Log

Default log

By default, log files are created in {ESPO_ROOT}/data/logs/ directory.

Parameters

In data/config-internal.php:

'logger' => [
  'level' => 'NOTICE', // DEBUG, INFO, NOTICE, WARNING, ERROR
  'maxFileNumber' => 30,
  'printTrace' => true, // to print an exception backtrace,
  'sql' => true, // log SQL queries
  'databaseHandler' => true, // the log will be available in the UI
  'databaseHandlerLevel' => 'NOTICE', // overrides the level for the database handler
],

Trace printing

Prints a backtrace when an exception is occurred. Note that in some cases an exception is caught and handled within the application, the trace won't be printed in this case.

Warning

It is not recommended to enable trace printing on the production environment, as it may expose sensitive data to the log.

Admin UI

As of v8.3.

To make log records available in the admin UI, set databaseHandler parameter to true.

Note that some log entries may be not available from the UI. For example, those that happened during upgrade or before database connection was established.

SQL queries

As of v7.4.

Note

Not to be enabled on production.

If the parameter sql is set to true, all executed SQL queries will be printed to the log. Requires INFO or DEBUG level.

If sql is set to true, and the log level is NOTICE or higher, than only failed queries will be logged. As of v8.2.

Handlers

As of v6.1.

EspoCRM uses Monolog library for logging. The library is shipped with a set of handlers. There is the ability to specify which handlers to use in Espo.

In data/config.php:

'logger' => [
  'level' => 'NOTICE',
  'handlerList' => [
    [
      'className' => 'Espo\\Core\\Log\\Handler\\EspoRotatingFileHandler',
      'params' => [
        'filename' => 'data/logs/espo.log',
      ],
      'level' => 'NOTICE',
      'formatter' => [
        'className' => 'Monolog\\Formatter\\LineFormatter',
        'params' => [
          'dateFormat' => 'Y-m-d H:i:s',
        ],
      ],
    ],
    [
      'loaderClassName' => 'Espo\\Core\\Log\\EspoRotatingFileHandlerLoader',
      'params' => [
        'filename' => 'data/logs/test-warning.log',
      ],
      'level' => 'WARNING',
    ],
  ],
],

Note that it's possible to have multiple handlers.

It's possible to specify either a handler class name or loader class name. A loader class instantiates a handler class. This allows to initialize constructor parameters for a handler. It can be helpful if you need to pass some object to the handler constructor. A loader class must implement Espo\Core\Log\HandlerLoader interface. It's possible to pass dependencies (via DI mechanism) to the loader.

Note

By specifying handlerList in the config, the default handler stops from being used.

You can find the list of handlers supported by Monolog here.