Merge pull request #88897 from dagiro/cats123

cats123

Author: PRMerger6

articles/hdinsight/hdinsight-hadoop-access-yarn-app-logs-linux.md

@@ -2,15 +2,14 @@
 title: Access Apache Hadoop YARN application logs on Linux-based HDInsight - Azure 
 description: Learn how to access YARN application logs on a Linux-based HDInsight (Apache Hadoop) cluster using both the command-line and a web browser.
 author: hrasheed-msft
+ms.author: hrasheed
 ms.reviewer: jasonh
-
 ms.service: hdinsight
 ms.custom: hdinsightactive
 ms.topic: conceptual
 ms.date: 03/22/2018
-ms.author: hrasheed
-
 ---
+
 # Access Apache Hadoop YARN application logs on Linux-based HDInsight
 
 Learn how to access the logs for [Apache Hadoop YARN](https://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/YARN.html) (Yet Another Resource Negotiator) applications on an [Apache Hadoop](https://hadoop.apache.org/) cluster in Azure HDInsight.
@@ -58,11 +57,11 @@ The YARN ResourceManager UI runs on the cluster headnode. It is accessed through
 1. In your web browser, navigate to https://CLUSTERNAME.azurehdinsight.net. Replace CLUSTERNAME with the name of your HDInsight cluster.
 2. From the list of services on the left, select **YARN**.
 
-    ![Yarn service selected](./media/hdinsight-hadoop-access-yarn-app-logs-linux/yarn-service-selected.png)
+    ![Apache Ambari Yarn service selected](./media/hdinsight-hadoop-access-yarn-app-logs-linux/yarn-service-selected.png)
 
 3. From the **Quick Links** dropdown, select one of the cluster head nodes and then select **ResourceManager Log**.
 
-    ![Yarn quick links](./media/hdinsight-hadoop-access-yarn-app-logs-linux/hdi-yarn-quick-links.png)
+    ![Apache Ambari Yarn quick links](./media/hdinsight-hadoop-access-yarn-app-logs-linux/hdi-yarn-quick-links.png)
 
     You are presented with a list of links to YARN logs.
 

articles/hdinsight/hdinsight-hadoop-architecture.md

@@ -40,7 +40,7 @@ The NodeManagers run the tasks that make up the application, then report their p
 
 All HDInsight cluster types deploy YARN. The ResourceManager is deployed for high availability with a primary and secondary instance, which runs on the first and second head nodes within the cluster respectively. Only the one instance of the ResourceManager is active at a time. The NodeManager instances run across the available worker nodes in the cluster.
 
-![YARN on HDInsight](./media/hdinsight-hadoop-architecture/apache-yarn-on-hdinsight.png)
+![Apache YARN on Azure HDInsight](./media/hdinsight-hadoop-architecture/apache-yarn-on-hdinsight.png)
 
 ## Next steps
 

articles/hdinsight/hdinsight-hadoop-collect-debug-heap-dump-linux.md

@@ -90,11 +90,11 @@ To modify the configuration for a service, use the following steps:
 
 3. Using the **Filter...** entry, enter **opts**. Only items containing this text are displayed.
 
-    ![Filtered list](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hdinsight-filter-list.png)
+    ![Apache Ambari config filtered list](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hdinsight-filter-list.png)
 
 4. Find the **\*\_OPTS** entry for the service you want to enable heap dumps for, and add the options you wish to enable. In the following image, I've added `-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp/` to the **HADOOP\_NAMENODE\_OPTS** entry:
 
-    ![HADOOP_NAMENODE_OPTS with -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp/](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hadoop-namenode-opts.png)
+    ![Apache Ambari hadoop-namenode-opts](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hadoop-namenode-opts.png)
 
    > [!NOTE]  
    > When enabling heap dumps for the map or reduce child process, look for the fields named **mapreduce.admin.map.child.java.opts** and **mapreduce.admin.reduce.child.java.opts**.
@@ -107,11 +107,11 @@ To modify the configuration for a service, use the following steps:
 
 6. Select each service that needs a restart, and use the **Service Actions** button to **Turn On Maintenance Mode**. Maintenance mode prevents alerts from being generated from the service when you restart it.
 
-    ![Turn on maintenance mode menu](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hdi-maintenance-mode.png)
+    ![Turn on hdi maintenance mode menu](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hdi-maintenance-mode.png)
 
 7. Once you have enabled maintenance mode, use the **Restart** button for the service to **Restart All Effected**
 
-    ![Restart All Affected entry](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hdi-restart-all-button.png)
+    ![Apache Ambari Restart All Affected entry](./media/hdinsight-hadoop-collect-debug-heap-dump-linux/hdi-restart-all-button.png)
 
    > [!NOTE]  
    > The entries for the **Restart** button may be different for other services.