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  1. Core Server
  2. SERVER-14588

prealloc of datafiles not on by default in 2.6

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical - P2
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Storage
    • Labels:
      None
    • Backwards Compatibility:
      Minor Change
    • Operating System:
      ALL
    • Steps To Reproduce:
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    • Sprint:
      Server 2.7.4, Server 2.7.5, Server 2.7.6

      Description

      Mac OSX, starting up mongod from commend line (either no parameters, or passing an empty config file (old format)), using a new db and inserting inserting a single document.

      In 2.6.3, I get the following:

      drwxr-xr-x   2 thomasboyd  wheel         68 Jul 16 15:03 _tmp
      drwxr-xr-x   3 thomasboyd  wheel        102 Jul 16 15:02 journal
      -rw-------   1 thomasboyd  wheel   67108864 Jul 16 15:03 local.0
      -rw-------   1 thomasboyd  wheel   16777216 Jul 16 15:03 local.ns
      -rwxr-xr-x   1 thomasboyd  wheel          5 Jul 16 15:02 mongod.lock
      -rw-------   1 thomasboyd  wheel   67108864 Jul 16 14:50 test.0
      -rw-------   1 thomasboyd  wheel   16777216 Jul 16 14:50 test.ns

      In 2.4.10, I get the following (note two data files for test DB):

      drwxr-xr-x   2 thomasboyd  wheel         68 Jul 16 14:57 _tmp
      drwxr-xr-x   2 thomasboyd  wheel         68 Jul 16 15:01 journal
      -rw-------   1 thomasboyd  wheel   67108864 Jul 16 14:57 local.0
      -rw-------   1 thomasboyd  wheel   16777216 Jul 16 14:57 local.ns
      -rwxr-xr-x   1 thomasboyd  wheel          0 Jul 16 15:01 mongod.lock
      -rw-------   1 thomasboyd  wheel   67108864 Jul 16 14:57 test.0
      -rw-------   1 thomasboyd  wheel  134217728 Jul 16 14:57 test.1
      -rw-------   1 thomasboyd  wheel   16777216 Jul 16 14:57 test.ns

      Other than for changes around the way no/prealloc is set in YAML files, I could not find any explanation for this change of behavior in release notes or jira tickets.

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              Assignee:
              matt.kangas Matt Kangas
              Reporter:
              thomas.boyd Thomas Boyd
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                Created:
                Updated:
                Resolved: