When ethdrain runs it could call to ES to find out the metadata regarding failed blocks and blocks that are already stored in the index, then build a list from there. If there is no index available, it can then assume it is a first run and proceed from there.
When ethdrain runs it could call to ES to find out the metadata regarding failed blocks and blocks that are already stored in the index, then build a list from there. If there is no index available, it can then assume it is a first run and proceed from there.