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https://issues.apache.org/jira/browse/STORM-211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14017685#comment-14017685
]
ASF GitHub Bot commented on STORM-211:
--------------------------------------
Github user revans2 commented on a diff in the pull request:
https://github.com/apache/incubator-storm/pull/128#discussion_r13385421
--- Diff:
external/storm-hdfs/src/main/java/org/apache/storm/hdfs/common/security/HdfsSecurityUtil.java
---
@@ -0,0 +1,48 @@
+/**
+ * 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.storm.hdfs.common.security;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.security.SecurityUtil;
+import org.apache.hadoop.security.UserGroupInformation;
+
+import java.io.IOException;
+import java.util.Map;
+
+/**
+ * This class provides util methods for storm-hdfs connector communicating
+ * with secured HDFS.
+ */
+public class HdfsSecurityUtil {
+ public static final String STORM_KEYTAB_FILE_KEY = "storm.keytab.file";
+ public static final String STORM_USER_NAME_KEY =
"storm.kerberos.principal";
+
+ public static void login(Map conf, Configuration hdfsConfig) throws
IOException {
+ if (UserGroupInformation.isSecurityEnabled()) {
--- End diff --
With our previous discussion about shipping configs packaged in the jar vs
as a part of the topology conf and then populating a Hadoop Configuration.
This is one of those places where some of the config really has to be on the
class path, and cannot be a part of the topology conf. UserGroupInformation
internally is creating a new Configuration that will only search the class path
and pull in configs it finds. It then uses that config to decide if security
is enabled. If you don't have a core-site.xml that is configured with
security, it will never think you have security turned on.
> Add module for HDFS integration
> -------------------------------
>
> Key: STORM-211
> URL: https://issues.apache.org/jira/browse/STORM-211
> Project: Apache Storm (Incubating)
> Issue Type: Sub-task
> Reporter: P. Taylor Goetz
>
> Add a module with generic components (storm, trident) for interacting with
> HDFS:
> - Write to regular and sequence files
> - Core bolts, and Trident state implementation.
> - Integrate with secure (kerberos-enabled) HDFS
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