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| author | David Zafman <david.zafman@inktank.com> | 2013-05-07 15:58:48 -0700 |
|---|---|---|
| committer | David Zafman <david.zafman@inktank.com> | 2013-05-09 12:00:29 -0700 |
| commit | 09163a3bbc37223416a87dec39dfe2db7c06d2ba (patch) | |
| tree | 23dfcb8c35a4ce384570b86d1d0f1c93a0a1970a /doc | |
| parent | df049c1c1ffeb3efa29eff7e9862c6ae7ea489cf (diff) | |
| download | ceph-09163a3bbc37223416a87dec39dfe2db7c06d2ba.tar.gz | |
Add priority option to AsyncReserver class
Add priority to request_reservation()
Change to map of lists by prioriry
Add priority to queue_pointers mappped type
Signed-off-by: David Zafman <david.zafman@inktank.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/dev/osd_internals/backfill_reservation.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/doc/dev/osd_internals/backfill_reservation.rst b/doc/dev/osd_internals/backfill_reservation.rst index 9918360c49d..11c92cd5472 100644 --- a/doc/dev/osd_internals/backfill_reservation.rst +++ b/doc/dev/osd_internals/backfill_reservation.rst @@ -10,9 +10,9 @@ incoming backfills on a single node. Each OSDService now has two AsyncReserver instances: one for backfills going from the osd (local_reserver) and one for backfills going to the osd (remote_reserver). An AsyncReserver (common/AsyncReserver.h) manages a queue -of waiting items and a set of current reservation holders. When a slot frees -up, the AsyncReserver queues the Context* associated with the next item in the -finisher provided to the constructor. +by priority of waiting items and a set of current reservation holders. When a +slot frees up, the AsyncReserver queues the Context* associated with the next +item on the highest priority queue in the finisher provided to the constructor. For a primary to initiate a backfill, it must first obtain a reservation from its own local_reserver. Then, it must obtain a reservation from the backfill |