def resize_ha(self, instance_id=None):
self.inst_id = instance_id
if not self.inst_id:
self.inst_id = utils.get_instance_id_bytenant(DBInstanceType.MASTER)
_inst = utils.get_instance(self.inst_id, deleted=0)
self.group_id = _inst.group_id
master = InstanceGroupItem.get_by_gid_type(utils.get_context(), self.group_id, DBInstanceType.MASTER)
standby = InstanceGroupItem.get_by_gid_type(utils.get_context(), self.group_id, DBInstanceType.STANDBY)
if master:
old_master_inst_id = master.instance_id
if standby:
old_standy_inst_id = standby.instance_id
old_master_inst = utils.get_builtin_instance(old_master_inst_id)
old_flavor_id = old_master_inst.flavor_id
old_virtual_instance_id = old_master_inst.virtual_instance_id
self.inst_id = old_master_inst.id
if old_flavor_id not in ['1', '2', '3', '4']:
raise Exception("It is not support to do resizing based on flavor id: %s, supported flavor_ids should be in (1,2,3,4)" % (old_flavor_id))
flavor = str(int(old_flavor_id) + 1)
LOG.info("old flavor : %s, new flavor : %s" % (old_flavor_id, flavor))
utils.resize_flavor_byclient(self.inst_id, flavor)
inst_ids = utils.check_resize_status(self.group_id)
if len(inst_ids) >= 2:
utils.check_rpl_delay(inst_ids[0])
utils.check_rpl_delay(inst_ids[1])
import time
time.sleep(60)
new_master = utils.get_builtin_instance(old_virtual_instance_id)
new_standby = InstanceGroupItem.get_by_gid_type(utils.get_context(), new_master.group_id, DBInstanceType.STANDBY)
if new_master.virtual_instance_id == old_virtual_instance_id and \
new_master.id != old_master_inst.id:
self.inst_id = new_master.id
self.dbslave_id = new_standby.instance_id
self.vip_id = utils.get_vip_id(self.inst_id)
else:
raise Exception("resize for ha failed,new_master.virtual_instance_id %s,"
" old_virtual_instance_id %s, new_master.id %s,"
" old_master_inst.id %s, new_standby_id %s,"
" old_standy_inst_id %s" % (
new_master.virtual_instance_id, old_virtual_instance_id,
new_master.id, old_master_inst.id,
new_standby.instance_id, old_standy_inst_id))
self.validate()
else:
raise Exception("the num of instance_id should be equal or greater than two after resize HA ")
def resize(self):
old_rr_inst_id = self._get_rid()
rr_instance = utils.get_builtin_instance(old_rr_inst_id)
old_flavor_id = rr_instance.flavor_id
old_virtual_inst_id = rr_instance.virtual_instance_id
flavor = old_flavor_id + 1 if old_flavor_id < 5 else 5
_ret_inst = utils.resize_flavor_byclient(old_rr_inst_id,flavor)
utils.check_server_status(old_virtual_inst_id, type = DBInstanceType.READ_REPLI,
expected_task = utils.tasks.InstanceTasks.RESIZING)
insts = utils.check_resize_status(self.group_id)
new_rr_id = insts[0]
utils.check_server_status(new_rr_id, type = DBInstanceType.READ_REPLI,
expected_task = utils.tasks.InstanceTasks.NONE,
expected_svr_status = utils.ServiceStatuses.RUNNING,
deleted = False, timeout = 120)
new_rr_instance = utils.get_instance(new_rr_id, deleted = False)
new_flavor_id = new_rr_instance.flavor_id
assert old_flavor_id != new_flavor_id
self._validate(self.master_id, new_rr_id)
