1, update db.sh: add db information for addtional engines;
2,update linkis-env.sh, add MySQL and Openlookeng JDBC PATH defination.
diff --git a/linkis-dist/deploy-config/db.sh b/linkis-dist/deploy-config/db.sh
index 586a2b3..7302ad0 100644
--- a/linkis-dist/deploy-config/db.sh
+++ b/linkis-dist/deploy-config/db.sh
@@ -34,13 +34,15 @@
HIVE_META_USER=""
HIVE_META_PASSWORD=""
-LK_HOST=
+### define openLookeng parameters for connection.
+OLK_HOST=
OLK_PORT=
OLK_CATALOG=
OLK_SCHEMA=
OLK_USER=
OLK_PASSWORD=
+### define Presto parameters for connection.
PRESTO_HOST=
PRESTO_PORT=
PRESTO_CATALOG=
diff --git a/linkis-dist/deploy-config/linkis-env.sh b/linkis-dist/deploy-config/linkis-env.sh
index 3272125..f37d072 100644
--- a/linkis-dist/deploy-config/linkis-env.sh
+++ b/linkis-dist/deploy-config/linkis-env.sh
@@ -178,6 +178,6 @@
export ENABLE_HIVE=true
export ENABLE_SPARK=true
-## if MYSQL_CONNECT_JAVA_PATH is set, the linkis can check JDBC driver
+## define MYSQL_CONNECT_JAVA_PATH&OLK_JDBC_PATH, the linkis can check JDBC driver
MYSQL_CONNECT_JAVA_PATH=
OLK_JDBC_PATH=
\ No newline at end of file
