If you are accessing the Arcadia UI and hit a disk error like below it’s usually because there’s not more disk space left.
- Check the filesystem disk space and free up space as needed.
- Check the permission on the sqlite file located at /var/lib/arcadia
- Run the command mentioned here to clear the arcviz cache directory:
Issue when downgrading from Arcadia 4.3+ to 4.2 and lower: Unsupported pickle protocol: 4
Operational> Error: disk I/O error
In the arcviz.INFO logs you might see errors like this:
File "/opt/arcadia/lib/venv/lib64/python3.6/site-packages/diskcache/core.py", line 597, in _execute_with_retry return sql(statement, *args, **kwargs) sqlite3.OperationalError: disk I/O error