Updates:
Status: Fixed
Comment #6 on issue 747 by [email protected]: Honor job priorities when
handing out locks
http://code.google.com/p/ganeti/issues/detail?id=747
commit 3bd2a4c80fdf8b88f9ff03ccc8b12a0d3677e629
Author: Klaus Aehlig <[email protected]>
Date: Tue Jun 3 19:37:44 2014 +0200
Provide correct priority
...when waiting for a lock. This will ensure that the more
important jobs are preferred over the less important ones.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
commit 7cd05067a9853bb8d17f065e190512faa33b0cd3
Author: Klaus Aehlig <[email protected]>
Date: Tue Jun 3 13:54:08 2014 +0200
Relax times
As lock allocation is now inter-process communication, increase
the minimal time we allow ourself for obtaining a lock. Also,
increase polling frequency by an order of magnitude. The latter
is safe, as we do not require on polling any more to get the
locks assigned.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
commit b624946350991656980b1a4130d9bee0c42f539b
Author: Klaus Aehlig <[email protected]>
Date: Tue Jun 3 17:15:45 2014 +0200
Make mcpu use wconfd's asynchronous requests
Instead of only polling make mcpu ask wconfd to hand out the
locks as soon as they become available. For the time being,
we still poll to find out if the request was granted. Nevertheless,
this will ensure that locks are handed out in the intended order,
in particular honoring job priorities.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
commit cd7e4240f3d41b5902cb33317fd13845f5fea62e
Author: Klaus Aehlig <[email protected]>
Date: Wed Jun 4 09:57:37 2014 +0200
Add UpdateLocksWaiting and HasPendingRequest to MockClient
...and implement so in the most trivial way, always suceeding
immediately. The point is, these mocks are not used to test
the mcpu that uses the WConfD client but, instead, indirectly
in our so called "unit tests" for the logical units that call
the real mpcu.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
commit f4ed516b94ce8c1edf8a28093a640305d49fac85
Author: Klaus Aehlig <[email protected]>
Date: Tue Jun 3 18:31:58 2014 +0200
Expose updateLocksWaiting through WConfD
...so that owners can request their locks to granted when
ready instead of having to rely on polling. This will, in
particular, be important for high-priority jobs as it makes
sure they get their locks earlier.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
commit f88b0e36f63abf5bb4dc5d1821464529d3391424
Author: Klaus Aehlig <[email protected]>
Date: Tue Jun 3 17:48:50 2014 +0200
Expose hasPendingRequest in WConfD
...so that owners can ask if their request got
granted already.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
commit 58bd69205be21ec0ac6c3d27a28f9ad7ca332d57
Author: Klaus Aehlig <[email protected]>
Date: Tue Jun 3 17:35:52 2014 +0200
Expose the LockWaiting read-only as well
Make WConfdMonad expose a read-only version of the lock waiting
structure. In this way, questions about pending owners can be
answered easily by the daemon.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
commit 05b7667aabdb5e7fcd86e26a60b5e23af22df842
Author: Klaus Aehlig <[email protected]>
Date: Tue Jun 3 16:37:38 2014 +0200
Add a predicate for having a pending request
Add a predicate telling whether a given owner has a pending
request. In this way, an owner can poll for his request: if
he does not have a pending request, his previous asynchronous
request has been granted.
Signed-off-by: Klaus Aehlig <[email protected]>
Reviewed-by: Petr Pudlak <[email protected]>
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