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Version 1.2

  • Less MQ connection sockets: one federated queue, one shovel (and added message type to distinguish the messages)
  • MQ Heartbeat are reintroduced
  • ingest and verify are one service: Since we were loading the data in memory, we also decrypt, checksum and move it to a staging area
  • 2 instances of a backup microservice are added. Obviously, this is for illustration purpose only, each LocalEGA site might already have their own backup system. Nevertheless, a trust/confirmation is sent to CentralEGA.
  • Database pipeline segregated from the main final database
  • A save2db service is introduced at the end of the pipeline to save information in the long-term storage database (not the pipeline DB). It can handle also handle the dataset mappings (as a job of type mapping).
  • Correlation IDs are used for each inbox upload/rename/deletion. However, when several message types are emitted by CentralEGA, the same correlation ID might be reused. Therefore, we introduce a job_id, handled by the database. The latter generates new job id if necessary (detecting if repeated messages).
  • No leaked information from the LocalEGAs to CentralEGA. We only use checksums and public information
  • Support for S3 has been factorized out from the code. The code is smaller and simpler. In order to support an S3-backed storage, the system administrator can for example use S3-fuse filesystem
  • The pipeline database and mq docker images are migrated back into this repo

Version 1.1