# derby.infolog.append

#### Function

Specifies whether to append to or overwrite (delete and recreate) the derby.log file when the Derby engine is started. The derby.log file is used to record errors and other information. This information can be important when debugging problems within a system.

You can set this property even if the file does not yet exist; Derby creates the file.

#### Default

False.

By default, the file is deleted and then re-created.

#### Example

    derby.infolog.append=true

#### Scope

system-wide

#### Dynamic or static

This property is static; if you change it while Derby is running, the change does not take effect until you reboot.

Parent topic: Derby properties
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