| title | Logging |
|---|---|
| sidebar_position | 70 |
Stellar Core sends logs to standard error and stellar-core.log by default, configurable with the LOG_FILE_PATH field.
Log messages are classified by progressive priority levels: TRACE, DEBUG, INFO, WARNING, ERROR, and FATAL. The logging system only emits those messages at or above its configured logging level.
Log messages at different priority levels can be color-coded on standard error by setting LOG_COLOR=true in the config file. By default they are not color-coded.
The log level can be controlled by configuration, the --ll command-line flag, or adjusted dynamically by administrative (HTTP) commands. To do so, run:
sudo -u stellar stellar-core --conf /etc/stellar/stellar-core.cfg http-command "ll?level=debug"while your node is running.
Log levels can also be adjusted on a partition-by-partition basis through the administrative interface. For example the history system can be set to DEBUG-level logging by running:
sudo -u stellar stellar-core --conf /etc/stellar/stellar-core.cfg http-command "ll?level=debug&partition=history"Against a running system.
:::info
Please take a look at the HTTP Commands reference for more information about the partitions available for use in the ll command.
:::
The default log level is INFO, which is moderately verbose and should emit progress messages every few seconds under normal operation.