yangjiandan commented on code in PR #7527:
URL: https://github.com/apache/hadoop/pull/7527#discussion_r2020464185
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java:
##########
@@ -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:
Good point! I agree this is a useful config to expose.
I'll update the PR to include it in the core-default.xml with 0 as the
default value to maintain backword compatibility.
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