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Gracefully handle interrupted launches where cluster_instances is not defined #183

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nchammas opened this issue Jan 31, 2017 · 0 comments
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@nchammas
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@nchammas nchammas commented Jan 31, 2017

If a cluster launch is interrupted before AWS can even return a list of instances, we hit a part of the code where cluster_instances is not defined. We should protect against that.

Additionally, when Flintrock comes across a broken cluster (e.g. missing tags) left behind by an interrupted launch, we should:

  • Display a warning from inside _get_cluster_master_slaves().
  • Return all the untagged instances as slaves.

Triggered by the discussion with @douglaz in #179.

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