IT-SDC : Support for Distributed Computing

Site Status Board UIand metric aggregation

Ivan DzhunovIT/SDC/MI

11th October 2013

SSB UI Ivan Dzhunov 2IT-SDC

Contents

SSB metric SAM metric -> SSB metric Aggregation of SSB metrics SSB views SSB UI

Aggregated metrics and their views

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SSB UI Ivan Dzhunov 3IT-SDC

SSB Metric

Measurement of site/service performance

Result of functional test Defined by a VO Number or string(status)

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SSB UI Ivan Dzhunov 4IT-SDC

SAM metric translated into SSB metric

SSB metric name : SAM metric name + FQANorg.atlas.SRM-VODel (_atlas_Role_production)

Instance : service flavour + hostnameSRMv2 srm-atlas.gridpp.rl.ac.ukCREAM-CE cream-ge-5-kit.gridka.de

Status OK, CRITICAL, WARNING, UNKNOWN

Color : mapping from Statusgreen, red, yellow, blue

URL to metric output, composed by hostname, timestamp and SAM metric name

metricOutput?host= srm-atlas.gridpp.rl.ac.uk&time=2013-10-09T15:28:39Z&metric=org.atlas.SRM-VODel

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SSB UI Ivan Dzhunov 5IT-SDC

Aggregation of SSB metrics

Two types: Horizontal: Ins1 (M1…Mn) Ins1 (Mp)

Aggregate SSB metrics into new metric (same instances)

Vertical: M1 (Ins1…Insn) Insp (M2) Aggregate SSB metric results for several instances

into metric result for one new instance

Operations over metric results “and” (R1…Rn) - worst status/color

“or” (R1…Rn) - best status/color

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SSB View

Logically related metrics are combined into views Container for metrics

Doesn’t have its own data

Defined by a VO

VO can defined as many views as needed

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SSB Index page

Overall status of sites in CMS_CRITICAL profile

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SSB Expanded table

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How do we know how to aggregate?

Profile configuration Horizontal aggregation

algorithm * : “and” operation + : “or” operation

Vertical aggregation service_site_metric

Fed from VO feeds

Metric instances Service type flavour Metric name FQAN

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(expand this column) link ? If you see it, this is an aggregated SSB metric

Click on the link to go to the view of ‘child’ metrics

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How aggregation was done here?

SSB <VO>_topo metrics fed by VO feeds

Vertically by topology, applying ‘OR’ operation at the service flavour level

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12IT-SDC

Continue to expand towards metric results

11 October 2013 SSB UI Ivan Dzhunov

Horizontally aggregated metric results with “AND” operation to get service flavour status

SSB UI Ivan Dzhunov 13IT-SDC

SSB Expanded table features

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SSB UI Ivan Dzhunov 14IT-SDC

More features : filtering

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SSB UI Ivan Dzhunov 15IT-SDC

Give it a try

http://wlcg-mon.cern.ch

Aggregation explainedhttps://docs.google.com/document/d/1gLIgKq-Jb4ViKz05g_fry9p1k3VTtCwyMW1Hwlq1-S0/edit?usp=sharing

Thanks to Jacobo and Pablo!

11 October 2013