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Latest revisions

# Date Author Comment
d4928417 05/29/2014 02:07 pm Klaus Aehlig

(2.11) Make BlockDev subclasses adhere the interface for Create

In commit 702c3270 two new parameters were added to the
Create function of BlockDev. Make subclasses also adhere
this specification.

Signed-off-by: Klaus Aehlig <>
Reviewed-by: Petr Pudlak <>
3317a3e5 05/29/2014 02:07 pm Klaus Aehlig

(2.11) Make BlockDev subclasses adhere to new interface

In commit 702c3270 two new parameters were added to the
constructor of BlockDev. Make the subclassess accept these
additional parameters as well.

Signed-off-by: Klaus Aehlig <>
Reviewed-by: Petr Pudlak <>
9242db4a 05/29/2014 02:07 pm Dimitris Aragiorgis

(2.11) Make disk.name and disk.uuid available in bdev

Until now Disk name and uuid was not available on bdev level.
In case of ExtStorage, this info is useful, and may be for other
templates in the future too.

This patch treats the name and uuid object slots just like the size...
d93e2477 05/29/2014 02:07 pm Dimitris Aragiorgis

(2.13) kvm: Add migration capabilities as an hvparam

Latest QEMU versions support various migration capabilities. Each
can be enabled/disabled with 'migrate_set_capability' monitor
command.

Version 1.7.0 defines x-rdma-pin-all, auto-converge, zero-blocks,...
a2f9ee87 05/29/2014 02:07 pm Dimitris Aragiorgis

(2.8r) Workaround for Issue 621

Upon LUNetworkDisconnect() and LUNetworkConnect() try to acquire
all cluster's instances.

By that _LS_ACQUIRE_ALL acquire mode is set and not
_LS_ACQUIRE_EXACT and thus the deleted lock does cause any problem.

NOTE: This workaround is not merged upstream. They prefer to have...
4922cd73 05/28/2014 06:20 pm Jose A. Lopes

'Raise' called inside 'CheckPrereq' needs the prereq kw

This patch fixes the missing 'prereq' keyword in calls to 'Raise' in
the control flow of 'CheckPrereq', and updates the tests.

Signed-off-by: Jose A. Lopes <>
Reviewed-by: Hrvoje Ribicic <>
b3aa93a2 05/26/2014 06:03 pm Klaus Aehlig

Use more efficient statistics for the standard deviation

Instead of using the full sample as statistics providing
enough information to compute the standard deviation, use
a slightly more elaborate one. It contains the standard
statistics count, sum, and sum of squares, which can also...
c5da4cf1 05/26/2014 06:03 pm Klaus Aehlig

Use statistics updates when allocating on pairs

When considering the various ways of positioning an instance
on a pair of nodes, make use of the fact that the statistics
are extremely similar (only two nodes changed) and obtain the
new statistics by updating the old one, rather than by recomputing...
f66ae90a 05/26/2014 06:03 pm Klaus Aehlig

Factor score computation through abstract statistics

Logically separate the computation of the cluster score into
two steps: the computation of the abstract statistics and its
evaluation. In this way, we obtain an abstract value which we
can update instead of recomputing it when considering different...
6bb77749 05/26/2014 06:03 pm Klaus Aehlig

Verify the update of the standard deviation statistics

Add a test that verifies that the error introduced by updating
a standard-deviation statistics of a sample with at least two
elements is not too large, as compared to the direct computation.

Signed-off-by: Klaus Aehlig <>...

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