Thousands of San Francisco, San Mateo and San Jose hotel workers went on strike Sunday morning as part of a national action, the Unite Here Local 2 union said. Lizzy Tapia, president of Unite Here Local 2, said that 2,080 workers at the Grand Hyatt SFO, Grand Hyatt Union Square, Hilton Union Square, Westin St. Francis and Palace Hotel went on strike Sunday. In San Jose, 380 workers at the DoubleTree by Hilton and Signia by Hilton went on strike Sunday, a Unite Here Local 19 representative said Sunday morning.