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DNM: adding rmfs etc (wip-nullfs) #1852

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DNM: adding rmfs etc (wip-nullfs) #1852

wants to merge 24 commits into from

Commits on Jun 6, 2014

  1. doc: RPM instructions correction 

    Signed-off-by: John Spray <john.spray@inktank.com>
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  2. mds: add 'enabled' flag to MDSMap 

    When 'enabled' is false, the MDSMap is effectively
null.  This allows Ceph clusters with no filesystem
or filesystem data/metadata pools.

Signed-off-by: John Spray <john.spray@inktank.com>
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  3. mds: no initial filesystem 

    Because not everyone uses CephFS, we would
like to avoid initially creating any data/metadata
pools for CephFS.

To avoid creating those pools, we must avoid initially
populating the MDSMap.

Signed-off-by: John Spray <john.spray@inktank.com>
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  4. osdmap: Don't create FS pools by default 

    Because many Ceph users don't use the filesystem,
don't create the 'data' and 'metadata' pools by
default -- they will be created by newfs if
they are needed.

Signed-off-by: John Spray <john.spray@inktank.com>
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  5. mon: don't require 'sure' flag for new fs 

    Only prompt for --yes-i-really-mean-it if there
is an existing FS.

Signed-off-by: John Spray <john.spray@inktank.com>
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  6. mon: validate pools exist in newfs 

    Previously we trusted user implicitly: now check
input against OSDMap to validate that the
pools really exist.

Signed-off-by: John Spray <john.spray@inktank.com>
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  7. mon: warn in newfs if crash_replay_interval=0 

    This is the setting we would apply to data pools
created automatically, so notify the user if they're
failing to use it for data pools they have created
by hand.

Signed-off-by: John Spray <john.spray@inktank.com>
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  8. mon: enable deleting pools when FS disabled 

    Signed-off-by: John Spray <john.spray@inktank.com>
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  9. mon: stop MDSMonitor when FS disabled 

    Where 'stopped' means ignoring beacons and
not performing 'tick' activities.

Signed-off-by: John Spray <john.spray@inktank.com>
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  10. mon: add ceph mds rmfs 

    Sets enabled=false on the mds map so that an
administrator can remove the filesystem pools
if he wishes.

Signed-off-by: John Spray <john.spray@inktank.com>
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  11. mon: refactor MDSMonitor cmd handler 

    MDS commands are now divided into two handler functions,
one for create/remove of the filesystem, and one for
operations on the filesystem itself.

Signed-off-by: John Spray <john.spray@inktank.com>
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  12. mon: forbid 'mds rmfs' while daemons are running 

    This avoids the need to do anything clever about kicking
out MDS daemons during a rmfs: we push that responsibility
onto the admin to run 'mds stop' or somestuch first.

Signed-off-by: John Spray <john.spray@inktank.com>
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  13. mon/MDSMonitor: add fs_name 

    newfs and rmfs commands now refer to the
filesystem by name, so that in future these
commands can support a multi-filesystem
model.

rmfs when no filesystem exists is now a
warning rather than an error.

Signed-off-by: John Spray <john.spray@inktank.com>
    @jcsp
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  14. vstart: update for newfs/rmfs changes 

    Signed-off-by: John Spray <john.spray@inktank.com>
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  15. qa: update for newfs/rmfs changes 

    Signed-off-by: John Spray <john.spray@inktank.com>
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  16. test/cli: Update for only 1 default pool 

    Tests for osdmaptool previously assumed that --createsimple
would always result in at least 3 pools.

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  17. mon: hide mdsmap in 'ceph status' if not enabled 

    Previously we checked if the MDS map had ever been
updated (epoch > 1), now we have an explicit flag
for whether it's enabled.

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  18. test: update test_ceph_argparse for newfs/rmfs 

    Signed-off-by: John Spray <john.spray@inktank.com>
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  19. test: update tests that used 'data' pool 

    Signed-off-by: John Spray <john.spray@inktank.com>
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  20. test/TestOSDMap: create EC pool cleanly 

    Previously assumed that a pool with ID 2
existed in the default OSD map.

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  21. mon: implement "fs [new|rm|ls]" 

    Signed-off-by: John Spray <john.spray@redhat.com>
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  22. test: add "fs [new|ls|rm]" argparse tests 

    Signed-off-by: John Spray <john.spray@redhat.com>
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  23. qa: update 'newfs' -> 'fs new' 

    & also catch some more tests that were assuming
a 'data' pool existed.

Signed-off-by: John Spray <john.spray@redhat.com>
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  24. vstart: update from newfs to 'fs new' 

    Signed-off-by: John Spray <john.spray@redhat.com>
    John Spray committed Jun 6, 2014
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