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  1. MongoDB Database Tools
  2. TOOLS-698

Mongodump 3.0.1 very slow compared to mongodump 2.6.9

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    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Minor - P4 Minor - P4
    • 3.0.3, 3.1.2
    • Affects Version/s: 3.0.1
    • Component/s: mongodump
    • None
    • Environment:
      Ubuntu Server 14.04.2 LTS x64, VMWare esx 5.5. 1Database filesystem is xfs on linux LVM. 1 CPU, 4G RAM
    • Kernel Tools Iteration 3.1.2

      mongodump v3.0.1 takes approximately 3 days to do an export of my mongodb db of approximately 17GB. When I run mongodump v2.6.9 on the same server and database the export completes in a little over 2 minutes.

      checking the mongostat I can see that on 2.6.9 the network out values are generally in the 20-60m range. see attached mongostat.dmp2.6.9.txt

      mongostat on the 3.0.1 the network out is constant 10k - 11k. see attached mongostat.dmp3.0.1.txt

        1. mongodb.currentop.txt
          27 kB
          Paul Gaynor [X]
        2. mongodb.server.log.txt
          8 kB
          Paul Gaynor [X]
        3. mongodump.301.log1.txt
          599 kB
          Paul Gaynor [X]
        4. mongostat.dmp2.6.9.txt
          6 kB
          Paul Gaynor [X]
        5. mongostat.dmp3.0.1.txt
          6 kB
          Paul Gaynor [X]

            Assignee:
            mikeo@mongodb.com Michael O'Brien
            Reporter:
            Pablosquared Paul Gaynor [X]
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              Created:
              Updated:
              Resolved: