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41b97529d0
hash index at shutdown btr_search_disable(): Just drop the entire adaptive hash index, without dropping every record separately. buf_pool_clear_hash_index(): Renamed and simplified from buf_pool_drop_hash_index(). Set block->index = NULL for every block in the buffer pool. Do not release the btr_search_latch. The caller will have to adjust other data structures. Remove block->is_hashed. It is redundant, should be always equal to block->index != NULL. Remove btr_search_fully_disabled, btr_search_enabled_mutex, and SYNC_SEARCH_SYS_CONF. We drop the AHI in one pass, without releasing the btr_search_latch in between. Replace void* with const rec_t* and add assertions on btr_search_latch and btr_search_enabled to ha0ha.h, ha0ha.ic, ha0ha.c. page_set_max_trx_id(): Ignore the adaptive hash index. I forgot to push this in rb:750. btr0sea.c: Always after acquiring btr_search_latch, check for block->index==NULL or !btr_search_enabled. We can now set block->index=NULL while only holding btr_search_latch in exclusive mode. Always acquire btr_search_latch before reading block->index, except in shortcuts when testing for block->index == NULL. ha_clear(), ha_search(): Unused function, remove. buf_page_peek_if_search_hashed(): Remove. This function may avoid latching a page at the cost of doing a duplicate buf_pool->page_hash lookup. rb:775 approved by Inaam Rana |
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| ha0ha.c | ||
| ha0storage.c | ||
| hash0hash.c | ||