[ISSUE #2872] remove log files created by integration test when mvn clean

test/pom.xml

@@ -60,6 +60,20 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-clean-plugin</artifactId>
+                <version>3.1.0</version>
+                <configuration>
+                    <filesets>
+                        <fileset>
+                            <includes>
+                                <include>**/it_test.log</include>
+                            </includes>
+                        </fileset>
+                    </filesets>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>