From 3dda794a66ff72a5fd2bec688359bf5263d1a267 Mon Sep 17 00:00:00 2001 From: John Wilkins Date: Thu, 23 May 2013 17:01:29 -0700 Subject: [PATCH] doc: Added separate troubleshooting for MDS and Ceph FS. Signed-off-by: John Wilkins --- doc/cephfs/troubleshooting.rst | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 doc/cephfs/troubleshooting.rst diff --git a/doc/cephfs/troubleshooting.rst b/doc/cephfs/troubleshooting.rst new file mode 100644 index 00000000000..554698c7074 --- /dev/null +++ b/doc/cephfs/troubleshooting.rst @@ -0,0 +1,28 @@ +================= + Troubleshooting +================= + + +Mount 5 Error +============= + +A mount 5 error typically occurs if a MDS server is laggy or if it crashed. +Ensure at least one MDS is up and running, and the cluster is ``active + +healthy``. + + +Mount 12 Error +============== + +A mount 12 error with ``cannot allocate memory`` usually occurs if you have a +version mismatch between the :term:`Ceph Client` version and the :term:`Ceph +Storage Cluster` version. Check the versions using:: + + ceph -v + +If the Ceph Client is behind the Ceph cluster, try to upgrade it:: + + sudo apt-get update && sudo apt-get install ceph-common + +You may need to uninstall, autoclean and autoremove ``ceph-common`` +and then reinstall it so that you have the latest version. \ No newline at end of file -- 2.47.3