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# Date Author Comment
07eec0fc 02/21/2014 02:14 pm Klaus Aehlig

Generate arbitrary :: LockAllocation according to interface

While we know that freeLocks and intersectLocks are defined in terms
of updateLocks, it is still cleaner to test against the interface: the
module Ganeti.Locking.Allocation exports several functions, and all...
277c969f 02/19/2014 03:45 pm Klaus Aehlig

Add a test verifying that lock-implication is honored

Locks can be included in one another. This inclusion can be violated
in two ways, viz.,
- A holds a lock L and B holds an exclusive lock L belongs to, and
- A holds an exclusive lock and B holds a lock L belongs to....
64df329d 02/19/2014 03:45 pm Klaus Aehlig

Verify that every owner mentioned as blocking actually is

If a request is blocked by multiple lock owners, verify that each
single one of them actually blocks the request. In other words,
verify that, whenever all but one release their lock, the request
still does not succeed....
9bf17b50 02/19/2014 03:45 pm Klaus Aehlig

Verify that the set of blocking owners is big enough

When a request is blocked, the list of blocking owners
should exhaust all blocking reasons, i.e., if those
owners release all their locks, the update must succeed.

Signed-off-by: Klaus Aehlig <>...
619b12df 02/19/2014 03:45 pm Klaus Aehlig

Make TestLock an instance of Lock

Equip the type of test locks with a simple group structure
consisting of two lock groups and a big lock.

Signed-off-by: Klaus Aehlig <>
Reviewed-by: Petr Pudlak <>
a9c3ba29 02/19/2014 03:45 pm Klaus Aehlig

Verify that releasing a lock always succeeds

There are no restrictions on releasing a lock; so this operation
has to succeed unconditionally. Verify this.

Signed-off-by: Klaus Aehlig <>
Reviewed-by: Petr Pudlak <>
93f1e606 02/19/2014 10:39 am Jose A. Lopes

Add '-c | --instance-communication' flag to instance modify

  • Add the instance communication flag to the 'OpInstanceSetParams'
    opcode. This flag allows the user to enable/disable instance
    communication in a running instance. This patch adds this flag but...
a317d77a 02/17/2014 03:40 pm Klaus Aehlig

Make the lock allocation part of WConfD's state

As WConfD is supposed to be the authoritative source for
configuration and locks, it needs to have access to the lock
state as well.

Signed-off-by: Klaus Aehlig <>
Reviewed-by: Petr Pudlak <>
1d49428b 02/17/2014 03:40 pm Klaus Aehlig

Verify atomicity of lock updates

Add a test verifying the atomicity of an update, i.e., if an update
succeeds, then all requests must be satisfied in the final state, and
if it fails, the state must be unchanged.

Signed-off-by: Klaus Aehlig <>...
987fcfb7 02/17/2014 03:40 pm Klaus Aehlig

Verify lock stability over updates

Add a test that verifies that updates by one user do not
affect the locks held by a different user.

Signed-off-by: Klaus Aehlig <>
Reviewed-by: Petr Pudlak <>

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