Comment 4 for bug 1545101

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Armando Migliaccio (armando-migliaccio) wrote : Re: "TypeError: __init__() takes exactly 3 arguments (2 given)" in n-api logs for nova metadata api request

Results from run [1] still didn't yield any result. So that's my analysis: the api-paste file is not upgraded and that still contains an ec2 middleware (ec2faultwrap). This is the one that responds with 404, inline with what patch [3] does. That's the reason why we don't see the trace from Sean's patch [4]. I think the bug lies in grenade: if we get rid of ec2faultwrap we should get past the 404 error.