add fuser -k -n tcp 6030 to release network port.

.travis.yml

@@ -26,6 +26,7 @@ matrix:
           - python3-pip
           - python3-setuptools
           - valgrind
+          - psmisc
 
     before_script:
       - cd ${TRAVIS_BUILD_DIR}
@@ -142,6 +143,7 @@ matrix:
           - python3-pip
           - python3-setuptools
           - lcov
+          - psmisc
 
     before_script:
       - cd ${TRAVIS_BUILD_DIR}

tests/pytest/test.py

@@ -79,6 +79,9 @@ if __name__ == "__main__":
             time.sleep(1)
             processID = subprocess.check_output(psCmd, shell=True)
 
+        fuserCmd = "fuser -k -n tcp 6030"
+        subprocess.check_output(fuserCmd, shell=True)
+
         tdLog.info('stop All dnodes')
         sys.exit(0)