# derby.authentication.native.passwordLifetimeThreshold

The derby.authentication.native.passwordLifetimeThreshold property specifies the threshold that triggers a connection-time warning that a password is about to expire.

The threshold must be a DOUBLE value greater than 0.0.

To avoid locking out the super-user, the password of the database owner of a credentials database never expires.

A warning is raised when a user logs in and the remaining lifetime of that user's password is less than this proportion of the maximum password lifetime. That is, Derby raises a warning when the remaining lifetime of a password is less than `(derby.authentication.native.passwordLifetimeThreshold * derby.authentication.native.passwordLifetimeMillis)`.

To set the lifetime of the password, use the derby.authentication.native.passwordLifetimeMillis property.

## Syntax

    derby.authentication.native.passwordLifetimeThreshold=proportion

## Default

0.125 (1/8).

## Example

    -- system-wide property
    derby.authentication.native.passwordLifetimeThreshold=0.2

    -- database-level property
    CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY(
        'derby.authentication.native.passwordLifetimeThreshold', '0.2');

## Dynamic or static

Static. For system-wide properties, you must reboot Derby for the change to take effect. For database-wide properties, you must reboot the database for the change to take effect.

Parent topic: Derby properties
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