When the snapshot removal task is run it first deletes all snapshots, and while it is doing that it gathers up all the maven-metadata.xml files that need updating. When this is done the progress reaches 99.99%.
After this, it then updates all the maven-metadata.xml files.
Progress isn't recorded for this last step. But on a slow file system it can take a long time to update the maven-metadata.xml files. This results in the task being stuck at 99.9% for a very long time, which makes it look broken.
- add logging to show progress when updating metadata