Yes
Great, you’re covered under California law.
Great, although you are not covered under Oakland’s Rent Control, you ARE covered under California’s Tenant Protection Act.
Under the Tenant Protection Act your landlord:
1) Cannot raise your rent more than twice a year.
2) Cannot raise your rent above 5% + CPI (consumer Price index) or 10% (whichever is lower).
Now, let’s see if this increase is legal or not.