okumin commented on code in PR #4731:
URL: https://github.com/apache/hive/pull/4731#discussion_r1341957484
##########
common/src/java/org/apache/hadoop/hive/conf/HiveConf.java:
##########
@@ -850,6 +851,10 @@ public static enum ConfVars {
HIVEIGNOREMAPJOINHINT("hive.ignore.mapjoin.hint", true, "Ignore the
mapjoin hint"),
+ HIVE_CONF_LOCKED_LIST("hive.conf.locked.list", "", "Comma separated " +
+ "list of configuration options which are locked and can not be
changed at runtime. Warning is logged and the " +
+ "change is ignored when user try to set these configs during
runtime"),
Review Comment:
There might be some security holes.
```
$ beeline
...
0: jdbc:hive2://hive-hiveserver2:10000/defaul> set hive.conf.locked.list;
+-------------------------------------+
| set |
+-------------------------------------+
| hive.conf.locked.list is undefined |
+-------------------------------------+
1 row selected (0.179 seconds)
0: jdbc:hive2://hive-hiveserver2:10000/defaul> set
hive.conf.locked.list=hive.execution.engine;
No rows affected (0.011 seconds)
0: jdbc:hive2://hive-hiveserver2:10000/defaul> set hive.conf.locked.list;
+----------------------------------------------+
| set |
+----------------------------------------------+
| hive.conf.locked.list=hive.execution.engine |
+----------------------------------------------+
1 row selected (0.013 seconds)
```
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