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HADOOP-8185. Update namenode -format documentation and add -nonInteractive and -force. Contributed by Arpit Gupta.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1333141 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2012-05-02 18:17:18 +00:00
parent 1c96e52533
commit 13a5af0907
2 changed files with 9 additions and 3 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -279,6 +279,9 @@ Release 2.0.0 - UNRELEASED
HADOOP-7549. Use JDK ServiceLoader mechanism to find FileSystem implementations. (tucu)
HADOOP-8185. Update namenode -format documentation and add -nonInteractive
and -force. (Arpit Gupta via atm)
OPTIMIZATIONS
BUG FIXES

9
hadoop-common-project/hadoop-common/src/main/docs/src/documentation/content/xdocs/commands_manual.xml
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@ -696,7 +696,7 @@
<a href="http://hadoop.apache.org/hdfs/docs/current/hdfs_user_guide.html#Upgrade+and+Rollback">Upgrade and Rollback</a>.
</p>
<p>
<code>Usage: hadoop namenode [-format] | [-upgrade] | [-rollback] | [-finalize] | [-importCheckpoint] | [-checkpoint] | [-backup]</code>
<code>Usage: hadoop namenode [-format [-force] [-nonInteractive] [-clusterid someid]] | [-upgrade] | [-rollback] | [-finalize] | [-importCheckpoint] | [-checkpoint] | [-backup]</code>
</p>
<table>
<tr><th> COMMAND_OPTION </th><th> Description </th></tr>
@ -714,8 +714,11 @@
<td>Start namenode in backup role, maintaining an up-to-date in-memory copy of the namespace and creating periodic checkpoints.</td>
</tr>
<tr>
<td><code>-format</code></td>
<td>Formats the namenode. It starts the namenode, formats it and then shut it down.</td>
<td><code>-format [-force] [-nonInteractive] [-clusterid someid]</code></td>
<td>Formats the namenode. It starts the namenode, formats it and then shuts it down. User will be prompted before formatting any non empty name directories in the local filesystem.<br/>
-nonInteractive: User will not be prompted for input if non empty name directories exist in the local filesystem and the format will fail.<br/>
-force: Formats the namenode and the user will NOT be prompted to confirm formatting of the name directories in the local filesystem. If -nonInteractive option is specified it will be ignored.<br/>
-clusterid: Associates the namenode with the id specified. When formatting federated namenodes use this option to make sure all namenodes are associated with the same id.</td>
</tr>
<tr>
<td><code>-upgrade</code></td>