服务器应用突然不接受任何请求,重启应用又好了 - V2EX
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Ufo666
V2EX    Linux

服务器应用突然不接受任何请求,重启应用又好了

  •  1
     
  •   Ufo666 Jul 9, 2021 2733 views
    This topic created in 1795 days ago, the information mentioned may be changed or developed.
    今早 9:24 开始就发现没日志了,9:34 重启服务,恢复正常。
    短短 10 分钟,应用日志检查不出异常。
    linux 日志在这段时间是空白的,但是期间访问 linux 的其他 location 路径却可以进去。
    前几个月也出现过一次这样的问题。
    6 replies    2022-07-11 17:17:53 +08:00
    shanghai1943
        1
    shanghai1943  
       Jul 9, 2021
    你指的是 Linux 服务器不行还是部署在 Linux 机器上的应用不行?
    Oceanhime
        2
    Oceanhime  
       Jul 9, 2021
    确定 request 真的到达应用了吗?
    netdiyer
        3
    netdiyer  
       Jul 9, 2021
    一般程序有轮询或者被定时服务调用时,容易引发类似问题,
    是因为超时导致的请求阻塞。
    liuxu
        4
    liuxu  
       Jul 9, 2021
    deb 系的系统吗,是的话跟我讲下详细情况我帮你看看
    charlie21
        5
    charlie21  
       Jul 10, 2021
    该不会是磁盘空间满了罢
    Ufo666
        6
    Ufo666  
    OP
       Jul 11, 2022
    问题又复发了,真的很偶然。nginx 那边都有记录到请求,但是就是进不去应用,nginx 日志说的是 no live upstreams while connecting to upstream ,但是我看到有个几个 GET 接口又可以正常访问,所以我怀疑是死锁或者 mysql 锁或者网络阻塞,现在已经写了个小脚本定时去访问接口,访问不了就发邮件警告,不然每次都是匆匆重启,根本无法定位问题。
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