Github user justinleet commented on the issue:
https://github.com/apache/metron/pull/624
The latest commit moves to a VM instead of using a container during the
Travis build. Testing on local Travis, this seemed to produce more consistent
results that didn't have the same wide variance. Several runs clustered inside
the 25m-30m mark, and I haven't seen one outside that range.
It still needs to be run several times to make sure there won't be issues
with the main Apache infra.
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