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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6363) HBaseConfiguration can carry a main method that dumps XML output for debug purposes
Date Mon, 16 Jul 2012 21:50:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13415689#comment-13415689
] 

Jonathan Hsieh commented on HBASE-6363:
---------------------------------------

I actually like the idea -- If it is the same method that dumps data out as http://<hmaster>:xxx/dump
it also dumps out the file the different settings come from.  

{code}
<property><!--Loaded from core-default.xml--><name>hadoop.security.group.mapping.ldap.search.attr.group.name</name><value>cn</value></property>
<property><!--Loaded from mapred-default.xml--><name>mapred.merge.recordsBeforeProgress</name><value>10000</value></property>
<property><!--Loaded from mapred-site.xml--><name>mapred.job.tracker.http.address</name><value>c1514.hal.cloudera.com:56030</value></property>
<property><!--Loaded from hdfs-default.xml--><name>dfs.namenode.replication.min</name><value>1</value></property>
<property><!--Loaded from hbase-default.xml--><name>hbase.master.logcleaner.ttl</name><value>600000</value></property>
<property><!--Loaded from mapred-default.xml--><name>mapred.compress.map.output</name><value>false</value></property>
...
{code}
                
> HBaseConfiguration can carry a main method that dumps XML output for debug purposes
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-6363
>                 URL: https://issues.apache.org/jira/browse/HBASE-6363
>             Project: HBase
>          Issue Type: Improvement
>          Components: util
>    Affects Versions: 0.94.0
>            Reporter: Harsh J
>            Priority: Trivial
>              Labels: conf, newbie, noob
>
> Just like the Configuration class carries a main() method in it, that simply loads itself
and writes XML out to System.out, HBaseConfiguration can use the same kinda method.
> That way we can do "hbase org.apache.hadoop.….HBaseConfiguration" to get an Xml dump
of things HBaseConfiguration has properly loaded. Nifty in checking app classpaths sometimes.

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