分布式锁redis，

分布式锁：

setnx key vel;返回1加锁成功，0说明已经加锁，

设置过去时间，sepire key time;

去重：场景一样，返回1说明已处理。

 

提升性能，不同账户不同锁：

private static final Map<Long, ReentrantLock> TASK_LOCK_MAP = new HashMap<>();

public Lock getLock(Long taskId) {
  return TASK_LOCK_MAP.getOrDefault(taskId, new ReentrantLock());
}

public void removeLock(Long taskId) {
  TASK_LOCK_MAP.remove(taskId);
}

 

Lock lock = evaluateTaskLock.getLock(task.getId());
try {
  lock.lock();
  manualTaskTimePointMGService.addPortraitTimePoint(drawEvaluateTaskId, TimePointType.PAUSE);
} catch (Exception e) {
  log.error("暂停异常, taskId: {}", drawEvaluateTaskId, e);
} finally {
  lock.unlock();
}