MCS server python code uses python3 by default in (RHEL|Centos)8, (Suse|SLES)15 and Fedora whilst other distributions use default python interpreter.

RPM now restarts MDB on uninstall.

systemd logs a message if SM is not configured.

.gitignore

@@ -148,6 +148,8 @@ oam/install_scripts/mcs-writeengineserver.service
 oam/install_scripts/mcs-storagemanager.service
 oam/install_scripts/mcs_module_installer.sh
 oam/install_scripts/slave-rep-columnstore.sh
+oam/install_scripts/mcs-loadbrm.py
+oam/install_scripts/mcs-start-storagemanager.py
 oam/install_scripts/startupTests.sh
 oam/post/mcstest-001.sh
 oam/post/mcstest-002.sh

build/postUn_storage_engine.sh

@@ -0,0 +1,31 @@
+running_systemd() {
+   if  [ "$(ps --no-headers -o comm 1)" = "systemd" ]; then
+       echo 0
+   else
+       echo 1
+   fi
+}
+
+rpmmode=upgrade
+if  [ "$1" -eq "$1" 2> /dev/null ]; then
+	if [ $1 -ne 1 ]; then
+		rpmmode=erase
+	fi
+else
+	rpmmode=erase
+fi
+
+if [ $rpmmode = erase ]; then
+    if [ ! -z "$(pgrep -x mysqld)" ];then
+        systemctl cat mariadb.service > /dev/null 2>&1
+        if [ $? -eq 0 ] && [ $(running_systemd) -eq 0 ]; then
+            systemctl restart mariadb.service > /dev/null 2>&1
+        else
+            pkill mysqld > /dev/null 2>&1
+            /usr/bin/mysqld_safe &
+        fi
+    fi
+fi
+
+exit 0
+

cmake/cpackEngineRPM.cmake

@@ -89,6 +89,7 @@ endif()
 SET(CPACK_RPM_columnstore-engine_PRE_INSTALL_SCRIPT_FILE ${CMAKE_SOURCE_DIR}/build/preInstall_storage_engine.sh)
 SET(CPACK_RPM_columnstore-engine_POST_INSTALL_SCRIPT_FILE ${CMAKE_SOURCE_DIR}/build/postInstall_storage_engine.sh)
 SET(CPACK_RPM_columnstore-engine_PRE_UNINSTALL_SCRIPT_FILE ${CMAKE_SOURCE_DIR}/build/preUn_storage_engine.sh)
+SET(CPACK_RPM_columnstore-engine_POST_UNINSTALL_SCRIPT_FILE ${CMAKE_SOURCE_DIR}/build/postUn_storage_engine.sh)
 
 SET(CPACK_RPM_SPEC_MORE_DEFINE "${CPACK_RPM_SPEC_MORE_DEFINE}
 %define ignore \#

oam/install_scripts/CMakeLists.txt

@@ -23,7 +23,7 @@ configure_file("${CMAKE_CURRENT_SOURCE_DIR}/mcs-loadbrm.service.in" "${CMAKE_CUR
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/mcs-storagemanager.service.in" "${CMAKE_CURRENT_SOURCE_DIR}/mcs-storagemanager.service" @ONLY)
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/mcs-stop-controllernode.sh.in" "${CMAKE_CURRENT_SOURCE_DIR}/mcs-stop-controllernode.sh" @ONLY)
 
-IF(RPM MATCHES "(rhel|centos)8")
+IF(RPM MATCHES "(rhel|centos)8|(sles|suse)15|fedora")
     SET(PYTHON_SHEBANG "#!/usr/bin/env python3")
 ELSE()
     SET(PYTHON_SHEBANG "#!/usr/bin/env python")

oam/install_scripts/mcs-start-storagemanager.py.in

@@ -29,5 +29,7 @@ if __name__ == '__main__':
 
 
     if storage.lower() == 's3' and not bucket.lower() == 'some_bucket':
+        print("Using S3 storage.")
         sys.exit(0)
+    print("S3 storage has not been set up for MariaDB ColumnStore. StorageManager service fails to start.")
     sys.exit(1)