diff --git a/src/inc/tsdb.h b/src/inc/tsdb.h
index b2219a53a7e8ad8e2f45d8aefacd13109e3d41de..089e30ac3728761c68fe155f960c8650a32c2f7a 100644
--- a/src/inc/tsdb.h
+++ b/src/inc/tsdb.h
@@ -193,7 +193,6 @@ typedef struct {
   SList *      bufBlockList;
   int64_t      pointsAdd;   // TODO
   int64_t      storageAdd;  // TODO
-  int64_t      commitedMs;  // commited ms time , zero is no commit.
 } SMemTable;
 
 typedef struct {
diff --git a/src/query/src/queryMain.c b/src/query/src/queryMain.c
index a409d955add34d54f025fd98e63a5f4faf670770..7eeaac421aed111d371191d6717a5c8d41087f8f 100644
--- a/src/query/src/queryMain.c
+++ b/src/query/src/queryMain.c
@@ -249,7 +249,7 @@ int waitMoment(SQInfo* pQInfo){
         taosMsleep(1000);
         used_ms += 1000;
         if(isQueryKilled(pQInfo)){
-          printf(" check query is canceled, sleep break... \n");
+          printf(" check query is canceled, sleep break... %s\n", pQInfo->sql);
           break;
         }
       }
@@ -626,7 +626,7 @@ int32_t qKillQueryByQId(void* pMgmt, int64_t qId, int32_t waitMs, int32_t waitCo
   if (pQInfo == NULL || !isValidQInfo(pQInfo)) {
     return TSDB_CODE_QRY_INVALID_QHANDLE;
   }
-  qWarn("QId:0x%"PRIx64" query killed becase no memory commit.", pQInfo->qId);
+  qWarn("QId:0x%"PRIx64" be killed(no memory commit).", pQInfo->qId);
   setQueryKilled(pQInfo);
 
   // wait query stop
@@ -647,20 +647,19 @@ int32_t qKillQueryByQId(void* pMgmt, int64_t qId, int32_t waitMs, int32_t waitCo
 typedef struct {
   int64_t qId;
   int64_t startExecTs;
-  int64_t commitedMs;
 } SLongQuery;
 
 // callbark for sort compare 
 static int compareLongQuery(const void* p1, const void* p2) {
   // sort desc 
-  SLongQuery* plq1 = (SLongQuery*)p1;
-  SLongQuery* plq2 = (SLongQuery*)p2;
+  SLongQuery* plq1 = *(SLongQuery**)p1;
+  SLongQuery* plq2 = *(SLongQuery**)p2;
   if(plq1->startExecTs == plq2->startExecTs) {
     return 0;
   } else if(plq1->startExecTs > plq2->startExecTs) {
-    return -1;
-  } else {
     return 1;
+  } else {
+    return -1;
   }
 }
 
@@ -686,15 +685,7 @@ static void cbFoundItem(void* handle, void* param1) {
   // push to qids
   SLongQuery* plq = (SLongQuery*)malloc(sizeof(SLongQuery));
   plq->qId = qInfo->qId;
-  plq->startExecTs = qInfo->startExecTs;
-
-  // commitedMs
-  if(imem) {
-    plq->commitedMs = imem->commitedMs;
-  } else {
-    plq->commitedMs = 0;
-  }
- 
+  plq->startExecTs = qInfo->startExecTs; 
   taosArrayPush(qids, &plq);
 }
 
@@ -735,11 +726,13 @@ bool qFixedNoBlock(void* pRepo, void* pMgmt, int32_t longQueryMs) {
   SLongQuery* plq;
   for(i=0; i < cnt; i++) {
     plq = (SLongQuery* )taosArrayGetP(qids, i);
+    printf(" sort i=%d span=%d qid=0x%"PRIx64" exeTime=0x%"PRIx64". \n",(int)i, (int)(now - plq->startExecTs), plq->qId, plq->startExecTs);
     if(plq->startExecTs > now) continue;
     if(now - plq->startExecTs >= longQueryMs) {
-      qKillQueryByQId(pMgmt, plq->qId, 100, 30); // wait 50*100 ms 
+      qKillQueryByQId(pMgmt, plq->qId, 500, 10); // wait 50*100 ms 
       if(tsdbNoProblem(pRepo)) {
         fixed = true;
+        qWarn("QId:0x%"PRIx64" fixed problem after kill this query.", plq->qId);
         break;
       }
     }
@@ -755,8 +748,9 @@ bool qFixedNoBlock(void* pRepo, void* pMgmt, int32_t longQueryMs) {
 
 //solve tsdb no block to commit
 bool qSolveCommitNoBlock(void* pRepo, void* pMgmt) {
+  qWarn("start solve no block problem.");
   if(qFixedNoBlock(pRepo, pMgmt, 20*1000)) {
     return true;
   }
   return qFixedNoBlock(pRepo, pMgmt, 5*1000);
-}
\ No newline at end of file
+}
diff --git a/src/tsdb/src/tsdbBuffer.c b/src/tsdb/src/tsdbBuffer.c
index af75fc45fde1029eace036698883c330e997cb3c..2ba41dca2aece3defee73a677c32754830e83537 100644
--- a/src/tsdb/src/tsdbBuffer.c
+++ b/src/tsdb/src/tsdbBuffer.c
@@ -216,7 +216,10 @@ void tsdbRecycleBufferBlock(STsdbBufPool* pPool, SListNode *pNode, bool bELastic
   tsdbFreeBufBlock(pBufBlock);
   free(pNode);
   if(bELastic)
-    pPool->nElasticBlocks--;
+   {
+      pPool->nElasticBlocks--;
+      printf(" elastic block reduce one ok. current blocks=%d \n", pPool->nElasticBlocks);
+   }
   else
     pPool->nBufBlocks--;
 }
\ No newline at end of file
diff --git a/src/tsdb/src/tsdbCommit.c b/src/tsdb/src/tsdbCommit.c
index 6fae5c6555fbf8a6eb6deb5b746bacd2e896c375..5514fa80c84ae3ab9242e90379820ccd2a68eda4 100644
--- a/src/tsdb/src/tsdbCommit.c
+++ b/src/tsdb/src/tsdbCommit.c
@@ -548,7 +548,6 @@ static void tsdbEndCommit(STsdbRepo *pRepo, int eno) {
   pRepo->imem = NULL;
   (void)tsdbUnlockRepo(pRepo);
   //save commited time
-  pIMem->commitedMs = taosGetTimestampMs();
   tsdbUnRefMemTable(pRepo, pIMem);
   tsem_post(&(pRepo->readyToCommit));
 }
diff --git a/src/tsdb/src/tsdbHealth.c b/src/tsdb/src/tsdbHealth.c
index b590df28fe6cb18c8e75963531a9525cb809fb54..dddf40d96377fabbd56718bd6f2525ae95a7ad66 100644
--- a/src/tsdb/src/tsdbHealth.c
+++ b/src/tsdb/src/tsdbHealth.c
@@ -40,6 +40,7 @@ int32_t tsdbInsertNewBlock(STsdbRepo * pRepo) {
         } else {
           pPool->nElasticBlocks ++;
           cnt ++ ; 
+          printf(" elastic block add one ok. current blocks=%d \n", pPool->nElasticBlocks);
         }
     }
  } 
@@ -68,7 +69,7 @@ bool tsdbUrgeQueryFree(STsdbRepo * pRepo) {
 
 bool tsdbIdleMemEnough() {
   // TODO config to taos.cfg
-  int32_t lowestRate = 10;  // below 10% idle memory, return not enough memory
+  int32_t lowestRate = 5;  // below 10% idle memory, return not enough memory
   float  memoryUsedMB = 0;
   float  memoryAvailMB;
 
@@ -94,8 +95,9 @@ bool tsdbIdleMemEnough() {
 
 bool tsdbAllowNewBlock(STsdbRepo* pRepo) {
   //TODO config to taos.cfg
-  int32_t nMaxElastic = 0;
+  int32_t nMaxElastic = 1;
   STsdbBufPool* pPool = pRepo->pPool;
+  printf("tsdbAllowNewBlock nElasticBlock(%d) MaxElasticBlocks(%d)\n", pPool->nElasticBlocks, nMaxElastic);
   if(pPool->nElasticBlocks >= nMaxElastic) {
     tsdbWarn("tsdbAllowNewBlock return fasle. nElasticBlock(%d) >= MaxElasticBlocks(%d)", pPool->nElasticBlocks, nMaxElastic);
     return false;
@@ -106,9 +108,7 @@ bool tsdbAllowNewBlock(STsdbRepo* pRepo) {
 bool tsdbNoProblem(STsdbRepo* pRepo) {
   if(!tsdbIdleMemEnough()) 
      return false;
-
-  if(listNEles(pRepo->pPool->bufBlockList)) 
+  if(listNEles(pRepo->pPool->bufBlockList) == 0) 
      return false;
-
   return true;
 }
\ No newline at end of file