[GitHub] [hadoop] iwasakims commented on a change in pull request #3187: HADOOP-12665. Document hadoop.security.token.service.use_ip.

[GitBox <gi...@apache.org>]

iwasakims commented on a change in pull request #3187:
URL: https://github.com/apache/hadoop/pull/3187#discussion_r666206327



##########
File path: hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
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@@ -701,6 +701,27 @@
   </description>
 </property>
 
+  <property>
+    <name>hadoop.security.token.service.use_ip</name>
+    <value>true</value>
+    <description>
+      Controls whether tokens always use IP addresses.
+      DNS changes will not be detected if this option is enabled.
+      Existing client connections that break will always reconnect
+      to the IP of the original host. New clients will connect
+      to the host's new IP but fail to locate a token.
+      Disabling this option will allow existing and new clients
+      to detect an IP change and continue to locate the new host's token.
+
+      In secure multi-homed environments, the following parameter

Review comment:
       "the following parameter" should be "this parameter" if it means hadoop.security.token.service.use_ip?




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