refactor: add some logs.

source/dnode/vnode/inc/vnode.h

@@ -264,7 +264,7 @@ int32_t tqReaderSetTbUidList(STqReader *pReader, const SArray *tbUidList);
 int32_t tqReaderAddTbUidList(STqReader *pReader, const SArray *tbUidList);
 int32_t tqReaderRemoveTbUidList(STqReader *pReader, const SArray *tbUidList);
 
-int32_t tqSeekVer(STqReader *pReader, int64_t ver);
+int32_t tqSeekVer(STqReader *pReader, int64_t ver, const char* id);
 int32_t tqNextBlock(STqReader *pReader, SFetchRet *ret);
 
 int32_t tqReaderSetSubmitReq2(STqReader *pReader, void *msgStr, int32_t msgLen, int64_t ver);

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

@@ -290,14 +290,14 @@ void tqCloseReader(STqReader* pReader) {
   taosMemoryFree(pReader);
 }
 
-int32_t tqSeekVer(STqReader* pReader, int64_t ver) {
+int32_t tqSeekVer(STqReader* pReader, int64_t ver, const char* id) {
   // todo set the correct vgId
-  tqDebug("tmq poll: vgId:%d wal seek to version:%"PRId64, 0, ver);
+  tqDebug("tmq poll: wal seek to version:%"PRId64" %s", ver, id);
   if (walReadSeekVer(pReader->pWalReader, ver) < 0) {
-    tqError("tmq poll: wal reader failed to seek to ver:%"PRId64, ver);
+    tqError("tmq poll: wal reader failed to seek to ver:%"PRId64" code:%s, %s", ver, tstrerror(terrno), id);
     return -1;
   } else {
-    tqDebug("tmq poll: wal reader seek to ver:%"PRId64, ver);
+    tqError("tmq poll: wal reader seek to ver:%"PRId64" %s", ver, id);
     return 0;
   }
 }

source/libs/executor/src/executor.c

@@ -1068,7 +1068,7 @@ int32_t qStreamPrepareScan(qTaskInfo_t tinfo, STqOffsetVal* pOffset, int8_t subT
       tsdbReaderClose(pTSInfo->base.dataReader);
       pTSInfo->base.dataReader = NULL;
       // let's seek to the next version in wal file
-      if (tqSeekVer(pInfo->tqReader, pOffset->version + 1) < 0) {
+      if (tqSeekVer(pInfo->tqReader, pOffset->version + 1, pTaskInfo->id.str) < 0) {
         return -1;
       }
     } else if (pOffset->type == TMQ_OFFSET__SNAPSHOT_DATA) {

source/libs/executor/src/scanoperator.c

@@ -1618,7 +1618,7 @@ static SSDataBlock* doQueueScan(SOperatorInfo* pOperator) {
         pTSInfo->base.dataReader = NULL;
         tqOffsetResetToLog(&pTaskInfo->streamInfo.prepareStatus, pTaskInfo->streamInfo.snapshotVer);
         qDebug("queue scan tsdb over, switch to wal ver %" PRId64 "", pTaskInfo->streamInfo.snapshotVer + 1);
-        if (tqSeekVer(pInfo->tqReader, pTaskInfo->streamInfo.snapshotVer + 1) < 0) {
+        if (tqSeekVer(pInfo->tqReader, pTaskInfo->streamInfo.snapshotVer + 1, pTaskInfo->id.str) < 0) {
           tqOffsetResetToLog(&pTaskInfo->streamInfo.lastStatus, pTaskInfo->streamInfo.snapshotVer);
           return NULL;
         }