hit-lacus commented on code in PR #1994:
URL: https://github.com/apache/kylin/pull/1994#discussion_r992109061
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core-common/src/main/java/org/apache/kylin/common/KylinConfig.java:
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@@ -65,7 +65,7 @@ public class KylinConfig extends KylinConfigBase {
public static final String KYLIN_CONF = "KYLIN_CONF";
// static cached instances
- private static KylinConfig SYS_ENV_INSTANCE = null;
+ private static volatile KylinConfig SYS_ENV_INSTANCE = null;
Review Comment:
Why need add `volatile` here?
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