
+    if (taosCreateShm(&pWrapper->shm, n, shmsize) != 0) {
       terrno = TAOS_SYSTEM_ERROR(terrno);
       dError("node:%s, failed to create shm size:%d since %s", pWrapper->name, shmsize, terrstr());
       return -1;
@@ -255,6 +259,8 @@ static int32_t dndRunInParentProcess(SDnode *pDnode) {
   while (1) {
     if (pDnode->event == DND_EVENT_STOP) {
       dInfo("dnode is about to stop");
+      dndSetStatus(pDnode, DND_STAT_STOPPED);
+
       for (ENodeType n = DNODE + 1; n < NODE_MAX; ++n) {
         SMgmtWrapper *pWrapper = &pDnode->wrappers[n];
         if (!pWrapper->required) continue;
@@ -263,15 +269,6 @@ static int32_t dndRunInParentProcess(SDnode *pDnode) {
         if (pWrapper->procId > 0 && taosProcExist(pWrapper->procId)) {
           dInfo("node:%s, send kill signal to the child process:%d", pWrapper->name, pWrapper->procId);
           taosKillProc(pWrapper->procId);
-        }
-      }
-
-      for (ENodeType n = DNODE + 1; n < NODE_MAX; ++n) {
-        SMgmtWrapper *pWrapper = &pDnode->wrappers[n];
-        if (!pWrapper->required) continue;
-        if (pDnode->ntype == NODE_MAX) continue;
-
-        if (pWrapper->procId > 0 && taosProcExist(pWrapper->procId)) {
           dInfo("node:%s, wait for child process:%d to stop", pWrapper->name, pWrapper->procId);
           taosWaitProc(pWrapper->procId);
           dInfo("node:%s, child process:%d is stopped", pWrapper->name, pWrapper->procId);
@@ -331,6 +328,8 @@ static int32_t dndRunInChildProcess(SDnode *pDnode) {
     }
   }
 
+  dndSetStatus(pDnode, DND_STAT_RUNNING);
+
   if (taosProcRun(pWrapper->pProc) != 0) {
     dError("node:%s, failed to run proc since %s", pWrapper->name, terrstr());
     return -1;
@@ -340,11 +339,14 @@ static int32_t dndRunInChildProcess(SDnode *pDnode) {
   dndReportStartup(pDnode, "TDengine", "initialized successfully");
   while (1) {
     if (pDnode->event == DND_EVENT_STOP) {
-      dInfo("dnode is about to stop");
+      dInfo("%s is about to stop", pWrapper->name);
+      dndSetStatus(pDnode, DND_STAT_STOPPED);
       break;
     }
     taosMsleep(100);
   }
+
+  return 0;
 }
 
 int32_t dndRun(SDnode *pDnode) {

source/dnode/mgmt/main/src/dndInt.c

@@ -133,14 +133,6 @@ _OVER:
 void dndClose(SDnode *pDnode) {
   if (pDnode == NULL) return;
 
-  if (dndGetStatus(pDnode) == DND_STAT_STOPPED) {
-    dError("dnode is shutting down, data:%p", pDnode);
-    return;
-  }
-
-  dInfo("start to close dnode, data:%p", pDnode);
-  dndSetStatus(pDnode, DND_STAT_STOPPED);
-
   for (ENodeType n = 0; n < NODE_MAX; ++n) {
     SMgmtWrapper *pWrapper = &pDnode->wrappers[n];
     dndCloseNode(pWrapper);
@@ -151,7 +143,6 @@ void dndClose(SDnode *pDnode) {
 }
 
 void dndHandleEvent(SDnode *pDnode, EDndEvent event) {
-  dInfo("dnode receive %s event, data:%p", dndEventStr(event), pDnode);
   if (event == DND_EVENT_STOP) {
     pDnode->event = event;
   }

source/dnode/mgmt/main/src/dndTransport.c

@@ -319,22 +319,6 @@ static int32_t dndSendRpcReq(STransMgmt *pMgmt, const SEpSet *pEpSet, SRpcMsg *p
   return 0;
 }
 
-int32_t dndSendReqToDnode(SMgmtWrapper *pWrapper, const SEpSet *pEpSet, SRpcMsg *pReq) {
-  if (pWrapper->procType != PROC_CHILD) {
-    SDnode *pDnode = pWrapper->pDnode;
-    if (dndGetStatus(pDnode) != DND_STAT_RUNNING) {
-      terrno = TSDB_CODE_DND_OFFLINE;
-      dError("failed to send rpc msg since %s, handle:%p", terrstr(), pReq->handle);
-      return -1;
-    }
-    return dndSendRpcReq(&pDnode->trans, pEpSet, pReq);
-  } else {
-    while (taosProcPutToParentQ(pWrapper->pProc, pReq, sizeof(SRpcMsg), pReq->pCont, pReq->contLen, PROC_REQ) != 0) {
-      taosMsleep(1);
-    }
-  }
-}
-
 int32_t dndSendReqToMnode(SMgmtWrapper *pWrapper, SRpcMsg *pReq) {
   SDnode     *pDnode = pWrapper->pDnode;
   STransMgmt *pTrans = &pDnode->trans;
@@ -362,13 +346,37 @@ void dndSendRpcRsp(SMgmtWrapper *pWrapper, const SRpcMsg *pRsp) {
   }
 }
 
+int32_t dndSendReq(SMgmtWrapper *pWrapper, const SEpSet *pEpSet, SRpcMsg *pReq) {
+  SDnode *pDnode = pWrapper->pDnode;
+  if (dndGetStatus(pDnode) != DND_STAT_RUNNING) {
+    terrno = TSDB_CODE_DND_OFFLINE;
+    dError("failed to send rpc msg since %s, handle:%p", terrstr(), pReq->handle);
+    return -1;
+  }
+
+  if (pWrapper->procType != PROC_CHILD) {
+    return dndSendRpcReq(&pDnode->trans, pEpSet, pReq);
+  } else {
+    int32_t headLen = sizeof(SRpcMsg) + sizeof(SEpSet);
+    char   *pHead = taosMemoryMalloc(headLen);
+    if (pHead == NULL) {
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
+      return -1;
+    }
+    memcpy(pHead, pReq, sizeof(SRpcMsg));
+    memcpy(pHead + sizeof(SRpcMsg), pEpSet, sizeof(SEpSet));
+
+    taosProcPutToParentQ(pWrapper->pProc, pReq, headLen, pReq->pCont, pReq->contLen, PROC_REQ);
+    taosMemoryFree(pHead);
+    return 0;
+  }
+}
+
 void dndSendRsp(SMgmtWrapper *pWrapper, const SRpcMsg *pRsp) {
   if (pWrapper->procType != PROC_CHILD) {
     dndSendRpcRsp(pWrapper, pRsp);
   } else {
-    while (taosProcPutToParentQ(pWrapper->pProc, pRsp, sizeof(SRpcMsg), pRsp->pCont, pRsp->contLen, PROC_RSP) != 0) {
-      taosMsleep(1);
-    }
+    taosProcPutToParentQ(pWrapper->pProc, pRsp, sizeof(SRpcMsg), pRsp->pCont, pRsp->contLen, PROC_RSP);
   }
 }
 
@@ -376,9 +384,7 @@ void dndRegisterBrokenLinkArg(SMgmtWrapper *pWrapper, SRpcMsg *pMsg) {
   if (pWrapper->procType != PROC_CHILD) {
     rpcRegisterBrokenLinkArg(pMsg);
   } else {
-    while (taosProcPutToParentQ(pWrapper->pProc, pMsg, sizeof(SRpcMsg), pMsg->pCont, pMsg->contLen, PROC_REG) != 0) {
-      taosMsleep(1);
-    }
+    taosProcPutToParentQ(pWrapper->pProc, pMsg, sizeof(SRpcMsg), pMsg->pCont, pMsg->contLen, PROC_REGIST);
   }
 }
 
@@ -387,20 +393,17 @@ static void dndReleaseHandle(SMgmtWrapper *pWrapper, void *handle, int8_t type)
     rpcReleaseHandle(handle, type);
   } else {
     SRpcMsg msg = {.handle = handle, .code = type};
-    while (taosProcPutToParentQ(pWrapper->pProc, &msg, sizeof(SRpcMsg), NULL, 0, PROC_RELEASE) != 0) {
-      taosMsleep(1);
-    }
+    taosProcPutToParentQ(pWrapper->pProc, &msg, sizeof(SRpcMsg), NULL, 0, PROC_RELEASE);
   }
 }
 
 SMsgCb dndCreateMsgcb(SMgmtWrapper *pWrapper) {
   SMsgCb msgCb = {
       .pWrapper = pWrapper,
+      .sendReqFp = dndSendReq,
+      .sendRspFp = dndSendRsp,
       .registerBrokenLinkArgFp = dndRegisterBrokenLinkArg,
       .releaseHandleFp = dndReleaseHandle,
-      .sendMnodeReqFp = dndSendReqToMnode,
-      .sendReqFp = dndSendReqToDnode,
-      .sendRspFp = dndSendRsp,
   };
   return msgCb;
 }
\ No newline at end of file

source/dnode/mgmt/mm/src/mmFile.c

@@ -111,7 +111,7 @@ int32_t mmWriteFile(SMnodeMgmt *pMgmt, bool deployed) {
 
   TdFilePtr pFile = taosOpenFile(file, TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC);
   if (pFile == NULL) {
-    terrno = TAOS_SYSTEM_ERROR(errno);;
+    terrno = TAOS_SYSTEM_ERROR(errno);
     dError("failed to write %s since %s", file, terrstr());
     return -1;
   }
@@ -145,7 +145,7 @@ int32_t mmWriteFile(SMnodeMgmt *pMgmt, bool deployed) {
   snprintf(realfile, sizeof(realfile), "%s%smnode.json", pMgmt->path, TD_DIRSEP);
 
   if (taosRenameFile(file, realfile) != 0) {
-    terrno = TAOS_SYSTEM_ERROR(errno);;
+    terrno = TAOS_SYSTEM_ERROR(errno);
     dError("failed to rename %s since %s", file, terrstr());
     return -1;
   }

source/dnode/mgmt/mm/src/mmInt.c

@@ -39,20 +39,11 @@ static int32_t mmRequire(SMgmtWrapper *pWrapper, bool *required) {
 }
 
 static void mmInitOption(SMnodeMgmt *pMgmt, SMnodeOpt *pOption) {
-  SDnode *pDnode = pMgmt->pDnode;
-  pOption->dnodeId = pDnode->dnodeId;
-  pOption->clusterId = pDnode->clusterId;
-
-  SMsgCb msgCb = {0};
-  msgCb.pWrapper = pMgmt->pWrapper;
+  SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
   msgCb.queueFps[QUERY_QUEUE] = mmPutMsgToQueryQueue;
   msgCb.queueFps[READ_QUEUE] = mmPutMsgToReadQueue;
   msgCb.queueFps[WRITE_QUEUE] = mmPutMsgToWriteQueue;
   msgCb.queueFps[SYNC_QUEUE] = mmPutMsgToWriteQueue;
-  msgCb.sendReqFp = dndSendReqToDnode;
-  msgCb.sendMnodeReqFp = dndSendReqToMnode;
-  msgCb.sendRspFp = dndSendRsp;
-  msgCb.registerBrokenLinkArgFp = dndRegisterBrokenLinkArg;
   pOption->msgCb = msgCb;
 }
 
@@ -66,6 +57,7 @@ static void mmBuildOptionForDeploy(SMnodeMgmt *pMgmt, SMnodeOpt *pOption) {
   pReplica->id = 1;
   pReplica->port = pDnode->serverPort;
   tstrncpy(pReplica->fqdn, pDnode->localFqdn, TSDB_FQDN_LEN);
+  pOption->deploy = true;
 
   pMgmt->selfIndex = pOption->selfIndex;
   pMgmt->replica = pOption->replica;
@@ -77,6 +69,7 @@ static void mmBuildOptionForOpen(SMnodeMgmt *pMgmt, SMnodeOpt *pOption) {
   pOption->selfIndex = pMgmt->selfIndex;
   pOption->replica = pMgmt->replica;
   memcpy(&pOption->replicas, pMgmt->replicas, sizeof(SReplica) * TSDB_MAX_REPLICA);
+  pOption->deploy = false;
 }
 
 static int32_t mmBuildOptionFromReq(SMnodeMgmt *pMgmt, SMnodeOpt *pOption, SDCreateMnodeReq *pCreate) {
@@ -89,7 +82,7 @@ static int32_t mmBuildOptionFromReq(SMnodeMgmt *pMgmt, SMnodeOpt *pOption, SDCre
     pReplica->id = pCreate->replicas[i].id;
     pReplica->port = pCreate->replicas[i].port;
     memcpy(pReplica->fqdn, pCreate->replicas[i].fqdn, TSDB_FQDN_LEN);
-    if (pReplica->id == pOption->dnodeId) {
+    if (pReplica->id == pMgmt->pDnode->dnodeId) {
       pOption->selfIndex = i;
     }
   }
@@ -98,6 +91,7 @@ static int32_t mmBuildOptionFromReq(SMnodeMgmt *pMgmt, SMnodeOpt *pOption, SDCre
     dError("failed to build mnode options since %s", terrstr());
     return -1;
   }
+  pOption->deploy = true;
 
   pMgmt->selfIndex = pOption->selfIndex;
   pMgmt->replica = pOption->replica;
@@ -225,9 +219,7 @@ int32_t mmOpenFromMsg(SMgmtWrapper *pWrapper, SDCreateMnodeReq *pReq) {
   return code;
 }
 
-static int32_t mmOpen(SMgmtWrapper *pWrapper) {
-  return mmOpenFromMsg(pWrapper, NULL);
-}
+static int32_t mmOpen(SMgmtWrapper *pWrapper) { return mmOpenFromMsg(pWrapper, NULL); }
 
 static int32_t mmStart(SMgmtWrapper *pWrapper) {
   dDebug("mnode-mgmt start to run");
@@ -258,7 +250,7 @@ int32_t mmGetUserAuth(SMgmtWrapper *pWrapper, char *user, char *spi, char *encry
 }
 
 int32_t mmMonitorMnodeInfo(SMgmtWrapper *pWrapper, SMonClusterInfo *pClusterInfo, SMonVgroupInfo *pVgroupInfo,
-                         SMonGrantInfo *pGrantInfo) {
+                           SMonGrantInfo *pGrantInfo) {
   SMnodeMgmt *pMgmt = pWrapper->pMgmt;
   return mndGetMonitorInfo(pMgmt->pMnode, pClusterInfo, pVgroupInfo, pGrantInfo);
 }

source/dnode/mgmt/qm/src/qmInt.c

@@ -19,15 +19,10 @@
 static int32_t qmRequire(SMgmtWrapper *pWrapper, bool *required) { return dndReadFile(pWrapper, required); }
 
 static void qmInitOption(SQnodeMgmt *pMgmt, SQnodeOpt *pOption) {
-  SMsgCb msgCb = {0};
-  msgCb.pWrapper = pMgmt->pWrapper;
+  SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
   msgCb.queueFps[QUERY_QUEUE] = qmPutMsgToQueryQueue;
   msgCb.queueFps[FETCH_QUEUE] = qmPutMsgToFetchQueue;
   msgCb.qsizeFp = qmGetQueueSize;
-  msgCb.sendReqFp = dndSendReqToDnode;
-  msgCb.sendMnodeReqFp = dndSendReqToMnode;
-  msgCb.sendRspFp = dndSendRsp;
-  msgCb.registerBrokenLinkArgFp = dndRegisterBrokenLinkArg;
   pOption->msgCb = msgCb;
 }
 

source/dnode/mgmt/sm/src/smInt.c

@@ -19,12 +19,7 @@
 static int32_t smRequire(SMgmtWrapper *pWrapper, bool *required) { return dndReadFile(pWrapper, required); }
 
 static void smInitOption(SSnodeMgmt *pMgmt, SSnodeOpt *pOption) {
-  SMsgCb msgCb = {0};
-  msgCb.pWrapper = pMgmt->pWrapper;
-  msgCb.sendReqFp = dndSendReqToDnode;
-  msgCb.sendMnodeReqFp = dndSendReqToMnode;
-  msgCb.sendRspFp = dndSendRsp;
-  msgCb.registerBrokenLinkArgFp = dndRegisterBrokenLinkArg;
+  SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
   pOption->msgCb = msgCb;
 }
 

source/dnode/mgmt/test/vnode/vnode.cpp

@@ -70,46 +70,6 @@ TEST_F(DndTestVnode, 01_Create_Vnode) {
       ASSERT_EQ(pRsp->code, TSDB_CODE_DND_VNODE_ALREADY_DEPLOYED);
     }
   }
-
-  {
-    SCreateVnodeReq createReq = {0};
-    createReq.vgId = 2;
-    createReq.dnodeId = 3;
-    strcpy(createReq.db, "1.d1");
-    createReq.dbUid = 9527;
-    createReq.vgVersion = 1;
-    createReq.cacheBlockSize = 16;
-    createReq.totalBlocks = 10;
-    createReq.daysPerFile = 10;
-    createReq.daysToKeep0 = 3650;
-    createReq.daysToKeep1 = 3650;
-    createReq.daysToKeep2 = 3650;
-    createReq.minRows = 100;
-    createReq.minRows = 4096;
-    createReq.commitTime = 3600;
-    createReq.fsyncPeriod = 3000;
-    createReq.walLevel = 1;
-    createReq.precision = 0;
-    createReq.compression = 2;
-    createReq.replica = 1;
-    createReq.quorum = 1;
-    createReq.update = 0;
-    createReq.cacheLastRow = 0;
-    createReq.selfIndex = 0;
-    for (int r = 0; r < createReq.replica; ++r) {
-      SReplica* pReplica = &createReq.replicas[r];
-      pReplica->id = 1;
-      pReplica->port = 9527;
-    }
-
-    int32_t contLen = tSerializeSCreateVnodeReq(NULL, 0, &createReq);
-    void*   pReq = rpcMallocCont(contLen);
-    tSerializeSCreateVnodeReq(pReq, contLen, &createReq);
-
-    SRpcMsg* pRsp = test.SendReq(TDMT_DND_CREATE_VNODE, pReq, contLen);
-    ASSERT_NE(pRsp, nullptr);
-    ASSERT_EQ(pRsp->code, TSDB_CODE_DND_VNODE_INVALID_OPTION);
-  }
 }
 
 TEST_F(DndTestVnode, 02_Alter_Vnode) {

source/dnode/mgmt/vm/src/vmInt.c

@@ -128,16 +128,12 @@ static void *vmOpenVnodeFunc(void *param) {
              pMgmt->state.openVnodes, pMgmt->state.totalVnodes);
     dndReportStartup(pDnode, "open-vnodes", stepDesc);
 
-    SMsgCb msgCb = {0};
+    SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
     msgCb.pWrapper = pMgmt->pWrapper;
     msgCb.queueFps[QUERY_QUEUE] = vmPutMsgToQueryQueue;
     msgCb.queueFps[FETCH_QUEUE] = vmPutMsgToFetchQueue;
     msgCb.queueFps[APPLY_QUEUE] = vmPutMsgToApplyQueue;
     msgCb.qsizeFp = vmGetQueueSize;
-    msgCb.sendReqFp = dndSendReqToDnode;
-    msgCb.sendMnodeReqFp = dndSendReqToMnode;
-    msgCb.sendRspFp = dndSendRsp;
-    msgCb.registerBrokenLinkArgFp = dndRegisterBrokenLinkArg;
     SVnodeCfg cfg = {.msgCb = msgCb, .pTfs = pMgmt->pTfs, .vgId = pCfg->vgId, .dbId = pCfg->dbUid};
     SVnode   *pImpl = vnodeOpen(pCfg->path, &cfg);
     if (pImpl == NULL) {

source/dnode/mgmt/vm/src/vmMsg.c

@@ -68,12 +68,6 @@ int32_t vmProcessCreateVnodeReq(SVnodesMgmt *pMgmt, SNodeMsg *pMsg) {
   SWrapperCfg wrapperCfg = {0};
   vmGenerateWrapperCfg(pMgmt, &createReq, &wrapperCfg);
 
-  if (createReq.dnodeId != pMgmt->pDnode->dnodeId) {
-    terrno = TSDB_CODE_DND_VNODE_INVALID_OPTION;
-    dDebug("vgId:%d, failed to create vnode since %s", createReq.vgId, terrstr());
-    return -1;
-  }
-
   SVnodeObj *pVnode = vmAcquireVnode(pMgmt, createReq.vgId);
   if (pVnode != NULL) {
     dDebug("vgId:%d, already exist", createReq.vgId);
@@ -82,16 +76,12 @@ int32_t vmProcessCreateVnodeReq(SVnodesMgmt *pMgmt, SNodeMsg *pMsg) {
     return -1;
   }
 
-  SMsgCb msgCb = {0};
+  SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
   msgCb.pWrapper = pMgmt->pWrapper;
   msgCb.queueFps[QUERY_QUEUE] = vmPutMsgToQueryQueue;
   msgCb.queueFps[FETCH_QUEUE] = vmPutMsgToFetchQueue;
   msgCb.queueFps[APPLY_QUEUE] = vmPutMsgToApplyQueue;
   msgCb.qsizeFp = vmGetQueueSize;
-  msgCb.sendReqFp = dndSendReqToDnode;
-  msgCb.sendMnodeReqFp = dndSendReqToMnode;
-  msgCb.sendRspFp = dndSendRsp;
-  msgCb.registerBrokenLinkArgFp = dndRegisterBrokenLinkArg;
 
   vnodeCfg.msgCb = msgCb;
   vnodeCfg.pTfs = pMgmt->pTfs;

source/dnode/mnode/impl/inc/mndCluster.h

@@ -25,6 +25,7 @@ extern "C" {
 int32_t mndInitCluster(SMnode *pMnode);
 void    mndCleanupCluster(SMnode *pMnode);
 int32_t mndGetClusterName(SMnode *pMnode, char *clusterName, int32_t len);
+int64_t mndGetClusterId(SMnode *pMnode);
 
 #ifdef __cplusplus
 }

source/dnode/mnode/impl/inc/mndInt.h

@@ -100,7 +100,6 @@ typedef struct {
 } SGrantInfo;
 
 typedef struct SMnode {
-  int32_t           dnodeId;
   int64_t           clusterId;
   int8_t            replica;
   int8_t            selfIndex;

source/dnode/mnode/impl/src/mndCluster.c

@@ -17,7 +17,7 @@
 #include "mndCluster.h"
 #include "mndShow.h"
 
-#define TSDB_CLUSTER_VER_NUMBE 1
+#define TSDB_CLUSTER_VER_NUMBE    1
 #define TSDB_CLUSTER_RESERVE_SIZE 64
 
 static SSdbRaw *mndClusterActionEncode(SClusterObj *pCluster);
@@ -61,6 +61,23 @@ int32_t mndGetClusterName(SMnode *pMnode, char *clusterName, int32_t len) {
   return 0;
 }
 
+int64_t mndGetClusterId(SMnode *pMnode) {
+  SSdb   *pSdb = pMnode->pSdb;
+  void   *pIter = NULL;
+  int64_t clusterId = -1;
+
+  while (1) {
+    SClusterObj *pCluster = NULL;
+    pIter = sdbFetch(pSdb, SDB_CLUSTER, pIter, (void **)&pCluster);
+    if (pIter == NULL) break;
+
+    clusterId = pCluster->id;
+    sdbRelease(pSdb, pCluster);
+  }
+
+  return clusterId;
+}
+
 static SSdbRaw *mndClusterActionEncode(SClusterObj *pCluster) {
   terrno = TSDB_CODE_OUT_OF_MEMORY;
 

source/dnode/mnode/impl/src/mndProfile.c

@@ -433,12 +433,6 @@ static int32_t mndProcessHeartBeatReq(SNodeMsg *pReq) {
   pHeartbeat->connId = htonl(pHeartbeat->connId);
   pHeartbeat->pid = htonl(pHeartbeat->pid);
 
-  SRpcConnInfo info = {0};
-  if (rpcGetConnInfo(pReq->rpcMsg.handle, &info) != 0) {
-    mError("user:%s, connId:%d failed to process hb since %s", pReq->user, pHeartbeat->connId, terrstr());
-    return -1;
-  }
-
   SConnObj *pConn = mndAcquireConn(pMnode, pHeartbeat->connId);
   if (pConn == NULL) {
     pConn = mndCreateConn(pMnode, &info, pHeartbeat->pid, pHeartbeat->app, 0);

source/dnode/mnode/impl/src/mndQnode.c

@@ -423,7 +423,7 @@ static int32_t mndProcessDropQnodeReq(SNodeMsg *pReq) {
 
 DROP_QNODE_OVER:
   if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
-    mError("qnode:%d, failed to drop since %s", pMnode->dnodeId, terrstr());
+    mError("qnode:%d, failed to drop since %s", dropReq.dnodeId, terrstr());
   }
 
   mndReleaseQnode(pMnode, pObj);

source/dnode/mnode/impl/src/mndSnode.c

@@ -433,7 +433,7 @@ static int32_t mndProcessDropSnodeReq(SNodeMsg *pReq) {
 
 DROP_SNODE_OVER:
   if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
-    mError("snode:%d, failed to drop since %s", pMnode->dnodeId, terrstr());
+    mError("snode:%d, failed to drop since %s", dropReq.dnodeId, terrstr());
   }
 
   mndReleaseSnode(pMnode, pObj);

source/dnode/mnode/impl/src/mnode.c

@@ -187,7 +187,7 @@ static int32_t mndAllocStep(SMnode *pMnode, char *name, MndInitFp initFp, MndCle
   return 0;
 }
 
-static int32_t mndInitSteps(SMnode *pMnode) {
+static int32_t mndInitSteps(SMnode *pMnode, bool deploy) {
   if (mndAllocStep(pMnode, "mnode-sdb", mndInitSdb, mndCleanupSdb) != 0) return -1;
   if (mndAllocStep(pMnode, "mnode-trans", mndInitTrans, mndCleanupTrans) != 0) return -1;
   if (mndAllocStep(pMnode, "mnode-cluster", mndInitCluster, mndCleanupCluster) != 0) return -1;
@@ -210,7 +210,7 @@ static int32_t mndInitSteps(SMnode *pMnode) {
   if (mndAllocStep(pMnode, "mnode-infos", mndInitInfos, mndCleanupInfos) != 0) return -1;
   if (mndAllocStep(pMnode, "mnode-db", mndInitDb, mndCleanupDb) != 0) return -1;
   if (mndAllocStep(pMnode, "mnode-func", mndInitFunc, mndCleanupFunc) != 0) return -1;
-  if (pMnode->clusterId <= 0) {
+  if (deploy) {
     if (mndAllocStep(pMnode, "mnode-sdb-deploy", mndDeploySdb, NULL) != 0) return -1;
   } else {
     if (mndAllocStep(pMnode, "mnode-sdb-read", mndReadSdb, NULL) != 0) return -1;
@@ -263,23 +263,15 @@ static int32_t mndExecSteps(SMnode *pMnode) {
     }
   }
 
+  pMnode->clusterId = mndGetClusterId(pMnode);
   return 0;
 }
 
-static int32_t mndSetOptions(SMnode *pMnode, const SMnodeOpt *pOption) {
-  pMnode->dnodeId = pOption->dnodeId;
-  pMnode->clusterId = pOption->clusterId;
+static void mndSetOptions(SMnode *pMnode, const SMnodeOpt *pOption) {
   pMnode->replica = pOption->replica;
   pMnode->selfIndex = pOption->selfIndex;
   memcpy(&pMnode->replicas, pOption->replicas, sizeof(SReplica) * TSDB_MAX_REPLICA);
   pMnode->msgCb = pOption->msgCb;
-
-  if (pMnode->dnodeId < 0 || pMnode->clusterId < 0) {
-    terrno = TSDB_CODE_MND_INVALID_OPTIONS;
-    return -1;
-  }
-
-  return 0;
 }
 
 SMnode *mndOpen(const char *path, const SMnodeOpt *pOption) {
@@ -294,6 +286,7 @@ SMnode *mndOpen(const char *path, const SMnodeOpt *pOption) {
 
   char timestr[24] = "1970-01-01 00:00:00.00";
   (void)taosParseTime(timestr, &pMnode->checkTime, (int32_t)strlen(timestr), TSDB_TIME_PRECISION_MILLI, 0);
+  mndSetOptions(pMnode, pOption);
 
   pMnode->pSteps = taosArrayInit(24, sizeof(SMnodeStep));
   if (pMnode->pSteps == NULL) {
@@ -312,16 +305,7 @@ SMnode *mndOpen(const char *path, const SMnodeOpt *pOption) {
     return NULL;
   }
 
-  code = mndSetOptions(pMnode, pOption);
-  if (code != 0) {
-    code = terrno;
-    mError("failed to open mnode since %s", terrstr());
-    mndClose(pMnode);
-    terrno = code;
-    return NULL;
-  }
-
-  code = mndInitSteps(pMnode);
+  code = mndInitSteps(pMnode, pOption->deploy);
   if (code != 0) {
     code = terrno;
     mError("failed to open mnode since %s", terrstr());

source/os/src/osProc.c

@@ -23,9 +23,9 @@ int32_t taosNewProc(char **args) {
   int32_t pid = fork();
   if (pid == 0) {
     args[0] = tsProcPath;
-    close(STDIN_FILENO);
+    // close(STDIN_FILENO);
     close(STDOUT_FILENO);
-    close(STDERR_FILENO);
+    // close(STDERR_FILENO);
     return execvp(tsProcPath, args);
   } else {
     return pid;
@@ -33,7 +33,7 @@ int32_t taosNewProc(char **args) {
 }
 
 void taosWaitProc(int32_t pid) {
-  int32_t status = 0;
+  int32_t status = -1;
   waitpid(pid, &status, 0);
 }
 

source/os/src/osShm.c

@@ -17,10 +17,10 @@
 #define _DEFAULT_SOURCE
 #include "os.h"
 
-int32_t taosCreateShm(SShm* pShm, int32_t shmsize) {
+int32_t taosCreateShm(SShm* pShm, int32_t key, int32_t shmsize) {
   pShm->id = -1;
 
-  int32_t shmid = shmget(0X95279527, shmsize, IPC_CREAT | 0600);
+  int32_t shmid = shmget(0X95270000 + key, shmsize, IPC_CREAT | 0600);
   if (shmid < 0) {
     return -1;
   }

source/os/src/osSignal.c

@@ -59,7 +59,7 @@ void taosSetSignal(int32_t signum, FSignalHandler sigfp) {
   struct sigaction act;
   memset(&act, 0, sizeof(act));
 #if 1
-  act.sa_flags = SA_SIGINFO;
+  act.sa_flags = SA_SIGINFO | SA_RESTART;
   act.sa_sigaction = (FLinuxSignalHandler)sigfp;
 #else
   act.sa_handler = sigfp;

source/util/src/tprocess.c

@@ -434,7 +434,9 @@ int32_t taosProcPutToChildQ(SProcObj *pProc, const void *pHead, int16_t headLen,
   return taosProcQueuePush(pProc->pChildQueue, pHead, headLen, pBody, bodyLen, ftype);
 }
 
-int32_t taosProcPutToParentQ(SProcObj *pProc, const void *pHead, int16_t headLen, const void *pBody, int32_t bodyLen,
-                             ProcFuncType ftype) {
-  return taosProcQueuePush(pProc->pParentQueue, pHead, headLen, pBody, bodyLen, ftype);
+void taosProcPutToParentQ(SProcObj *pProc, const void *pHead, int16_t headLen, const void *pBody, int32_t bodyLen,
+                          ProcFuncType ftype) {
+  while (taosProcQueuePush(pProc->pParentQueue, pHead, headLen, pBody, bodyLen, ftype) != 0) {
+    taosMsleep(1);
+  }
 }

tests/script/jenkins/basic.txt

@@ -52,4 +52,10 @@
 ./test.sh -f tsim/stable/values.sim
 ./test.sh -f tsim/stable/vnode3.sim
 
+
+# --- for multi process mode
+./test.sh -f tsim/user/basic1.sim -m
+./test.sh -f tsim/stable/vnode3.sim -m
+./test.sh -f tsim/tmq/basic.sim -m
+
 #======================b1-end===============

tests/script/sh/deploy.sh

@@ -5,18 +5,12 @@ set +e
 
 echo "Executing deploy.sh"
 
-if [ $# != 4 ]; then
-  echo "argument list need input : "
-  echo "  -n nodeName"
-  echo "  -i nodePort"
-  exit 1
-fi
-
 UNAME_BIN=`which uname`
 OS_TYPE=`$UNAME_BIN`
 NODE_NAME=
 NODE=
-while getopts "n:i:" arg
+MULTIPROCESS=0
+while getopts "n:i:m" arg
 do
   case $arg in
     n)
@@ -25,6 +19,9 @@ do
     i)
       NODE=$OPTARG
       ;;
+    m)
+      MULTIPROCESS=1
+      ;;
     ?)
       echo "unkonw argument"
       ;;
@@ -145,5 +142,5 @@ echo "statusInterval         1"                  >> $TAOS_CFG
 echo "asyncLog               0"                  >> $TAOS_CFG
 echo "locale                 en_US.UTF-8"        >> $TAOS_CFG
 echo "telemetryReporting     0"                  >> $TAOS_CFG
-echo "multiProcess           0"                  >> $TAOS_CFG
+echo "multiProcess           ${MULTIPROCESS}"    >> $TAOS_CFG
 echo " "                                         >> $TAOS_CFG  

tests/script/test.sh

@@ -7,7 +7,6 @@
 ##################################################
 
 set +e
-#set -x
 
 FILE_NAME=
 RELEASE=0
@@ -16,7 +15,8 @@ VALGRIND=0
 UNIQUE=0
 UNAME_BIN=`which uname`
 OS_TYPE=`$UNAME_BIN`
-while getopts "f:avu" arg
+MULTIPROCESS=0
+while getopts "f:avum" arg
 do
   case $arg in
     f)
@@ -28,6 +28,9 @@ do
     u)
       UNIQUE=1
       ;;
+    m)
+      MULTIPROCESS=1
+      ;;
     ?)
       echo "unknow argument"
       ;;
@@ -125,8 +128,13 @@ if [ -n "$FILE_NAME" ]; then
     echo valgrind --tool=memcheck --leak-check=full --show-reachable=no  --track-origins=yes --show-leak-kinds=all  -v  --workaround-gcc296-bugs=yes  --log-file=${CODE_DIR}/../script/valgrind.log $PROGRAM -c $CFG_DIR -f $FILE_NAME
     valgrind --tool=memcheck --leak-check=full --show-reachable=no  --track-origins=yes --show-leak-kinds=all  -v  --workaround-gcc296-bugs=yes  --log-file=${CODE_DIR}/../script/valgrind.log $PROGRAM -c $CFG_DIR -f $FILE_NAME
   else
-    echo "ExcuteCmd:" $PROGRAM -c $CFG_DIR -f $FILE_NAME
-    $PROGRAM -c $CFG_DIR -f $FILE_NAME
+    if [[ $MULTIPROCESS -eq 1 ]];then
+      echo "ExcuteCmd(multiprocess):" $PROGRAM -m -c $CFG_DIR -f $FILE_NAME  
+      $PROGRAM -m -c $CFG_DIR -f $FILE_NAME
+    else
+      echo "ExcuteCmd(singleprocess):" $PROGRAM -c $CFG_DIR -f $FILE_NAME  
+      $PROGRAM -c $CFG_DIR -f $FILE_NAME
+    fi
   fi
 else
   echo "ExcuteCmd:" $PROGRAM -c $CFG_DIR -f basicSuite.sim

tests/tsim/inc/simInt.h

@@ -155,6 +155,7 @@ extern int32_t  simScriptSucced;
 extern int32_t  simDebugFlag;
 extern char     simScriptDir[];
 extern bool     abortExecution;
+extern bool     useMultiProcess;
 
 SScript *simParseScript(char *fileName);
 SScript *simProcessCallOver(SScript *script);

tests/tsim/src/simExe.c

@@ -305,25 +305,24 @@ bool simExecuteRunBackCmd(SScript *script, char *option) {
   return true;
 }
 
-void simReplaceShToBat(char *dst) {
-  char *sh = strstr(dst, ".sh");
-  if (sh != NULL) {
+void simReplaceStr(char *buf, char *src, char *dst) {
+  char *begin = strstr(buf, src);
+  if (begin != NULL) {
+    int32_t srcLen = (int32_t)strlen(src);
     int32_t dstLen = (int32_t)strlen(dst);
-    char   *end = dst + dstLen;
-    *(end + 1) = 0;
+    int32_t interval = (dstLen - srcLen);
+    int32_t remainLen = (int32_t)strlen(buf);
+    char   *end = buf + remainLen;
+    *(end + interval) = 0;
 
-    for (char *p = end; p >= sh; p--) {
-      *(p + 1) = *p;
+    for (char *p = end; p >= begin; p--) {
+      *(p + interval) = *p;
     }
 
-    sh[0] = '.';
-    sh[1] = 'b';
-    sh[2] = 'a';
-    sh[3] = 't';
-    sh[4] = ' ';
+    memcpy(begin, dst, dstLen);
   }
 
-  simDebug("system cmd is %s", dst);
+  simInfo("system cmd is %s", buf);
 }
 
 bool simExecuteSystemCmd(SScript *script, char *option) {
@@ -334,9 +333,13 @@ bool simExecuteSystemCmd(SScript *script, char *option) {
   simVisuallizeOption(script, option, buf + strlen(buf));
 #else
   sprintf(buf, "%s%s", simScriptDir, option);
-  simReplaceShToBat(buf);
+  simReplaceStr(buf, ".sh", ".bat");
 #endif
 
+  if (useMultiProcess) {
+    simReplaceStr(buf, "deploy.sh", "deploy.sh -m");
+  }
+
   simLogSql(buf, true);
   int32_t code = system(buf);
   int32_t repeatTimes = 0;

tests/tsim/src/simMain.c

@@ -18,6 +18,7 @@
 
 bool simExecSuccess = false;
 bool abortExecution = false;
+bool useMultiProcess = false;
 
 void simHandleSignal(int32_t signo, void *sigInfo, void *context) {
   simSystemCleanUp();
@@ -32,6 +33,8 @@ int32_t main(int32_t argc, char *argv[]) {
       tstrncpy(configDir, argv[++i], 128);
     } else if (strcmp(argv[i], "-f") == 0 && i < argc - 1) {
       strcpy(scriptFile, argv[++i]);
+    } else if (strcmp(argv[i], "-m") == 0) {
+      useMultiProcess = true;
     } else {
       printf("usage: %s [options] \n", argv[0]);
       printf("       [-c config]: config directory, default is: %s\n", configDir);