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  1. Core Server
  2. SERVER-52655

Mongo thread hangs intermittently.

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major - P3 Major - P3
    • None
    • 3.6.16
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    Description

      Hello,

        Mongod thread hangs on "recvmsg" system call because of this seeing very high load on replica set. I don't see any COLLSCAN in logs. When thread hangs read and write queue increases which is obvious. Not sure what is happening with this replicaset.

      Currently running 3.6.16 mongod on aws i3.16xlarge instance type. PRIMARY is failing over all the time whenever all the threads hangs. 

       

      Attachments

        1. gdb.txt
          14.53 MB
        2. metrics.2020-11-05T19-02-22Z-00000
          9.97 MB
        3. metrics.2020-11-05T23-13-52Z-00000
          9.97 MB
        4. metrics.2020-11-06T03-11-36Z-00000
          1.30 MB
        5. Screenshot 2020-11-06 at 11.47.04 AM.png
          Screenshot 2020-11-06 at 11.47.04 AM.png
          160 kB
        6. Screenshot 2020-11-06 at 12.01.46 PM.png
          Screenshot 2020-11-06 at 12.01.46 PM.png
          213 kB
        7. Screen Shot 2020-11-09 at 4.27.54 PM.png
          Screen Shot 2020-11-09 at 4.27.54 PM.png
          357 kB
        8. Screen Shot 2020-11-09 at 4.28.45 PM.png
          Screen Shot 2020-11-09 at 4.28.45 PM.png
          316 kB

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          People

            edwin.zhou@mongodb.com Edwin Zhou
            nvaidyanath@paloaltonetworks.com Nitesh Vaidyanath
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              Created:
              Updated:
              Resolved: