JDBC throttle not working

[Vaggelis Kasapis]

Hello everyone,
I have encountered a weird problem with apereo 5.2. I managed to log all audits to a mysql database. Then i am using the configuration properties below to check for throttling but nothing happens. It just logging these in the database. 2 records for every request. No throttle log on console too. Note that i have tried multiple combinations of threshold and rangeSeconds and i am choosing to user update for the ddlAuto because all other settings are dropping the table and never recreates it. Does anyone knows how to help me with this problem?
Thanks in advance.

| 19 | 83.235.21.183 | exa...@hotmail.gr | AUTHENTICATION_SUCCESS | CAS | Tue Mar 06 2018 08:55:38 GMT+0200 (GTB Standard Time) | 46.4.248.168 | Supplied credentials: [exa...@hotmail.gr] |

| 20 | 83.235.21.183 | exa...@hotmail.gr | FAILED_LOGIN_ATTEMPT | CAS | Tue Mar 06 2018 08:55:38 GMT+0200 (GTB Standard Time) | 46.4.248.168 | exa...@hotmail.gr

cas.authn.throttle.jdbc.auditQuery=SELECT AUD_DATE FROM COM_AUDIT_TRAIL WHERE AUD_CLIENT_IP = ? AND AUD_USER = ? AND AUD_ACTION = ? AND APPLIC_CD = ? AND AUD_DATE >= ? ORDER BY AUD_DATE DESC

cas.authn.throttle.jdbc.url=jdbc:mysql:/example/example

cas.authn.throttle.jdbc.dialect=org.hibernate.dialect.MySQLDialect

cas.authn.throttle.jdbc.user=.....

cas.authn.throttle.jdbc.ddlAuto=update

cas.authn.throttle.jdbc.password=....

cas.authn.throttle.jdbc.driverClass=com.mysql.jdbc.Driver

cas.authn.throttle.jdbc.pool.suspension=true

cas.authn.throttle.jdbc.pool.minSize=6

cas.authn.throttle.jdbc.pool.maxSize=18

cas.authn.throttle.jdbc.pool.maxWait=2000

cas.authn.throttle.usernameParameter=username

cas.authn.throttle.schedule.startDelay=10000

cas.authn.throttle.schedule.repeatInterval=20000

cas.authn.throttle.appcode=CAS

cas.authn.throttle.failure.threshold=1

cas.authn.throttle.failure.code=AUTHENTICATION_FAILED

cas.authn.throttle.failure.rangeSeconds=10

cas.rest.throttler=authenticationThrottle

cas.audit.jdbc.url=jdbc:mysql://example/example

cas.audit.jdbc.dialect=org.hibernate.dialect.MySQLDialect

cas.audit.jdbc.driverClass=com.mysql.jdbc.Driver

cas.audit.jdbc.user=....

cas.audit.jdbc.password=....

cas.audit.jdbc.ddlAuto=update