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From "Joey Echeverria (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10908) ClusterNodeSetup, CommandsManual, FileSystemShell needs updating
Date Sun, 14 Dec 2014 21:04:14 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14246126#comment-14246126
] 

Joey Echeverria commented on HADOOP-10908:
------------------------------------------

Nice work [~aw]!

{quote}
+  with thousands of nodes.  To play with Hadoop, you may first want to
+  install it on a single machine (see {{{./SingleCluster.html}Single Node Setup}}) first.
{quote}

We can remove the second 'first'.

{quote}
       size for the daemon. By default, the value is 1000.  If you want to
       configure the values separately for each deamon you can use.
{quote}

That last sentence is confusing. It should probably provide an example of a daemon-specific
HEAPSIZE variable

{quote}
+    Start a HDFS DataNode with the following command on the 
+    designated node as <hdfs>:
{quote}

s/on the designated node/on each designated node/

{quote}
+    If <<etc/hadoop/slaves>> and trusted access is configured, all of the
+    HDFS processes can be started with a utility script.  As <hdfs>:
{quote}

We should define what trusted access means. I assume you meant password-less SSH.

{quote}
+[yarn]$ $HADOOP_YARN_HOME/bin/yarn --daemon stop nodemanager
 ----    	
 
+    If <<etc/hadoop/slaves>> and trusted access is configured, all of the
+    YARN processes can be started with a utility script.  As <yarn>:
+
+----
+[yarn]$ $HADOOP_PREFIX/sbin/start-yarn.sh
+---- 
+
   Stop the WebAppProxy server. Run on the WebAppProxy  server as
{quote}

This looks like a copy/paste error. It should say "YARN processes can be stopped" and "[yarn]$
$HADOOP_PREFIX/sbin/stop-yarn.sh".





> ClusterNodeSetup, CommandsManual, FileSystemShell needs updating
> ----------------------------------------------------------------
>
>                 Key: HADOOP-10908
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10908
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>         Attachments: HADOOP-10908.patch
>
>
> A lot of the instructions in the cluster node setup are not good practices post-9902.



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