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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2020/05/27 05:06:06 UTC

[GitHub] [incubator-brpc] zhijunfu opened a new issue #1125: Contention profiler 用不了？

zhijunfu opened a new issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125


   **Describe the bug (描述bug)**
   
   Contention profiler 用不了
   
   **To Reproduce (复现方法)**
   
   
   **Expected behavior (期望行为)**
   
   contention profiling 结果能够通过内置http服务的contention页面展示
   
   **Versions (各种版本)**
   OS: linux centos 7
   Compiler:
   brpc: 最新master和 0.9.7都试过
   protobuf:
   
   **Additional context/screenshots (更多上下文/截图)**
   
   contention页面显示如下：
   
   [20200527.125758.contention]
   Using local file ./bazel-bin/asynchronous_echo_c++_server.
   Using local file ./rpc_data/profiling/ff9a9eed9e62f8e0e337d6234c5692ad/20200527.125758.contention.
   
   ![image](https://user-images.githubusercontent.com/37800433/82979895-c270fd00-a01a-11ea-8d75-4b78f6849025.png)
   


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[GitHub] [incubator-brpc] zhijunfu commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
zhijunfu commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-645728694


   > > 那可能还不太一样，我这边遇到过两个问题：
   > > > 一个是C++的程序，是因为ignore了SIGTERM，错误现象和你的一样，后来解决掉了；
   > > > 另外一个是java里面load C++的so，然后报了这个issue里面的错误，还没有找到原因
   > 
   > 我这边没有用到java。c++的话你说的ignore了sigterm是值没有自己处理sigterm吗？
   
   oops，我说错了，是ignore了SIG_CHLD，就是设置了SIG_IGN，因为现在brpc用的popen和子进程交互，如果ignore了这个signal的话，pclose的时候会失败


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[GitHub] [incubator-brpc] jamesge commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
jamesge commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-634533467


   有流量吗？


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[GitHub] [incubator-brpc] zhijunfu commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
zhijunfu commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-645397373


   不依赖的，你这个错误可能是 代码里面ignore了SIGTERM，我之前遇到过同样的问题。
    
   > 使用这个依赖libprofile么？我这里也用不了，不过网页上错误如下：
   > Fail to execute `perl ./rpc_data/profiling/pprof.pl --dot ./ts ./rpc_data/profiling/180f54b113b35acab63e2f8d1cd0d898/20200617.181201.contention 2>&1 ', No child processes
   > 
   > 生成的.contention文件大约2MB左右
   
   


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[GitHub] [incubator-brpc] kof02guy commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
kof02guy commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-645286189


   > > > 有流量吗？
   > > 
   > > 
   > > 有的。生成的contention文件也比较小，只有十几k，感觉是没数据。这种该怎么排查呢？
   > 
   > 那可能就是没有contention
   
   使用这个依赖libprofile么？我这里也用不了，不过网页上错误如下：
   Fail to execute `perl ./rpc_data/profiling/pprof.pl --dot ./ts ./rpc_data/profiling/180f54b113b35acab63e2f8d1cd0d898/20200617.181201.contention 2>&1 ', No child processes
   
   生成的.contention文件大约2MB左右


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[GitHub] [incubator-brpc] dongdongwcpp commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
dongdongwcpp commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-979692259


   @kof02guy 后来解决了吗，我也有遇到，不过我是用dummy server


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[GitHub] [incubator-brpc] jamesge commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
jamesge commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-634574156


   > > 有流量吗？
   > 
   > 有的。生成的contention文件也比较小，只有十几k，感觉是没数据。这种该怎么排查呢？
   
   那可能就是没有contention


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[GitHub] [incubator-brpc] kof02guy commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
kof02guy commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-645712800


   > 不依赖的，你这个错误可能是 代码里面ignore了SIGTERM，我之前遇到过同样的问题。
   > 
   > > 使用这个依赖libprofile么？我这里也用不了，不过网页上错误如下：
   > > Fail to execute `perl ./rpc_data/profiling/pprof.pl --dot ./ts ./rpc_data/profiling/180f54b113b35acab63e2f8d1cd0d898/20200617.181201.contention 2>&1 ', No child processes
   > > 生成的.contention文件大约2MB左右
   
   SIGTERM不是正常的退出SIGNAL么，这个一般都会被截获然后实现优雅退出的逻辑吧，我们也是的。我这边看到生成的contention文件里面有内容，里面还有各个数字以及相应的内存地址，addr2line是可以正常转换为具体的代码行数的，但是不是图，所以没法看
   我理解应该是在转换为图的时候出了什么问题


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[GitHub] [incubator-brpc] zhijunfu commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
zhijunfu commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-645722085


   那可能还不太一样，我这边遇到过两个问题：
   >  一个是C++的程序，是因为ignore了SIGTERM，错误现象和你的一样，后来解决掉了；
   >  另外一个是java里面load C++的so，然后报了这个issue里面的错误，还没有找到原因


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[GitHub] [incubator-brpc] kof02guy commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
kof02guy commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-645728114


   > 那可能还不太一样，我这边遇到过两个问题：
   > 
   > > 一个是C++的程序，是因为ignore了SIGTERM，错误现象和你的一样，后来解决掉了；
   > > 另外一个是java里面load C++的so，然后报了这个issue里面的错误，还没有找到原因
   
   我这边没有用到java。c++的话你说的ignore了sigterm是值没有自己处理sigterm吗？


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[GitHub] [incubator-brpc] zhijunfu commented on issue #1125: Contention profiler 用不了？

Posted by GitBox <gi...@apache.org>.
zhijunfu commented on issue #1125:
URL: https://github.com/apache/incubator-brpc/issues/1125#issuecomment-634534882


   > 有流量吗？
   
   有的。生成的contention文件也比较小，只有十几k，感觉是没数据。这种该怎么排查呢？


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