Simon Huggins has proposed merging lp:~shufgy/graphite/graphite into lp:graphite.
Requested reviews: graphite-dev (graphite-dev) For more details, see: https://code.launchpad.net/~shufgy/graphite/graphite/+merge/100088 Add new series function to allow people to graph a series based on criteria in another series. -- https://code.launchpad.net/~shufgy/graphite/graphite/+merge/100088 Your team graphite-dev is requested to review the proposed merge of lp:~shufgy/graphite/graphite into lp:graphite.
=== modified file 'webapp/graphite/render/functions.py' --- webapp/graphite/render/functions.py 2012-03-25 04:54:03 +0000 +++ webapp/graphite/render/functions.py 2012-03-30 09:27:15 +0000 @@ -23,6 +23,7 @@ from graphite.logger import log from graphite.render.datalib import fetchData, TimeSeries, timestamp from graphite.render.attime import parseTimeOffset +from graphite.render.evaluator import evaluateTarget from graphite.events import models @@ -170,6 +171,27 @@ return [newSeries[name] for name in newNames] +def useSeriesAbove(requestContext, seriesList, min, search, replace): + """ + Given one series, compares it against min and if it is more than min, applies the regular expression against the metric to plot a related metric + + e.g. given ganglia.metric1.reqs,10,'reqs','time' it will plot the response time metric only when the corresponding request/s metric is > 10 + + .. code-block:: none + + &target=useSeriesAbove(ganglia.metric1.reqs,10,"reqs","time") + """ + newSeries = [] + + for series in seriesList: + newname = re.sub(search, replace, series.name) + if max(series) > min: + n = evaluateTarget(requestContext, newname) + if n is not None and len(n) > 0: + newSeries.append(n[0]) + + return newSeries + def averageSeriesWithWildcards(requestContext, seriesList, *position): #XXX """ Call averageSeries after inserting wildcards at the given position(s). @@ -2333,6 +2355,7 @@ 'limit' : limit, 'sortByMaxima' : sortByMaxima, 'sortByMinima' : sortByMinima, + 'useSeriesAbove': useSeriesAbove, # Data Filter functions 'removeAbovePercentile' : removeAbovePercentile,
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