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https://issues.apache.org/jira/browse/HADOOP-19359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18028860#comment-18028860
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ASF GitHub Bot commented on HADOOP-19359:
-----------------------------------------

szetszwo commented on code in PR #7983:
URL: https://github.com/apache/hadoop/pull/7983#discussion_r2417673720


##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/SaslMechanismFactory.java:
##########
@@ -65,5 +65,13 @@ public static boolean isDefaultMechanism(String 
saslMechanism) {
     return HADOOP_SECURITY_SASL_MECHANISM_DEFAULT.equals(saslMechanism);
   }
 
+  public static boolean isDigestMechanism(String saslMechanism) {
+    return saslMechanism.startsWith("DIGEST-");

Review Comment:
   In some cases, conf objects in unavailable.   





> Accelerate token negotiation for other similar mechanisms.
> ----------------------------------------------------------
>
>                 Key: HADOOP-19359
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19359
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc, security
>            Reporter: Tsz-wo Sze
>            Assignee: Tsz-wo Sze
>            Priority: Major
>              Labels: pull-request-available
>
> HADOOP-19227 changed ipc.Server to accelerate token negotiation only for the 
> default mechanism.
> In this JIRA, we change to support other similar mechanisms.



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