标签：ntc update ogg == 注意 err type close date
@Override
@Transactional
public String getCustomerId() {
// return String.valueOf(getSequenceId(SEQ_CUSTOMER_ITEM_CODE.seqName));
String type=SEQ_CUSTOMER_ITEM_CODE.seqName;
if (!sequenceValueMap.containsKey(type)) {
SequenceDO sequenceDO = sequenceDOMapper.getBySeqNameForUpdate(type);
LOGGER.info(Thread.currentThread().getName()+"===="+sequenceDO.getCurrentValue());
sequenceValueMap.put(type, sequenceDO);
//更新值
int value = sequenceDO.getCurrentValue();
sequenceDOMapper.updateSequenceValue(type, sequenceDO.getCurrentValue() + sequenceDO.getStep());
sequenceDO.setCurrentValue(value + 1);
LOGGER.info(Thread.currentThread().getName()+"----------->CurrentSequenceType:[{}],value:[{}]", type, sequenceDO.getCurrentValue());
return sequenceDO.getCurrentValue()+"";
} else {
SequenceDO sequenceDO = sequenceValueMap.get(type);
int value = sequenceDO.getCurrentValue() + 1;
if (value % sequenceDO.getStep() == 0) {
//更新值
SequenceDO temp = sequenceDOMapper.getBySeqNameForUpdate(type);
LOGGER.info(Thread.currentThread().getName()+"----------->CurrentSequenceType:[{}],value:[{}]", type, temp.getCurrentValue());
sequenceDOMapper.updateSequenceValue(type, temp.getCurrentValue() + temp.getStep());
sequenceValueMap.put(type, temp);
} else {
sequenceDO.setCurrentValue(value);
}
return value+"";
}
}
使用行级锁 一定要注意 加上事务控制 MYSQL 行级锁才会起效，才会以排他的形式 访问
-12-26 20:03:20.562 INFO 39993---[Thread-22] c.s.m.s.i.SequenceServiceImpl - Thread-22====100198439 2019-12-26 20:03:20.572 INFO 39993---[Thread-22] c.s.m.s.i.SequenceServiceImpl - Thread-22----------->CurrentSequenceType:[sequenceCustomerInfo],value:[100198440] 2019-12-26 20:03:20.577 INFO 39993---[ZkClient-EventThread-23-127.0.0.1:2181] o.I.z.ZkEventThread - Terminate ZkClient event thread. 2019-12-26 20:03:20.580 INFO 39993---[Thread-23] c.s.m.s.i.SequenceServiceImpl - Thread-23====100198440 2019-12-26 20:03:20.581 INFO 39993---[DubboShutdownHook] o.a.z.ZooKeeper - Session: 0x100048539830052 closed 2019-12-26 20:03:20.581 INFO 39993---[main-EventThread] o.a.z.ClientCnxn - EventThread shut down 100198440 2019-12-26 20:03:20.589 INFO 39993---[Thread-23] c.s.m.s.i.SequenceServiceImpl - Thread-23----------->CurrentSequenceType:[sequenceCustomerInfo],value:[100198441]
标签：ntc update ogg == 注意 err type close date
原文地址：https://www.cnblogs.com/zhangfengshi/p/12104147.html
