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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2020/03/18 08:23:32 UTC
[GitHub] [incubator-brpc] huchunjin opened a new issue #1067: 计数溢出导致程序退出
huchunjin opened a new issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067
**Describe the bug (描述bug)**
线上一个服务在跑4~5天左右，就会出现程序退出现象，最后的日志如下：
F0316 12:30:30.953776 393651 percentile.h:98] Check failed: _num_samples == _num_added (254 vs. 4294967280) _nu m_added=4294967280 rhs._num_added30 _num_samples=254 rhs._num_samples=30 SAMPLE_SIZE=254 size2=30
从日志看应该是计数溢出引起的
**To Reproduce (复现方法)**
**Expected behavior (期望行为)**
**Versions (各种版本)**
OS:
Compiler: centos 7.2
brpc: 0.9.5
protobuf: 2.6
**Additional context/screenshots (更多上下文/截图)**
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[GitHub] [incubator-brpc] jamesge edited a comment on issue #1067: 计数溢出导致程序退出
Posted by GitBox <gi...@apache.org>.
jamesge edited a comment on issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067#issuecomment-600950414
percentile需要被定期reset，这个reset是在采样线程里做的。如果在fork出来的进程中运行brpc代码，老版本可能不会创建这个线程，所以才建议用master试试
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[GitHub] [incubator-brpc] jamesge commented on issue #1067: 计数溢出导致程序退出
Posted by GitBox <gi...@apache.org>.
jamesge commented on issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067#issuecomment-600513298
这是在fork产生的进程中么？
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[GitHub] [incubator-brpc] jamesge commented on issue #1067: 计数溢出导致程序退出
Posted by GitBox <gi...@apache.org>.
jamesge commented on issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067#issuecomment-600950414
percentile需要被定期reset，这个reset是在采样线程里做的
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[GitHub] [incubator-brpc] ryankeke commented on issue #1067: 计数溢出导致程序退出
Posted by GitBox <gi...@apache.org>.
ryankeke commented on issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067#issuecomment-601205634
谢谢！我试下。
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[GitHub] [incubator-brpc] ryankeke commented on issue #1067: 计数溢出导致程序退出
Posted by GitBox <gi...@apache.org>.
ryankeke commented on issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067#issuecomment-600684465
能说下为什么采用线程没起来可能会引起这个问题？
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[GitHub] [incubator-brpc] jamesge commented on issue #1067: 计数溢出导致程序退出
Posted by GitBox <gi...@apache.org>.
jamesge commented on issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067#issuecomment-600581177
> > 这是在fork产生的进程中么？
>
> 不是的
这个可能是采样的线程没起来，和fork关系比较密切。一个方法是你们把brpc版本替换为master最新版，看看能否复现问题
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[GitHub] [incubator-brpc] ryankeke commented on issue #1067: 计数溢出导致程序退出
Posted by GitBox <gi...@apache.org>.
ryankeke commented on issue #1067: 计数溢出导致程序退出
URL: https://github.com/apache/incubator-brpc/issues/1067#issuecomment-600568080
> 这是在fork产生的进程中么？
不是的
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