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<div class="moz-cite-prefix">On 01/22/2015 07:48 PM, John Sanda
wrote:<br>
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<div class="">On Feb 16, 2015, at 3:48 PM, John Mazzitelli
<<a moz-do-not-send="true" href="mailto:mazz@redhat.com"
class="">mazz@redhat.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class=""><span style="font-family: Helvetica; font-size:
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float: none; display: inline !important;" class="">I will
add the following to the discussion:</span><br
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<br style="font-family: Helvetica; font-size: 12px;
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<span style="font-family: Helvetica; font-size: 12px;
font-style: normal; font-variant: normal; font-weight:
normal; letter-spacing: normal; line-height: normal;
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word-spacing: 0px; -webkit-text-stroke-width: 0px; float:
none; display: inline !important;" class="">If past
history with customers of JON/users of RHQ/salespeople is
any indication, we will get requests to support collecting
availability every second (if not every sub-second) even
AFTER telling people, documenting, and shouting from the
mountaintop that we are not a realtime profiler. So, do we
have the throughput/infrastructure that can support one
"UP" datapoint coming in every minute for N resources. Do
we want to support this?</span><br style="font-family:
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<div>It seems like this should be a question of scale. Do we
provide the scalability both in terms of storage and in terms
of processing data to deal with those scenarios? Our strategy
around scalability is a topic in its own right, but I do think
it is relevant to some of the questions being raised in this
thread.</div>
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<br>
It should be reasonable ;)<br>
IMHO typically one would be happy with a check every 20s/30s or even
a minute if the cost is "low", ie: the cost of the monitoring
infrastructure is a small fraction of the infrastructure itself.<br>
<br>
We need to scale horizontally for processing data and storage
(adding Cassandra nodes ?), reaching 1s support won't come without
additional infrastructure cost. For sub-second support, I would
question the need to store that information, I don't think we should
look into this now.<br>
<br>
Thomas<br>
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