Troubleshooting and tricks¶
Increasing the debug level¶
By default, the logging level of AiiDA is minimal to avoid filling logfiles.
Only warnings and errors are logged (to the
~/.aiida/daemon/log/aiida_daemon.log file), while info and debug
messages are discarded.
If you are experiencing a problem, you can change the default minimum logging level of AiiDA messages (and celery messages – celery is the library that we use to manage the daemon process) using, on the command line, the two following commands:
verdi devel setproperty logging.celery_loglevel DEBUG verdi devel setproperty logging.aiida_loglevel DEBUG
After rebooting the daemon (
verdi daemon restart), the number of messages
logged will increase significantly and may help in understanding
the source of the problem.
In the command above, you can use a different level than
The list of the levels and their order is the same of the standard python
When the problem is solved, we suggest to bring back the default logging level, using the two commands:
verdi devel delproperty logging.celery_loglevel verdi devel delproperty logging.aiida_loglevel
to avoid to fill the logfiles.
Tips to ease the life of the hard drive (for large databases)¶
Those tips are useful when your database is very large, i.e. several hundreds of thousands of nodes and workflows or more. With such large databases the hard drive may be constantly working and the computer slowed down a lot. Below are some solutions to take care of the most typical reasons.
The backup of the repository takes an extensively long time if it is done through a standard rsync or backup software, since it contains as many folders as the number of nodes plus the number of workflows (and each folder can contain many files!). A solution is to use instead the incremental backup described in the repository backup section.
mlocate cron job¶
Under typical Linux distributions, there is a cron job (called
updatedb.mlocate) running every day to update a database of files and
folders – this is to be used by the
locate command. This might become
problematic since the repository contains many folders and
will be scanned everyday. The net effect is a hard drive almost constantly
To avoid this issue, edit as root the file
and put in
PRUNEPATHS the name of the repository folder.