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 It is used on D4Science Infrastructure for collecting and send all the records coming from MongoDB to the D4Science accounting framework. In D4Science, this library works in conjuction with the storage-manager gCube libraries, realizing a distribuited system of store and accounting data: the storage-manager libraries send the record in form of file and metadata to MongoDB, MongoDB collects them, the storageTrigger sniffs the new record from mongodb and send the related metadata informations to the accounting framework, in batch mode. In this way, the record is sent, stored and accounted in a distribuited mode. The storage-trigger library typically run on a delayed secondary member of a MongoDB cluster with no election priority  avoiding, in this way, performace degradation on MongoDB primary node. 
 
 
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