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How can I compare instances of mongrel on one graph?
My mongrel queue length seems to jump up during certain periods of time. The application throughput graph on the controllers page shows the mongrel queue length (per mongrel instance per minute?) during a specified range of time.
What I'm interested in is looking into the comparison of one or two metrics of the instances of mongrel on a host (or application) for a specific range of time. I could select each instance one by one, but that leaves it up to me to compare the numbers myself, and it becomes hard to all 16 at a glance.
What I'm hoping is to verify all my instances are responding equally to incoming requests, and ensure that no one mongrel is getting slammed while another mongrel is sitting idle. If this comparison graph exists in RPM, it wasn't immediately obvious to me.
It would suck if I have to buy an even higher plan just to see this comparison.
What I'm interested in is looking into the comparison of one or two metrics of the instances of mongrel on a host (or application) for a specific range of time. I could select each instance one by one, but that leaves it up to me to compare the numbers myself, and it becomes hard to all 16 at a glance.
What I'm hoping is to verify all my instances are responding equally to incoming requests, and ensure that no one mongrel is getting slammed while another mongrel is sitting idle. If this comparison graph exists in RPM, it wasn't immediately obvious to me.
It would suck if I have to buy an even higher plan just to see this comparison.
I’m wishful that this feature exists on my plan level.
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Inappropriate?While you can't see this comparison on an action-by-action basis, you can get the information you want via the "Cluster Breakout" chart, available for Bronze accounts.
In that view you will see a plot of various metrics, including response time, for each of the mongrels in your selected application or host. You can identify mongrels which have dropped out of the load balancer or which are getting an uneven load.
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