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  1. Core Server
  2. SERVER-18425

High Memory usage on Primary and secondary

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major - P3 Major - P3
    • None
    • 3.0.2
    • Performance
    • None
    • ALL

    Description

      We have upgraded to version 3.0.2 and experiencing very bad performance

      We are running replica set and the primary and one secondary is running at 90% Memory which is causing slow performance with our web application

      We have even created a new large box (replica secondary) within AWS and it is running at 90% memory

        PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                                            
      25036 root      20   0  131g  13g  11g S  2.7 90.7 108:21.05 mongod  
      

      When we restart the mongo process on the primary and trigger a failover to another secondary, performance improves. However, after a few hours the memory starts to rise and performance decreases.

      We are currently needing restart the mongod service on our preferred primary every 24 hours to maintain performance.

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            sam.kleinman Sam Kleinman (Inactive)
            andy@ditno.com Andy Walker
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