Problem Statement: Problem Statement

Three goals:

• Use a new memory format method of allocating pool memory:
• Specifying buffer pool size in bytes (Kb, Mb, Gb) units.
• Marking the pool as extendable.
• Maintain the legacy format method of BUFFERPOOL for current user compatibility:
• Specifying buffer pool size and its limits in pagesize units.

Some BUFFERPOOL arguments are now incompatible with others.

Must follow rules to properly set this parameter:

• Order of precedence for all BUFFERPOOL definitions:
• All definitions shall have the same format (all legacy or all memory) or the server will not boot.
• If an argument’s value is not defined, we use the value from the default BUFFERPOOL setting.
• If the default BUFFERPOOL setting is not defined, use the internal definition for the format being used. If unable to determine format (ex. BUFFERPOOL size=2k), use internal format based on any other BUFFERPOOL definitions present. If not, use internal legacy.