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https://github.com/ceph/ceph
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755 B
ReStructuredText
28 lines
755 B
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=================
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Troubleshooting
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=================
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Mount 5 Error
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=============
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A mount 5 error typically occurs if a MDS server is laggy or if it crashed.
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Ensure at least one MDS is up and running, and the cluster is ``active +
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healthy``.
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Mount 12 Error
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==============
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A mount 12 error with ``cannot allocate memory`` usually occurs if you have a
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version mismatch between the :term:`Ceph Client` version and the :term:`Ceph
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Storage Cluster` version. Check the versions using::
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ceph -v
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If the Ceph Client is behind the Ceph cluster, try to upgrade it::
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sudo apt-get update && sudo apt-get install ceph-common
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You may need to uninstall, autoclean and autoremove ``ceph-common``
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and then reinstall it so that you have the latest version.
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