As announced on the Opencast roadmap (see 1), SWITCH contributes an extension to the ingest service that allows ingestion of partial tracks with individual start and end dates.
The main use case is to allow capture agents to ingest partial tracks, i.e. multiple pieces of a single track that can be glued together to form an actual track. The sum of the partial tracks is not necessarily a complete track, i.e. it is possible that gaps are present. Such gaps could occur, for example, if a capture agent is restarted by a watch dog during recording, resulting in multiple partial tracks.
This ticket is about the implementation of the required post-processing facilities: The workflow operation handler partial-import.
The ticket "Extend ingest service by partial upload" (https://opencast.jira.com/browse/MH-10984?jql=text%20~%20%22partial%22) will add the required extensions to the ingest service itself.