MDEV-14958 Merge new release of InnoDB MySQL 5.7.21 to 10.2

Two follow-up tasks were filed for MySQL 5.7.21 changes that
were not applied here:

MDEV-15179 performance_schema.file_instances does not reflect RENAME TABLE
MDEV-14222 Unnecessary 'cascade' memory allocation for every updated
row when there is no FOREIGN KEY

mysql-test/r/partition_innodb.result

@@ -900,3 +900,30 @@ SELECT b FROM t1 WHERE b = 0;
 ERROR HY000: Table definition has changed, please retry transaction
 disconnect con1;
 DROP TABLE t1;
+#
+# Bug#26390658 RENAMING A PARTITIONED TABLE DOES NOT UPDATE
+#              MYSQL.INNODB_TABLE_STATS
+#
+CREATE DATABASE test_jfg;
+CREATE TABLE test_jfg.test_jfg1 (id int(10) unsigned NOT NULL,PRIMARY
+KEY (id)) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=1;
+CREATE TABLE test_jfg.test_jfg2 (id int(10) unsigned NOT NULL,PRIMARY
+KEY (id)) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=1
+PARTITION BY RANGE ( id ) (PARTITION p1000 VALUES LESS THAN (1000)
+ENGINE = InnoDB,PARTITION pmax VALUES LESS THAN MAXVALUE ENGINE =
+InnoDB);
+SELECT database_name, table_name FROM mysql.innodb_table_stats WHERE
+database_name = 'test_jfg';
+database_name	table_name
+test_jfg	test_jfg1
+test_jfg	test_jfg2#P#p1000
+test_jfg	test_jfg2#P#pmax
+RENAME TABLE test_jfg.test_jfg1 TO test_jfg.test_jfg11;
+RENAME TABLE test_jfg.test_jfg2 TO test_jfg.test_jfg12;
+SELECT database_name, table_name FROM mysql.innodb_table_stats WHERE
+database_name = 'test_jfg';
+database_name	table_name
+test_jfg	test_jfg11
+test_jfg	test_jfg12#P#p1000
+test_jfg	test_jfg12#P#pmax
+DROP DATABASE test_jfg;

mysql-test/suite/innodb/r/innodb_buffer_pool_resize.result

@@ -0,0 +1,34 @@
+set global innodb_adaptive_hash_index=ON;
+select @@innodb_buffer_pool_size;
+@@innodb_buffer_pool_size
+8388608
+set global innodb_buffer_pool_size = 10485760;
+Warnings:
+Warning	1292	Truncated incorrect innodb_buffer_pool_size value: '10485760'
+select @@innodb_buffer_pool_size;
+@@innodb_buffer_pool_size
+16777216
+create table t1 (id int not null, val int not null default '0', primary key (id)) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
+create or replace view view0 as select 1 union all select 1;
+set @`v_id` := 0;
+set @`v_val` := 0;
+replace into t1 select (@`v_id` := (@`v_id` + 4) mod 4294967296) as id, (@`v_val` := (@`v_val` + 4) mod 4294967296) as val from view0 v0, view0 v1, view0 v2, view0 v3, view0 v4, view0 v5, view0 v6, view0 v7, view0 v8, view0 v9, view0 v10, view0 v11, view0 v12, view0 v13, view0 v14, view0 v15, view0 v16, view0 v17;
+set global innodb_buffer_pool_size = 7340032;
+Warnings:
+Warning	1292	Truncated incorrect innodb_buffer_pool_size value: '7340032'
+select @@innodb_buffer_pool_size;
+@@innodb_buffer_pool_size
+8388608
+select count(val) from t1;
+count(val)
+262144
+set global innodb_adaptive_hash_index=OFF;
+set global innodb_buffer_pool_size = 25165824;
+select @@innodb_buffer_pool_size;
+@@innodb_buffer_pool_size
+25165824
+select count(val) from t1;
+count(val)
+262144
+drop table t1;
+drop view view0;

mysql-test/suite/innodb/r/innodb_buffer_pool_resize_with_chunks.result

@@ -0,0 +1,26 @@
+select @@innodb_buffer_pool_chunk_size;
+@@innodb_buffer_pool_chunk_size
+2097152
+create table t1 (id int not null, val int not null default '0', primary key (id)) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
+create or replace view view0 as select 1 union all select 1;
+set @`v_id` := 0;
+set @`v_val` := 0;
+replace into t1 select (@`v_id` := (@`v_id` + 4) mod 4294967296) as id, (@`v_val` := (@`v_val` + 4) mod 4294967296) as val from view0 v0, view0 v1, view0 v2, view0 v3, view0 v4, view0 v5, view0 v6, view0 v7, view0 v8, view0 v9, view0 v10, view0 v11, view0 v12, view0 v13, view0 v14, view0 v15, view0 v16, view0 v17;
+set global innodb_buffer_pool_size = 7340032;
+Warnings:
+Warning	1292	Truncated incorrect innodb_buffer_pool_size value: '7340032'
+select count(val) from t1;
+count(val)
+262144
+set global innodb_buffer_pool_size = 16777216;
+select count(val) from t1;
+count(val)
+262144
+drop table t1;
+drop view view0;
+set global innodb_buffer_pool_size = 1048576;
+Warnings:
+Warning	1292	Truncated incorrect innodb_buffer_pool_size value: '1048576'
+select @@innodb_buffer_pool_size;
+@@innodb_buffer_pool_size
+6291456

mysql-test/suite/innodb/t/innodb_buffer_pool_resize.opt

@@ -0,0 +1,2 @@
+--innodb-buffer-pool-size=8M
+--innodb-page-size=4k

mysql-test/suite/innodb/t/innodb_buffer_pool_resize.test

@@ -0,0 +1,74 @@
+#
+# WL6117 : Resize the InnoDB Buffer Pool Online
+#
+
+--source include/have_innodb.inc
+--source include/big_test.inc
+
+let $wait_timeout = 180;
+let $wait_condition =
+  SELECT SUBSTR(variable_value, 1, 34) = 'Completed resizing buffer pool at '
+  FROM information_schema.global_status
+  WHERE LOWER(variable_name) = 'innodb_buffer_pool_resize_status';
+
+--disable_query_log
+set @old_innodb_buffer_pool_size = @@innodb_buffer_pool_size;
+set @old_innodb_adaptive_hash_index = @@innodb_adaptive_hash_index;
+if (`select (version() like '%debug%') > 0`)
+{
+    set @old_innodb_disable_resize = @@innodb_disable_resize_buffer_pool_debug;
+    set global innodb_disable_resize_buffer_pool_debug = OFF;
+}
+--enable_query_log
+
+set global innodb_adaptive_hash_index=ON;
+
+select @@innodb_buffer_pool_size;
+
+# Expand buffer pool
+set global innodb_buffer_pool_size = 10485760;
+
+--source include/wait_condition.inc
+
+select @@innodb_buffer_pool_size;
+
+# fill buffer pool
+create table t1 (id int not null, val int not null default '0', primary key (id)) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
+create or replace view view0 as select 1 union all select 1;
+
+set @`v_id` := 0;
+set @`v_val` := 0;
+
+# 2^18 == 262144 records
+replace into t1 select (@`v_id` := (@`v_id` + 4) mod 4294967296) as id, (@`v_val` := (@`v_val` + 4) mod 4294967296) as val from view0 v0, view0 v1, view0 v2, view0 v3, view0 v4, view0 v5, view0 v6, view0 v7, view0 v8, view0 v9, view0 v10, view0 v11, view0 v12, view0 v13, view0 v14, view0 v15, view0 v16, view0 v17;
+
+# Shrink buffer pool
+set global innodb_buffer_pool_size = 7340032;
+--source include/wait_condition.inc
+
+select @@innodb_buffer_pool_size;
+
+select count(val) from t1;
+
+set global innodb_adaptive_hash_index=OFF;
+
+# Expand buffer pool to 24MB
+set global innodb_buffer_pool_size = 25165824;
+--source include/wait_condition.inc
+
+select @@innodb_buffer_pool_size;
+
+select count(val) from t1;
+
+drop table t1;
+drop view view0;
+
+--disable_query_log
+set global innodb_adaptive_hash_index = @old_innodb_adaptive_hash_index;
+set global innodb_buffer_pool_size = @old_innodb_buffer_pool_size;
+if (`select (version() like '%debug%') > 0`)
+{
+    set global innodb_disable_resize_buffer_pool_debug = @old_innodb_disable_resize;
+}
+--enable_query_log
+--source include/wait_condition.inc

mysql-test/suite/innodb/t/innodb_buffer_pool_resize_with_chunks.opt

@@ -0,0 +1,3 @@
+--innodb-buffer-pool-size=16M
+--innodb-buffer-pool-chunk-size=2M
+--innodb-page-size=4k

mysql-test/suite/innodb/t/innodb_buffer_pool_resize_with_chunks.test

@@ -0,0 +1,63 @@
+#
+# WL6117 : Resize the InnoDB Buffer Pool Online
+# (innodb_buffer_pool_chunk_size used case)
+#
+
+--source include/have_innodb.inc
+--source include/big_test.inc
+
+let $wait_timeout = 180;
+let $wait_condition =
+  SELECT SUBSTR(variable_value, 1, 34) = 'Completed resizing buffer pool at '
+  FROM information_schema.global_status
+  WHERE LOWER(variable_name) = 'innodb_buffer_pool_resize_status';
+
+--disable_query_log
+set @old_innodb_buffer_pool_size = @@innodb_buffer_pool_size;
+if (`select (version() like '%debug%') > 0`)
+{
+    set @old_innodb_disable_resize = @@innodb_disable_resize_buffer_pool_debug;
+    set global innodb_disable_resize_buffer_pool_debug = OFF;
+}
+--enable_query_log
+
+select @@innodb_buffer_pool_chunk_size;
+
+# fill buffer pool
+create table t1 (id int not null, val int not null default '0', primary key (id)) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
+create or replace view view0 as select 1 union all select 1;
+
+set @`v_id` := 0;
+set @`v_val` := 0;
+
+# 2^18 == 262144 records
+replace into t1 select (@`v_id` := (@`v_id` + 4) mod 4294967296) as id, (@`v_val` := (@`v_val` + 4) mod 4294967296) as val from view0 v0, view0 v1, view0 v2, view0 v3, view0 v4, view0 v5, view0 v6, view0 v7, view0 v8, view0 v9, view0 v10, view0 v11, view0 v12, view0 v13, view0 v14, view0 v15, view0 v16, view0 v17;
+
+# Shrink buffer pool to 7MB
+set global innodb_buffer_pool_size = 7340032;
+--source include/wait_condition.inc
+
+select count(val) from t1;
+
+# Expand buffer pool to 16MB
+set global innodb_buffer_pool_size = 16777216;
+--source include/wait_condition.inc
+
+select count(val) from t1;
+
+drop table t1;
+drop view view0;
+
+# Try to shrink buffer pool to smaller than chunk size
+set global innodb_buffer_pool_size = 1048576;
+--source include/wait_condition.inc
+select @@innodb_buffer_pool_size;
+
+--disable_query_log
+set global innodb_buffer_pool_size = @old_innodb_buffer_pool_size;
+if (`select (version() like '%debug%') > 0`)
+{
+    set global innodb_disable_resize_buffer_pool_debug = @old_innodb_disable_resize;
+}
+--enable_query_log
+--source include/wait_condition.inc

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

@@ -3046,7 +3046,7 @@ READ_ONLY	NO
 COMMAND_LINE_ARGUMENT	OPTIONAL
 VARIABLE_NAME	INNODB_VERSION
 SESSION_VALUE	NULL
-GLOBAL_VALUE	5.7.20
+GLOBAL_VALUE	5.7.21
 GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	NULL
 VARIABLE_SCOPE	GLOBAL

mysql-test/t/partition_innodb.test

@@ -991,3 +991,31 @@ SELECT b FROM t1 WHERE b = 0;
 SELECT b FROM t1 WHERE b = 0;
 --disconnect con1
 DROP TABLE t1;
+
+--echo #
+--echo # Bug#26390658 RENAMING A PARTITIONED TABLE DOES NOT UPDATE
+--echo #              MYSQL.INNODB_TABLE_STATS
+--echo #
+
+CREATE DATABASE test_jfg;
+
+CREATE TABLE test_jfg.test_jfg1 (id int(10) unsigned NOT NULL,PRIMARY
+KEY (id)) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=1;
+CREATE TABLE test_jfg.test_jfg2 (id int(10) unsigned NOT NULL,PRIMARY
+KEY (id)) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=1
+PARTITION BY RANGE ( id ) (PARTITION p1000 VALUES LESS THAN (1000)
+ENGINE = InnoDB,PARTITION pmax VALUES LESS THAN MAXVALUE ENGINE =
+InnoDB);
+
+--replace_result #p# #P#
+SELECT database_name, table_name FROM mysql.innodb_table_stats WHERE
+database_name = 'test_jfg';
+
+RENAME TABLE test_jfg.test_jfg1 TO test_jfg.test_jfg11;
+RENAME TABLE test_jfg.test_jfg2 TO test_jfg.test_jfg12;
+
+--replace_result #p# #P#
+SELECT database_name, table_name FROM mysql.innodb_table_stats WHERE
+database_name = 'test_jfg';
+
+DROP DATABASE test_jfg;

storage/innobase/buf/buf0buf.cc

@@ -2,7 +2,7 @@
 
 Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2008, Google Inc.
-Copyright (c) 2013, 2017, MariaDB Corporation.
+Copyright (c) 2013, 2018, MariaDB Corporation.
 
 Portions of this file contain modifications contributed and copyrighted by
 Google, Inc. Those modifications are gratefully acknowledged and are described
@@ -3141,11 +3141,26 @@ buf_pool_clear_hash_index()
 				see the comments in buf0buf.h */
 
 				if (!index) {
+# if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
+					ut_a(!block->n_pointers);
+# endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
 					continue;
 				}
 
-				ut_ad(buf_block_get_state(block)
-                                      == BUF_BLOCK_FILE_PAGE);
+				ut_d(buf_page_state state
+				     = buf_block_get_state(block));
+				/* Another thread may have set the
+				state to BUF_BLOCK_REMOVE_HASH in
+				buf_LRU_block_remove_hashed().
+
+				The state change in buf_page_realloc()
+				is not observable here, because in
+				that case we would have !block->index.
+
+				In the end, the entire adaptive hash
+				index will be removed. */
+				ut_ad(state == BUF_BLOCK_FILE_PAGE
+				      || state == BUF_BLOCK_REMOVE_HASH);
 # if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
 				block->n_pointers = 0;
 # endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */

storage/innobase/handler/ha_innodb.cc

@@ -13762,26 +13762,6 @@ innobase_rename_table(
 
 	error = row_rename_table_for_mysql(norm_from, norm_to, trx, TRUE);
 
-	if (error == DB_TABLE_NOT_FOUND) {
-		/* May be partitioned table, which consists of partitions
-		named table_name#P#partition_name[#SP#subpartition_name].
-
-		We are doing a DDL operation. */
-		++trx->will_lock;
-		trx_set_dict_operation(trx, TRX_DICT_OP_INDEX);
-		trx_start_if_not_started(trx, true);
-		error = row_rename_partitions_for_mysql(norm_from, norm_to,
-							trx);
-		if (error == DB_TABLE_NOT_FOUND) {
-			ib::error() << "Table " << ut_get_name(trx, norm_from)
-				<< " does not exist in the InnoDB internal"
-				" data dictionary though MariaDB is trying to"
-				" rename the table. Have you copied the .frm"
-				" file of the table to the MariaDB database"
-				" directory from another database? "
-				<< TROUBLESHOOTING_MSG;
-		}
-	}
 	if (error != DB_SUCCESS) {
 		if (error == DB_TABLE_NOT_FOUND
 		    && innobase_get_lower_case_table_names() == 1) {
@@ -22566,8 +22546,19 @@ innodb_buffer_pool_size_validate(
 
 	*static_cast<longlong*>(save) = requested_buf_pool_size;
 
+	if (srv_buf_pool_size == static_cast<ulint>(intbuf)) {
+		buf_pool_mutex_exit_all();
+		/* nothing to do */
+		return(0);
+	}
+
 	if (srv_buf_pool_size == requested_buf_pool_size) {
 		buf_pool_mutex_exit_all();
+		push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
+				    ER_WRONG_ARGUMENTS,
+				    "innodb_buffer_pool_size must be at least"
+				    " innodb_buffer_pool_chunk_size=%lu",
+				    srv_buf_pool_chunk_unit);
 		/* nothing to do */
 		return(0);
 	}

storage/innobase/include/row0mysql.h

@@ -494,18 +494,6 @@ row_rename_table_for_mysql(
 	bool		commit)		/*!< in: whether to commit trx */
 	MY_ATTRIBUTE((nonnull, warn_unused_result));
 
-/** Renames a partitioned table for MySQL.
-@param[in]	old_name	Old table name.
-@param[in]	new_name	New table name.
-@param[in,out]	trx		Transaction.
-@return error code or DB_SUCCESS */
-dberr_t
-row_rename_partitions_for_mysql(
-	const char*	old_name,
-	const char*	new_name,
-	trx_t*		trx)
-	MY_ATTRIBUTE((nonnull, warn_unused_result));
-
 /*********************************************************************//**
 Scans an index for either COOUNT(*) or CHECK TABLE.
 If CHECK TABLE; Checks that the index contains entries in an ascending order,