校招 未知部门 / 后端开发 / 一面
[面试日期] 2025-10-15 [面试时长] 未知
[学校背景] 复旦大学 | 985 [学历背景] 未知
[发布人] 面试之星官方收录
<h2>拼多多后端开发一面</h2>
<p>自我介绍+项目</p><p></p><p>1.为什么链表长度≥8转红黑树?树化阈值为何是6退化?</p><p></p><p>2.商品秒杀缓存使用ConcurrentHashMap的注意事项</p><p></p><p>3.大促期间如何设置ThreadPoolExecutor参数?</p><p></p><p>4.如何解决商品详情页服务的FuLGC问题?</p><p></p><p>5.用Redis实现库存扣减锁,如何解决锁超时问题?</p><p></p><p>6.ThreadLocal内存泄漏问题如何避免?</p><p></p><p>7.如何防止恶意请求击穿缓存?拼多多的购物车服务选择AP还是CP?为什么?</p><p></p><p>8.AOS中为什么用CLH队列而不用普通链表?</p><p></p><p>9.线程池核心参数设置规则?美团动态调整方案?</p><p></p><p>10.ConcurrentHashMap的size()方法为何不精确?替代方案?</p><p></p><p>11.如何用CAS实现一个无锁栈?ABA问题如何规避?</p><p></p><p>12.CompletableFuture如何实现多个异步任务依赖执行?</p><p></p><p>13.反问<a href="https://gw-c.nowcoder.com/api/sparta/jump/link?link=https%3A%2F%2Fgw-c.nowcoder.com%2Fapi%2Fsparta%2Fjump%2Flink%3Flink%3Dhttps%253A%252F%252Fwww.nowcoder.com%252Fcreation%252Fsubject%252Fc121d108a0d94e04b8821f14c3acadd5">#发面经攒人品#</a><a href="https://gw-c.nowcoder.com/api/sparta/jump/link?link=https%3A%2F%2Fgw-c.nowcoder.com%2Fapi%2Fsparta%2Fjump%2Flink%3Flink%3Dhttps%253A%252F%252Fwww.nowcoder.com%252Fcreation%252Fsubject%252Feb05ef0c3aad4981af85e1f84c8d3db3">#牛客AI配图神器#</a></p><p><img src="https://uploadfiles.nowcoder.com/images/20250920/666552922_1758365387832/D2B5CA33BD970F64A6301FA75AE2EB22"></p><p></p><p>【拼多多集团-PDD校园招聘】内推链接:<a href="https://gw-c.nowcoder.com/api/sparta/jump/link?link=https%3A%2F%2Fgw-c.nowcoder.com%2Fapi%2Fsparta%2Fjump%2Flink%3Flink%3Dhttps%253A%252F%252Fgw-c.nowcoder.com%252Fapi%252Fsparta%252Fjump%252Flink%253Flink%253Dhttps%25253A%25252F%25252Fcareers.pddglobalhr.com%25252Fcampus%25252Fgrad%25253Ft%25253DQJ4GiRNH6A">https://careers.pddglobalhr.com/campus/grad?t=QJ4GiRNH6A</a>,内推码:QJ4GiRNH6A。期待你的加入!我们一起,无拼不青春!(通过此链接投递计入内推,内推简历优先筛选~)</p><p></p>
AI 推荐面试题
