gaborgsomogyi commented on code in PR #21114:
URL: https://github.com/apache/flink/pull/21114#discussion_r999540330
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flink-runtime/src/main/java/org/apache/flink/runtime/security/token/KerberosDelegationTokenManagerFactory.java:
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@@ -40,12 +41,21 @@ public static DelegationTokenManager create(
ClassLoader classLoader,
Configuration configuration,
@Nullable ScheduledExecutor scheduledExecutor,
- @Nullable ExecutorService ioExecutor) {
+ @Nullable ExecutorService ioExecutor)
+ throws IOException {
if
(configuration.getBoolean(SecurityOptions.KERBEROS_FETCH_DELEGATION_TOKEN)) {
if (HadoopDependency.isHadoopCommonOnClasspath(classLoader)) {
- return new KerberosDelegationTokenManager(
- configuration, scheduledExecutor, ioExecutor);
+ KerberosLoginProvider kerberosLoginProvider =
+ new KerberosLoginProvider(configuration);
+ if (kerberosLoginProvider.isLoginPossible()) {
Review Comment:
Having a static function which is hardly testable would be more strange.
From perf perspective this runs once per cluster start.
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