/opt/digiverso/, then the following folders can be emptied without problems:
abbyy/The files in this folder have been automatically converted to ALTO by the Goobi viewer Indexer since October 2017. The Goobi viewer itself only uses the ALTO. If the data was imported via Goobi workflow, it is available there and can be deleted in the Goobi viewer.
pdf/The PDF documents stored in this folder are delivered with a PDF download from the Goobi viewer. If there are no files here, (if configured) a PDF with optional text is generated from the image and optional ALTO file and delivered. The result is the same, only the delivery time may take longer. For the PDF files generated in this way, there is a cache under
cache/pdf.data, so that PDF documents that have been generated once are stored there up to a cache size of 100GB.
Masterbranch that is always stable and installable.
Developbranch, which contains new functions but cannot be completely stable yet.
feature_branches in which new functionality is developed. As soon as these are finished, they are merged into the Develop branch and from time to time the developments flow back from the Develop branch into the stable Master branch.
-SNAPSHOT. Based on the example above, the next development version would be 21.02-SNAPSHOT.