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From Nick Bailey <n...@datastax.com>
Subject Re: Does OpsCenter have to be running all the time in order to collect the cluster stats?
Date Thu, 15 Dec 2011 18:18:07 GMT
No, currently there is not failover mechanism built into OpsCenter.
The agents could be reconfigured to talk to a different machine but
this would be a manual process and involve additional configuration
changes.

On Thu, Dec 15, 2011 at 12:13 PM,  <mike.li@thomsonreuters.com> wrote:
> Thank Nick for your fast response.
>
> So if the OpsCenter is down, then the stats for the cluster won't be collected. Is there
any safe-guard mechanism, like a duplicate OpsCenter on second machine to monitor the cluster
in case of single OpsCenter failure?
>
> Mike
>
> -----Original Message-----
> From: Nick Bailey [mailto:nick@datastax.com]
> Sent: Thursday, December 15, 2011 11:43 AM
> To: user@cassandra.apache.org
> Subject: Re: Does OpsCenter have to be running all the time in order to collect the cluster
stats?
>
> The OpsCenter agents report metric data to the main OpsCenter process
> which processes it and writes data into the cluster. So yes, the main
> OpsCenter process needs to be running in order for metrics to be
> stored in the cluster.
>
> -Nick
>
> On Thu, Dec 15, 2011 at 9:43 AM,  <mike.li@thomsonreuters.com> wrote:
>> Hi,
>>
>>
>>
>> I have one question about OpsCeneter: does it have to be running all the
>> time in order to collect and store the metrics on each node within the
>> cluster? Who does the job to write metrics on each node, the agent on the
>> node or OpsCenter?
>>
>>
>>
>> Thanks,
>>
>> Mike
>>
>>
>
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