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From "Chunjun Xiao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2892) Some of property descriptions are not given(hdfs-default.xml)
Date Tue, 15 Jul 2014 07:18:06 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chunjun Xiao updated HDFS-2892:
-------------------------------

    Description: 
dfs.datanode.https.addressHi..I taken 23.0 release form http://hadoop.apache.org/common/releases.html#11+Nov%2C+2011%3A+release+0.23.0+available

I just gone through all properties provided in the hdfs-default.xml..Some of the property
description not mentioned..It's better to give description of property and usage(how to configure
) and Only MapReduce related jars only provided..Please check following two configurations


 *No Description*

{noformat}
<property>
  <name>dfs.datanode.https.address</name>
  <value>0.0.0.0:50475</value>
</property>

<property>
  <name>dfs.namenode.https-address</name>
  <value>0.0.0.0:50470</value>
</property>
{noformat}


 Better to mention example usage (what to configure...format(syntax))in desc,here I did not
get what default mean whether this name of n/w interface or something else

 <property>
  <name>dfs.datanode.dns.interface</name>
  <value>default</value>
  <description>The name of the Network Interface from which a data node should 
  report its IP address.
  </description>
 </property>


The following property is commented..If it is not supported better to remove.

<property>
   <name>dfs.cluster.administrators</name>
   <value>ACL for the admins</value>
   <description>This configuration is used to control who can access the
                default servlets in the namenode, etc.
   </description>
</property>




 Small clarification for following property..if some value configured this then NN will be
safe mode upto this much time..
May I know usage of the following property...
<property>
  <name>dfs.blockreport.initialDelay</name>  <value>0</value>
  <description>Delay for first block report in seconds.</description>
</property>


  was:
Hi..I taken 23.0 release form http://hadoop.apache.org/common/releases.html#11+Nov%2C+2011%3A+release+0.23.0+available

I just gone through all properties provided in the hdfs-default.xml..Some of the property
description not mentioned..It's better to give description of property and usage(how to configure
) and Only MapReduce related jars only provided..Please check following two configurations


 *No Description*

{noformat}
<property>
  <name>dfs.datanode.https.address</name>
  <value>0.0.0.0:50475</value>
</property>

<property>
  <name>dfs.namenode.https-address</name>
  <value>0.0.0.0:50470</value>
</property>
{noformat}


 Better to mention example usage (what to configure...format(syntax))in desc,here I did not
get what default mean whether this name of n/w interface or something else

 <property>
  <name>dfs.datanode.dns.interface</name>
  <value>default</value>
  <description>The name of the Network Interface from which a data node should 
  report its IP address.
  </description>
 </property>


The following property is commented..If it is not supported better to remove.

<property>
   <name>dfs.cluster.administrators</name>
   <value>ACL for the admins</value>
   <description>This configuration is used to control who can access the
                default servlets in the namenode, etc.
   </description>
</property>




 Small clarification for following property..if some value configured this then NN will be
safe mode upto this much time..
May I know usage of the following property...
<property>
  <name>dfs.blockreport.initialDelay</name>  <value>0</value>
  <description>Delay for first block report in seconds.</description>
</property>



> Some of property descriptions are not given(hdfs-default.xml) 
> --------------------------------------------------------------
>
>                 Key: HDFS-2892
>                 URL: https://issues.apache.org/jira/browse/HDFS-2892
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 0.23.0
>            Reporter: Brahma Reddy Battula
>            Priority: Trivial
>
> dfs.datanode.https.addressHi..I taken 23.0 release form http://hadoop.apache.org/common/releases.html#11+Nov%2C+2011%3A+release+0.23.0+available
> I just gone through all properties provided in the hdfs-default.xml..Some of the property
description not mentioned..It's better to give description of property and usage(how to configure
) and Only MapReduce related jars only provided..Please check following two configurations
>  *No Description*
> {noformat}
> <property>
>   <name>dfs.datanode.https.address</name>
>   <value>0.0.0.0:50475</value>
> </property>
> <property>
>   <name>dfs.namenode.https-address</name>
>   <value>0.0.0.0:50470</value>
> </property>
> {noformat}
>  Better to mention example usage (what to configure...format(syntax))in desc,here I did
not get what default mean whether this name of n/w interface or something else
>  <property>
>   <name>dfs.datanode.dns.interface</name>
>   <value>default</value>
>   <description>The name of the Network Interface from which a data node should

>   report its IP address.
>   </description>
>  </property>
> The following property is commented..If it is not supported better to remove.
> <property>
>    <name>dfs.cluster.administrators</name>
>    <value>ACL for the admins</value>
>    <description>This configuration is used to control who can access the
>                 default servlets in the namenode, etc.
>    </description>
> </property>
>  Small clarification for following property..if some value configured this then NN will
be safe mode upto this much time..
> May I know usage of the following property...
> <property>
>   <name>dfs.blockreport.initialDelay</name>  <value>0</value>
>   <description>Delay for first block report in seconds.</description>
> </property>



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