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HUAWEI CLOUD Stack 6.5.0 Troubleshooting Guide 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Node Faults

Node Faults

Troubleshooting Service Status Exceptions After Node Restart

Symptom
  • The service is not started after the node is restarted.
  • ManageOne Deployment Portal fails to be logged in.
Procedure
  1. Use PuTTY to log in to the faulty node as the sopuser user.

    The default password is D4I$awOD7k.

  2. Run the following command to switch to the ossadm user:

    su - ossadm

    The default password is Changeme_123.

  3. Run the following commands to start the microservices:

    cd /opt/oss/manager/agent/bin

    . engr_profile.sh

    ./ipmc_adm -cmd startnode

    Check whether the command output contains failed.

    • If it does not, the task execution is successful.
    • If it does, contact technical support for assistance.

Troubleshooting the System That Enters Maintenance Mode Due to Disk Damage

Symptom

During disk mounting, the system automatically enters the maintenance mode.

If information similar to the following is displayed, the disk is damaged:

[3.116335]systemd-fsck[597]:/dev/mapper/oss_vg-optlog_vol:Inodes that were part of a corrupted orphan linked list found.
[3.118363]systemd-fsck[597]:/dev/mapper/oss_vg-optlog_vol:UNEXPECTED INCONSISTENCY;RUN fsck MANUALLY.
[3.119977]systemd-fsck[597]:/dev/mapper/oss_vg-optlog_vol:(i.e.,without -a or -p options)
NOTE:

/dev/mapper/oss_vg-optlog_vol indicates the disk name. Replace it with the actual one.

Possible Causes

The VM is powered off.

Procedure
  1. After the system enters the maintenance mode, the system automatically logs in as the root user.
  2. Run the following command to unmount the disk:

    umount Disk name

  3. If the following information is displayed, run the following commands to stop the running processes, and then unmount the disk again:

    [root@EulerOS-BaseTemplate ~]# umount /dev/mapper/oss_vg-optlog_vol
    umount: /opt: target is busy.
    (In some cases useful info about processes that use 
     the device is found by lsof(8) or fuser(1))

    fuser -ck /opt

    umount Disk name

    NOTE:

    opt is the directory name.

  4. Run the following command to repair the disk:

    fsck.ext4 -f -y Disk name

  5. Run the following command to restart the VM:

    reboot

  6. Run the following command to log out of the root user:

    exit

OS Is in Read-Only State

Symptom

The OS state changes to read-only when the command is executed.

Possible Causes
  • The VM is powered off.
  • The OS file or the disk is damaged.
  • The device storage space is full.
Procedure
  1. Restart the OS. The environment may be automatically restored.

    If the following information is displayed during the restoration, a disk attachment error occurs:
    [3.116335]systemd-fsck[597]:/dev/mapper/oss_vg-optlog_vol:Inodes that were part of a corrupted orphan linked list found.
    [3.118363]systemd-fsck[597]:/dev/mapper/oss_vg-optlog_vol:UNEXPECTED INCONSISTENCY;RUN fsck MANUALLY.
    [3.119977]systemd-fsck[597]:/dev/mapper/oss_vg-optlog_vol:(i.e.,without -a or -p options)

  2. Manually restore the OS by referring to section Troubleshooting the System That Enters Maintenance Mode Due to Disk Damage.
  3. If you fail to manually restore the OS, press Ctrl+D to forcibly log in to the OS.
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Updated: 2019-06-01

Document ID: EDOC1100062375

Views: 1141

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