Comment #3 on issue 855 by [email protected]: Hide opportunistic locking
within Ganeti
http://code.google.com/p/ganeti/issues/detail?id=855
commit f3f1fc574671d41fefb05661b01d4ff93312eef7
Author: Klaus Aehlig <[email protected]>
Date: Tue Jul 8 17:29:41 2014 +0200
Honor requests for minimal lock count
Change lock allocation in mcpu to honor the required minimum
of locks to allocate in opportunistic lock allocation.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Hrvoje Ribicic <[email protected]>
commit ed94242fdd9947815c84de8b0727aa63630c8f34
Author: Klaus Aehlig <[email protected]>
Date: Tue Jul 8 17:26:30 2014 +0200
Make instance creation ask for 2 nodes, if DRBD is used
In opportunistic locking, we always ask for as many locks
as possible to later chose what fits best. However, we
may also ask for a minimum as otherwise it cannot work
for principle reasons. For DRBD, this minimum should
be two, rather than the default one.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Hrvoje Ribicic <[email protected]>
commit 24ef93b37ba2411e86f06e045d523a8769372335
Author: Klaus Aehlig <[email protected]>
Date: Tue Jul 8 17:03:48 2014 +0200
Allow LUs to specify a number of opportunistic locks
LUs may decide to acquire locks in an opportunistic way. In this
case, also allow them to specify the number of locks the which to
acquire at least.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Hrvoje Ribicic <[email protected]>
commit 280f37bccdc676aec4e6e5aaf7e321632b12756b
Author: Klaus Aehlig <[email protected]>
Date: Tue Jul 8 16:53:05 2014 +0200
Export guardedOpportunisticLockUnion through WConfD
...so that jobs can wait till they get a number of locks
that might work at least in principle.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Hrvoje Ribicic <[email protected]>
commit 96245004980fdf9b8f2257a52ada81b08404b75b
Author: Klaus Aehlig <[email protected]>
Date: Tue Jul 8 14:44:16 2014 +0200
Add a guarded version of opportunistic locking
...allowing to request at least a certain number of
the requests to succeed and otherwise not touch the
locking state.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Hrvoje Ribicic <[email protected]>
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