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Latest revisions

# Date Author Comment
5f4464db 03/07/2012 11:05 pm Iustin Pop

Use the mirror type in Cluster.possibleMoves

Currently the function possibleMoves always presumes DtDrbd, which is
wrong for shared storage. To make it work with all disk templates, we
additionally pass the mirror type to it (we assume that the move
behaviour only depends on the mirror type, and not the individual...
810d051f 03/07/2012 11:05 pm Iustin Pop

iPolicy: enable by default all storage templates

… otherwise we can't run tests or simulations using non-default
templates. Tests still pass.

Signed-off-by: Iustin Pop <>
Reviewed-by: Guido Trotter <>
255d140d 03/07/2012 11:05 pm Iustin Pop

Fix printSolutionLine to handle big scores

Currently we don't set a boundary on the length of the score field,
which breaks all our nicely-aligned output efforts.

Signed-off-by: Iustin Pop <>
Reviewed-by: Guido Trotter <>
e85444d0 03/07/2012 11:05 pm Iustin Pop

Fix printSolutionLine to handle non-DRBD steps

Currently Cluster.printSolutionLine function always wants to print the
old and new secondary, and as such it fails (ugly) for moves of
non-DRBD instances. Change it so that it looks explicitly for
noSecondary nodes, and format the output different in that case....
b906d7c1 03/07/2012 11:05 pm Iustin Pop

Add a helper type and function for the mirror type

Currently we track the mirroring type as simply yes/no, with "yes"
meaning DRBD. This is not enough for handling shared storage, so we
need to add a type that gives the exact mirroring type (none,
internal, external), and a function that ties the disk template type...
73d12eab 03/07/2012 11:04 pm Iustin Pop

Small simplification in tryBalance

Instead of computing the bad/good node lists separately (in effect
iterating twice over the all_nodes list and also creating that list
twice from the container), let's use 'partition' and do a small
improvement.

Signed-off-by: Iustin Pop <>...
2c7b328c 03/07/2012 11:04 pm Iustin Pop

Mark Rbd as a movable disk template

Signed-off-by: Iustin Pop <>
Reviewed-by: Guido Trotter <>
a7667ba6 03/07/2012 11:04 pm Iustin Pop

Do not rely on no-secondary for movable tests

Currently, the code in Loader.hs marks as un-movable any instances
which don't have a secondary. This is not valid for any shared storage
templates, so let's remove that check completely. The initial state of...
b7743258 03/07/2012 11:04 pm Iustin Pop

Handle nodes without local storage

Our current cluster model is based on per-node storage, and as such we
don't handle shared disk templates. Until we can improve the model,
let's handle nodes without local storage better: in order to still
compute a valid cluster score, we need to handle nodes with tDsk == 0....
035b33e2 03/07/2012 10:59 pm Iustin Pop

Fix tempfile reset code & test on newer Python

Python 2.7.3 (rc status) and 3.2.3/3.3 (rc, respectively alpha status)
have fixed http://bugs.python.org/issue12856 which we worked around
ourselves.

This means two things:

- we don't need to manually reset the module...

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