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  1. Core Server
  2. SERVER-40122

mongod generates inconsistent logs for journalctl during start up

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    • Type: Icon: Bug Bug
    • Resolution: Works as Designed
    • Priority: Icon: Minor - P4 Minor - P4
    • None
    • Affects Version/s: 4.0.6
    • Component/s: Logging
    • Labels:
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      1 on centos7 `yum install mongodb-org-server-4.0.6`

      2 run `rm /etc/mongod.conf`

      3 run `systemctl start mongod`

      4 run `systemctl status mongod`

      5 `Error reading config file: Permission denied` not always shown.They only appear if log entry has `_SYSTEMD_UNIT=mongod.service`

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      1 on centos7 `yum install mongodb-org-server-4.0.6` 2 run `rm /etc/mongod.conf` 3 run `systemctl start mongod` 4 run `systemctl status mongod` 5 `Error reading config file: Permission denied` not always shown.They only appear if log entry has `_SYSTEMD_UNIT=mongod.service`
    • Dev Tools 2019-04-08, Dev Tools 2019-04-22, Dev Tools 2019-06-17

      When I try to start mongod on a centos server using  `systemctl start mongod`, mongod generates different format of logs for journalctl.
      e.g.Sometimes I got _SYSTEMD_UNIT in logs sometimes I didn't.
      use `journalctl -o verbose` to see following logs

      Thu 2019-03-14 08:56:25.564626 CST [s=f346de34a07a4ae4864c0b0d59247e13;i=380;b=8d1b546e8233453eb811aad9c83b
      PRIORITY=6
      _SYSTEMD_SLICE=system.slice
      _BOOT_ID=8d1b546e8233453eb811aad9c83b60d0
      _MACHINE_ID=5e6521e7a19a4ceaa05ce7b123bdf8b2
      _HOSTNAME=localhost.localdomain
      SYSLOG_FACILITY=3
      _TRANSPORT=stdout
      _SELINUX_CONTEXT=system_u:system_r:init_t:s0
      _CAP_EFFECTIVE=0
      _STREAM_ID=4b9a978cc3dc46a0b498c309478cc055
      SYSLOG_IDENTIFIER=mongod
      MESSAGE=Error reading config file: Permission denied
      _PID=941
      _UID=998
      _GID=995
      _COMM=mongod
      _SYSTEMD_CGROUP=/system.slice/mongod.service
      _SYSTEMD_UNIT=mongod.service

      or

      Thu 2019-03-14 09:52:28.999450 CST [s=f346de34a07a4ae4864c0b0d59247e13;i=3c2;b=8d1b546e8233453eb811aad9c83b
      PRIORITY=6
      _BOOT_ID=8d1b546e8233453eb811aad9c83b60d0
      _MACHINE_ID=5e6521e7a19a4ceaa05ce7b123bdf8b2
      _HOSTNAME=localhost.localdomain
      SYSLOG_FACILITY=3
      _SYSTEMD_CGROUP=/
      _TRANSPORT=stdout
      _SELINUX_CONTEXT=system_u:system_r:init_t:s0
      _CAP_EFFECTIVE=0
      SYSLOG_IDENTIFIER=mongod
      MESSAGE=Error reading config file: Permission denied
      _UID=998
      _GID=995
      _COMM=mongod
      _STREAM_ID=b21afa0dd80f44dca15370450b1be552
      _PID=1644

      and only those with `_SYSTEMD_UNIT=mongod.service` can be seen by `journalctl -u mongod` or 'systemctl status mongod'

            Assignee:
            mathew.robinson@mongodb.com Mathew Robinson (Inactive)
            Reporter:
            jiahongchao Jia Hongchao
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              Created:
              Updated:
              Resolved: