diff --git a/Jenkinsfile b/Jenkinsfile
index d96eeaa724..e1bb27bf67 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -6,6 +6,7 @@ node {
 }
 
 def skipstage=0
+
 def abortPreviousBuilds() {
   def currentJobName = env.JOB_NAME
   def currentBuildNumber = env.BUILD_NUMBER.toInteger()
@@ -24,7 +25,7 @@ def abortPreviousBuilds() {
     build.doKill()    //doTerm(),doKill(),doTerm()
   }
 }
-//abort previous build
+//  abort previous build
 abortPreviousBuilds()
 def abort_previous(){
   def buildNumber = env.BUILD_NUMBER as int
@@ -32,7 +33,8 @@ def abort_previous(){
   milestone(buildNumber)
 }
 def pre_test(){
-
+    
+    
     sh '''
     sudo rmtaos || echo "taosd has not installed"
     '''
@@ -79,6 +81,10 @@ pipeline {
               changeRequest()
           }
           steps {
+            script{
+              abort_previous()
+              abortPreviousBuilds()
+            }
           sh'''
           cp -r ${WORKSPACE} ${WORKSPACE}.tes
           cd ${WORKSPACE}.tes
diff --git a/tests/test-all.sh b/tests/test-all.sh
index b5e23c1506..b8f06d8ede 100755
--- a/tests/test-all.sh
+++ b/tests/test-all.sh
@@ -100,7 +100,10 @@ function runSimCaseOneByOnefq {
           cp -r ../../sim ~/sim_`date "+%Y_%m_%d_%H:%M:%S" `
           rm -rf ../../sim/case.log
         fi
-        exit 8
+        dohavecore $2
+        if [[ $2 == 1 ]];then
+          exit 8
+        fi
       fi
       end_time=`date +%s`
       echo execution time of $case was `expr $end_time - $start_time`s. | tee -a out.log
@@ -169,10 +172,13 @@ function runPyCaseOneByOnefq() {
         out_log=`tail -1 pytest-out.log  `
         if [[ $out_log =~ 'failed' ]];then
           cp -r ../../sim ~/sim_`date "+%Y_%m_%d_%H:%M:%S" `
-          echo '=====================log====================='
+          echo '=====================log===================== '
           cat ../../sim/case.log
           rm -rf ../../sim/case.log
-          exit 8
+          dohavecore $2
+          if [[ $2 == 1 ]];then
+            exit 8
+          fi
         fi
         echo execution time of $case was `expr $end_time - $start_time`s. | tee -a pytest-out.log
       else