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Latest revisions

# Date Author Comment
859fc11d 12/09/2010 04:08 pm Iustin Pop

Add a 'log' attribute to allocation solutions

And also a couple of functions for describing a given solution; these
will be used in the future instead of the ones currently in hail.

The patch also enhances the description of failure messages.

Signed-off-by: Iustin Pop <>...
85d0ddc3 12/09/2010 04:08 pm Iustin Pop

Change AllocSolution from tuple to its own type

Tuples are good for two, three, at most four elements. Beyond that, the
continuous pattern matching and construction/deconstruction becomes
tedious.

Since in the future we'll probably keep more information in the...
a334d536 12/01/2010 07:08 pm Iustin Pop

Cleanup AllocSolution after AllocElement changes

Since we added the score to AllocElement, we don't need to wrap
AllocElement in yet another tuple, just to attach the cluster score. So
we simplify the AllocSolution type.

Signed-off-by: Iustin Pop <>...
7d3f4253 12/01/2010 07:08 pm Iustin Pop

AllocElement: extend with the cluster score

AllocElement, a type used as a result of allocations, holds the status
of the nodes after the allocation. In most cases, we'll compare this
allocation result with others, to see which allocation decision makes
the most sense. This comparison is done via the cluster score....
06fb841e 12/01/2010 07:08 pm Iustin Pop

Add two utility functions for the Result type

Actually, this just moves the functions from the QC module to Types, and
removes a duplicate entry from Cluster.

Signed-off-by: Iustin Pop <>
Reviewed-by: Balazs Lecz <>
99b63608 12/01/2010 07:08 pm Iustin Pop

Rework the types used during data loading

This improves on the previous change. Currently, the node and instance
lists shipped around during data loading are (again) association lists.
For instances it's not a big issue, but the node list is rewritten
continuously while we assign instances to nodes, and that is very slow....
2d0ca2c5 12/01/2010 07:08 pm Iustin Pop

Loader functions: move from assoc lists to maps

When loading big clusters, the association lists become a bit slow, so
we'll replace this with a simple Map String Int; the change is trivial
and can be reverted easily, while it brings up a good speedup in the...
6ff78049 12/01/2010 07:08 pm Iustin Pop

Convert some leftovers to NameAssoc

The type alias NameAssoc has been introduced a long time ago, but there
are some few not-yet-converted cases. In preparation for changes to that
type, let's make sure we use it consistently.

Signed-off-by: Iustin Pop <>...
646aa028 12/01/2010 03:00 pm Iustin Pop

hbal: implement handling of multi-group clusters

On a single-group cluster, we proceed as before. On multi-group
clusters, we require selection of the desired group (currently via UUID
only).

Signed-off-by: Iustin Pop <>
Reviewed-by: Balazs Lecz <>
f4161783 12/01/2010 03:00 pm Iustin Pop

Add Cluster.splitCluster for node groups

This splits a top-level cluster information into the component node
groups. Instance go to the group of their primary node, but otherwise we
don't disallow split instances.

Signed-off-by: Iustin Pop <>...

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