Dollar Universe stops suddenly with the following message in the log of the Dollar Universe Node:
u_invalide_fichier | Invalid index /dollar_universe_folder/filename.idx, stopping...
This behavior is by design to prevent problems in production.
When an index file is considered as corrupted by Dollar Universe, the IO Server will stop properly in order to avoid side-effects.
If Dollar Universe configuration is by default, at next startup an offline reorganization will be triggered that will fix the index file.
Restart Dollar Universe, an offline reorganization will be launched and will fix the corrupted index file.
In case automatic reorganization is disabled, launch unireorg before starting Dollar Universe.