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#15065: Add standby_for_fscid in MMDSBeacon and handle it #8257

Merged
merged 15 commits into from Mar 25, 2016
Merged

#15065: Add standby_for_fscid in MMDSBeacon and handle it #8257

merged 15 commits into from Mar 25, 2016

Commits on Mar 22, 2016

  1. messages: support features in MFSMap 

    Not used for anything currently, but let's make
this class pass through the features to FSMap's
encode method for the benefit of the future
generations.

Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Mar 22, 2016
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  2. mon: name cleanup s/mdsmap_bl/fsmap_bl/ 

    Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Mar 22, 2016
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  3. tools: update naming s/handle_mds_map/handle_fs_map/ 

    Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Mar 22, 2016
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  4. mds/FSMap: pass by ref in update_compat 

    Coverity: CID 1355578:  Performance inefficiencies  (PASS_BY_VALUE)

Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Mar 22, 2016
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  5. mds: fix whitespace in is_cluster_available 

    This got mangled somehow.

Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Mar 22, 2016
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  6. mds: fix mds_info_t::dump 

    This broke with 4ad8f72 ('features' gets
output as an item in the 'export_targets' list),
which wasn't the fsmap branch, but fix it while
I'm tidying.

Signed-off-by: John Spray <john.spray@redhat.com>
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  7. mds: pass features through to MDSMap::encode 

    ...from Filesystem.  This will prepare us for if
MDSMap gets any more feature-sensitive encoding
in the future.

Fixes: #15062
Signed-off-by: John Spray <john.spray@redhat.com>
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  8. mon: config setting to skip FSMap::sanity 

    Only for use in extremis, where we have encountered
a bug that generates an invalid FSMap, but the way
to resolve it might be to proceed anyway and stay
up long enough to use commands to fix it.

Fixes: #15063
Signed-off-by: John Spray <john.spray@redhat.com>
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  9. mds: plain text prints for FSMap/Filesystem 

    These were just dumping JSON as a placeholder.

Not strictly necessary to have the extra non-machine-readable
variants of these outputs, but some users will probably appreciate
it, so why not.

Signed-off-by: John Spray <john.spray@redhat.com>
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  10. mon: s/mdsmap/fsmap/ in "ceph status" 

    Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Mar 22, 2016
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  11. vstart: support creating multiple cephfs filesystems 

    This is handy if you want to quickly create a cluster
with lots of filesystems, for playing with e.g. what
the ceph status output looks like when multiple filesystems
are in play.

This changes the default filesystem/pool names to be
e.g. cephfs_data_a instead of just `cephfs_data`, but anything
who relied on those names in a vstart environment houldn't have
been (this won't affect teuthology tests, of course, where we
still have a few annoying hardcoded pool names).

Signed-off-by: John Spray <john.spray@redhat.com>
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  12. mds: s/standby_for_ns/standby_for_fscid/ 

    Name dates from earlier version of multi-fs
where I was referring to filesystem IDs
as namespace IDs.

Signed-off-by: John Spray <john.spray@redhat.com>
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  13. messages: add MMDSBeacon::standby_for_fscid 

    For the MDS daemon to tell the mon which filesystem
it wants to a be a standby for, when it is expressing
a standby_for_rank.

Signed-off-by: John Spray <john.spray@redhat.com>
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  14. mds: add mds_standby_for_fscid config 

    ...and pass it through into MMDSBeacon.

Signed-off-by: John Spray <john.spray@redhat.com>
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  15. mds: enable standby_for_fscid without rank 

    ...so that an MDS can specify that it wants
to act within a particular filesystem without
having to be bound to a particular rank.

Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Mar 22, 2016
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