jerqi commented on code in PR #9565:
URL: https://github.com/apache/gravitino/pull/9565#discussion_r2655007995
##########
clients/client-java/src/main/java/org/apache/gravitino/client/KerberosTokenProvider.java:
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@@ -155,6 +135,68 @@ void setHost(String host) {
this.host = host;
}
+ private interface SubjectProvider {
+ Subject get() throws LoginException;
+
+ void close() throws LoginException;
+ }
+
Review Comment:
The Flink has logined using keytab and principal. We should reuse the
credential created by Flink. If the framework maintain the credential. The
client won't need to maintain the credential. We don't need to login again.
ExistingSubjectProvider is used for reusing the framework's credential.
LoginSubjectProvider will use keytab and principal to login, generate
credentail.
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