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 _validate(self, master_id, validated_inst_id):
utils.check_server_status(validated_inst_id,expected_task=utils.tasks.InstanceTasks.NONE,
type=DBInstanceType.READ_REPLI,
expected_svr_status=utils.ServiceStatuses.RUNNING,
deleted=False,timeout=300)
utils.check_mysql_adminuser(validated_inst_id)
utils.check_vip(master_id)
vip_id = utils.get_vip_id(validated_inst_id)
utils.check_vip(validated_inst_id,vip_id=vip_id)
utils.check_rpl_delay(validated_inst_id)
master_ip = utils.check_allocate_ip(utils.get_builtin_instance(master_id).server)
rr_ip = utils.check_allocate_ip(utils.get_builtin_instance(validated_inst_id).server)
utils.check_rpl_consist(master_id, [validated_inst_id],master_ip,[rr_ip])
utils.check_rpl_topo_rr(self.group_id)
def validate(self):
utils.check_server_status(self.inst_id, expected_task=utils.tasks.InstanceTasks.NONE,
type=DBInstanceType.MASTER,
expected_svr_status=utils.ServiceStatuses.RUNNING,
deleted=False, timeout=600)
utils.check_server_status(self.dbslave_id, expected_task=utils.tasks.InstanceTasks.NONE,
type=DBInstanceType.STANDBY,
expected_svr_status=utils.ServiceStatuses.RUNNING,
deleted=False, timeout=600)
rr_items = InstanceGroupItem.get_by_gid_type(utils.get_context(), self.group_id, DBInstanceType.READ_REPLI, deleted = False)
slave_ids = []
for rr in rr_items:
slave_ids.append(rr.instance_id)
slave_ids.append(self.dbslave_id)
utils.check_mysql_adminuser(self.inst_id)
utils.check_mysql_adminuser(self.dbslave_id)
for _id in [self.inst_id, self.dbslave_id]:
utils.check_mysql_is_running(self.inst_id)
utils.check_vip(self.inst_id, vip_id=self.vip_id)
self.backup_id = utils.check_backup(self.group_id)
utils.check_backup_status(self.backup_id)
utils.check_backup_path(self.backup_id)
for slave_id in slave_ids:
utils.check_rpl_delay(slave_id)
master_inst = utils.get_builtin_instance(self.inst_id)
slave_inst = utils.get_builtin_instance(self.dbslave_id)
master_ip = utils.check_allocate_ip(master_inst.server)
slave_ip = utils.check_allocate_ip(slave_inst.server)
LOG.info("master_ip:%s slave_ip:%s" % (master_ip, slave_ip))
utils.check_rpl_consist(self.inst_id, slave_ids, master_ip, [slave_ip])
utils.check_rpl_topo_ha(self.group_id)
