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Custom metrics #24

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msimonin opened this issue Jul 7, 2013 · 0 comments

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msimonin commented Jul 7, 2013

GetMetricsInLC branch enables users to use custom metrics.
One driver based on ganglia is currently being implemented.

gmond must be running on your LCs nodes.
in snooze_node.cfg you can specify custom metrics to fetch :

localController.metrics.hostname = localhost
localController.metrics.port = 8649
localController.metrics.published = cpu_user
localController.metrics.interval = 1000
localController.metrics.numberOfMetricsEntries = 5

localController.metrics.thresholds.cpu_user = 0,30,70

Metrics will be transfered to the assigned GM. Overload will be detected by the LC by setting the flag UNSTABLE in the LocalControllerDataTransporter.
unstableOverLoadPolicy will be called in case of overload.

# Underload relocation policy
groupManagerScheduler.relocation.unstableOverloadPolicy = TestUnstable

In unstableOverloadPolicy, calling getMetricData() on a LocalControllerDescription will return the custom metric hashmap...

NB: this is experimental features, bug report are welcome :)

M

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msimonin mentioned this issue

LC monitoring logic #17

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