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LRU dump backup

Percona XtraBackup includes a saved buffer pool dump into a backup to enable reducing the warm up time. It restores the buffer pool state from ib_buffer_pool file after restart. Percona XtraBackup discovers ib_buffer_pool and backs it up automatically.

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If the buffer restore option is enabled in my.cnf, buffer pool will be in the warm state after backup is restored.

Find the information on how to save and restore the buffer pool dump in Saving and Restoring the Buffer Pool State.

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