I am not sure about the count exactly, is there a way to find the count of 
total metrics, but I can tell you is, I am collecting metrics from total of 
around 150 nodes which has around 50-55 hadoop cluster nodes. I am collecting 
all the default metrics from each node as well.

Ramesh

> On May 29, 2015, at 7:03 PM, ganglia-developers-requ...@lists.sourceforge.net 
> wrote:
> 
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> Today's Topics:
> 
>   1. Re: Ganglia server is running under high server load and high
>      Disk IO (Vladimir Vuksan)
>   2. about regression test for ganglia (linu...@linux.vnet.ibm.com)
>   3. Re: [Ganglia-general] Ganglia-Web 3.7.0 released - includes
>      security fixes (Vladimir Vuksan)
>   4. Re: [Ganglia-general] Ganglia-Web 3.7.0 released - includes
>      security fixes (linu...@linux.vnet.ibm.com)
>   5. Re: [Ganglia-general] Ganglia-Web 3.7.0 released - includes
>      security fixes (Vladimir Vuksan)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 22 May 2015 10:25:42 -0400
> From: Vladimir Vuksan <vli...@veus.hr>
> Subject: Re: [Ganglia-developers] Ganglia server is running under high
>       server load and high Disk IO
> To: ganglia-developers@lists.sourceforge.net
> Message-ID: <555f3c66.10...@veus.hr>
> Content-Type: text/plain; charset=windows-1252; format=flowed
> 
> 
> How many total metrics are you keeping track of ? Also what Ganglia 
> version is this ? 40% wait IO seems kind of excessive especially with SSD.
> 
> Vladimir
> 
> 05/22/2015 u 02:50 AM, Ramesh Kumar je napisao/la:
>> Hello,
>> 
>> My ganglia server is running under high load and showing too much IO. It 
>> stops showing webpage. Just the blank page. However apache and gmetad is 
>> running. I have to restart the gmetad service, then it start showing the web 
>> page again. It shows iowait time over 40 all the time and server load around 
>> 3. I am graphing around 130-150 servers. It contains around 50 hadoop nodes. 
>> I am not using any RRDcache or memcached on my server. Please suggest me if 
>> there are any ganglia optimization tips or documentation available.
>> 
>> My server configuration is:
>> 16GB RAM
>> 8 CPU's
>> 600GB SSD Hard Drive with 3000 IO/sec support
>> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 27 May 2015 03:48:52 -0400
> From: linu...@linux.vnet.ibm.com
> Subject: [Ganglia-developers] about regression test for ganglia
> To: Vladimir Vuksan <vli...@veus.hr>
> Cc: ganglia-developers@lists.sourceforge.net
> Message-ID:
>       <20150527034852.horde.5hqym3mnvvvy3nwroyrp...@ltc.linux.ibm.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes
> 
> 
> Vladmir and others:
> 
> When we patched the upstream code, how to do the regression test? I  
> noticed there's a test dir, but dont know how to use that. Is there  
> any doc or wiki about this?
> 
> Thanks,
> -jack
> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Thu, 28 May 2015 16:57:55 -0400
> From: Vladimir Vuksan <vli...@veus.hr>
> Subject: Re: [Ganglia-developers] [Ganglia-general] Ganglia-Web 3.7.0
>       released - includes security fixes
> To: Cristovao Cordeiro <cristovao.corde...@cern.ch>,
>       "ganglia-developers@lists.sourceforge.net"
>       <ganglia-developers@lists.sourceforge.net>,     Ganglia
>       <ganglia-gene...@lists.sourceforge.net>
> Message-ID: <55678153.7040...@veus.hr>
> Content-Type: text/plain; charset="us-ascii"
> 
> An HTML attachment was scrubbed...
> 
> ------------------------------
> 
> Message: 4
> Date: Fri, 29 May 2015 05:16:41 -0400
> From: linu...@linux.vnet.ibm.com
> Subject: Re: [Ganglia-developers] [Ganglia-general] Ganglia-Web 3.7.0
>       released - includes security fixes
> To: ganglia-developers@lists.sourceforge.net, Ganglia
>       <ganglia-gene...@lists.sourceforge.net>
> Message-ID:
>       <20150529051641.horde.ujd2xaz9z1arsoz1lgng...@ltc.linux.ibm.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes
> 
> Vladimir and all:
> 
> Since it's not easy to setup the env of ganglia webfrontend, I tried  
> to add a trouble-shooting part for the wikipage of ganglia-web as  
> following:
> 
> == Trouble shooting ==
> 
> * you need to copy `/var/www/ganglia2/apache.conf` (Ubuntu/Debian) or  
> `/var/www/html/ganglia2/apache.conf` (CentOS/RHEL) to  
> `/etc/apache2/sites-enabled`.
> * In most cases, you need to modify the above apache.conf to make sure  
> the alias /ganglia refers to `/var/www/ganglia2` (Ubuntu/Debian) or  
> `/var/www/html/gangla2` (CentOS/RHEL) .
> * In most cases, you need to modify  
> `/var/www/ganglia2/conf_default.php` (Ubuntu/Debian) or  
> `/var/www/html/ganglia2` (CentOS/RHEL) to make sure `gweb_confdir`  
> refers to the directory where the directories of `conf` and `dwoo`  
> locate in, such as `/var/lib/ganglia-web` or `/var/lib/ganglia`.
> * Make sure you have the dir of rrds under `gmetad_root`.
> * Make sure the above rrds dir should be owned by the user of `nobody`.
> 
> If you guys think this is not bad, how could I push it into the  
> wikipage? Seems that's not the same process as to submit a patch to  
> the sourcecode.
> 
> Thank you,
> -jack
> 
> 
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Fri, 29 May 2015 09:33:39 -0400
> From: Vladimir Vuksan <vli...@veus.hr>
> Subject: Re: [Ganglia-developers] [Ganglia-general] Ganglia-Web 3.7.0
>       released - includes security fixes
> To: Cristovao Cordeiro <cristovao.corde...@cern.ch>,
>       "ganglia-developers@lists.sourceforge.net"
>       <ganglia-developers@lists.sourceforge.net>
> Message-ID: <55686ab3.8080...@veus.hr>
> Content-Type: text/plain; charset="us-ascii"
> 
> An HTML attachment was scrubbed...
> 
> ------------------------------
> 
> ------------------------------------------------------------------------------
> 
> 
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> 
> _______________________________________________
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> 
> End of Ganglia-developers Digest, Vol 103, Issue 3
> **************************************************


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