slfan1989 commented on code in PR #7527:
URL: https://github.com/apache/hadoop/pull/7527#discussion_r2020328086
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java:
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@@ -243,6 +243,11 @@ public class CommonConfigurationKeys extends
CommonConfigurationKeysPublic {
"hadoop.security.token.service.use_ip";
public static final boolean HADOOP_SECURITY_TOKEN_SERVICE_USE_IP_DEFAULT =
true;
+ public static final String
+ HADOOP_SECURITY_HOSTNAME_CACHE_EXPIRE_INTERVAL_SECONDS =
+ "hadoop.security.hostname.cache.expire-interval.seconds";
Review Comment:
This is a useful configuration. Should we place it in the configuration
file, such as core-site.xml?
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