gc current grant 3-way
Definition
- An instacne request for any data block in current mode.
- Mater is not the holder of that data block, then master forward a message to provide the data block to the requesting instance.
- Current holding instance don't have the block because of aging out mechanism.
- Current holding instance grant exclusive lock to the requesting instance for physical IO.
- Meanwhile requesting instance will wait in "gc current grant 3-way".
- there is a hidden parameter to control this "_cr_grant_local_role"
Definition
- An instacne request for any data block in current mode.
- Mater is not the holder of that data block, then master forward a message to provide the data block to the requesting instance.
- Current holding instance don't have the block because of aging out mechanism.
- Current holding instance grant exclusive lock to the requesting instance for physical IO.
- Meanwhile requesting instance will wait in "gc current grant 3-way".
- there is a hidden parameter to control this "_cr_grant_local_role"
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