Red Hat Summit Red Hat SummitSuporteConsoleDesenvolvedoresComeçar um testeContato

Este conteúdo não está disponível no idioma selecionado.

4.3. GFS2 File System Hangs and Requires Reboot of All Nodes

If your GFS2 file system hangs and does not return commands run against it, requiring that you reboot all nodes in the cluster before using it, check for the following issues.
  • You may have had a failed fence. GFS2 file systems will freeze to ensure data integrity in the event of a failed fence. Check the messages logs to see if there are any failed fences at the time of the hang. Ensure that fencing is configured correctly.
  • The GFS2 file system may have withdrawn. Check through the messages logs for the word withdraw and check for any messages and call traces from GFS2 indicating that the file system has been withdrawn. A withdraw is indicative of file system corruption, a storage failure, or a bug. At the earliest time when it is convenient to unmount the file system, you should perform the following procedure:
    1. Reboot the node on which the withdraw occurred. 
      # /sbin/reboot
      Copy to Clipboard Toggle word wrap
    2. Stop the file system resource to unmount the GFS2 file system on all nodes. 
      # pcs resource disable --wait=100 mydata_fs
      Copy to Clipboard Toggle word wrap
    3. Capture the metadata with the gfs2_edit savemeta... command. You should ensure that there is sufficient space for the file, which in some cases may be large. In this example, the metadata is saved to a file in the /root directory. 
      # gfs2_edit savemeta /dev/vg_mydata/mydata /root/gfs2metadata.gz
      Copy to Clipboard Toggle word wrap
    4. Update the gfs2-utils package. 
      # sudo yum update gfs2-utils
      Copy to Clipboard Toggle word wrap
    5. On one node, run the fsck.gfs2 command on the file system to ensure file system integrity and repair any damage. 
      # fsck.gfs2 -y /dev/vg_mydata/mydata > /tmp/fsck.out
      Copy to Clipboard Toggle word wrap
    6. After the fsck.gfs2 command has completed, re-enable the file system resource to return it to service: 
      # pcs resource enable --wait=100 mydata_fs
      Copy to Clipboard Toggle word wrap
    7. Open a support ticket with Red Hat Support. Inform them you experienced a GFS2 withdraw and provide logs and the debugging information generated by the sosreports and gfs2_edit savemeta commands.
    In some instances of a GFS2 withdraw, commands can hang that are trying to access the file system or its block device. In these cases a hard reboot is required to reboot the cluster.
    For information on the GFS2 withdraw function, see Section 3.11, “The GFS2 Withdraw Function”.
  • This error may be indicative of a locking problem or bug. Gather data during one of these occurrences and open a support ticket with Red Hat Support, as described in Section 4.2, “GFS2 File System Hangs and Requires Reboot of One Node”.
Voltar ao topo
Red Hat logoGithubredditYoutubeTwitter

Aprender

Experimente, compre e venda

Comunidades

Sobre a documentação da Red Hat

Ajudamos os usuários da Red Hat a inovar e atingir seus objetivos com nossos produtos e serviços com conteúdo em que podem confiar. Explore nossas atualizações recentes.

Tornando o open source mais inclusivo

A Red Hat está comprometida em substituir a linguagem problemática em nosso código, documentação e propriedades da web. Para mais detalhes veja o Blog da Red Hat.

Sobre a Red Hat

Fornecemos soluções robustas que facilitam o trabalho das empresas em plataformas e ambientes, desde o data center principal até a borda da rede.

Theme

© 2025 Red Hat