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Latest revisions

# Date Author Comment
0102e732 06/28/2013 12:46 pm Klaus Aehlig

Update design document for hroller

The requirement to be able to plan full node evacuation came up after
the initial design. So add a section describing the algorithm, if
full evacuation is requested.

Signed-off-by: Klaus Aehlig <>
Reviewed-by: Michele Tartara <>
9353adde 06/27/2013 12:32 pm Helga Velroyen

iallocator: storage processing accepts space_info structure

This is a small refactoring to make the processing of
the storage space information not accept a node info
result, but the more specific space info structure instead.

Signed-off-by: Helga Velroyen <>...
b82d7182 06/27/2013 12:08 pm Helga Velroyen

iallocator: get rid of MakeLegacyNodeInfo

So far, the iallocator makes a node info call, converts
the result into a legacy node info structure and then
retrieves various values from it. This patch removes
the call to MakeLegacyNodeInfo completely, by letting the...
0ac34c90 06/27/2013 12:08 pm Helga Velroyen

iallocator: factor out instance memory summation

The iallocator adjusts the free memory by a calculation
of how much memory is actually currently used by instances
on the node. This calculation is rather complicated and
deserves its own function to increase testability. No...
11aa3ca5 06/27/2013 12:08 pm Helga Velroyen

iallocator: extract storage info directly from node info

So far, the iallocator made a node info RPC call, converted
the result into a legacy node info format and then extracted
the storage information from that. This patch removes the
middle step of this procedure, skipping the legacy node info...
3dda8127 06/27/2013 12:05 pm Helga Velroyen

Make NodeInfo (hs) accept arbitrary storage types

So far, the Haskell implementation of NodeInfo just
requests storage information about volume groups.
With this patch, storage info for abitrary storage
types can be requested.

Signed-off-by: Helga Velroyen <>...
00839a42 06/27/2013 12:05 pm Helga Velroyen

Storage utility functions for Haskell

In order to extend the Haskell version of the NodeInfo
query, we need some utility functions to deal with
disk templates and storage types.

Signed-off-by: Helga Velroyen <>
Reviewed-by: Thomas Thrainer <>
20529708 06/27/2013 12:05 pm Helga Velroyen

iallocator: computation of storage data

This patch extracts the processing of the storage-related
data from the RPC call 'node_info' in a separate function
to increase testability. In addition, this patch contains
unit tests for this function.

Signed-off-by: Helga Velroyen <>...
b844311b 06/27/2013 12:05 pm Helga Velroyen

rpc.py: override default storage type in node info

This patch changes the semantics of dealing with the result
of the RPC call "node_info" when converting them into a
LegacyNodeInfo. A legacy node info, can only hold storage
information about one storage type, which so far was always...
0f70b3fb 06/27/2013 12:05 pm Helga Velroyen

iallocator: factor out 'get_attr' method

This patch extracts an inline 'get_attr' method to extract
data from the result of the RPC call 'node_info'. It was so
far an inline function in the middle of a bigger method, which made
the code hard to read.

Signed-off-by: Helga Velroyen <>...

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