D-Net

still fixing error '// must be a nonempty array' #2750

fixing error '// must be a nonempty array' #2750

avoid compulsive indexing, we don't want to lock the db too much. Allow for date range reliver

avoid mongodb cursor to timeout upon long commits #2616

Implemented indexing field for MDStore using MDFormat profile

Added more logs to understand problem during the feeding of mdstore

import cleanup

checking operation list size to avoid 'IllegalArgumentException: state should be: writes is not an empty list' when flushing bulk writes

changed log

Added deletion of unuseful discarded collection on start