Ngone51 commented on a change in pull request #32287:
URL: https://github.com/apache/spark/pull/32287#discussion_r618541639
##########
File path:
common/network-common/src/main/java/org/apache/spark/network/util/NettyUtils.java
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@@ -37,6 +37,14 @@
*/
public class NettyUtils {
+ /**
+ * A flag which indicates whether the Netty OOM error has raised during
shuffle.
+ * If true, unless there's no in-flight fetch requests, all the pending
shuffle
+ * fetch requests will be deferred until the flag is unset (whenever there's
a
+ * complete fetch request).
+ */
+ public static volatile boolean isNettyOOMOnShuffle = false;
Review comment:
I can make it but just wondering is it necessary? Because I think the
operation (read/write) on `boolean` is already atomic.
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