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From Jason Venner <ja...@attributor.com>
Subject Re: Hadoop and Ganglia Meterics
Date Thu, 24 Jul 2008 14:43:42 GMT
Check out

https://issues.apache.org/jira/browse/HADOOP-3422


Joe Williams wrote:
> I have been attempting to get Hadoop metrics in Ganliga and have been 
> unsuccessful thus far. I have see this thread 
> (http://mail-archives.apache.org/mod_mbox/hadoop-core-user/200712.mbox/raw/%3C475E4FFA.7050007@yahoo-inc.com%3E/)

> but it didn't help much.
>
> I have setup my properties file like so:
>
>> [root@hadoop-head-node01 current]# cat conf/hadoop-metrics.properties
>> dfs.class=org.apache.hadoop.metrics.ganglia.GangliaContext
>> dfs.period=10
>> dfs.servers=127.0.0.1:8649
>>
>> mapred.class=org.apache.hadoop.metrics.ganglia.GangliaContext
>> mapred.period=10
>> mapred.servers=127.0.0.1:8649
>
> And if I 'telnet 127.0.0.1  8649' I receive the Ganglia XML metrics 
> output without any hadoop specific metrics:
>
>> [root@hadoop-head-node01 current]# telnet 127.0.0.1  8649
>> Trying 127.0.0.1...
>> Connected to localhost (127.0.0.1).
>> Escape character is '^]'.
>> ?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
>> !DOCTYPE GANGLIA_XML [
>>   !ELEMENT GANGLIA_XML (GRID|CLUSTER|HOST)*>
>>       !ATTLIST GANGLIA_XML VERSION CDATA #REQUIRED>
>>       !ATTLIST GANGLIA_XML SOURCE CDATA #REQUIRED>
>> --SNIP--
>
> Is there more I need to do to get the metrics to show up in this 
> output, am I doing something incorrectly? Do I need to have a gmetric 
> script run in a cron to update the stats? If so, does anyone have a 
> hadoop specific example of this?
>
> Any info would be helpful.
>
> Thanks.
> -Joe
>
>
>
>

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