TD-2324

src/dnode/src/dnodeMgmt.c

@@ -265,14 +265,12 @@ static int32_t dnodeGetVnodeList(int32_t vnodeList[], int32_t *numOfVnodes) {
 
 static void *dnodeOpenVnode(void *param) {
   SOpenVnodeThread *pThread = param;
-  char vnodeDir[TSDB_FILENAME_LEN * 3];
-
+  
   dDebug("thread:%d, start to open %d vnodes", pThread->threadIndex, pThread->vnodeNum);
 
   for (int32_t v = 0; v < pThread->vnodeNum; ++v) {
     int32_t vgId = pThread->vnodeList[v];
-    snprintf(vnodeDir, TSDB_FILENAME_LEN * 3, "%s/vnode%d", tsVnodeDir, vgId);
-    if (vnodeOpen(vgId, vnodeDir) < 0) {
+    if (vnodeOpen(vgId) < 0) {
       dError("vgId:%d, failed to open vnode by thread:%d", vgId, pThread->threadIndex);
       pThread->failed++;
     } else {

src/inc/vnode.h

@@ -57,7 +57,7 @@ extern char *vnodeStatus[];
 // vnodeMain
 int32_t vnodeCreate(SCreateVnodeMsg *pVnodeCfg);
 int32_t vnodeDrop(int32_t vgId);
-int32_t vnodeOpen(int32_t vgId, char *rootDir);
+int32_t vnodeOpen(int32_t vgId);
 int32_t vnodeAlter(void *pVnode, SCreateVnodeMsg *pVnodeCfg);
 int32_t vnodeClose(int32_t vgId);
 

src/util/src/tqueue.c

@@ -358,8 +358,8 @@ int taosReadQitemFromQset(taos_qset param, int *type, void **pitem, void **phand
     if (queue->head) {
         pNode = queue->head;
         *pitem = pNode->item;
-        *type = pNode->type;
-        *phandle = queue->ahandle;
+        if (type) *type = pNode->type;
+        if (phandle) *phandle = queue->ahandle;
         queue->head = pNode->next;
         if (queue->head == NULL) 
           queue->tail = NULL;

src/vnode/inc/vnodeMain.h

@@ -23,7 +23,7 @@ extern "C" {
 
 int32_t vnodeCreate(SCreateVnodeMsg *pVnodeCfg);
 int32_t vnodeDrop(int32_t vgId);
-int32_t vnodeOpen(int32_t vgId, char *rootDir);
+int32_t vnodeOpen(int32_t vgId);
 int32_t vnodeAlter(void *pVnode, SCreateVnodeMsg *pVnodeCfg);
 int32_t vnodeClose(int32_t vgId);
 

src/vnode/inc/vnodeWorker.h

@@ -0,0 +1,33 @@
+/*
+ * 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/>.
+ */
+
+#ifndef TDENGINE_VNODE_WORKER_H
+#define TDENGINE_VNODE_WORKER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include "vnodeInt.h"
+
+int32_t vnodeInitMWorker();
+void    vnodeCleanupMWorker();
+int32_t vnodeOpenInMWorker(int32_t vgId, void *rpcHandle);
+int32_t vnodeCleanupInMWorker(int32_t vgId, void *rpcHandle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/vnode/src/vnodeMain.c

@@ -84,7 +84,7 @@ int32_t vnodeCreate(SCreateVnodeMsg *pVnodeCfg) {
 
   vInfo("vgId:%d, vnode dir is created, walLevel:%d fsyncPeriod:%d", pVnodeCfg->cfg.vgId, pVnodeCfg->cfg.walLevel,
         pVnodeCfg->cfg.fsyncPeriod);
-  code = vnodeOpen(pVnodeCfg->cfg.vgId, rootDir);
+  code = vnodeOpen(pVnodeCfg->cfg.vgId);
 
   return code;
 }
@@ -158,18 +158,20 @@ int32_t vnodeAlter(void *vparam, SCreateVnodeMsg *pVnodeCfg) {
   return code;
 }
 
-int32_t vnodeOpen(int32_t vnode, char *rootDir) {
-  char temp[TSDB_FILENAME_LEN];
+int32_t vnodeOpen(int32_t vgId) {
+  char temp[TSDB_FILENAME_LEN * 3];
+  char rootDir[TSDB_FILENAME_LEN * 2];
+  snprintf(rootDir, TSDB_FILENAME_LEN * 2, "%s/vnode%d", tsVnodeDir, vgId);
 
   SVnodeObj *pVnode = calloc(sizeof(SVnodeObj), 1);
   if (pVnode == NULL) {
-    vError("vgId:%d, failed to open vnode since no enough memory", vnode);
+    vError("vgId:%d, failed to open vnode since no enough memory", vgId);
     return TAOS_SYSTEM_ERROR(errno);
   }
 
   atomic_add_fetch_32(&pVnode->refCount, 1);
 
-  pVnode->vgId     = vnode;
+  pVnode->vgId     = vgId;
   pVnode->fversion = 0;
   pVnode->version  = 0;  
   pVnode->tsdbCfg.tsdbId = pVnode->vgId;
@@ -206,7 +208,7 @@ int32_t vnodeOpen(int32_t vnode, char *rootDir) {
   sprintf(cqCfg.user, "_root");
   strcpy(cqCfg.pass, tsInternalPass);
   strcpy(cqCfg.db, pVnode->db);
-  cqCfg.vgId = vnode;
+  cqCfg.vgId = vgId;
   cqCfg.cqWrite = vnodeWriteToCache;
   pVnode->cq = cqOpen(pVnode, &cqCfg);
   if (pVnode->cq == NULL) {
@@ -220,7 +222,7 @@ int32_t vnodeOpen(int32_t vnode, char *rootDir) {
   appH.cqH = pVnode->cq;
   appH.cqCreateFunc = cqCreate;
   appH.cqDropFunc = cqDrop;
-  sprintf(temp, "vnode/vnode%d/tsdb", vnode);
+  sprintf(temp, "vnode/vnode%d/tsdb", vgId);
 
   terrno = 0;
   pVnode->tsdb = tsdbOpenRepo(temp, &appH);
@@ -280,7 +282,7 @@ int32_t vnodeOpen(int32_t vnode, char *rootDir) {
   syncInfo.vgId = pVnode->vgId;
   syncInfo.version = pVnode->version;
   syncInfo.syncCfg = pVnode->syncCfg;
-  sprintf(syncInfo.path, "%s", rootDir);
+  tstrncpy(syncInfo.path, rootDir, TSDB_FILENAME_LEN);
   syncInfo.getWalInfo = vnodeGetWalInfo;
   syncInfo.getFileInfo = vnodeGetFileInfo;
   syncInfo.writeToCache = vnodeWriteToCache;

src/vnode/src/vnodeWorker.c

@@ -0,0 +1,205 @@
+/*
+ * 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 "taoserror.h"
+#include "taosmsg.h"
+#include "tutil.h"
+#include "tqueue.h"
+#include "tglobal.h"
+#include "vnodeWorker.h"
+
+typedef enum {
+  VNODE_WORKER_ACTION_CREATE,
+  VNODE_WORKER_ACTION_DELETE,
+  VNODE_WORKER_ACTION_ALTER
+} EVMWorkerAction;
+
+typedef struct {
+  int32_t vgId;
+  int32_t code;
+  void *  rpcHandle;
+  SVnodeObj *pVnode;
+  EVMWorkerAction action;
+} SVMWorkerMsg;
+
+typedef struct {
+  pthread_t thread;
+  int32_t   workerId;
+} SVMWorker;
+
+typedef struct {
+  int32_t    curNum;
+  int32_t    maxNum;
+  SVMWorker *worker;
+} SVMWorkerPool;
+
+static SVMWorkerPool tsVMWorkerPool;
+static taos_qset     tsVMWorkerQset;
+static taos_queue    tsVMWorkerQueue;
+
+static void *vnodeMWorkerFunc(void *param);
+
+static int32_t vnodeStartMWorker() {
+  tsVMWorkerQueue = taosOpenQueue();
+  if (tsVMWorkerQueue == NULL) return TSDB_CODE_DND_OUT_OF_MEMORY;
+
+  taosAddIntoQset(tsVMWorkerQset, tsVMWorkerQueue, NULL);
+
+  for (int32_t i = tsVMWorkerPool.curNum; i < tsVMWorkerPool.maxNum; ++i) {
+    SVMWorker *pWorker = tsVMWorkerPool.worker + i;
+    pWorker->workerId = i;
+
+    pthread_attr_t thAttr;
+    pthread_attr_init(&thAttr);
+    pthread_attr_setdetachstate(&thAttr, PTHREAD_CREATE_JOINABLE);
+
+    if (pthread_create(&pWorker->thread, &thAttr, vnodeMWorkerFunc, pWorker) != 0) {
+      vError("failed to create thread to process vmworker queue, reason:%s", strerror(errno));
+    }
+
+    pthread_attr_destroy(&thAttr);
+
+    tsVMWorkerPool.curNum = i + 1;
+    vDebug("vmworker:%d is launched, total:%d", pWorker->workerId, tsVMWorkerPool.maxNum);
+  }
+
+  vDebug("vmworker queue:%p is allocated", tsVMWorkerQueue);
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t vnodeInitMWorker() {
+  tsVMWorkerQset = taosOpenQset();
+
+  tsVMWorkerPool.maxNum = 1;
+  tsVMWorkerPool.curNum = 0;
+  tsVMWorkerPool.worker = calloc(sizeof(SVMWorker), tsVMWorkerPool.maxNum);
+
+  if (tsVMWorkerPool.worker == NULL) return -1;
+  for (int32_t i = 0; i < tsVMWorkerPool.maxNum; ++i) {
+    SVMWorker *pWorker = tsVMWorkerPool.worker + i;
+    pWorker->workerId = i;
+    vDebug("vmworker:%d is created", i);
+  }
+
+  vDebug("vmworker is initialized, num:%d qset:%p", tsVMWorkerPool.maxNum, tsVMWorkerQset);
+
+  return vnodeStartMWorker();
+}
+
+static void vnodeStopMWorker() {
+  vDebug("vmworker queue:%p is freed", tsVMWorkerQueue);
+  taosCloseQueue(tsVMWorkerQueue);
+  tsVMWorkerQueue = NULL;
+}
+
+void vnodeCleanupMWorker() {
+  for (int32_t i = 0; i < tsVMWorkerPool.maxNum; ++i) {
+    SVMWorker *pWorker = tsVMWorkerPool.worker + i;
+    if (pWorker->thread) {
+      taosQsetThreadResume(tsVMWorkerQset);
+    }
+    vDebug("vmworker:%d is closed", i);
+  }
+
+  for (int32_t i = 0; i < tsVMWorkerPool.maxNum; ++i) {
+    SVMWorker *pWorker = tsVMWorkerPool.worker + i;
+    vDebug("vmworker:%d start to join", i);
+    if (pWorker->thread) {
+      pthread_join(pWorker->thread, NULL);
+    }
+    vDebug("vmworker:%d join success", i);
+  }
+
+  vDebug("vmworker is closed, qset:%p", tsVMWorkerQset);
+
+  taosCloseQset(tsVMWorkerQset);
+  tsVMWorkerQset = NULL;
+  tfree(tsVMWorkerPool.worker);
+
+  vnodeStopMWorker();
+}
+
+static int32_t vnodeWriteIntoMWorker(int32_t vgId, EVMWorkerAction action,void *rpcHandle) {
+  SVMWorkerMsg *pMsg = taosAllocateQitem(sizeof(SVMWorkerMsg));
+  if (pMsg == NULL) return TSDB_CODE_VND_OUT_OF_MEMORY;
+
+  SVnodeObj *pVnode = vnodeAcquire(vgId);
+  if (pVnode == NULL) return TSDB_CODE_VND_INVALID_VGROUP_ID;
+
+  pMsg->vgId = vgId;
+  pMsg->pVnode = pVnode;
+  pMsg->rpcHandle = rpcHandle;
+  pMsg->action = action;
+  return taosWriteQitem(tsVMWorkerQueue, TAOS_QTYPE_RPC, pMsg);
+}
+
+int32_t vnodeOpenInMWorker(int32_t vgId, void *rpcHandle) {
+  vTrace("vgId:%d, will open in vmworker", vgId);
+  return vnodeWriteIntoMWorker(vgId, VNODE_WORKER_ACTION_CREATE, rpcHandle);
+}
+
+int32_t vnodeCleanupInMWorker(int32_t vgId, void *rpcHandle) {
+  vTrace("vgId:%d, will cleanup in vmworker", vgId);
+  return vnodeWriteIntoMWorker(vgId, VNODE_WORKER_ACTION_DELETE, rpcHandle);
+}
+
+static void vnodeFreeMWorkerMsg(SVMWorkerMsg *pMsg) {
+  vTrace("vgId:%d, disposed in vmworker", pMsg->vgId);
+  vnodeRelease(pMsg->pVnode);
+  taosFreeQitem(pMsg);
+}
+
+static void vnodeSendVMWorkerRpcRsp(SVMWorkerMsg *pMsg) {
+  SRpcMsg rpcRsp = {
+    .handle = pMsg->rpcHandle,
+    .code = pMsg->code,
+  };
+
+  rpcSendResponse(&rpcRsp);
+  vnodeFreeMWorkerMsg(pMsg);
+}
+
+static void vnodeProcessMWorkerMsg(SVMWorkerMsg *pMsg) {
+  pMsg->code = 0;
+
+  switch (pMsg->action) {
+    case VNODE_WORKER_ACTION_CREATE:
+      pMsg->code = vnodeOpen(pMsg->vgId);
+      break;
+    case VNODE_WORKER_ACTION_DELETE:
+      pMsg->code = vnodeDrop(pMsg->vgId);
+      break;
+    default:
+      break;
+  }
+}
+
+static void *vnodeMWorkerFunc(void *param) {
+  while (1) {
+    SVMWorkerMsg *pMsg = NULL;
+    if (taosReadQitemFromQset(tsVMWorkerQset, NULL, (void **)&pMsg, NULL) == 0) {
+      vDebug("qset:%p, vmworker got no message from qset, exiting", tsVMWorkerQset);
+      break;
+    }
+
+    vTrace("vgId:%d, action:%d will be processed in vmworker queue", pMsg->vgId, pMsg->action);
+    vnodeProcessMWorkerMsg(pMsg);
+    vnodeSendVMWorkerRpcRsp(pMsg);
+  }
+
+  return NULL;
+}