If you are on probation to the court for a felony then there is a high chance that you will be arrested for a probation violation by your probation officer. In most cases where a person is on felony probation they are taken into custody if the probation officer believes that they have violated any of terms of probation. They often are not entitled to bail and will remain in custody pending a probation violation hearing. The judge can then decide to keep them in county jail or could send them to state prison depending upon the nature of the probation violation and what crime they were initially convicted of.
If you are on probation for a misdemeanor offense, then you likely do not have a probation officer. If that is the case, then if you have violated your probation and the court finds out about it, you will receive a letter to appear at a probation violation hearing. At the probation violation hearing the court will have the power to take you into custody and to order you to serve a jail sentence.