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⇤ ← Revision 1 as of 2014-07-01 17:44:55
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← Revision 2 as of 2014-07-09 16:44:49 ⇥
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| Checkpoint and Group have complex interdependencies that will be detailed here. | Shared checkpoints create a group (per checkpoint table) to identify replicas and to pick the active replica. All groups use a single checkpoint (SAFplus::Checkpoint Group::mGroupCkpt). Groups store <????> in this structure because <????>. But groups can be configured to use an in memory database instead of a checkpoint. Using this mode has the following features, limitations, and effects: 1. ?? 2. ?? To avoid circular initialization dependencies, Checkpoints initialize themselves with in-memory groups. |
Shared checkpoints create a group (per checkpoint table) to identify replicas and to pick the active replica.
All groups use a single checkpoint (SAFplus::Checkpoint Group::mGroupCkpt). Groups store <????> in this structure because <????>.
But groups can be configured to use an in memory database instead of a checkpoint. Using this mode has the following features, limitations, and effects:
- ??
- ??
To avoid circular initialization dependencies, Checkpoints initialize themselves with in-memory groups.