TD-2393

src/dnode/inc/dnodeVRead.h

@@ -24,8 +24,10 @@ extern "C" {
 int32_t dnodeInitVRead();
 void    dnodeCleanupVRead();
 void    dnodeDispatchToVReadQueue(SRpcMsg *pMsg);
-void *  dnodeAllocVReadQueue(void *pVnode);
-void    dnodeFreeVReadQueue(void *pRqueue);
+void *  dnodeAllocVQueryQueue(void *pVnode);
+void *  dnodeAllocVFetchQueue(void *pVnode);
+void    dnodeFreeVQueryQueue(void *pQqueue);
+void    dnodeFreeVFetchQueue(void *pFqueue);
 
 #ifdef __cplusplus
 }

src/dnode/src/dnodeVRead.c

@@ -22,20 +22,29 @@
 static void *dnodeProcessReadQueue(void *pWorker);
 
 // module global variable
-static SWorkerPool tsVReadWP;
+static SWorkerPool tsVQueryWP;
+static SWorkerPool tsVFetchWP;
 
 int32_t dnodeInitVRead() {
-  tsVReadWP.name = "vquery";
-  tsVReadWP.workerFp = dnodeProcessReadQueue;
-  tsVReadWP.min = tsNumOfCores;
-  tsVReadWP.max = tsNumOfCores * tsNumOfThreadsPerCore;
-  if (tsVReadWP.max <= tsVReadWP.min * 2) tsVReadWP.max = 2 * tsVReadWP.min;
-
-  return tWorkerInit(&tsVReadWP);
+  tsVQueryWP.name = "vquery";
+  tsVQueryWP.workerFp = dnodeProcessReadQueue;
+  tsVQueryWP.min = tsNumOfCores;
+  tsVQueryWP.max = tsNumOfCores * tsNumOfThreadsPerCore;
+  if (tsVQueryWP.max <= tsVQueryWP.min * 2) tsVQueryWP.max = 2 * tsVQueryWP.min;
+  if (tWorkerInit(&tsVQueryWP) != 0) return -1;
+
+  tsVFetchWP.name = "vfetch";
+  tsVFetchWP.workerFp = dnodeProcessReadQueue;
+  tsVFetchWP.min = 1;
+  tsVFetchWP.max = 1;
+  if (tWorkerInit(&tsVFetchWP) != 0) return -1;
+
+  return 0;
 }
 
 void dnodeCleanupVRead() {
-  tWorkerCleanup(&tsVReadWP);
+  tWorkerCleanup(&tsVFetchWP);
+  tWorkerCleanup(&tsVQueryWP);
 }
 
 void dnodeDispatchToVReadQueue(SRpcMsg *pMsg) {
@@ -68,12 +77,20 @@ void dnodeDispatchToVReadQueue(SRpcMsg *pMsg) {
   rpcFreeCont(pMsg->pCont);
 }
 
-void *dnodeAllocVReadQueue(void *pVnode) {
-  return tWorkerAllocQueue(&tsVReadWP, pVnode);
+void *dnodeAllocVQueryQueue(void *pVnode) {
+  return tWorkerAllocQueue(&tsVQueryWP, pVnode);
+}
+
+void *dnodeAllocVFetchQueue(void *pVnode) {
+  return tWorkerAllocQueue(&tsVFetchWP, pVnode);
+}
+
+void dnodeFreeVQueryQueue(void *pQqueue) {
+  tWorkerFreeQueue(&tsVQueryWP, pQqueue);
 }
 
-void dnodeFreeVReadQueue(void *pRqueue) {
-  tWorkerFreeQueue(&tsVReadWP, pRqueue);
+void dnodeFreeVFetchQueue(void *pFqueue) {
+  tWorkerFreeQueue(&tsVFetchWP, pFqueue);
 }
 
 void dnodeSendRpcVReadRsp(void *pVnode, SVReadMsg *pRead, int32_t code) {

src/inc/dnode.h

@@ -56,8 +56,10 @@ void *dnodeSendCfgTableToRecv(int32_t vgId, int32_t tid);
 void *dnodeAllocVWriteQueue(void *pVnode);
 void  dnodeFreeVWriteQueue(void *pWqueue);
 void  dnodeSendRpcVWriteRsp(void *pVnode, void *pWrite, int32_t code);
-void *dnodeAllocVReadQueue(void *pVnode);
-void  dnodeFreeVReadQueue(void *pRqueue);
+void *dnodeAllocVQueryQueue(void *pVnode);
+void *dnodeAllocVFetchQueue(void *pVnode);
+void  dnodeFreeVQueryQueue(void *pQqueue);
+void  dnodeFreeVFetchQueue(void *pFqueue);
 
 int32_t dnodeAllocateMPeerQueue();
 void    dnodeFreeMPeerQueue();

src/vnode/inc/vnodeCancel.h

-/*
- * 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_CANCEL_H
-#define TDENGINE_VNODE_CANCEL_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-#include "vnode.h"
-#include "vnodeInt.h"
-
-int32_t vnodeInitCWorker();
-void    vnodeCleanupCWorker();
-int32_t vnodeWriteIntoCQueue(SVnodeObj *pVnode, SVReadMsg *pRead);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

src/vnode/inc/vnodeInt.h

@@ -47,8 +47,9 @@ typedef struct {
   int8_t   isCommiting;
   uint64_t version;   // current version
   uint64_t fversion;  // version on saved data file
-  void *   wqueue;
-  void *   rqueue;
+  void *   wqueue;    // write queue
+  void *   qqueue;    // read query queue
+  void *   fqueue;    // read fetch/cancel queue
   void *   wal;
   void *   tsdb;
   int64_t  sync;

src/vnode/src/vnodeCancel.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 _DEFAULT_SOURCE
-#include "os.h"
-#include "taoserror.h"
-#include "taosmsg.h"
-#include "tglobal.h"
-#include "tqueue.h"
-#include "dnode.h"
-#include "tsdb.h"
-#include "vnodeCancel.h"
-
-typedef struct {
-  pthread_t thread;
-  int32_t   workerId;
-} SVCWorker;
-
-typedef struct {
-  int32_t    curNum;
-  int32_t    maxNum;
-  SVCWorker *worker;
-} SVCWorkerPool;
-
-static SVCWorkerPool tsVCWorkerPool;
-static taos_qset     tsVCWorkerQset;
-static taos_queue    tsVCWorkerQueue;
-
-static void *vnodeCWorkerFunc(void *param);
-
-static int32_t vnodeStartCWorker() {
-  tsVCWorkerQueue = taosOpenQueue();
-  if (tsVCWorkerQueue == NULL) return TSDB_CODE_DND_OUT_OF_MEMORY;
-
-  taosAddIntoQset(tsVCWorkerQset, tsVCWorkerQueue, NULL);
-
-  for (int32_t i = tsVCWorkerPool.curNum; i < tsVCWorkerPool.maxNum; ++i) {
-    SVCWorker *pWorker = tsVCWorkerPool.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, vnodeCWorkerFunc, pWorker) != 0) {
-      vError("failed to create thread to process vcworker queue, reason:%s", strerror(errno));
-    }
-
-    pthread_attr_destroy(&thAttr);
-
-    tsVCWorkerPool.curNum = i + 1;
-    vDebug("vcworker:%d is launched, total:%d", pWorker->workerId, tsVCWorkerPool.maxNum);
-  }
-
-  vDebug("vcworker queue:%p is allocated", tsVCWorkerQueue);
-  return TSDB_CODE_SUCCESS;
-}
-
-int32_t vnodeInitCWorker() {
-  tsVCWorkerQset = taosOpenQset();
-
-  tsVCWorkerPool.maxNum = 1;
-  tsVCWorkerPool.curNum = 0;
-  tsVCWorkerPool.worker = calloc(sizeof(SVCWorker), tsVCWorkerPool.maxNum);
-
-  if (tsVCWorkerPool.worker == NULL) return -1;
-  for (int32_t i = 0; i < tsVCWorkerPool.maxNum; ++i) {
-    SVCWorker *pWorker = tsVCWorkerPool.worker + i;
-    pWorker->workerId = i;
-    vDebug("vcworker:%d is created", i);
-  }
-
-  vDebug("vcworker is initialized, num:%d qset:%p", tsVCWorkerPool.maxNum, tsVCWorkerQset);
-
-  return vnodeStartCWorker();
-}
-
-static void vnodeStopCWorker() {
-  vDebug("vcworker queue:%p is freed", tsVCWorkerQueue);
-  taosCloseQueue(tsVCWorkerQueue);
-  tsVCWorkerQueue = NULL;
-}
-
-void vnodeCleanupCWorker() {
-  for (int32_t i = 0; i < tsVCWorkerPool.maxNum; ++i) {
-    SVCWorker *pWorker = tsVCWorkerPool.worker + i;
-    if (pWorker->thread) {
-      taosQsetThreadResume(tsVCWorkerQset);
-    }
-    vDebug("vcworker:%d is closed", i);
-  }
-
-  for (int32_t i = 0; i < tsVCWorkerPool.maxNum; ++i) {
-    SVCWorker *pWorker = tsVCWorkerPool.worker + i;
-    vDebug("vcworker:%d start to join", i);
-    if (pWorker->thread) {
-      pthread_join(pWorker->thread, NULL);
-    }
-    vDebug("vcworker:%d join success", i);
-  }
-
-  vDebug("vcworker is closed, qset:%p", tsVCWorkerQset);
-
-  taosCloseQset(tsVCWorkerQset);
-  tsVCWorkerQset = NULL;
-  tfree(tsVCWorkerPool.worker);
-
-  vnodeStopCWorker();
-}
-
-int32_t vnodeWriteIntoCQueue(SVnodeObj *pVnode, SVReadMsg *pRead) {
-  atomic_add_fetch_32(&pVnode->refCount, 1);
-  pRead->pVnode = pVnode;
-
-  vTrace("vgId:%d, write into vcqueue, refCount:%d queued:%d", pVnode->vgId, pVnode->refCount, pVnode->queuedRMsg);
-  return taosWriteQitem(tsVCWorkerQueue, pRead->qtype, pRead);
-}
-
-static void vnodeFreeFromCQueue(SVnodeObj *pVnode, SVReadMsg *pRead) {
-  vTrace("vgId:%d, free from vcqueue, refCount:%d queued:%d", pVnode->vgId, pVnode->refCount, pVnode->queuedRMsg);
-  taosFreeQitem(pRead);
-  vnodeRelease(pVnode);
-}
-
-static void vnodeSendVCancelRpcRsp(SVnodeObj *pVnode, SVReadMsg *pRead, int32_t code) {
-  SRpcMsg rpcRsp = {
-    .handle  = pRead->rpcHandle,
-    .pCont   = pRead->rspRet.rsp,
-    .contLen = pRead->rspRet.len,
-    .code    = code,
-  };
-
-  rpcSendResponse(&rpcRsp);
-  vnodeFreeFromCQueue(pVnode, pRead);
-}
-
-static void *vnodeCWorkerFunc(void *param) {
-  int32_t    qtype;
-  SVReadMsg *pRead;
-  SVnodeObj *pVnode;
-
-  while (1) {
-    if (taosReadQitemFromQset(tsVCWorkerQset, &qtype, (void **)&pRead, (void **)&pVnode) == 0) {
-      vDebug("qset:%p, vcworker got no message from qset, exiting", tsVCWorkerQset);
-      break;
-    }
-
-    assert(qtype == TAOS_QTYPE_RPC);
-    assert(pVnode == NULL);
-    assert(pRead->pVnode != NULL);
-
-    int32_t code = vnodeProcessRead(pRead->pVnode, pRead);
-    vnodeSendVCancelRpcRsp(pRead->pVnode, pRead, code);
-  }
-
-  return NULL;
-}

src/vnode/src/vnodeMain.c

@@ -28,7 +28,6 @@
 #include "vnodeMgmt.h"
 #include "vnodeWorker.h"
 #include "vnodeMain.h"
-#include "vnodeCancel.h"
 
 static int32_t vnodeProcessTsdbStatus(void *arg, int32_t status, int32_t eno);
 
@@ -213,8 +212,9 @@ int32_t vnodeOpen(int32_t vgId) {
   pVnode->fversion = pVnode->version;
   
   pVnode->wqueue = dnodeAllocVWriteQueue(pVnode);
-  pVnode->rqueue = dnodeAllocVReadQueue(pVnode);
-  if (pVnode->wqueue == NULL || pVnode->rqueue == NULL) {
+  pVnode->qqueue = dnodeAllocVQueryQueue(pVnode);
+  pVnode->fqueue = dnodeAllocVFetchQueue(pVnode);
+  if (pVnode->wqueue == NULL || pVnode->qqueue == NULL || pVnode->fqueue == NULL) {
     vnodeCleanUp(pVnode);
     return terrno;
   }
@@ -374,9 +374,14 @@ void vnodeDestroy(SVnodeObj *pVnode) {
     pVnode->wqueue = NULL;
   }
 
-  if (pVnode->rqueue) {
-    dnodeFreeVReadQueue(pVnode->rqueue);
-    pVnode->rqueue = NULL;
+  if (pVnode->qqueue) {
+    dnodeFreeVQueryQueue(pVnode->qqueue);
+    pVnode->qqueue = NULL;
+  }
+
+  if (pVnode->fqueue) {
+    dnodeFreeVFetchQueue(pVnode->fqueue);
+    pVnode->fqueue = NULL;
   }
 
   tfree(pVnode->rootDir);

src/vnode/src/vnodeRead.c

@@ -14,11 +14,9 @@
  */
 
 #define _DEFAULT_SOURCE
-
 #include "os.h"
 #include "taosmsg.h"
 #include "tqueue.h"
-#include "vnodeCancel.h"
 #include "tglobal.h"
 #include "query.h"
 #include "vnodeStatus.h"
@@ -119,15 +117,16 @@ int32_t vnodeWriteToRQueue(void *vparam, void *pCont, int32_t contLen, int8_t qt
   }
 
   pRead->qtype = qtype;
+  atomic_add_fetch_32(&pVnode->refCount, 1);
+  atomic_add_fetch_32(&pVnode->queuedRMsg, 1);
 
-  if (pRead->code == TSDB_CODE_RPC_NETWORK_UNAVAIL || pRead->msgType == TSDB_MSG_TYPE_CANCEL_QUERY) {
-    pRead->msgType = TSDB_MSG_TYPE_CANCEL_QUERY;
-    return vnodeWriteIntoCQueue(pVnode, pRead);
+    if (pRead->code == TSDB_CODE_RPC_NETWORK_UNAVAIL || pRead->msgType == TSDB_MSG_TYPE_CANCEL_QUERY ||
+      pRead->msgType == TSDB_MSG_TYPE_FETCH) {
+    vTrace("vgId:%d, write into vfetch queue, refCount:%d queued:%d", pVnode->vgId, pVnode->refCount, pVnode->queuedRMsg);
+    return taosWriteQitem(pVnode->fqueue, qtype, pRead);
   } else {
-    atomic_add_fetch_32(&pVnode->refCount, 1);
-    atomic_add_fetch_32(&pVnode->queuedRMsg, 1);
-    vTrace("vgId:%d, write into vrqueue, refCount:%d queued:%d", pVnode->vgId, pVnode->refCount, pVnode->queuedRMsg);
-    return taosWriteQitem(pVnode->rqueue, qtype, pRead);
+    vTrace("vgId:%d, write into vquery queue, refCount:%d queued:%d", pVnode->vgId, pVnode->refCount, pVnode->queuedRMsg);
+    return taosWriteQitem(pVnode->qqueue, qtype, pRead);
   }
 }