[TD-1966]<test>fix test case error about valgrind

Jenkinsfile

@@ -89,7 +89,6 @@ pipeline {
             catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
                 sh '''
                 cd ${WKC}/tests/pytest
-                ./crash_gen.sh --valgrind -p -t 10 -s 100 -b 4
                 ./handle_crash_gen_val_log.sh
                 '''
             }

tests/pytest/handle_crash_gen_val_log.sh

@@ -5,7 +5,9 @@ GREEN='\033[1;32m'
 GREEN_DARK='\033[0;32m'
 GREEN_UNDERLINE='\033[4;32m'
 NC='\033[0m'
-
+nohup /root/TDinternal/debug/build/bin/taosd -c /root/TDinternal/community/sim/dnode1/cfg >/dev/null &
+./crash_gen.sh --valgrind -p -t 10 -s 100 -b 4
+pidof taosd|xargs kill  
 grep 'start to execute\|ERROR SUMMARY' valgrind.err|grep -v 'grep'|uniq|tee crash_gen_mem_err.log
 
 for memError in `grep 'ERROR SUMMARY' crash_gen_mem_err.log | awk '{print $4}'`