put next level info into task

example/src/tstream.c

@@ -63,7 +63,7 @@ int32_t init_env() {
 }
 
 int32_t create_stream() {
-  printf("create topic\n");
+  printf("create stream\n");
   TAOS_RES* pRes;
   TAOS*     pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
   if (pConn == NULL) {
@@ -77,7 +77,7 @@ int32_t create_stream() {
   }
   taos_free_result(pRes);
 
-  const char* sql = "select ts,k from tu1";
+  const char* sql = "select ts,sum(k) from tu1";
   pRes = tmq_create_stream(pConn, "stream1", "out1", sql);
   if (taos_errno(pRes) != 0) {
     printf("failed to create stream out1, reason:%s\n", taos_errstr(pRes));

include/common/tmsg.h

@@ -23,8 +23,8 @@
 #include "tencode.h"
 #include "thash.h"
 #include "tlist.h"
-#include "trow.h"
 #include "tname.h"
+#include "trow.h"
 #include "tuuid.h"
 
 #ifdef __cplusplus
@@ -476,7 +476,6 @@ int32_t tSerializeSQueryTableRsp(void *buf, int32_t bufLen, SQueryTableRsp *pRsp
 
 int32_t tDeserializeSQueryTableRsp(void* buf, int32_t bufLen, SQueryTableRsp* pRsp);
 
-
 typedef struct {
   char    db[TSDB_DB_FNAME_LEN];
   int32_t numOfVgroups;
@@ -1411,7 +1410,6 @@ typedef struct {
 int32_t tSerializeSVCreateTbBatchRsp(void* buf, int32_t bufLen, SVCreateTbBatchRsp* pRsp);
 int32_t tDeserializeSVCreateTbBatchRsp(void* buf, int32_t bufLen, SVCreateTbBatchRsp* pRsp);
 
-
 typedef struct {
   int64_t  ver;
   char*    name;
@@ -2292,6 +2290,11 @@ enum {
   STREAM_TASK_STATUS__STOP,
 };
 
+enum {
+  STREAM_NEXT_OP_DST__VND = 1,
+  STREAM_NEXT_OP_DST__SND,
+};
+
 typedef struct {
   void* inputHandle;
   void* executor;
@@ -2306,6 +2309,7 @@ typedef struct {
   int8_t  pipeSink;
   int8_t  numOfRunners;
   int8_t  parallelizable;
+  int8_t  nextOpDst;  // vnode or snode
   SEpSet  NextOpEp;
   char*   qmsg;
   // not applied to encoder and decoder

source/common/src/tglobal.c

@@ -132,6 +132,9 @@ bool tsdbForceKeepFile = false;
 int32_t  tsDiskCfgNum = 0;
 SDiskCfg tsDiskCfg[TFS_MAX_DISKS] = {0};
 
+// stream scheduler
+bool tsStreamSchedV = true;
+
 /*
  * minimum scale for whole system, millisecond by default
  * for TSDB_TIME_PRECISION_MILLI: 86400000L

source/common/src/tmsg.c

@@ -2695,7 +2695,6 @@ int32_t tDeserializeSVCreateTbBatchRsp(void *buf, int32_t bufLen, SVCreateTbBatc
   return 0;
 }
 
-
 int32_t tSerializeSVCreateTSmaReq(void **buf, SVCreateTSmaReq *pReq) {
   int32_t tlen = 0;
 
@@ -2797,7 +2796,10 @@ int32_t tEncodeSStreamTask(SCoder *pEncoder, const SStreamTask *pTask) {
   if (tEncodeI32(pEncoder, pTask->taskId) < 0) return -1;
   if (tEncodeI32(pEncoder, pTask->level) < 0) return -1;
   if (tEncodeI8(pEncoder, pTask->status) < 0) return -1;
+  if (tEncodeI8(pEncoder, pTask->pipeSource) < 0) return -1;
   if (tEncodeI8(pEncoder, pTask->pipeSink) < 0) return -1;
+  if (tEncodeI8(pEncoder, pTask->parallelizable) < 0) return -1;
+  if (tEncodeI8(pEncoder, pTask->nextOpDst) < 0) return -1;
   // if (tEncodeI8(pEncoder, pTask->numOfRunners) < 0) return -1;
   if (tEncodeSEpSet(pEncoder, &pTask->NextOpEp) < 0) return -1;
   if (tEncodeCStr(pEncoder, pTask->qmsg) < 0) return -1;
@@ -2811,7 +2813,10 @@ int32_t tDecodeSStreamTask(SCoder *pDecoder, SStreamTask *pTask) {
   if (tDecodeI32(pDecoder, &pTask->taskId) < 0) return -1;
   if (tDecodeI32(pDecoder, &pTask->level) < 0) return -1;
   if (tDecodeI8(pDecoder, &pTask->status) < 0) return -1;
+  if (tDecodeI8(pDecoder, &pTask->pipeSource) < 0) return -1;
   if (tDecodeI8(pDecoder, &pTask->pipeSink) < 0) return -1;
+  if (tDecodeI8(pDecoder, &pTask->parallelizable) < 0) return -1;
+  if (tDecodeI8(pDecoder, &pTask->nextOpDst) < 0) return -1;
   // if (tDecodeI8(pDecoder, &pTask->numOfRunners) < 0) return -1;
   if (tDecodeSEpSet(pDecoder, &pTask->NextOpEp) < 0) return -1;
   if (tDecodeCStrAlloc(pDecoder, &pTask->qmsg) < 0) return -1;

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

@@ -32,6 +32,8 @@
 #include "tname.h"
 #include "tuuid.h"
 
+extern bool tsStreamSchedV;
+
 int32_t mndPersistTaskDeployReq(STrans* pTrans, SStreamTask* pTask, const SEpSet* pEpSet, tmsg_t type) {
   SCoder encoder;
   tCoderInit(&encoder, TD_LITTLE_ENDIAN, NULL, 0, TD_ENCODER);
@@ -106,6 +108,7 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
 
   int32_t totLevel = LIST_LENGTH(pPlan->pSubplans);
   pStream->tasks = taosArrayInit(totLevel, sizeof(SArray));
+  int32_t lastUsedVgId = 0;
 
   for (int32_t level = 0; level < totLevel; level++) {
     SArray*        taskOneLevel = taosArrayInit(0, sizeof(SStreamTask));
@@ -125,11 +128,14 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
           continue;
         }
 
+        lastUsedVgId = pVgroup->vgId;
         pStream->vgNum++;
         // send to vnode
 
         SStreamTask* pTask = streamTaskNew(pStream->uid, level);
+        pTask->pipeSource = 1;
         pTask->pipeSink = level == totLevel - 1 ? 1 : 0;
+        pTask->parallelizable = 1;
         // TODO: set to
         if (mndAssignTaskToVg(pMnode, pTrans, pTask, plan, pVgroup) < 0) {
           sdbRelease(pSdb, pVgroup);
@@ -140,7 +146,21 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
       }
     } else {
       SStreamTask* pTask = streamTaskNew(pStream->uid, level);
+      pTask->pipeSource = 0;
       pTask->pipeSink = level == totLevel - 1 ? 1 : 0;
+      pTask->parallelizable = plan->type == SUBPLAN_TYPE_SCAN;
+      pTask->nextOpDst = STREAM_NEXT_OP_DST__VND;
+
+      if (tsStreamSchedV) {
+        ASSERT(lastUsedVgId != 0);
+        SVgObj* pVg = mndAcquireVgroup(pMnode, lastUsedVgId);
+        if (mndAssignTaskToVg(pMnode, pTrans, pTask, plan, pVg) < 0) {
+          sdbRelease(pSdb, pVg);
+          qDestroyQueryPlan(pPlan);
+          return -1;
+        }
+        sdbRelease(pSdb, pVg);
+      } else {
         SSnodeObj* pSnode = mndSchedFetchSnode(pMnode);
         if (pSnode != NULL) {
           if (mndAssignTaskToSnode(pMnode, pTrans, pTask, plan, pSnode) < 0) {
@@ -153,6 +173,8 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
           // TODO: assign to one vg
           ASSERT(0);
         }
+      }
+
       taosArrayPush(taskOneLevel, pTask);
     }
     taosArrayPush(pStream->tasks, taskOneLevel);

source/dnode/vnode/src/inc/tqInt.h

@@ -167,6 +167,7 @@ struct STQ {
   STqMetaStore* tqMeta;
   STqPushMgr*   tqPushMgr;
   SHashObj*     pStreamTasks;
+  SVnode*       pVnode;
   SWal*         pWal;
   SMeta*        pVnodeMeta;
 };

source/dnode/vnode/src/inc/vnd.h

@@ -177,7 +177,8 @@ int  tqInit();
 void tqCleanUp();
 
 // open in each vnode
-STQ* tqOpen(const char* path, SWal* pWal, SMeta* pMeta, STqCfg* tqConfig, SMemAllocatorFactory* allocFac);
+STQ* tqOpen(const char* path, SVnode* pVnode, SWal* pWal, SMeta* pMeta, STqCfg* tqConfig,
+            SMemAllocatorFactory* allocFac);
 void tqClose(STQ*);
 
 // required by vnode
@@ -188,7 +189,6 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg);
 int32_t tqProcessSetConnReq(STQ* pTq, char* msg);
 int32_t tqProcessRebReq(STQ* pTq, char* msg);
 int32_t tqProcessTaskExec(STQ* pTq, SRpcMsg* msg);
-
 int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen);
 
 #ifdef __cplusplus

source/dnode/vnode/src/tq/tq.c

@@ -21,7 +21,8 @@ int32_t tqInit() { return tqPushMgrInit(); }
 
 void tqCleanUp() { tqPushMgrCleanUp(); }
 
-STQ* tqOpen(const char* path, SWal* pWal, SMeta* pVnodeMeta, STqCfg* tqConfig, SMemAllocatorFactory* allocFac) {
+STQ* tqOpen(const char* path, SVnode* pVnode, SWal* pWal, SMeta* pVnodeMeta, STqCfg* tqConfig,
+            SMemAllocatorFactory* allocFac) {
   STQ* pTq = malloc(sizeof(STQ));
   if (pTq == NULL) {
     terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
@@ -29,6 +30,7 @@ STQ* tqOpen(const char* path, SWal* pWal, SMeta* pVnodeMeta, STqCfg* tqConfig, S
   }
   pTq->path = strdup(path);
   pTq->tqConfig = tqConfig;
+  pTq->pVnode = pVnode;
   pTq->pWal = pWal;
   pTq->pVnodeMeta = pVnodeMeta;
 #if 0
@@ -104,8 +106,21 @@ int tqPushMsg(STQ* pTq, void* msg, tmsg_t msgType, int64_t version) {
       }
       void* abuf = POINTER_SHIFT(buf, sizeof(SStreamExecMsgHead));
       tEncodeDataBlocks(abuf, pRes);
-      // serialize
+      tmsg_t type;
-      // to next level
+
+      if (pTask->nextOpDst == STREAM_NEXT_OP_DST__VND) {
+        type = TDMT_VND_TASK_EXEC;
+      } else {
+        type = TDMT_SND_TASK_EXEC;
+      }
+
+      SRpcMsg msg = {
+          .pCont = buf,
+          .contLen = tlen,
+          .code = 0,
+          .msgType = type,
+      };
+      /*vnodeSendReq(pTq->pVnode, &pTask->NextOpEp, &msg);*/
     }
   }
 

source/dnode/vnode/src/vnd/vnodeMain.c

@@ -115,7 +115,8 @@ static int vnodeOpenImpl(SVnode *pVnode) {
 
   // Open tsdb
   sprintf(dir, "%s/tsdb", pVnode->path);
-  pVnode->pTsdb = tsdbOpen(dir, pVnode->vgId, &(pVnode->config.tsdbCfg), vBufPoolGetMAF(pVnode), pVnode->pMeta, pVnode->pTfs);
+  pVnode->pTsdb =
+      tsdbOpen(dir, pVnode->vgId, &(pVnode->config.tsdbCfg), vBufPoolGetMAF(pVnode), pVnode->pMeta, pVnode->pTfs);
   if (pVnode->pTsdb == NULL) {
     // TODO: handle error
     return -1;
@@ -131,7 +132,7 @@ static int vnodeOpenImpl(SVnode *pVnode) {
 
   // Open TQ
   sprintf(dir, "%s/tq", pVnode->path);
-  pVnode->pTq = tqOpen(dir, pVnode->pWal, pVnode->pMeta, &(pVnode->config.tqCfg), vBufPoolGetMAF(pVnode));
+  pVnode->pTq = tqOpen(dir, pVnode, pVnode->pWal, pVnode->pMeta, &(pVnode->config.tqCfg), vBufPoolGetMAF(pVnode));
   if (pVnode->pTq == NULL) {
     // TODO: handle error
     return -1;