[BUG] The holtWintersAberration() function fails with an IndexError exception

[mux]

Describe the bug I'm trying to use the holtWintersAberration() function to detect anomalies, but it fails with a python exception. Here is the output I get from Grafana:

Traceback (most recent call last): File "/opt/graphite/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 132, in get_response response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/opt/graphite/webapp/graphite/errors.py", line 101, in new_f return f(*args, **kwargs)
File "/opt/graphite/webapp/graphite/render/views.py", line 130, in renderView data.extend(evaluateTarget(requestContext, targets))
File "/opt/graphite/webapp/graphite/render/evaluator.py", line 34, in evaluateTarget result = evaluateTokens(requestContext, target) File "/opt/graphite/webapp/graphite/render/evaluator.py", line 67, in evaluateTokens return evaluateTokens(requestContext, tokens.expression, replacements)
File "/opt/graphite/webapp/graphite/render/evaluator.py", line 102, in evaluateTokens args = [evaluateTokens(requestContext, arg, replacements) for arg in rawArgs]
File "/opt/graphite/webapp/graphite/render/evaluator.py", line 67, in evaluateTokens return evaluateTokens(requestContext, tokens.expression, replacements)
File "/opt/graphite/webapp/graphite/render/evaluator.py", line 128, in evaluateTokens return func(requestContext, *args, **kwargs) File "/opt/graphite/webapp/graphite/render/functions.py", line 4151, in holtWintersAberration elif upperBand[i] is not None and series[i] > upperBand[i]: IndexError: list index out of range

To Reproduce This has happened for every metric I tried this with, but I'm expecting that other people would see different values.

Expected behavior I expected the graph to be plotted.

Screenshots If applicable, add screenshots to help explain your problem.

Environment (please complete the following information):

• OS flavor: Ubuntu 16.04
• Graphite-web version 1.2.0-dev
• Django 1.8.19 / Python 2.7.12
• Setup from OS packages

[mux]

For some reason this works with bootstrapInterval='3d'.

[mux]

Also, this doesn't happen on the holtWintersConfidenceBands() function with the exact same parameters.

[stale[bot]]

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