Deprecated Functionality

Functionality deprecated by the Merritt Preservation System.

Database Fields that are no longer actively used

inv_nodes

• media_type
• node_form
• node_protocol
• verify_on_read and verify_on_write
  • now controlled via the node table yaml
• source_node
• target_node

inv_versions

• note

inv_collections

• read_privilege
  • LDAP now controls this
• write_privilege
  • LDAP now controls this
• download_privilege
  • LDAP now controls this
• storage_tier
  • Not used. Node table yaml is definitive.
• These values were likely intended to help choose the nodes in use

Database Tables, Limited use

• inv_duas
• inv_dublinkernels - limited support in the Merritt UI, but this is part of the intended system design

Database Enums, Limited use

• inv_nodes.media_connectivity only cloud is supported
• inv_files.source (consumer) - only system and producer are used
• inv_nodes.access_mode (some values) - off-line not currently used
• inv_nodes.access_protocol (some values) - currently all protocols are S3 but might change
• inv_nodes.external_provider - in reality, everything is using an S3 cloud api

Merritt Admin Objects

• Collection: only used to partially populate inv_collections
• Owner: only used to minimally populate inv_owners
• SLA: not used

Merritt System Files

• mrt-object-map.ttl

Microservices

• Merritt Express
• OAI
• Sword

Libraries

• Zoo
• ZK Queue

Other retired repositories

• tomcat8_catalina_base
• mrt-store-admin
• merritt-manifest
• Jenkins Functions

Microservice Functionality

• Storage
  • Cloudhost Remote Storage (Pairtree)
    • Not actively used, but it can be useful
  • DFLAT storage no longer used (UNM)
  • Virtual Node Support
  • Support for non-S3 remote storage (open stack at SDSC)
  • Remote storage servers (not under CDL control)
  • RDF/turtle file support in Merritt System files
• UI
  • File download (now presigned retrieval)
  • Object download (now presigned retrieval)
  • Large object (email) delivery (now presigned retrieval)
• Ingest
  • HandlerDataupHack (Used to support DataUP)
  • HandlerFixity (Deprecated by Audit service)
  • HandlerCharacterize (Currently not used. Initially, JHOVE2 was used)
  • HandlerCallback (Currently, not used)
  • RDF/turtle file support in Merritt System files