XtraDB from Percona-Server-5.5.27-rel28.1

mysql-test/suite/sys_vars/r/innodb_merge_sort_block_size_basic.result

+SELECT @@global.innodb_merge_sort_block_size;
+@@global.innodb_merge_sort_block_size
+1048576
+SELECT @@session.innodb_merge_sort_block_size;
+@@session.innodb_merge_sort_block_size
+1048576
+SET @old_global=@@global.innodb_merge_sort_block_size;
+SET @old_session=@@session.innodb_merge_sort_block_size;
+SET @@global.innodb_merge_sort_block_size = 2*1024*1024;
+SET @@session.innodb_merge_sort_block_size = 4*1024*1024;
+SELECT @@global.innodb_merge_sort_block_size;
+@@global.innodb_merge_sort_block_size
+2097152
+SELECT @@session.innodb_merge_sort_block_size;
+@@session.innodb_merge_sort_block_size
+4194304
+SET @@global.innodb_merge_sort_block_size = 1024*1024*1024+1;
+Warnings:
+Warning	1292	Truncated incorrect innodb_merge_sort_block_size value: '1073741825'
+SELECT @@global.innodb_merge_sort_block_size;
+@@global.innodb_merge_sort_block_size
+1073741824
+SET @@global.innodb_merge_sort_block_size=@old_global;
+SET @@session.innodb_merge_sort_block_size=@old_session;

mysql-test/suite/sys_vars/t/innodb_merge_sort_block_size_basic.test

+--source include/have_xtradb.inc
+
+SELECT @@global.innodb_merge_sort_block_size;
+SELECT @@session.innodb_merge_sort_block_size;
+
+SET @old_global=@@global.innodb_merge_sort_block_size;
+SET @old_session=@@session.innodb_merge_sort_block_size;
+
+SET @@global.innodb_merge_sort_block_size = 2*1024*1024;
+SET @@session.innodb_merge_sort_block_size = 4*1024*1024;
+
+SELECT @@global.innodb_merge_sort_block_size;
+SELECT @@session.innodb_merge_sort_block_size;
+
+SET @@global.innodb_merge_sort_block_size = 1024*1024*1024+1;
+SELECT @@global.innodb_merge_sort_block_size;
+
+SET @@global.innodb_merge_sort_block_size=@old_global;
+SET @@session.innodb_merge_sort_block_size=@old_session;

storage/xtradb/btr/btr0btr.c

@@ -42,6 +42,7 @@ Created 6/2/1994 Heikki Tuuri
 #include "ibuf0ibuf.h"
 #include "trx0trx.h"
 
+#endif /* UNIV_HOTBACKUP */
 /**************************************************************//**
 Report that an index page is corrupted. */
 UNIV_INTERN
@@ -64,6 +65,7 @@ btr_corruption_report(
 	buf_page_print(buf_block_get_frame_fast(block), 0, 0);
 }
 
+#ifndef UNIV_HOTBACKUP
 #ifdef UNIV_BLOB_DEBUG
 # include "srv0srv.h"
 # include "ut0rbt.h"
@@ -1622,7 +1624,9 @@ btr_page_reorganize_low(
 	dict_index_t*	index,	/*!< in: record descriptor */
 	mtr_t*		mtr)	/*!< in: mtr */
 {
+#ifndef UNIV_HOTBACKUP
 	buf_pool_t*	buf_pool	= buf_pool_from_bpage(&block->page);
+#endif /* !UNIV_HOTBACKUP */
 	page_t*		page		= buf_block_get_frame(block);
 	page_zip_des_t*	page_zip	= buf_block_get_page_zip(block);
 	buf_block_t*	temp_block;

storage/xtradb/buf/buf0buf.c

@@ -344,7 +344,6 @@ be effective only if PFS_GROUP_BUFFER_SYNC is defined. */
 //					was allocated for the frames */
 //	buf_block_t*	blocks;		/*!< array of buffer control blocks */
 //};
-#endif /* !UNIV_HOTBACKUP */
 
 /********************************************************************//**
 Gets the smallest oldest_modification lsn for any page in the pool. Returns
@@ -482,6 +481,7 @@ buf_block_alloc(
 
 	return(block);
 }
+#endif /* !UNIV_HOTBACKUP */
 
 /********************************************************************//**
 Calculates a page checksum which is stored to the page when it is written
@@ -3907,9 +3907,10 @@ buf_mark_space_corrupt(
 
 /********************************************************************//**
 Completes an asynchronous read or write request of a file page to or from
-the buffer pool. */
+the buffer pool.
+@return TRUE if successful */
 UNIV_INTERN
-void
+ibool
 buf_page_io_complete(
 /*=================*/
 	buf_page_t*	bpage)	/*!< in: pointer to the block in question */
@@ -4057,7 +4058,7 @@ buf_page_io_complete(
 				table as corrupted instead of crashing server */
 				if (bpage->space > TRX_SYS_SPACE
 				    && buf_mark_space_corrupt(bpage)) {
-					return;
+					return(FALSE);
 				} else {
 					fputs("InnoDB: Ending processing"
 					      " because of"
@@ -4176,6 +4177,8 @@ buf_page_io_complete(
 
 	buf_pool_mutex_exit(buf_pool);
 	mutex_exit(block_mutex);
+
+	return(TRUE);
 }
 
 /********************************************************************//**

storage/xtradb/buf/buf0lru.c

@@ -374,7 +374,7 @@ buf_LRU_drop_page_hash_for_tablespace(
 
 /******************************************************************//**
 While flushing (or removing dirty) pages from a tablespace we don't
-want to hog the CPU and resources. Release the buffer pool and block
+want to hog the CPU and resources. Release the LRU list and block
 mutex and try to force a context switch. Then reacquire the same mutexes.
 The current page is "fixed" before the release of the mutexes and then
 "unfixed" again once we have reacquired the mutexes. */
@@ -387,7 +387,7 @@ buf_flush_yield(
 {
 	mutex_t*	block_mutex;
 
-	ut_ad(buf_pool_mutex_own(buf_pool));
+	ut_ad(mutex_own(&buf_pool->LRU_list_mutex));
 	ut_ad(buf_page_in_file(bpage));
 
 	block_mutex = buf_page_get_mutex(bpage);
@@ -399,13 +399,13 @@ buf_flush_yield(
 	buf_page_set_sticky(bpage);
 
 	/* Now it is safe to release the buf_pool->mutex. */
-	buf_pool_mutex_exit(buf_pool);
+	mutex_exit(&buf_pool->LRU_list_mutex);
 
 	mutex_exit(block_mutex);
 	/* Try and force a context switch. */
 	os_thread_yield();
 
-	buf_pool_mutex_enter(buf_pool);
+	mutex_enter(&buf_pool->LRU_list_mutex);
 
 	mutex_enter(block_mutex);
 	/* "Unfix" the block now that we have both the
@@ -415,9 +415,9 @@ buf_flush_yield(
 }
 
 /******************************************************************//**
-If we have hogged the resources for too long then release the buffer
-pool and flush list mutex and do a thread yield. Set the current page
-to "sticky" so that it is not relocated during the yield.
+If we have hogged the resources for too long then release the LRU list
+and flush list mutex and do a thread yield. Set the current page to
+"sticky" so that it is not relocated during the yield.
 @return TRUE if yielded */
 static
 ibool
@@ -439,7 +439,7 @@ buf_flush_try_yield(
 
 		buf_flush_list_mutex_exit(buf_pool);
 
-		/* Release the buffer pool and block mutex
+		/* Release the LRU list and block mutex
 		to give the other threads a go. */
 
 		buf_flush_yield(buf_pool, bpage);
@@ -472,7 +472,7 @@ buf_flush_or_remove_page(
 	mutex_t*	block_mutex;
 	ibool		processed = FALSE;
 
-	ut_ad(buf_pool_mutex_own(buf_pool));
+	ut_ad(mutex_own(&buf_pool->LRU_list_mutex));
 	ut_ad(buf_flush_list_mutex_own(buf_pool));
 
 	block_mutex = buf_page_get_mutex(bpage);
@@ -595,11 +595,11 @@ buf_flush_dirty_pages(
 	ibool	all_freed;
 
 	do {
-		buf_pool_mutex_enter(buf_pool);
+		mutex_enter(&buf_pool->LRU_list_mutex);
 
 		all_freed = buf_flush_or_remove_pages(buf_pool, id);
 
-		buf_pool_mutex_exit(buf_pool);
+		mutex_exit(&buf_pool->LRU_list_mutex);
 
 		ut_ad(buf_flush_validate(buf_pool));
 
@@ -659,8 +659,16 @@ buf_LRU_remove_all_pages(
 			goto next_page;
 		} else {
 
-			block_mutex = buf_page_get_mutex(bpage);
-			mutex_enter(block_mutex);
+			block_mutex = buf_page_get_mutex_enter(bpage);
+
+			if (!block_mutex) {
+				/* It may be impossible case...
+				   Something wrong, so will be scan_again */
+
+				all_freed = FALSE;
+				goto next_page;
+			}
+
 
 			if (bpage->buf_fix_count > 0) {
 
@@ -694,7 +702,8 @@ buf_LRU_remove_all_pages(
 			ulint	page_no;
 			ulint	zip_size;
 
-			buf_pool_mutex_exit(buf_pool);
+			mutex_exit(&buf_pool->LRU_list_mutex);
+			rw_lock_x_unlock(&buf_pool->page_hash_latch);
 
 			zip_size = buf_page_get_zip_size(bpage);
 			page_no = buf_page_get_page_no(bpage);
@@ -2370,9 +2379,23 @@ buf_LRU_free_one_page(
 				be in a state where it can be freed; there
 				may or may not be a hash index to the page */
 {
+#ifdef UNIV_DEBUG
+	buf_pool_t*	buf_pool = buf_pool_from_bpage(bpage);
+#endif
+	mutex_t*	block_mutex = buf_page_get_mutex(bpage);
+
+	ut_ad(buf_pool_mutex_own(buf_pool));
+	ut_ad(mutex_own(block_mutex));
+
 	if (buf_LRU_block_remove_hashed_page(bpage, TRUE)
 	    != BUF_BLOCK_ZIP_FREE) {
 		buf_LRU_block_free_hashed_page((buf_block_t*) bpage, TRUE);
+	} else {
+		/* The block_mutex should have been released by
+		buf_LRU_block_remove_hashed_page() when it returns
+		BUF_BLOCK_ZIP_FREE. */
+		ut_ad(block_mutex == &buf_pool->zip_mutex);
+		mutex_enter(block_mutex);
 	}
 }
 

storage/xtradb/buf/buf0rea.c

@@ -50,6 +50,44 @@ read-ahead is not done: this is to prevent flooding the buffer pool with
 i/o-fixed buffer blocks */
 #define BUF_READ_AHEAD_PEND_LIMIT	2
 
+/********************************************************************//**
+Unfixes the pages, unlatches the page,
+removes it from page_hash and removes it from LRU. */
+static
+void
+buf_read_page_handle_error(
+/*=======================*/
+	buf_page_t*	bpage)	/*!< in: pointer to the block */
+{
+	buf_pool_t*	buf_pool = buf_pool_from_bpage(bpage);
+	const ibool	uncompressed = (buf_page_get_state(bpage)
+					== BUF_BLOCK_FILE_PAGE);
+
+	/* First unfix and release lock on the bpage */
+	buf_pool_mutex_enter(buf_pool);
+	mutex_enter(buf_page_get_mutex(bpage));
+	ut_ad(buf_page_get_io_fix(bpage) == BUF_IO_READ);
+	ut_ad(bpage->buf_fix_count == 0);
+
+	/* Set BUF_IO_NONE before we remove the block from LRU list */
+	buf_page_set_io_fix(bpage, BUF_IO_NONE);
+
+	if (uncompressed) {
+		rw_lock_x_unlock_gen(
+			&((buf_block_t*) bpage)->lock,
+			BUF_IO_READ);
+	}
+
+	/* remove the block from LRU list */
+	buf_LRU_free_one_page(bpage);
+
+	ut_ad(buf_pool->n_pend_reads > 0);
+	buf_pool->n_pend_reads--;
+
+	mutex_exit(buf_page_get_mutex(bpage));
+	buf_pool_mutex_exit(buf_pool);
+}
+
 /********************************************************************//**
 Low-level function which reads a page asynchronously from a file to the
 buffer buf_pool if it is not already there, in which case does nothing.
@@ -198,6 +236,11 @@ buf_read_page_low(
 			      ((buf_block_t*) bpage)->frame, bpage, trx);
 	}
 
+	if (*err == DB_TABLESPACE_DELETED) {
+		buf_read_page_handle_error(bpage);
+		return(0);
+	}
+
 	if (srv_pass_corrupt_table) {
 		if (*err != DB_SUCCESS) {
 			bpage->is_corrupt = TRUE;
@@ -210,7 +253,9 @@ buf_read_page_low(
 		thd_wait_end(NULL);
 		/* The i/o is already completed when we arrive from
 		fil_read */
-		buf_page_io_complete(bpage);
+		if (!buf_page_io_complete(bpage)) {
+			return(0);
+		}
 	}
 
 	return(1);

storage/xtradb/dict/dict0dict.c

@@ -170,6 +170,7 @@ void
 dict_field_print_low(
 /*=================*/
 	const dict_field_t*	field);	/*!< in: field */
+#ifndef UNIV_HOTBACKUP
 /*********************************************************************//**
 Frees a foreign key struct. */
 static
@@ -183,7 +184,7 @@ and unique key errors */
 UNIV_INTERN FILE*	dict_foreign_err_file		= NULL;
 /* mutex protecting the foreign and unique error buffers */
 UNIV_INTERN mutex_t	dict_foreign_err_mutex;
-
+#endif /* !UNIV_HOTBACKUP */
 /******************************************************************//**
 Makes all characters in a NUL-terminated UTF-8 string lower case. */
 UNIV_INTERN
@@ -2318,6 +2319,7 @@ dict_index_build_internal_non_clust(
 	return(new_index);
 }
 
+#ifndef UNIV_HOTBACKUP
 /*====================== FOREIGN KEY PROCESSING ========================*/
 
 /*********************************************************************//**
@@ -2582,6 +2584,7 @@ dict_foreign_find_equiv_index(
 		       FALSE/* allow columns to be NULL */));
 }
 
+#endif /* !UNIV_HOTBACKUP */
 /**********************************************************************//**
 Returns an index object by matching on the name and column names and
 if more than one index matches return the index with the max id
@@ -2641,6 +2644,7 @@ dict_table_get_index_by_max_id(
 	return(found);
 }
 
+#ifndef UNIV_HOTBACKUP
 /**********************************************************************//**
 Report an error in a foreign key definition. */
 static
@@ -2806,6 +2810,7 @@ dict_foreign_add_to_cache(
 	return(DB_SUCCESS);
 }
 
+#endif /* !UNIV_HOTBACKUP */
 /*********************************************************************//**
 Scans from pointer onwards. Stops if is at the start of a copy of
 'string' where characters are compared without case sensitivity, and
@@ -3285,6 +3290,7 @@ dict_strip_comments(
 	}
 }
 
+#ifndef UNIV_HOTBACKUP
 /*********************************************************************//**
 Finds the highest [number] for foreign key constraints of the table. Looks
 only at the >= 4.0.18-format id's, which are of the form
@@ -4121,7 +4127,7 @@ dict_foreign_parse_drop_constraints(
 }
 
 /*==================== END OF FOREIGN KEY PROCESSING ====================*/
-
+#endif /* !UNIV_HOTBACKUP */
 /**********************************************************************//**
 Returns an index object if it is found in the dictionary cache.
 Assumes that dict_sys->mutex is already being held.
@@ -4654,12 +4660,6 @@ dict_store_statistics(
 	}
 	btr_pcur_close(&pcur);
 	mtr_commit(&mtr);
-
-	if (rests) {
-		fprintf(stderr, "InnoDB: Warning: failed to store %lu stats entries"
-				" of %s/%s to SYS_STATS system table.\n",
-				rests, index->table_name, index->name);
-	}
 }
 /*===========================================*/
 
@@ -4895,6 +4895,7 @@ dict_is_older_statistics(
 	}
 }
 
+#ifndef UNIV_HOTBACKUP
 /**********************************************************************//**
 Prints info of a foreign key constraint. */
 static
@@ -4925,6 +4926,7 @@ dict_foreign_print_low(
 	fputs(" )\n", stderr);
 }
 
+#endif /* !UNIV_HOTBACKUP */
 /**********************************************************************//**
 Prints a table data. */
 UNIV_INTERN
@@ -5107,6 +5109,7 @@ dict_field_print_low(
 	}
 }
 
+#ifndef UNIV_HOTBACKUP
 /**********************************************************************//**
 Outputs info on a foreign key of a table in a format suitable for
 CREATE TABLE. */
@@ -5295,6 +5298,7 @@ dict_print_info_on_foreign_keys(
 	mutex_exit(&(dict_sys->mutex));
 }
 
+#endif /* !UNIV_HOTBACKUP */
 /********************************************************************//**
 Displays the names of the index and the table. */
 UNIV_INTERN
@@ -5425,6 +5429,28 @@ dict_table_replace_index_in_foreign_list(
 			foreign->foreign_index = new_index;
 		}
 	}
+
+
+	for (foreign = UT_LIST_GET_FIRST(table->referenced_list);
+	     foreign;
+	     foreign = UT_LIST_GET_NEXT(referenced_list, foreign)) {
+
+		dict_index_t*	new_index;
+
+		if (foreign->referenced_index == index) {
+			ut_ad(foreign->referenced_table == index->table);
+
+			new_index = dict_foreign_find_index(
+				foreign->referenced_table,
+				foreign->referenced_col_names,
+				foreign->n_fields, index,
+				/*check_charsets=*/TRUE, /*check_null=*/FALSE);
+			ut_ad(new_index || !trx->check_foreigns);
+			ut_ad(!new_index || new_index->table == index->table);
+
+			foreign->referenced_index = new_index;
+		}
+	}
 }
 
 /**********************************************************************//**

storage/xtradb/dict/dict0mem.c

@@ -33,8 +33,8 @@ Created 1/8/1996 Heikki Tuuri
 #include "data0type.h"
 #include "mach0data.h"
 #include "dict0dict.h"
-#include "ha_prototypes.h" /* innobase_casedn_str()*/
 #ifndef UNIV_HOTBACKUP
+# include "ha_prototypes.h" /* innobase_casedn_str()*/
 # include "lock0lock.h"
 #endif /* !UNIV_HOTBACKUP */
 #ifdef UNIV_BLOB_DEBUG
@@ -274,6 +274,7 @@ dict_mem_index_create(
 	return(index);
 }
 
+#ifndef UNIV_HOTBACKUP
 /**********************************************************************//**
 Creates and initializes a foreign constraint memory object.
 @return	own: foreign constraint struct */
@@ -348,6 +349,7 @@ dict_mem_referenced_table_name_lookup_set(
 	}
 }
 
+#endif /* !UNIV_HOTBACKUP */
 /**********************************************************************//**
 Adds a field definition to an index. NOTE: does not take a copy
 of the column name if the field is a column. The memory occupied

storage/xtradb/fil/fil0fil.c

@@ -867,8 +867,10 @@ fil_node_close_file(
 	ut_a(node->open);
 	ut_a(node->n_pending == 0 || node->space->is_being_deleted);
 	ut_a(node->n_pending_flushes == 0);
+#ifndef UNIV_HOTBACKUP
 	ut_a(node->modification_counter == node->flush_counter
 	     || srv_fast_shutdown == 2);
+#endif /* !UNIV_HOTBACKUP */
 
 	ret = os_file_close(node->handle);
 	ut_a(ret);

storage/xtradb/ha/ha0ha.c

@@ -28,6 +28,7 @@ Created 8/22/1994 Heikki Tuuri
 #include "ha0ha.ic"
 #endif
 
+#ifndef UNIV_HOTBACKUP
 #ifdef UNIV_DEBUG
 # include "buf0buf.h"
 #endif /* UNIV_DEBUG */
@@ -51,17 +52,13 @@ ha_create_func(
 				hash table: must be a power of 2, or 0 */
 {
 	hash_table_t*	table;
-#ifndef UNIV_HOTBACKUP
 	ulint		i;
-#endif /* !UNIV_HOTBACKUP */
 
 	ut_ad(ut_is_2pow(n_mutexes));
 	table = hash_create(n);
 
 #if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
-# ifndef UNIV_HOTBACKUP
 	table->adaptive = TRUE;
-# endif /* !UNIV_HOTBACKUP */
 #endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
 	/* Creating MEM_HEAP_BTR_SEARCH type heaps can potentially fail,
 	but in practise it never should in this case, hence the asserts. */
@@ -74,7 +71,6 @@ ha_create_func(
 		return(table);
 	}
 
-#ifndef UNIV_HOTBACKUP
 	hash_create_mutexes(table, n_mutexes, mutex_level);
 
 	table->heaps = mem_alloc(n_mutexes * sizeof(void*));
@@ -83,7 +79,6 @@ ha_create_func(
 		table->heaps[i] = mem_heap_create_in_btr_search(4096);
 		ut_a(table->heaps[i]);
 	}
-#endif /* !UNIV_HOTBACKUP */
 
 	return(table);
 }
@@ -134,7 +129,6 @@ ha_insert_for_fold_func(
 	while (prev_node != NULL) {
 		if (prev_node->fold == fold) {
 #if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
-# ifndef UNIV_HOTBACKUP
 			if (table->adaptive) {
 				buf_block_t* prev_block = prev_node->block;
 				ut_a(prev_block->frame
@@ -143,7 +137,6 @@ ha_insert_for_fold_func(
 				prev_block->n_pointers--;
 				block->n_pointers++;
 			}
-# endif /* !UNIV_HOTBACKUP */
 
 			prev_node->block = block;
 #endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
@@ -171,11 +164,9 @@ ha_insert_for_fold_func(
 	ha_node_set_data(node, block, data);
 
 #if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
-# ifndef UNIV_HOTBACKUP
 	if (table->adaptive) {
 		block->n_pointers++;
 	}
-# endif /* !UNIV_HOTBACKUP */
 #endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
 
 	node->fold = fold;
@@ -217,13 +208,11 @@ ha_delete_hash_node(
 #endif /* UNIV_SYNC_DEBUG */
 	ut_ad(btr_search_enabled);
 #if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
-# ifndef UNIV_HOTBACKUP
 	if (table->adaptive) {
 		ut_a(del_node->block->frame = page_align(del_node->data));
 		ut_a(del_node->block->n_pointers > 0);
 		del_node->block->n_pointers--;
 	}
-# endif /* !UNIV_HOTBACKUP */
 #endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
 
 	HASH_DELETE_AND_COMPACT(ha_node_t, next, table, del_node);
@@ -264,13 +253,11 @@ ha_search_and_update_if_found_func(
 
 	if (node) {
 #if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
-# ifndef UNIV_HOTBACKUP
 		if (table->adaptive) {
 			ut_a(node->block->n_pointers > 0);
 			node->block->n_pointers--;
 			new_block->n_pointers++;
 		}
-# endif /* !UNIV_HOTBACKUP */
 
 		node->block = new_block;
 #endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
@@ -278,7 +265,6 @@ ha_search_and_update_if_found_func(
 	}
 }
 
-#ifndef UNIV_HOTBACKUP
 /*****************************************************************//**
 Removes from the chain determined by fold all nodes whose data pointer
 points to the page given. */

storage/xtradb/handler/ha_innodb.cc

@@ -49,6 +49,7 @@ this program; if not, write to the Free Software Foundation, Inc.,
 
 #include <sql_acl.h>	// PROCESS_ACL
 #include <m_ctype.h>
+#include <debug_sync.h> // DEBUG_SYNC
 #include <mysys_err.h>
 #include <mysql/plugin.h>
 #include <innodb_priv.h>
@@ -494,6 +495,9 @@ static MYSQL_THDVAR_BOOL(fake_changes, PLUGIN_VAR_OPCMDARG,
   "This is to cause replication prefetch IO. ATTENTION: the transaction started after enabled is affected.",
   NULL, NULL, FALSE);
 
+static MYSQL_THDVAR_ULONG(merge_sort_block_size, PLUGIN_VAR_RQCMDARG,
+  "The block size used doing external merge-sort for secondary index creation.",
+  NULL, NULL, 1UL << 20, 1UL << 20, 1UL << 30, 0);
 
 static handler *innobase_create_handler(handlerton *hton,
                                         TABLE_SHARE *table,
@@ -1010,6 +1014,20 @@ thd_flush_log_at_trx_commit(
 	return(THDVAR((THD*) thd, flush_log_at_trx_commit));
 }
 
+/******************************************************************//**
+Returns the merge-sort block size used for the secondary index creation
+for the current connection.
+@return	the merge-sort block size, in bytes */
+extern "C" UNIV_INTERN
+ulong
+thd_merge_sort_block_size(
+/*================================*/
+	void*	thd)	/*!< in: thread handle (THD*), or NULL to query
++			the global merge_sort_block_size */
+{
+	return(THDVAR((THD*) thd, merge_sort_block_size));
+}
+
 /********************************************************************//**
 Obtain the InnoDB transaction of a MySQL thread.
 @return	reference to transaction pointer */
@@ -2870,6 +2888,7 @@ innobase_init(
 
 	srv_read_ahead &= 3;
 	srv_adaptive_flushing_method %= 3;
+	srv_flush_neighbor_pages %= 3;
 
 	srv_force_recovery = (ulint) innobase_force_recovery;
 
@@ -6688,6 +6707,7 @@ ha_innobase::index_read(
 	ulint		ret;
 
 	DBUG_ENTER("index_read");
+	DEBUG_SYNC_C("ha_innobase_index_read_begin");
 
 	ut_a(prebuilt->trx == thd_to_trx(user_thd));
 	ut_ad(key_len != 0 || find_flag != HA_READ_KEY_EXACT);
@@ -8578,6 +8598,8 @@ ha_innobase::rename_table(
 
 	error = innobase_rename_table(trx, from, to, TRUE);
 
+	DEBUG_SYNC(thd, "after_innobase_rename_table");
+
 	/* Tell the InnoDB server that there might be work for
 	utility threads: */
 
@@ -8905,10 +8927,15 @@ innobase_get_mysql_key_number_for_index(
 			}
 		}
 
-		/* Print an error message if we cannot find the index
-		** in the "index translation table". */
-		sql_print_error("Cannot find index %s in InnoDB index "
-				"translation table.", index->name);
+		/* If index_count in translation table is set to 0, it
+		is possible we are in the process of rebuilding table,
+		do not spit error in this case */
+		if (share->idx_trans_tbl.index_count) {
+			/* Print an error message if we cannot find the index
+			** in the "index translation table". */
+			sql_print_error("Cannot find index %s in InnoDB index "
+					"translation table.", index->name);
+		}
 	}
 
 	/* If we do not have an "index translation table", or not able
@@ -12411,7 +12438,7 @@ static MYSQL_SYSVAR_BOOL(doublewrite, innobase_use_doublewrite,
 static MYSQL_SYSVAR_ULONG(io_capacity, srv_io_capacity,
   PLUGIN_VAR_RQCMDARG,
   "Number of IOPs the server can do. Tunes the background IO rate",
-  NULL, NULL, 200, 100, ~ (ulong) 0L, 0);
+  NULL, NULL, 200, 100, ~0UL, 0);
 
 static MYSQL_SYSVAR_ULONG(purge_batch_size, srv_purge_batch_size,
   PLUGIN_VAR_OPCMDARG,
@@ -12544,7 +12571,7 @@ static MYSQL_SYSVAR_BOOL(adaptive_flushing, srv_adaptive_flushing,
 static MYSQL_SYSVAR_ULONG(max_purge_lag, srv_max_purge_lag,
   PLUGIN_VAR_RQCMDARG,
   "Desired maximum length of the purge queue (0 = no limit)",
-  NULL, NULL, 0, 0, ~(ulong) 0L, 0);
+  NULL, NULL, 0, 0, ~0UL, 0);
 
 static MYSQL_SYSVAR_BOOL(rollback_on_timeout, innobase_rollback_on_timeout,
   PLUGIN_VAR_OPCMDARG | PLUGIN_VAR_READONLY,
@@ -12648,7 +12675,7 @@ static MYSQL_SYSVAR_ULONG(commit_concurrency, innobase_commit_concurrency,
 static MYSQL_SYSVAR_ULONG(concurrency_tickets, srv_n_free_tickets_to_enter,
   PLUGIN_VAR_RQCMDARG,
   "Number of times a thread is allowed to enter InnoDB within the same SQL query after it has once got the ticket",
-  NULL, NULL, 500L, 1L, ~(ulong) 0L, 0);
+  NULL, NULL, 500L, 1L, ~0UL, 0);
 
 #ifdef EXTENDED_FOR_KILLIDLE
 #define kill_idle_help_text "If non-zero value, the idle session with transaction which is idle over the value in seconds is killed by InnoDB."
@@ -12718,12 +12745,12 @@ static MYSQL_SYSVAR_LONG(open_files, innobase_open_files,
 static MYSQL_SYSVAR_ULONG(sync_spin_loops, srv_n_spin_wait_rounds,
   PLUGIN_VAR_RQCMDARG,
   "Count of spin-loop rounds in InnoDB mutexes (30 by default)",
-  NULL, NULL, 30L, 0L, ~ (ulong) 0L, 0);
+  NULL, NULL, 30L, 0L, ~0UL, 0);
 
 static MYSQL_SYSVAR_ULONG(spin_wait_delay, srv_spin_wait_delay,
   PLUGIN_VAR_OPCMDARG,
   "Maximum delay between polling for a spin lock (6 by default)",
-  NULL, NULL, 6L, 0L, ~ (ulong) 0L, 0);
+  NULL, NULL, 6L, 0L, ~0UL, 0);
 
 static MYSQL_SYSVAR_BOOL(thread_concurrency_timer_based,
   innobase_thread_concurrency_timer_based,
@@ -12739,7 +12766,7 @@ static MYSQL_SYSVAR_ULONG(thread_concurrency, srv_thread_concurrency,
 static MYSQL_SYSVAR_ULONG(thread_sleep_delay, srv_thread_sleep_delay,
   PLUGIN_VAR_RQCMDARG,
   "Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0 disable a sleep",
-  NULL, NULL, 10000L, 0L, ~ (ulong) 0L, 0);
+  NULL, NULL, 10000L, 0L, ~0UL, 0);
 
 static MYSQL_SYSVAR_STR(data_file_path, innobase_data_file_path,
   PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
@@ -12914,7 +12941,7 @@ innodb_adaptive_flushing_method_update(
   void*        var_ptr,
   const void*  save)
 {
-  *(long *)var_ptr= (*(long *)save) % 4;
+  *(long *)var_ptr= (*(long *)save) % 3;
 }
 const char *adaptive_flushing_method_names[]=
 {
@@ -13092,6 +13119,7 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
   MYSQL_SYSVAR(corrupt_table_action),
   MYSQL_SYSVAR(lazy_drop_table),
   MYSQL_SYSVAR(fake_changes),
+  MYSQL_SYSVAR(merge_sort_block_size),
   NULL
 };
 
@@ -13112,6 +13140,7 @@ maria_declare_plugin(xtradb)
   MariaDB_PLUGIN_MATURITY_STABLE /* maturity */
 },
 i_s_innodb_rseg_maria,
+i_s_innodb_undo_logs_maria,
 i_s_innodb_trx_maria,
 i_s_innodb_locks_maria,
 i_s_innodb_lock_waits_maria,

storage/xtradb/handler/handler0alter.cc

@@ -713,6 +713,10 @@ ha_innobase::add_index(
 
 	ut_a(indexed_table == prebuilt->table);
 
+	if (indexed_table->tablespace_discarded) {
+		DBUG_RETURN(-1);
+	}
+
 	/* Check that index keys are sensible */
 	error = innobase_check_index_keys(key_info, num_of_keys, prebuilt->table);
 
@@ -781,7 +785,7 @@ ha_innobase::add_index(
 	row_mysql_lock_data_dictionary(trx);
 	dict_locked = TRUE;
 
-	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, FALSE));
+	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, TRUE));
 
 	/* If a new primary key is defined for the table we need
 	to drop the original table and rebuild all indexes. */
@@ -817,7 +821,7 @@ ha_innobase::add_index(
 			}
 
 			ut_d(dict_table_check_for_dup_indexes(prebuilt->table,
-							      FALSE));
+							      TRUE));
 			mem_heap_free(heap);
 			trx_general_rollback_for_mysql(trx, NULL);
 			row_mysql_unlock_data_dictionary(trx);
@@ -1071,7 +1075,7 @@ ha_innobase::final_add_index(
 		trx_commit_for_mysql(prebuilt->trx);
 	}
 
-	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, FALSE));
+	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, TRUE));
 	row_mysql_unlock_data_dictionary(trx);
 
 	trx_free_for_mysql(trx);
@@ -1118,7 +1122,7 @@ ha_innobase::prepare_drop_index(
 	/* Test and mark all the indexes to be dropped */
 
 	row_mysql_lock_data_dictionary(trx);
-	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, FALSE));
+	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, TRUE));
 
 	/* Check that none of the indexes have previously been flagged
 	for deletion. */
@@ -1289,7 +1293,7 @@ ha_innobase::prepare_drop_index(
 		} while (index);
 	}
 
-	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, FALSE));
+	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, TRUE));
 	row_mysql_unlock_data_dictionary(trx);
 
 	DBUG_RETURN(err);
@@ -1342,7 +1346,7 @@ ha_innobase::final_drop_index(
 		prebuilt->table->flags, user_thd);
 
 	row_mysql_lock_data_dictionary(trx);
-	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, FALSE));
+	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, TRUE));
 
 	if (UNIV_UNLIKELY(err)) {
 
@@ -1386,7 +1390,7 @@ ha_innobase::final_drop_index(
 	share->idx_trans_tbl.index_count = 0;
 
 func_exit:
-	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, FALSE));
+	ut_d(dict_table_check_for_dup_indexes(prebuilt->table, TRUE));
 	trx_commit_for_mysql(trx);
 	trx_commit_for_mysql(prebuilt->trx);
 	row_mysql_unlock_data_dictionary(trx);

storage/xtradb/handler/i_s.cc

@@ -49,6 +49,7 @@ extern "C" {
 #include "trx0i_s.h"
 #include "trx0trx.h" /* for TRX_QUE_STATE_STR_MAX_LEN */
 #include "trx0rseg.h" /* for trx_rseg_struct */
+#include "trx0undo.h" /* for trx_undo_struct */
 #include "trx0sys.h" /* for trx_sys */
 #include "dict0dict.h" /* for dict_sys */
 #include "buf0lru.h" /* for XTRA_LRU_[DUMP/RESTORE] */
@@ -4437,3 +4438,292 @@ UNIV_INTERN struct st_maria_plugin	i_s_innodb_buffer_pool_pages_blob_maria =
   NULL,
   INNODB_VERSION_STR, MariaDB_PLUGIN_MATURITY_STABLE
 };
+
+
+static ST_FIELD_INFO	i_s_innodb_undo_logs_fields_info[] =
+{
+#define IDX_USEG_TRX_ID 0
+	{STRUCT_FLD(field_name,		"trx_id"),
+	 STRUCT_FLD(field_length,	TRX_ID_MAX_LEN + 1),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_USEG_RSEG_ID 1
+	{STRUCT_FLD(field_name,		"rseg_id"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_USEG_USEG_ID 2
+	{STRUCT_FLD(field_name,		"useg_id"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_USEG_TYPE 3
+#define USEG_TYPE_MAX_LEN 256
+	{STRUCT_FLD(field_name,		"type"),
+	 STRUCT_FLD(field_length,	USEG_TYPE_MAX_LEN),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+	 
+ #define IDX_USEG_STATE 4
+ #define USEG_STATE_MAX_LEN 256
+	{STRUCT_FLD(field_name,		"state"),
+	 STRUCT_FLD(field_length,	USEG_STATE_MAX_LEN),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+	 
+#define IDX_USEG_SIZE 5
+	{STRUCT_FLD(field_name,		"size"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+static
+int
+i_s_innodb_undo_logs_fill_store(
+/*=================*/
+	THD*		thd,	/* in: thread */
+	TABLE*		table,	/* in/out: table to fill */
+	trx_undo_t*	useg)	/* in: useg to fill from */
+{
+	char		trx_id[TRX_ID_MAX_LEN + 1];
+
+	DBUG_ENTER("i_s_innodb_undo_logs_fill_store");
+
+	switch (useg->type) {
+	case TRX_UNDO_INSERT:
+		OK(field_store_string(table->field[IDX_USEG_TYPE], "INSERT"));		
+		break;
+	case TRX_UNDO_UPDATE:
+		OK(field_store_string(table->field[IDX_USEG_TYPE], "UPDATE"));		
+		break;
+	default:
+		OK(field_store_string(table->field[IDX_USEG_TYPE], "UNKNOWN"));		
+		break;
+	}
+
+	ut_snprintf(trx_id, sizeof(trx_id), TRX_ID_FMT, useg->trx_id);
+
+	switch (useg->state) {
+	case TRX_UNDO_ACTIVE:
+		OK(field_store_string(table->field[IDX_USEG_TRX_ID], trx_id));
+		OK(field_store_string(table->field[IDX_USEG_STATE], "ACTIVE"));		
+		break;
+	case TRX_UNDO_CACHED:
+		OK(field_store_string(table->field[IDX_USEG_TRX_ID], NULL));
+		OK(field_store_string(table->field[IDX_USEG_STATE], "CACHED"));		
+		break;
+	case TRX_UNDO_TO_FREE:
+		OK(field_store_string(table->field[IDX_USEG_TRX_ID], NULL));
+		OK(field_store_string(table->field[IDX_USEG_STATE], "TO_FREE"));		
+		break;
+	case TRX_UNDO_TO_PURGE:
+		OK(field_store_string(table->field[IDX_USEG_TRX_ID], NULL));
+		OK(field_store_string(table->field[IDX_USEG_STATE], "TO_PURGE"));		
+		break;
+	case TRX_UNDO_PREPARED:
+		OK(field_store_string(table->field[IDX_USEG_TRX_ID], trx_id));
+		OK(field_store_string(table->field[IDX_USEG_STATE], "PREPARED"));		
+		break;
+	default:
+		OK(field_store_string(table->field[IDX_USEG_TRX_ID], trx_id));
+		OK(field_store_string(table->field[IDX_USEG_STATE], "UNKNOWN"));		
+		break;
+	}
+
+	table->field[IDX_USEG_RSEG_ID]->store(useg->rseg->id);
+	table->field[IDX_USEG_USEG_ID]->store(useg->id);
+	table->field[IDX_USEG_SIZE]->store(useg->size);
+	if (schema_table_store_record(thd, table)) {
+		DBUG_RETURN(1);
+	}
+	DBUG_RETURN(0);
+}
+static
+int
+i_s_innodb_undo_logs_fill(
+/*=================*/
+	THD*		thd,	/* in: thread */
+	TABLE_LIST*	tables,	/* in/out: tables to fill */
+	COND*		cond)	/* in: condition (ignored) */
+{
+	TABLE*	table	= (TABLE *) tables->table;
+	int	status	= 0;
+	trx_rseg_t*	rseg;
+	trx_undo_t*	useg;
+
+	DBUG_ENTER("i_s_innodb_undo_logs_fill");
+
+	/* deny access to non-superusers */
+	if (check_global_access(thd, PROCESS_ACL)) {
+		DBUG_RETURN(0);
+	}
+
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
+	rseg = UT_LIST_GET_FIRST(trx_sys->rseg_list);
+	while (rseg && status == 0) {
+		mutex_enter(&(rseg->mutex));
+		useg = UT_LIST_GET_FIRST(rseg->update_undo_list);
+		while (useg && status == 0) {
+			status = i_s_innodb_undo_logs_fill_store(thd, table, useg);
+			useg = UT_LIST_GET_NEXT(undo_list, useg);
+		}
+
+		useg = UT_LIST_GET_FIRST(rseg->update_undo_cached);
+		while (useg && status == 0) {
+			status = i_s_innodb_undo_logs_fill_store(thd, table, useg);
+			useg = UT_LIST_GET_NEXT(undo_list, useg);
+		}
+
+		useg = UT_LIST_GET_FIRST(rseg->insert_undo_list);
+		while (useg && status == 0) {
+			status = i_s_innodb_undo_logs_fill_store(thd, table, useg);
+			useg = UT_LIST_GET_NEXT(undo_list, useg);
+		}
+
+		useg = UT_LIST_GET_FIRST(rseg->insert_undo_cached);
+		while (useg && status == 0) {
+			status = i_s_innodb_undo_logs_fill_store(thd, table, useg);
+			useg = UT_LIST_GET_NEXT(undo_list, useg);
+		}
+		mutex_exit(&(rseg->mutex));
+		rseg = UT_LIST_GET_NEXT(rseg_list, rseg);
+	}
+
+	DBUG_RETURN(status);
+}
+
+static
+int
+i_s_innodb_undo_logs_init(
+/*=================*/
+			/* out: 0 on success */
+	void*	p)	/* in/out: table schema object */
+{
+	DBUG_ENTER("i_s_innodb_undo_logs_init");
+	ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
+
+	schema->fields_info = i_s_innodb_undo_logs_fields_info;
+	schema->fill_table = i_s_innodb_undo_logs_fill;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin	i_s_innodb_undo_logs =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_UNDO_LOGS"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, "Percona"),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB rollback undo segment information"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_undo_logs_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	STRUCT_FLD(version, 0x0100 /* 1.0 */),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+	/* reserved for dependency checking */
+	/* void* */
+	STRUCT_FLD(__reserved1, NULL),
+
+	/* Plugin flags */
+	/* unsigned long */
+	STRUCT_FLD(flags, 0UL),
+};
+
+UNIV_INTERN struct st_maria_plugin	i_s_innodb_undo_logs_maria =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_UNDO_LOGS"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, "Percona"),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB rollback undo segment information"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_undo_logs_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	STRUCT_FLD(version, 0x0100 /* 1.0 */),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+        INNODB_VERSION_STR, MariaDB_PLUGIN_MATURITY_STABLE
+};

storage/xtradb/handler/i_s.h

@@ -43,6 +43,7 @@ extern struct st_mysql_plugin   i_s_innodb_sys_fields;
 extern struct st_mysql_plugin   i_s_innodb_sys_foreign;
 extern struct st_mysql_plugin   i_s_innodb_sys_foreign_cols;
 extern struct st_mysql_plugin	i_s_innodb_rseg;
+extern struct st_mysql_plugin	i_s_innodb_undo_logs;
 extern struct st_mysql_plugin	i_s_innodb_sys_stats;
 extern struct st_mysql_plugin	i_s_innodb_table_stats;
 extern struct st_mysql_plugin	i_s_innodb_index_stats;
@@ -67,6 +68,7 @@ extern struct st_maria_plugin	i_s_innodb_sys_foreign_maria;
 extern struct st_maria_plugin	i_s_innodb_sys_foreign_cols_maria;
 extern struct st_maria_plugin	i_s_innodb_sys_stats_maria;
 extern struct st_maria_plugin	i_s_innodb_rseg_maria;
+extern struct st_maria_plugin	i_s_innodb_undo_logs_maria;
 extern struct st_maria_plugin	i_s_innodb_table_stats_maria;
 extern struct st_maria_plugin	i_s_innodb_index_stats_maria;
 extern struct st_maria_plugin	i_s_innodb_admin_command_maria;

storage/xtradb/include/btr0btr.h

@@ -92,6 +92,8 @@ insert/delete buffer when the record is not in the buffer pool. */
 buffer when the record is not in the buffer pool. */
 #define BTR_DELETE		8192
 
+#endif /* UNIV_HOTBACKUP */
+
 /**************************************************************//**
 Report that an index page is corrupted. */
 UNIV_INTERN
@@ -112,6 +114,7 @@ btr_corruption_report(
 		ut_error;					\
 	}
 
+#ifndef UNIV_HOTBACKUP
 #ifdef UNIV_BLOB_DEBUG
 # include "ut0rbt.h"
 /** An index->blobs entry for keeping track of off-page column references */

storage/xtradb/include/btr0types.h

@@ -39,6 +39,8 @@ typedef struct btr_cur_struct		btr_cur_t;
 /** B-tree search information for the adaptive hash index */
 typedef struct btr_search_struct	btr_search_t;
 
+#ifndef UNIV_HOTBACKUP
+
 /** @brief The latch protecting the adaptive search system
 
 This latch protects the
@@ -56,6 +58,8 @@ Bear in mind (3) and (4) when using the hash index.
 
 extern rw_lock_t**	btr_search_latch_part;
 
+#endif /* UNIV_HOTBACKUP */
+
 /** The latch protecting the adaptive search system */
 //#define btr_search_latch	(*btr_search_latch_temp)
 

storage/xtradb/include/buf0buf.h

@@ -608,34 +608,34 @@ ib_uint64_t
 buf_block_get_modify_clock(
 /*=======================*/
 	buf_block_t*	block);	/*!< in: block */
-#else /* !UNIV_HOTBACKUP */
-# define buf_block_modify_clock_inc(block) ((void) 0)
-#endif /* !UNIV_HOTBACKUP */
 /*******************************************************************//**
 Increments the bufferfix count. */
 UNIV_INLINE
 void
 buf_block_buf_fix_inc_func(
 /*=======================*/
-#ifdef UNIV_SYNC_DEBUG
+# ifdef UNIV_SYNC_DEBUG
 	const char*	file,	/*!< in: file name */
 	ulint		line,	/*!< in: line */
-#endif /* UNIV_SYNC_DEBUG */
+# endif /* UNIV_SYNC_DEBUG */
 	buf_block_t*	block)	/*!< in/out: block to bufferfix */
 	__attribute__((nonnull));
-#ifdef UNIV_SYNC_DEBUG
+# ifdef UNIV_SYNC_DEBUG
 /** Increments the bufferfix count.
 @param b	in/out: block to bufferfix
 @param f	in: file name where requested
 @param l	in: line number where requested */
 # define buf_block_buf_fix_inc(b,f,l) buf_block_buf_fix_inc_func(f,l,b)
-#else /* UNIV_SYNC_DEBUG */
+# else /* UNIV_SYNC_DEBUG */
 /** Increments the bufferfix count.
 @param b	in/out: block to bufferfix
 @param f	in: file name where requested
 @param l	in: line number where requested */
 # define buf_block_buf_fix_inc(b,f,l) buf_block_buf_fix_inc_func(b)
-#endif /* UNIV_SYNC_DEBUG */
+# endif /* UNIV_SYNC_DEBUG */
+#else /* !UNIV_HOTBACKUP */
+# define buf_block_modify_clock_inc(block) ((void) 0)
+#endif /* !UNIV_HOTBACKUP */
 /********************************************************************//**
 Calculates a page checksum which is stored to the page when it is written
 to a file. Note that we must be careful to calculate the same value
@@ -1193,9 +1193,10 @@ buf_page_init_for_read(
 	ulint		offset);/*!< in: page number */
 /********************************************************************//**
 Completes an asynchronous read or write request of a file page to or from
-the buffer pool. */
+the buffer pool.
+@return TRUE if successful */
 UNIV_INTERN
-void
+ibool
 buf_page_io_complete(
 /*=================*/
 	buf_page_t*	bpage);	/*!< in: pointer to the block in question */

storage/xtradb/include/buf0buf.ic

@@ -31,6 +31,7 @@ Created 11/5/1995 Heikki Tuuri
 *******************************************************/
 
 #include "mtr0mtr.h"
+#ifndef UNIV_HOTBACKUP
 #include "buf0flu.h"
 #include "buf0lru.h"
 #include "buf0rea.h"
@@ -180,6 +181,7 @@ buf_page_peek_if_too_old(
 		return(!buf_page_peek_if_young(bpage));
 	}
 }
+#endif /* !UNIV_HOTBACKUP */
 
 /*********************************************************************//**
 Gets the state of a block.

storage/xtradb/include/dict0dict.h

@@ -750,6 +750,7 @@ ulint
 dict_table_zip_size(
 /*================*/
 	const dict_table_t*	table);	/*!< in: table */
+#ifndef UNIV_HOTBACKUP
 /*********************************************************************//**
 Obtain exclusive locks on all index trees of the table. This is to prevent
 accessing index trees while InnoDB is updating internal metadata for
@@ -766,6 +767,7 @@ void
 dict_table_x_unlock_indexes(
 /*========================*/
 	dict_table_t*	table);	/*!< in: table */
+#endif /* !UNIV_HOTBACKUP */
 /********************************************************************//**
 Checks if a column is in the ordering columns of the clustered index of a
 table. Column prefixes are treated like whole columns.
@@ -1278,7 +1280,7 @@ UNIV_INTERN
 void
 dict_close(void);
 /*============*/
-
+#ifndef UNIV_HOTBACKUP
 /**********************************************************************//**
 Check whether the table is corrupted.
 @return	nonzero for corrupted table, zero for valid tables */
@@ -1299,6 +1301,7 @@ dict_index_is_corrupted(
 	const dict_index_t*	index)	/*!< in: index */
 	__attribute__((nonnull, pure, warn_unused_result));
 
+#endif /* !UNIV_HOTBACKUP */
 /**********************************************************************//**
 Flags an index and table corrupted both in the data dictionary cache
 and in the system table SYS_INDEXES. */

storage/xtradb/include/dict0dict.ic

@@ -491,6 +491,7 @@ dict_table_zip_size(
 	return(dict_table_flags_to_zip_size(table->flags));
 }
 
+#ifndef UNIV_HOTBACKUP
 /*********************************************************************//**
 Obtain exclusive locks on all index trees of the table. This is to prevent
 accessing index trees while InnoDB is updating internal metadata for
@@ -533,6 +534,7 @@ dict_table_x_unlock_indexes(
 		rw_lock_x_unlock(dict_index_get_lock(index));
 	}
 }
+#endif /* !UNIV_HOTBACKUP */
 /********************************************************************//**
 Gets the number of fields in the internal representation of an index,
 including fields added by the dictionary system.

storage/xtradb/include/ha_prototypes.h

@@ -312,4 +312,15 @@ innobase_get_lower_case_table_names(void);
 /*=====================================*/
 
 
+/********************************************************************//**
+Returns the merge-sort block size used for the secondary index creation
+for the current connection.
+@return the merge-sort block size, in bytes */
+
+ulong
+thd_merge_sort_block_size(
+/*======================*/
+	void* thd); /*!< in: thread handle (THD*), or NULL to query
+			the global merge_sort_block_size */
+
 #endif

storage/xtradb/include/log0log.h

@@ -780,7 +780,6 @@ struct log_struct{
 					buffer */
 #ifndef UNIV_HOTBACKUP
 	mutex_t		mutex;		/*!< mutex protecting the log */
-#endif /* !UNIV_HOTBACKUP */
 
 	mutex_t		log_flush_order_mutex;/*!< mutex to serialize access to
 					the flush list when we are putting
@@ -790,6 +789,7 @@ struct log_struct{
 					mtr_commit and still ensure that
 					insertions in the flush_list happen
 					in the LSN order. */
+#endif /* !UNIV_HOTBACKUP */
 	byte*		buf_ptr;	/* unaligned log buffer */
 	byte*		buf;		/*!< log buffer */
 	ulint		buf_size;	/*!< log buffer size in bytes */

storage/xtradb/include/os0file.h

@@ -316,7 +316,7 @@ to original un-instrumented file I/O APIs */
 	os_file_create_func(name, create, purpose, type, success)
 
 # define os_file_create_simple(key, name, create, access, success)	\
-	os_file_create_simple_func(name, create_mode, access, success)
+	os_file_create_simple_func(name, create, access, success)
 
 # define os_file_create_simple_no_error_handling(			\
 		key, name, create_mode, access, success)		\

storage/xtradb/include/srv0srv.h

@@ -117,13 +117,13 @@ extern ulint	srv_max_file_format_at_startup;
 /** Place locks to records only i.e. do not use next-key locking except
 on duplicate key checking and foreign key checking */
 extern ibool	srv_locks_unsafe_for_binlog;
-#endif /* !UNIV_HOTBACKUP */
 
 /* If this flag is TRUE, then we will use the native aio of the
 OS (provided we compiled Innobase with it in), otherwise we will
 use simulated aio we build below with threads.
 Currently we support native aio on windows and linux */
 extern my_bool	srv_use_native_aio;
+#endif /* !UNIV_HOTBACKUP */
 #ifdef __WIN__
 extern ibool	srv_use_native_conditions;
 #endif

storage/xtradb/include/trx0sys.h

@@ -248,7 +248,6 @@ UNIV_INLINE
 trx_id_t
 trx_sys_get_new_trx_id(void);
 /*========================*/
-#endif /* !UNIV_HOTBACKUP */
 
 #ifdef UNIV_DEBUG
 /* Flag to control TRX_RSEG_N_SLOTS behavior debugging. */
@@ -265,7 +264,6 @@ trx_write_trx_id(
 /*=============*/
 	byte*		ptr,	/*!< in: pointer to memory where written */
 	trx_id_t	id);	/*!< in: id */
-#ifndef UNIV_HOTBACKUP
 /*****************************************************************//**
 Reads a trx id from an index page. In case that the id size changes in
 some future version, this function should be used instead of
@@ -603,7 +601,6 @@ FIL_PAGE_ARCH_LOG_NO_OR_SPACE_NO. */
 #define TRX_SYS_DOUBLEWRITE_BLOCK_SIZE	FSP_EXTENT_SIZE
 /* @} */
 
-#ifndef UNIV_HOTBACKUP
 /** File format tag */
 /* @{ */
 /** The offset of the file format tag on the trx system header page
@@ -622,6 +619,7 @@ identifier is added to this 64-bit constant. */
 	 | TRX_SYS_FILE_FORMAT_TAG_MAGIC_N_LOW)
 /* @} */
 
+#ifndef UNIV_HOTBACKUP
 /** Doublewrite control struct */
 struct trx_doublewrite_struct{
 	mutex_t	mutex;		/*!< mutex protecting the first_free field and

storage/xtradb/include/univ.i

@@ -54,7 +54,7 @@ Created 1/20/1994 Heikki Tuuri
 #define INNODB_VERSION_BUGFIX	8
 
 #ifndef PERCONA_INNODB_VERSION
-#define PERCONA_INNODB_VERSION 27.0
+#define PERCONA_INNODB_VERSION 28.1
 #endif
 
 /* The following is the InnoDB version as shown in

storage/xtradb/mem/mem0dbg.c

@@ -24,7 +24,9 @@ but is included in mem0mem.* !
 Created 6/9/1994 Heikki Tuuri
 *************************************************************************/
 
-#include "ha_prototypes.h"
+#ifndef UNIV_HOTBACKUP
+# include "ha_prototypes.h"
+#endif /* !UNIV_HOTBACKUP */
 
 #ifdef UNIV_MEM_DEBUG
 # ifndef UNIV_HOTBACKUP

storage/xtradb/os/os0file.c

@@ -303,6 +303,7 @@ UNIV_INTERN ulint	os_n_pending_writes = 0;
 UNIV_INTERN ulint	os_n_pending_reads = 0;
 
 #ifdef UNIV_DEBUG
+# ifndef UNIV_HOTBACKUP
 /**********************************************************************//**
 Validates the consistency the aio system some of the time.
 @return	TRUE if ok or the check was skipped */
@@ -329,6 +330,7 @@ os_aio_validate_skip(void)
 	os_aio_validate_count = OS_AIO_VALIDATE_SKIP;
 	return(os_aio_validate());
 }
+# endif /* !UNIV_HOTBACKUP */
 #endif /* UNIV_DEBUG */
 
 #ifdef _WIN32

storage/xtradb/page/page0zip.c

@@ -4437,7 +4437,9 @@ page_zip_reorganize(
 	dict_index_t*	index,	/*!< in: index of the B-tree node */
 	mtr_t*		mtr)	/*!< in: mini-transaction */
 {
+#ifndef UNIV_HOTBACKUP
 	buf_pool_t*	buf_pool	= buf_pool_from_block(block);
+#endif /* !UNIV_HOTBACKUP */
 	page_zip_des_t*	page_zip	= buf_block_get_page_zip(block);
 	page_t*		page		= buf_block_get_frame(block);
 	buf_block_t*	temp_block;

storage/xtradb/row/row0ins.c

@@ -1281,7 +1281,8 @@ row_ins_check_foreign_constraint(
 		check_index = foreign->foreign_index;
 	}
 
-	if (check_table == NULL || check_table->ibd_file_missing) {
+	if (check_table == NULL || check_table->ibd_file_missing
+	    || check_index == NULL) {
 		if (check_ref) {
 			FILE*	ef = dict_foreign_err_file;
 
@@ -1316,9 +1317,6 @@ row_ins_check_foreign_constraint(
 		goto exit_func;
 	}
 
-	ut_a(check_table);
-	ut_a(check_index);
-
 	if (check_table != table) {
 		/* We already have a LOCK_IX on table, but not necessarily
 		on check_table */

storage/xtradb/row/row0vers.c

@@ -209,17 +209,6 @@ row_vers_impl_x_locked_off_kernel(
 		prev_trx_id = row_get_rec_trx_id(prev_version, clust_index,
 						 clust_offsets);
 
-		/* If the trx_id and prev_trx_id are different and if
-		the prev_version is marked deleted then the
-		prev_trx_id must have already committed for the trx_id
-		to be able to modify the row. Therefore, prev_trx_id
-		cannot hold any implicit lock. */
-		if (vers_del && trx_id != prev_trx_id) {
-
-			mutex_enter(&kernel_mutex);
-			break;
-		}
-
 		/* The stack of versions is locked by mtr.  Thus, it
 		is safe to fetch the prefixes for externally stored
 		columns. */

storage/xtradb/trx/trx0sys.c

@@ -137,12 +137,12 @@ UNIV_INTERN mysql_pfs_key_t	trx_doublewrite_mutex_key;
 UNIV_INTERN mysql_pfs_key_t	file_format_max_mutex_key;
 #endif /* UNIV_PFS_MUTEX */
 
+#ifndef UNIV_HOTBACKUP
 #ifdef UNIV_DEBUG
 /* Flag to control TRX_RSEG_N_SLOTS behavior debugging. */
 uint		trx_rseg_n_slots_debug = 0;
 #endif
 
-#ifndef UNIV_HOTBACKUP
 /** This is used to track the maximum file format id known to InnoDB. It's
 updated via SET GLOBAL innodb_file_format_max = 'x' or when we open
 or create a table. */

storage/xtradb/ut/ut0dbg.c

@@ -25,7 +25,9 @@ Created 1/30/1994 Heikki Tuuri
 
 #include "univ.i"
 #include "ut0dbg.h"
-#include "ha_prototypes.h"
+#ifndef UNIV_HOTBACKUP
+# include "ha_prototypes.h"
+#endif /* !UNIV_HOTBACKUP */
 
 #if defined(__GNUC__) && (__GNUC__ > 2)
 #else
@@ -56,7 +58,7 @@ ut_dbg_assertion_failed(
 	ut_print_timestamp(stderr);
 #ifdef UNIV_HOTBACKUP
 	fprintf(stderr, "  InnoDB: Assertion failure in file %s line %lu\n",
-		innobase_basename(file), line);
+		file, line);
 #else /* UNIV_HOTBACKUP */
 	fprintf(stderr,
 		"  InnoDB: Assertion failure in thread %lu"

storage/xtradb/ut/ut0ut.c

@@ -245,7 +245,9 @@ ut_print_timestamp(
 		(int)cal_tm.wMinute,
 		(int)cal_tm.wSecond);
 #else
+#ifdef HAVE_LOCALTIME_R
 	struct tm  cal_tm;
+#endif
 	struct tm* cal_tm_ptr;
 	time_t	   tm;
 
@@ -288,7 +290,9 @@ ut_sprintf_timestamp(
 		(int)cal_tm.wMinute,
 		(int)cal_tm.wSecond);
 #else
+#ifdef HAVE_LOCALTIME_R
 	struct tm  cal_tm;
+#endif
 	struct tm* cal_tm_ptr;
 	time_t	   tm;
 
@@ -333,7 +337,9 @@ ut_sprintf_timestamp_without_extra_chars(
 		(int)cal_tm.wMinute,
 		(int)cal_tm.wSecond);
 #else
+#ifdef HAVE_LOCALTIME_R
 	struct tm  cal_tm;
+#endif
 	struct tm* cal_tm_ptr;
 	time_t	   tm;
 
@@ -374,7 +380,9 @@ ut_get_year_month_day(
 	*month = (ulint)cal_tm.wMonth;
 	*day = (ulint)cal_tm.wDay;
 #else
+#ifdef HAVE_LOCALTIME_R
 	struct tm  cal_tm;
+#endif
 	struct tm* cal_tm_ptr;
 	time_t	   tm;