-Re: Hadoop tool-kit for monitoring
Konstantin Boudnik 2011-05-17, 22:16
Also, it seems like Ganglia would be very well complemented by Nagios
to allow you to monitor an overall health of your cluster.
Konstantin (Cos) Boudnik
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On Tue, May 17, 2011 at 15:15, Allen Wittenauer <[EMAIL PROTECTED]> wrote:
> On May 17, 2011, at 3:11 PM, Mark question wrote:
>> So what other memory consumption tools do you suggest? I don't want to do it
>> manually and dump statistics into file because IO will affect performance
> We watch memory with Ganglia. We also tune our systems such that a task will only take X amount. In other words, given an 8gb RAM:
> 1gb for the OS
> 1gb for the TT and DN
> 6gb for all tasks
> if we assume each task will take max 1gb, then we end up with 3 maps and 3 reducers.
> Keep in mind that the mem consumed is more than just JVM heap size.