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https://issues.apache.org/jira/browse/HADOOP-19306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17898085#comment-17898085
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ASF GitHub Bot commented on HADOOP-19306:
-----------------------------------------
jojochuang commented on code in PR #7140:
URL: https://github.com/apache/hadoop/pull/7140#discussion_r1841380310
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/SaslMechanismFactory.java:
##########
@@ -0,0 +1,75 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.security;
+
+import org.apache.hadoop.HadoopIllegalArgumentException;
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.conf.Configuration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import static
org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_SASL_MECHANISM_DEFAULT;
+import static
org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_SASL_MECHANISM_KEY;
+
+/**
+ * SASL related constants.
+ */
[email protected]({"HDFS", "MapReduce"})
[email protected]
+public final class SaslMechanismFactory {
+ static final Logger LOG =
LoggerFactory.getLogger(SaslMechanismFactory.class);
+
+ private static final String SASL_MECHANISM_ENV = "HADOOP_SASL_MECHANISM";
+ private static final String SASL_MECHANISM;
+
+ static {
+ // env
+ final String envValue = System.getenv(SASL_MECHANISM_ENV);
+ LOG.debug("{} = {} (env)", SASL_MECHANISM_ENV, envValue);
+
+ // conf
+ final Configuration conf = new Configuration();
Review Comment:
The rest of PR looks good to me. This part I'm not sure. So what about the
normal case, like YARN Resource Manager, do they also get the value from env
variable? Then what's the use of the configuration object?
> Support user defined auth Callback in SaslRpcServer
> ---------------------------------------------------
>
> Key: HADOOP-19306
> URL: https://issues.apache.org/jira/browse/HADOOP-19306
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc, security
> Reporter: Tsz-wo Sze
> Assignee: Tsz-wo Sze
> Priority: Major
> Labels: pull-request-available
>
> Similar to HDFS-17576, SaslRpcServer should support CustomizedCallbackHandler.
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