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  1. Hadoop YARN
  2. YARN-10720

YARN WebAppProxyServlet should support connection timeout to prevent proxy server from hanging



    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.4.0
    • Component/s: None
    • Labels:


      Following is proxy server show, too many connections from one client, this caused the proxy server hang, and the yarn web can't jump to web proxy.

      Following is the AM which is abnormal, but proxy server don't know it is abnormal already, so the connections can't be closed, we should add time out support in proxy server to prevent this. And one abnormal AM may cause hundreds even thousands of connections, it is very heavy.


      After i kill the abnormal AM, the proxy server become healthy. This case happened many times in our production clusters, our clusters are huge, and the abnormal AM will be existed in a regular case.


      I will add timeout supported in web proxy server in this jira.


      cc  Peter Bacsko Eric Badger Jim Brennan  Zhankun Tang  Eric Payne Andras Gyori  Benjamin Teke



        1. image-2021-03-29-14-04-33-776.png
          95 kB
          Qi Zhu
        2. image-2021-03-29-14-05-32-708.png
          182 kB
          Qi Zhu
        3. YARN-10720.001.patch
          11 kB
          Qi Zhu
        4. YARN-10720.002.patch
          12 kB
          Qi Zhu
        5. YARN-10720.003.patch
          12 kB
          Qi Zhu
        6. YARN-10720.004.patch
          11 kB
          Qi Zhu
        7. YARN-10720.005.patch
          11 kB
          Qi Zhu
        8. YARN-10720.006.patch
          11 kB
          Qi Zhu



            • Assignee:
              zhuqi Qi Zhu
              zhuqi Qi Zhu
            • Votes:
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