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Merge pull request #84253 from hrasheed-msft/hdi_vm_naming_updates
removing some superficial vm name use of hn0 & wn0
2 parents f142bb9 + 2d058d8 commit a8d03b5

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‎articles/hdinsight/hbase/apache-troubleshoot-hbase.md

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@@ -63,7 +63,7 @@ hdfs dfs -D "fs.default.name=hdfs://mycluster/" -mkdir /temp
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The error you might see when you try to run the command looks like this:
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```apache
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hdiuser@hn0-spark2:~$ hdfs dfs -D "fs.default.name=hdfs://mycluster/" -mkdir /temp
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hdfs dfs -D "fs.default.name=hdfs://mycluster/" -mkdir /temp
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17/04/05 16:20:52 WARN retry.RetryInvocationHandler: Exception while invoking ClientNamenodeProtocolTranslatorPB.mkdirs over hn0-spark2.2oyzcdm4sfjuzjmj5dnmvscjpg.dx.internal.cloudapp.net/10.0.0.22:8020. Not retrying because try once and fail.
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org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot create directory /temp. Name node is in safe mode.
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It was turned on manually. Use "hdfs dfsadmin -safemode leave" to turn safe mode off.
@@ -127,7 +127,7 @@ The HDInsight cluster has been scaled down to a very few nodes. The number of no
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```
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```apache
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hdiuser@hn0-spark2:~$ hdfs dfsadmin -D "fs.default.name=hdfs://mycluster/" -report
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hdfs dfsadmin -D "fs.default.name=hdfs://mycluster/" -report
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Safe mode is ON
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Configured Capacity: 3372381241344 (3.07 TB)
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Present Capacity: 3138625077248 (2.85 TB)
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2. You also can check the integrity of the HDFS on the HDInsight cluster by using the following commands:
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```apache
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hdiuser@hn0-spark2:~$ hdfs fsck -D "fs.default.name=hdfs://mycluster/" /
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hdfs fsck -D "fs.default.name=hdfs://mycluster/" /
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```
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```apache

‎articles/hdinsight/hdinsight-apache-storm-with-kafka.md

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@@ -467,7 +467,9 @@ To create an Azure Virtual Network, and then create the Kafka and Storm clusters
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The value returned is similar to the following text:
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```output
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wn0-kafka.53qqkiavjsoeloiq3y1naf4hzc.ex.internal.cloudapp.net:9092,wn1-kafka.53qqkiavjsoeloiq3y1naf4hzc.ex.internal.cloudapp.net:9092
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```
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> [!IMPORTANT]
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> While there may be more than two broker hosts for your cluster, you do not need to provide a full list of all hosts to clients. One or two is enough.

‎articles/hdinsight/hdinsight-hadoop-linux-use-ssh-unix.md

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@@ -166,7 +166,9 @@ The worker nodes and Zookeeper nodes are not directly accessible from the intern
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2. From the SSH connection to the head or edge node, use the `ssh` command to connect to a worker node in the cluster:
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```bash
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ssh sshuser@wn0-myhdi
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```
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To retrieve a list of the node names, see the [Manage HDInsight by using the Apache Ambari REST API](hdinsight-hadoop-manage-ambari-rest-api.md#example-get-the-fqdn-of-cluster-nodes) document.
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‎articles/hdinsight/hdinsight-plan-virtual-network-deployment.md

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@@ -111,7 +111,7 @@ Azure provides name resolution for Azure services that are installed in a virtua
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* Any resource that is available on the internet. For example, microsoft.com, windowsupdate.com.
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* Any resource that is in the same Azure Virtual Network, by using the __internal DNS name__ of the resource. For example, when using the default name resolution, the following are example internal DNS names assigned to HDInsight worker nodes:
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* Any resource that is in the same Azure Virtual Network, by using the __internal DNS name__ of the resource. For example, when using the default name resolution, the following are examples of internal DNS names assigned to HDInsight worker nodes:
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* wn0-hdinsi.0owcbllr5hze3hxdja3mqlrhhe.ex.internal.cloudapp.net
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* wn2-hdinsi.0owcbllr5hze3hxdja3mqlrhhe.ex.internal.cloudapp.net

‎articles/hdinsight/hdinsight-troubleshoot-hdfs.md

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@@ -23,8 +23,8 @@ Access the local HDFS from the command line and application code instead of by u
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1. At the command prompt, use `hdfs dfs -D "fs.default.name=hdfs://mycluster/" ...` literally, as in the following command:
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```apache
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hdiuser@hn0-spark2:~$ hdfs dfs -D "fs.default.name=hdfs://mycluster/" -ls /
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```output
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hdfs dfs -D "fs.default.name=hdfs://mycluster/" -ls /
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Found 3 items
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drwxr-xr-x - hdiuser hdfs 0 2017-03-24 14:12 /EventCheckpoint-30-8-24-11102016-01
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drwx-wx-wx - hive hdfs 0 2016-11-10 18:42 /tmp
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3. Run the compiled .jar file (for example, a file named `java-unit-tests-1.0.jar`) on the HDInsight cluster with the following command:
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```apache
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hdiuser@hn0-spark2:~$ hadoop jar java-unit-tests-1.0.jar JavaUnitTests
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hadoop jar java-unit-tests-1.0.jar JavaUnitTests
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hdfs://mycluster/tmp/hive/hive/5d9cf301-2503-48c7-9963-923fb5ef79a7/inuse.info
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hdfs://mycluster/tmp/hive/hive/5d9cf301-2503-48c7-9963-923fb5ef79a7/inuse.lck
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hdfs://mycluster/tmp/hive/hive/a0be04ea-ae01-4cc4-b56d-f263baf2e314/inuse.info
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You see the following error when you run the command:
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```apache
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hdiuser@hn0-spark2:~$ hdfs dfs -D "fs.default.name=hdfs://mycluster/" -mkdir /temp
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```output
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hdfs dfs -D "fs.default.name=hdfs://mycluster/" -mkdir /temp
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17/04/05 16:20:52 WARN retry.RetryInvocationHandler: Exception while invoking ClientNamenodeProtocolTranslatorPB.mkdirs over hn0-spark2.2oyzcdm4sfjuzjmj5dnmvscjpg.dx.internal.cloudapp.net/10.0.0.22:8020. Not retrying because try once and fail.
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org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot create directory /temp. Name node is in safe mode.
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It was turned on manually. Use "hdfs dfsadmin -safemode leave" to turn safe mode off.
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1. Get the status of HDFS on the HDInsight cluster by using the following commands:
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```apache
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```bash
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hdfs dfsadmin -D "fs.default.name=hdfs://mycluster/" -report
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```
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```apache
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hdiuser@hn0-spark2:~$ hdfs dfsadmin -D "fs.default.name=hdfs://mycluster/" -report
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```output
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hdfs dfsadmin -D "fs.default.name=hdfs://mycluster/" -report
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Safe mode is ON
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Configured Capacity: 3372381241344 (3.07 TB)
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Present Capacity: 3138625077248 (2.85 TB)
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2. Check the integrity of HDFS on the HDInsight cluster by using the following commands:
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```apache
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hdiuser@hn0-spark2:~$ hdfs fsck -D "fs.default.name=hdfs://mycluster/" /
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```bash
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hdfs fsck -D "fs.default.name=hdfs://mycluster/" /
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```
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```apache
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```output
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Connecting to namenode via http://hn0-spark2.2oyzcdm4sfjuzjmj5dnmvscjpg.dx.internal.cloudapp.net:30070/fsck?ugi=hdiuser&path=%2F
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FSCK started by hdiuser (auth:SIMPLE) from /10.0.0.22 for path / at Wed Apr 05 16:40:28 UTC 2017
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....................................................................................................

‎articles/hdinsight/kafka/apache-kafka-get-started.md

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Once connected, you see information similar to the following text:
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```text
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```output
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Authorized uses only. All activity may be monitored and reported.
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Welcome to Ubuntu 16.04.4 LTS (GNU/Linux 4.13.0-1011-azure x86_64)
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Welcome to Apache Kafka on HDInsight.
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Last login: Thu Mar 29 13:25:27 2018 from 108.252.109.241
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ssuhuser@hn0-mykafk:~$
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```
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## <a id="getkafkainfo"></a>Get the Apache Zookeeper and Broker host information

‎articles/hdinsight/kafka/apache-kafka-quickstart-powershell.md

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Once connected, you see information similar to the following text:
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```text
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```output
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Authorized uses only. All activity may be monitored and reported.
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Welcome to Ubuntu 16.04.4 LTS (GNU/Linux 4.13.0-1011-azure x86_64)
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Welcome to Kafka on HDInsight.
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Last login: Thu Mar 29 13:25:27 2018 from 108.252.109.241
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ssuhuser@hn0-mykafk:~$
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```
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## <a id="getkafkainfo"></a>Get the Apache Zookeeper and Broker host information

‎articles/hdinsight/kafka/apache-kafka-quickstart-resource-manager-template.md

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Once connected, you see information similar to the following text:
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```text
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```output
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Authorized uses only. All activity may be monitored and reported.
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Welcome to Ubuntu 16.04.4 LTS (GNU/Linux 4.13.0-1011-azure x86_64)
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Welcome to Kafka on HDInsight.
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Last login: Thu Mar 29 13:25:27 2018 from 108.252.109.241
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ssuhuser@hn0-mykafk:~$
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```
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## <a id="getkafkainfo"></a>Get the Apache Zookeeper and Broker host information

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