diff --git a/client/mysqlbinlog.cc b/client/mysqlbinlog.cc
index 851fe25333e..0e296a358e1 100644
--- a/client/mysqlbinlog.cc
+++ b/client/mysqlbinlog.cc
@@ -1548,6 +1548,7 @@ end:
       {
         my_fwrite(result_file, (const uchar *) tmp_str.str, tmp_str.length,
                   MYF(MY_NABP));
+        fflush(result_file);
         my_free(tmp_str.str);
       }
     }
diff --git a/mysql-test/include/have_xtrabackup.inc b/mysql-test/include/have_xtrabackup.inc
new file mode 100644
index 00000000000..0dd693f2c63
--- /dev/null
+++ b/mysql-test/include/have_xtrabackup.inc
@@ -0,0 +1,4 @@
+#
+# suite.pm will make sure that all tests including this file
+# will be skipped as needed
+#
diff --git a/mysql-test/main/mysqld--help.result b/mysql-test/main/mysqld--help.result
index 1c7e9cd839d..4f99ccc9372 100644
--- a/mysql-test/main/mysqld--help.result
+++ b/mysql-test/main/mysqld--help.result
@@ -1,4 +1,4 @@
-Windows bug: happens when a new line is exactly at the right offset.
+Windows bug: new line disappears when it is exactly at the right offset.
 The following options may be given as the first argument:
 --print-defaults Print the program argument list and exit.
 --no-defaults Don't read default options from any option file.
diff --git a/mysql-test/main/mysqld--help.test b/mysql-test/main/mysqld--help.test
index c2b6424599a..0225ef7447e 100644
--- a/mysql-test/main/mysqld--help.test
+++ b/mysql-test/main/mysqld--help.test
@@ -42,7 +42,7 @@ perl;
   $re2=join('|', @plugins);
   $skip=0;
   open(F, '<', "$ENV{MYSQL_TMP_DIR}/mysqld--help.txt") or die;
-  print "Windows bug: happens when a new line is exactly at the right offset.\n";
+  print "Windows bug: new line disappears when it is exactly at the right offset.\n";
   while (<F>) {
     next if 1../The following groups are read/;
     # formatting, skip line consisting entirely of dashes and blanks
diff --git a/mysql-test/suite/binlog/r/binlog_mysqlbinlog_stop_never.result b/mysql-test/suite/binlog/r/binlog_mysqlbinlog_stop_never.result
new file mode 100644
index 00000000000..e94f17b9489
--- /dev/null
+++ b/mysql-test/suite/binlog/r/binlog_mysqlbinlog_stop_never.result
@@ -0,0 +1,16 @@
+RESET MASTER;
+include/stop_dump_threads.inc
+# Step-1: Execute some dummy statements.
+CREATE TABLE t1(i int);
+INSERT INTO t1 values (1);
+# Step-2: Disable binary log temporarily and drop the table 't1'.
+set @@SESSION.SQL_LOG_BIN = 0;
+DROP TABLE t1;
+set @@SESSION.SQL_LOG_BIN = 1;
+# Step-3: Execute MYSQL_BINLOG with --stop-never and source it to mysql client.
+# Step-4: Wait till dump thread transfer is completed.
+# Step-5: Check that the data is there.
+# Step-6: Cleanup
+# kill the dump thread serving the mysqlbinlog --stop-never process
+include/stop_dump_threads.inc
+DROP TABLE t1;
diff --git a/mysql-test/suite/binlog/t/binlog_mysqlbinlog_stop_never.test b/mysql-test/suite/binlog/t/binlog_mysqlbinlog_stop_never.test
new file mode 100644
index 00000000000..d73e453ce96
--- /dev/null
+++ b/mysql-test/suite/binlog/t/binlog_mysqlbinlog_stop_never.test
@@ -0,0 +1,66 @@
+# ==== Purpose ====
+#
+# Test verifies that continuous streaming of binary log content using the
+# "mysqlbinlog --stop-never" option and sourcing it to mysql client works
+# fine.
+#
+# ==== Implementation ====
+#
+# Steps:
+#    1 - Create a table on a server on which binary log is enabled and insert
+#        a row.
+#    2 - Disable the binary log on the server and drop the table.
+#    3 - Capture the binary log output using "mysqlbinlog --stop_never" option
+#        and source it to mysql client.
+#    4 - Query the PROCESSLIST table to ensure that the dump thread which is
+#        serving "stop_never" option has read entire binlog.
+#    5 - Verify that the table is populated on the server.
+#    6 - Cleanup.
+#
+# ==== References ====
+#
+# MDEV-11154: Write_on_release_cache(log_event.cc) function will not write
+#             "COMMIT", if use "mysqlbinlog ... | mysql ..."
+
+--source include/not_windows.inc
+
+# Test is not specific to any binlog format. Hence Running only for 'row'.
+--source include/have_binlog_format_row.inc
+
+# binlog file name is needed in the test. To use master-bin.000001,
+# RESET MASTER is needed.
+RESET MASTER;
+# kill the dump threads if there any dump threads (may be from previous test)
+--source include/stop_dump_threads.inc
+
+--echo # Step-1: Execute some dummy statements.
+CREATE TABLE t1(i int);
+INSERT INTO t1 values (1);
+
+--echo # Step-2: Disable binary log temporarily and drop the table 't1'.
+set @@SESSION.SQL_LOG_BIN = 0;
+DROP TABLE t1;
+set @@SESSION.SQL_LOG_BIN = 1;
+
+--echo # Step-3: Execute MYSQL_BINLOG with --stop-never and source it to mysql client.
+--write_file $MYSQL_TMP_DIR/mysqlbinlog_stop_never.sh
+(`$MYSQL_BINLOG --read-from-remote-server --stop-never --user=root --host=127.0.0.1 --port=$MASTER_MYPORT  master-bin.000001 | $MYSQL --user=root --protocol=tcp --host=127.0.0.1 --port=$MASTER_MYPORT`) < /dev/null > /dev/null 2>&1  &
+EOF
+--exec /bin/bash $MYSQL_TMP_DIR/mysqlbinlog_stop_never.sh
+
+--echo # Step-4: Wait till dump thread transfer is completed.
+let $wait_condition= SELECT id from information_schema.processlist where processlist.command like '%Binlog%' and state like '%Master has sent%';
+--source include/wait_condition.inc
+
+--echo # Step-5: Check that the data is there.
+let $count= 1;
+let $table= test.t1;
+source include/wait_until_rows_count.inc;
+
+--echo # Step-6: Cleanup
+--echo # kill the dump thread serving the mysqlbinlog --stop-never process
+--source include/stop_dump_threads.inc
+
+DROP TABLE t1;
+--remove_file $MYSQL_TMP_DIR/mysqlbinlog_stop_never.sh
+
diff --git a/mysql-test/suite/innodb/r/check_ibd_filesize,32k.rdiff b/mysql-test/suite/innodb/r/check_ibd_filesize,32k.rdiff
new file mode 100644
index 00000000000..6cf0fdf4159
--- /dev/null
+++ b/mysql-test/suite/innodb/r/check_ibd_filesize,32k.rdiff
@@ -0,0 +1,25 @@
+--- check_ibd_filesize.result
++++ check_ibd_filesize.result,32k
+@@ -3,18 +3,12 @@
+ # SPACE IN 5.7 THAN IN 5.6
+ #
+ CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 196608
+ INSERT INTO t1 SELECT * FROM seq_1_to_25000;
+-# bytes: 9437184
++# bytes: 786432
+ DROP TABLE t1;
+ CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 196608
+ INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+-# bytes: 4194304
+-DROP TABLE t1;
+-CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB)
+-ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1;
+-# bytes: 65536
+-INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+-# bytes: 65536
++# bytes: 786432
+ DROP TABLE t1;
diff --git a/mysql-test/suite/innodb/r/check_ibd_filesize,4k.rdiff b/mysql-test/suite/innodb/r/check_ibd_filesize,4k.rdiff
new file mode 100644
index 00000000000..52cd6832755
--- /dev/null
+++ b/mysql-test/suite/innodb/r/check_ibd_filesize,4k.rdiff
@@ -0,0 +1,25 @@
+--- check_ibd_filesize.result
++++ check_ibd_filesize.result,4k
+@@ -3,18 +3,18 @@
+ # SPACE IN 5.7 THAN IN 5.6
+ #
+ CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 24576
+ INSERT INTO t1 SELECT * FROM seq_1_to_25000;
+ # bytes: 9437184
+ DROP TABLE t1;
+ CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 24576
+ INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+ # bytes: 4194304
+ DROP TABLE t1;
+ CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB)
+ ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1;
+-# bytes: 65536
++# bytes: 16384
+ INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+-# bytes: 65536
++# bytes: 25600
+ DROP TABLE t1;
diff --git a/mysql-test/suite/innodb/r/check_ibd_filesize,64k.rdiff b/mysql-test/suite/innodb/r/check_ibd_filesize,64k.rdiff
new file mode 100644
index 00000000000..23d9fbe608f
--- /dev/null
+++ b/mysql-test/suite/innodb/r/check_ibd_filesize,64k.rdiff
@@ -0,0 +1,25 @@
+--- check_ibd_filesize.result
++++ check_ibd_filesize.result,64k
+@@ -3,18 +3,12 @@
+ # SPACE IN 5.7 THAN IN 5.6
+ #
+ CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 393216
+ INSERT INTO t1 SELECT * FROM seq_1_to_25000;
+-# bytes: 9437184
++# bytes: 983040
+ DROP TABLE t1;
+ CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 393216
+ INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+-# bytes: 4194304
+-DROP TABLE t1;
+-CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB)
+-ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1;
+-# bytes: 65536
+-INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+-# bytes: 65536
++# bytes: 1572864
+ DROP TABLE t1;
diff --git a/mysql-test/suite/innodb/r/check_ibd_filesize,8k.rdiff b/mysql-test/suite/innodb/r/check_ibd_filesize,8k.rdiff
new file mode 100644
index 00000000000..17936a3def9
--- /dev/null
+++ b/mysql-test/suite/innodb/r/check_ibd_filesize,8k.rdiff
@@ -0,0 +1,25 @@
+--- check_ibd_filesize.result
++++ check_ibd_filesize.result,8k
+@@ -3,18 +3,18 @@
+ # SPACE IN 5.7 THAN IN 5.6
+ #
+ CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 49152
+ INSERT INTO t1 SELECT * FROM seq_1_to_25000;
+ # bytes: 9437184
+ DROP TABLE t1;
+ CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB) ENGINE=InnoDB;
+-# bytes: 98304
++# bytes: 49152
+ INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+ # bytes: 4194304
+ DROP TABLE t1;
+ CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB)
+ ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1;
+-# bytes: 65536
++# bytes: 32768
+ INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+-# bytes: 65536
++# bytes: 32768
+ DROP TABLE t1;
diff --git a/mysql-test/suite/innodb/r/check_ibd_filesize.result b/mysql-test/suite/innodb/r/check_ibd_filesize.result
new file mode 100644
index 00000000000..a6f5fbd9387
--- /dev/null
+++ b/mysql-test/suite/innodb/r/check_ibd_filesize.result
@@ -0,0 +1,20 @@
+#
+# Bug #21950389 SMALL TABLESPACES WITH BLOBS TAKE UP TO 80 TIMES MORE
+# SPACE IN 5.7 THAN IN 5.6
+#
+CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
+# bytes: 98304
+INSERT INTO t1 SELECT * FROM seq_1_to_25000;
+# bytes: 9437184
+DROP TABLE t1;
+CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB) ENGINE=InnoDB;
+# bytes: 98304
+INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+# bytes: 4194304
+DROP TABLE t1;
+CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB)
+ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1;
+# bytes: 65536
+INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+# bytes: 65536
+DROP TABLE t1;
diff --git a/mysql-test/suite/innodb/r/innodb-system-table-view.result b/mysql-test/suite/innodb/r/innodb-system-table-view.result
new file mode 100644
index 00000000000..09ed89b483d
--- /dev/null
+++ b/mysql-test/suite/innodb/r/innodb-system-table-view.result
@@ -0,0 +1,178 @@
+SELECT table_id INTO @table_stats_id FROM information_schema.innodb_sys_tables
+WHERE name = 'mysql/innodb_table_stats';
+SELECT table_id INTO @index_stats_id FROM information_schema.innodb_sys_tables
+WHERE name = 'mysql/innodb_index_stats';
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES
+WHERE table_id NOT IN (@table_stats_id, @index_stats_id) ORDER BY table_id;
+TABLE_ID	NAME	FLAG	N_COLS	SPACE	ROW_FORMAT	ZIP_PAGE_SIZE	SPACE_TYPE
+11	SYS_FOREIGN	0	7	0	Redundant	0	System
+12	SYS_FOREIGN_COLS	0	7	0	Redundant	0	System
+13	SYS_TABLESPACES	0	6	0	Redundant	0	System
+14	SYS_DATAFILES	0	5	0	Redundant	0	System
+15	SYS_VIRTUAL	0	6	0	Redundant	0	System
+18	mysql/transaction_registry	33	8	3	Dynamic	0	Single
+SELECT table_id,pos,mtype,prtype,len,name
+FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS
+WHERE table_id NOT IN (@table_stats_id, @index_stats_id)
+ORDER BY table_id, pos;
+table_id	pos	mtype	prtype	len	name
+11	0	1	524292	0	ID
+11	1	1	524292	0	FOR_NAME
+11	2	1	524292	0	REF_NAME
+11	3	6	0	4	N_COLS
+12	0	1	524292	0	ID
+12	1	6	0	4	POS
+12	2	1	524292	0	FOR_COL_NAME
+12	3	1	524292	0	REF_COL_NAME
+13	0	6	0	4	SPACE
+13	1	1	524292	0	NAME
+13	2	6	0	4	FLAGS
+14	0	6	0	4	SPACE
+14	1	1	524292	0	PATH
+15	0	6	0	8	TABLE_ID
+15	1	6	0	4	POS
+15	2	6	0	4	BASE_POS
+18	0	6	1800	8	transaction_id
+18	1	6	1800	8	commit_id
+18	2	3	526087	7	begin_timestamp
+18	3	3	526087	7	commit_timestamp
+18	4	6	1022	1	isolation_level
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES
+WHERE table_id NOT IN (@table_stats_id, @index_stats_id) ORDER BY index_id;
+INDEX_ID	NAME	TABLE_ID	TYPE	N_FIELDS	PAGE_NO	SPACE	MERGE_THRESHOLD
+#	ID_IND	#	3	1	#	#	50
+#	FOR_IND	#	0	1	#	#	50
+#	REF_IND	#	0	1	#	#	50
+#	ID_IND	#	3	2	#	#	50
+#	SYS_TABLESPACES_SPACE	#	3	1	#	#	50
+#	SYS_DATAFILES_SPACE	#	3	1	#	#	50
+#	BASE_IDX	#	3	3	#	#	50
+#	PRIMARY	#	3	1	#	#	50
+#	commit_id	#	2	1	#	#	50
+#	begin_timestamp	#	0	1	#	#	50
+#	commit_timestamp	#	0	2	#	#	50
+SELECT index_id,pos,name FROM INFORMATION_SCHEMA.INNODB_SYS_FIELDS
+WHERE name NOT IN ('database_name', 'table_name', 'index_name', 'stat_name')
+ORDER BY index_id, pos;
+index_id	pos	name
+11	0	ID
+12	0	FOR_NAME
+13	0	REF_NAME
+14	0	ID
+14	1	POS
+15	0	SPACE
+16	0	SPACE
+17	0	TABLE_ID
+17	1	POS
+17	2	BASE_POS
+20	0	transaction_id
+21	0	commit_id
+22	0	begin_timestamp
+23	0	commit_timestamp
+23	1	transaction_id
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN;
+ID	FOR_NAME	REF_NAME	N_COLS	TYPE
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS;
+ID	FOR_COL_NAME	REF_COL_NAME	POS
+CREATE TABLE t_redundant (a INT KEY, b TEXT) ROW_FORMAT=REDUNDANT ENGINE=innodb;
+CREATE TABLE t_compact (a INT KEY, b TEXT) ROW_FORMAT=COMPACT ENGINE=innodb;
+CREATE TABLE t_compressed (a INT KEY, b TEXT) ROW_FORMAT=COMPRESSED ENGINE=innodb KEY_BLOCK_SIZE=2;
+CREATE TABLE t_dynamic (a INT KEY, b TEXT) ROW_FORMAT=DYNAMIC ENGINE=innodb;
+=== information_schema.innodb_sys_tables  and innodb_sys_tablespaces ===
+Table Name	Tablespace	Table Flags	Columns	Row Format	Zip Size	Space Type
+test/t_compact	test/t_compact	1	5	Compact	0	Single
+test/t_compressed	test/t_compressed	37	5	Compressed	2048	Single
+test/t_dynamic	test/t_dynamic	33	5	Dynamic	0	Single
+test/t_redundant	test/t_redundant	0	5	Redundant	0	Single
+=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
+Space_Name	Space_Type	Page_Size	Zip_Size	Formats_Permitted	Path
+test/t_redundant	Single	DEFAULT	DEFAULT	Compact or Redundant	MYSQLD_DATADIR/test/t_redundant.ibd
+test/t_compact	Single	DEFAULT	DEFAULT	Compact or Redundant	MYSQLD_DATADIR/test/t_compact.ibd
+test/t_compressed	Single	DEFAULT	2048	Compressed	MYSQLD_DATADIR/test/t_compressed.ibd
+test/t_dynamic	Single	DEFAULT	DEFAULT	Dynamic	MYSQLD_DATADIR/test/t_dynamic.ibd
+DROP TABLE t_redundant, t_compact, t_compressed, t_dynamic;
+SELECT count(*) FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS;
+count(*)
+8
+CREATE TABLE parent (id INT NOT NULL,
+PRIMARY KEY (id)) ENGINE=INNODB;
+CREATE TABLE child (id INT, parent_id INT,
+INDEX par_ind (parent_id),
+CONSTRAINT constraint_test
+FOREIGN KEY (parent_id) REFERENCES parent(id)
+ON DELETE CASCADE) ENGINE=INNODB;
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN;
+ID	FOR_NAME	REF_NAME	N_COLS	TYPE
+test/constraint_test	test/child	test/parent	1	1
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS;
+ID	FOR_COL_NAME	REF_COL_NAME	POS
+test/constraint_test	parent_id	id	0
+INSERT INTO parent VALUES(1);
+SELECT name, num_rows, ref_count
+FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
+WHERE name LIKE "%parent";
+name	num_rows	ref_count
+test/parent	1	1
+SELECT NAME, FLAG, N_COLS FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES
+WHERE name NOT LIKE 'sys/%';
+NAME	FLAG	N_COLS
+SYS_DATAFILES	0	5
+SYS_FOREIGN	0	7
+SYS_FOREIGN_COLS	0	7
+SYS_TABLESPACES	0	6
+SYS_VIRTUAL	0	6
+mysql/innodb_index_stats	33	11
+mysql/innodb_table_stats	33	9
+mysql/transaction_registry	33	8
+test/child	33	5
+test/parent	33	4
+SELECT name, n_fields
+from INFORMATION_SCHEMA.INNODB_SYS_INDEXES
+WHERE table_id In (SELECT table_id from
+INFORMATION_SCHEMA.INNODB_SYS_TABLES
+WHERE name LIKE "%parent%");
+name	n_fields
+PRIMARY	1
+SELECT name, n_fields
+from INFORMATION_SCHEMA.INNODB_SYS_INDEXES
+WHERE table_id In (SELECT table_id from
+INFORMATION_SCHEMA.INNODB_SYS_TABLES
+WHERE name LIKE "%child%");
+name	n_fields
+GEN_CLUST_INDEX	0
+par_ind	1
+SELECT name, pos, mtype, len
+from INFORMATION_SCHEMA.INNODB_SYS_COLUMNS
+WHERE table_id In (SELECT table_id from
+INFORMATION_SCHEMA.INNODB_SYS_TABLES
+WHERE name LIKE "%child%");
+name	pos	mtype	len
+id	0	6	4
+parent_id	1	6	4
+DROP TABLE child;
+DROP TABLE parent;
+CREATE TABLE parent (id INT NOT NULL, newid INT NOT NULL,
+PRIMARY KEY (id, newid)) ENGINE=INNODB;
+CREATE TABLE child (id INT, parent_id INT,
+INDEX par_ind (parent_id),
+CONSTRAINT constraint_test
+FOREIGN KEY (id, parent_id) REFERENCES parent(id, newid)
+ON DELETE CASCADE) ENGINE=INNODB;
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN;
+ID	FOR_NAME	REF_NAME	N_COLS	TYPE
+test/constraint_test	test/child	test/parent	2	1
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS;
+ID	FOR_COL_NAME	REF_COL_NAME	POS
+test/constraint_test	id	id	0
+test/constraint_test	parent_id	newid	1
+INSERT INTO parent VALUES(1, 9);
+SELECT * FROM parent WHERE id IN (SELECT id FROM parent);
+id	newid
+1	9
+SELECT name, num_rows, ref_count
+FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
+WHERE name LIKE "%parent";
+name	num_rows	ref_count
+test/parent	1	2
+DROP TABLE child;
+DROP TABLE parent;
diff --git a/mysql-test/suite/innodb/r/innodb-wl5980-debug.result b/mysql-test/suite/innodb/r/innodb-wl5980-debug.result
new file mode 100644
index 00000000000..51cff4393aa
--- /dev/null
+++ b/mysql-test/suite/innodb/r/innodb-wl5980-debug.result
@@ -0,0 +1,27 @@
+call mtr.add_suppression("Cannot find space id [0-9]+ in the tablespace memory cache");
+call mtr.add_suppression("Cannot rename table 'test/t1' to 'test/t2' since the dictionary cache already contains 'test/t2'.");
+#
+# WL5980 Remote tablespace debug error injection tests.
+#
+CREATE TABLE t1 (a int KEY, b text) ENGINE=Innodb DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir' ;
+INSERT INTO t1 VALUES (1, 'tablespace');
+SELECT * FROM t1;
+a	b
+1	tablespace
+#
+# Test the second injection point in fil_rename_tablespace().
+# Make sure the table is useable after this failure.
+#
+SET @save_dbug=@@debug_dbug;
+SET debug_dbug="+d,fil_rename_tablespace_failure_2";
+RENAME TABLE t1 TO t2;
+SET debug_dbug=@save_dbug;
+INSERT INTO t1 VALUES (2, 'tablespace');
+SELECT * FROM t1;
+a	b
+1	tablespace
+2	tablespace
+#
+# Cleanup
+#
+DROP TABLE t1;
diff --git a/mysql-test/suite/innodb/r/trx_id_future.result b/mysql-test/suite/innodb/r/trx_id_future.result
new file mode 100644
index 00000000000..887d11ddcc2
--- /dev/null
+++ b/mysql-test/suite/innodb/r/trx_id_future.result
@@ -0,0 +1,13 @@
+#
+# Bug #20445525	ADD A CONSISTENCY CHECK AGAINST DB_TRX_ID BEING
+#		IN THE FUTURE
+#
+CREATE TABLE t1(a INT) row_format=redundant engine=innoDB;
+INSERT INTO t1 VALUES(1);
+NOT FOUND /\[Warning\] InnoDB: A transaction id in a record of table `test`\.`t1` is newer than the system-wide maximum/ in mysqld.1.err
+call mtr.add_suppression("\\[Warning\\] InnoDB: A transaction id in a record of table `test`\\.`t1` is newer than the system-wide maximum");
+SELECT * FROM t1;
+a
+Warnings:
+Warning	1642	InnoDB: Transaction id in a record of table `test`.`t1` is newer than system-wide maximum.
+DROP TABLE t1;
diff --git a/mysql-test/suite/innodb/t/check_ibd_filesize.test b/mysql-test/suite/innodb/t/check_ibd_filesize.test
new file mode 100644
index 00000000000..92f9061a3f6
--- /dev/null
+++ b/mysql-test/suite/innodb/t/check_ibd_filesize.test
@@ -0,0 +1,53 @@
+--source include/innodb_page_size.inc
+--source include/have_sequence.inc
+
+--echo #
+--echo # Bug #21950389 SMALL TABLESPACES WITH BLOBS TAKE UP TO 80 TIMES MORE
+--echo # SPACE IN 5.7 THAN IN 5.6
+--echo #
+
+#
+# Table 1: small rows
+#
+CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
+let MYSQLD_DATADIR=`select @@datadir`;
+perl;
+print "# bytes: ", (-s "$ENV{MYSQLD_DATADIR}/test/t1.ibd"), "\n";
+EOF
+
+INSERT INTO t1 SELECT * FROM seq_1_to_25000;
+perl;
+print "# bytes: ", (-s "$ENV{MYSQLD_DATADIR}/test/t1.ibd"), "\n";
+EOF
+DROP TABLE t1;
+
+#
+# Table 2: BLOB
+#
+CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB) ENGINE=InnoDB;
+perl;
+print "# bytes: ", (-s "$ENV{MYSQLD_DATADIR}/test/t1.ibd"), "\n";
+EOF
+INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+perl;
+print "# bytes: ", (-s "$ENV{MYSQLD_DATADIR}/test/t1.ibd"), "\n";
+EOF
+DROP TABLE t1;
+
+let $page_size=`SELECT @@innodb_page_size`;
+if ($page_size < 32768)
+{
+#
+# Table 3: compressed BLOB
+#
+CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB)
+ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1;
+perl;
+print "# bytes: ", (-s "$ENV{MYSQLD_DATADIR}/test/t1.ibd"), "\n";
+EOF
+INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
+perl;
+print "# bytes: ", (-s "$ENV{MYSQLD_DATADIR}/test/t1.ibd"), "\n";
+EOF
+DROP TABLE t1;
+}
diff --git a/mysql-test/suite/innodb/t/innodb-system-table-view.opt b/mysql-test/suite/innodb/t/innodb-system-table-view.opt
new file mode 100644
index 00000000000..b5a61b9ec4b
--- /dev/null
+++ b/mysql-test/suite/innodb/t/innodb-system-table-view.opt
@@ -0,0 +1,10 @@
+--innodb
+--innodb-sys-tablespaces
+--innodb-sys-datafiles
+--innodb-sys-tablestats
+--innodb-sys-tables
+--innodb-sys-columns
+--innodb-sys-indexes
+--innodb-sys-fields
+--innodb-sys-foreign
+--innodb-sys-foreign-cols
diff --git a/mysql-test/suite/innodb/t/innodb-system-table-view.test b/mysql-test/suite/innodb/t/innodb-system-table-view.test
new file mode 100644
index 00000000000..087c0a22eca
--- /dev/null
+++ b/mysql-test/suite/innodb/t/innodb-system-table-view.test
@@ -0,0 +1,136 @@
+# This is the test for Information Schema System Table View
+# that displays the InnoDB system table content through
+# information schema tables.
+
+--source include/innodb_page_size_small.inc
+
+LET $MYSQLD_DATADIR = `select @@datadir`;
+LET $INNODB_PAGE_SIZE = `select @@innodb_page_size`;
+
+# The IDs of mysql.innodb_table_stats and mysql.innodb_index_stats may
+# vary depending on whether the tables have been rebuilt
+# by previously run tests.
+SELECT table_id INTO @table_stats_id FROM information_schema.innodb_sys_tables
+WHERE name = 'mysql/innodb_table_stats';
+SELECT table_id INTO @index_stats_id FROM information_schema.innodb_sys_tables
+WHERE name = 'mysql/innodb_index_stats';
+
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES
+WHERE table_id NOT IN (@table_stats_id, @index_stats_id) ORDER BY table_id;
+
+SELECT table_id,pos,mtype,prtype,len,name
+FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS
+WHERE table_id NOT IN (@table_stats_id, @index_stats_id)
+ORDER BY table_id, pos;
+
+--replace_column 1 # 3 # 6 # 7 #
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES
+WHERE table_id NOT IN (@table_stats_id, @index_stats_id) ORDER BY index_id;
+
+SELECT index_id,pos,name FROM INFORMATION_SCHEMA.INNODB_SYS_FIELDS
+WHERE name NOT IN ('database_name', 'table_name', 'index_name', 'stat_name')
+ORDER BY index_id, pos;
+
+--sorted_result
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN;
+--sorted_result
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS;
+
+CREATE TABLE t_redundant (a INT KEY, b TEXT) ROW_FORMAT=REDUNDANT ENGINE=innodb;
+CREATE TABLE t_compact (a INT KEY, b TEXT) ROW_FORMAT=COMPACT ENGINE=innodb;
+CREATE TABLE t_compressed (a INT KEY, b TEXT) ROW_FORMAT=COMPRESSED ENGINE=innodb KEY_BLOCK_SIZE=2;
+CREATE TABLE t_dynamic (a INT KEY, b TEXT) ROW_FORMAT=DYNAMIC ENGINE=innodb;
+
+--source suite/innodb/include/show_i_s_tables.inc
+--source suite/innodb/include/show_i_s_tablespaces.inc
+
+DROP TABLE t_redundant, t_compact, t_compressed, t_dynamic;
+
+SELECT count(*) FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS;
+
+# Create a foreign key constraint, and verify the information
+# in INFORMATION_SCHEMA.INNODB_SYS_FOREIGN and
+# INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS
+CREATE TABLE parent (id INT NOT NULL,
+                     PRIMARY KEY (id)) ENGINE=INNODB;
+
+CREATE TABLE child (id INT, parent_id INT,
+                    INDEX par_ind (parent_id),
+		    CONSTRAINT constraint_test
+                    FOREIGN KEY (parent_id) REFERENCES parent(id)
+                      ON DELETE CASCADE) ENGINE=INNODB;
+
+--sorted_result
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN;
+
+--sorted_result
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS;
+
+# Insert a row in the table "parent", and see whether that reflected in
+# INNODB_SYS_TABLESTATS
+INSERT INTO parent VALUES(1);
+
+--sorted_result
+SELECT name, num_rows, ref_count
+FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
+WHERE name LIKE "%parent";
+
+--sorted_result
+SELECT NAME, FLAG, N_COLS FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES
+ WHERE name NOT LIKE 'sys/%';
+
+--sorted_result
+SELECT name, n_fields
+from INFORMATION_SCHEMA.INNODB_SYS_INDEXES
+WHERE table_id In (SELECT table_id from
+	INFORMATION_SCHEMA.INNODB_SYS_TABLES
+	WHERE name LIKE "%parent%");
+
+--sorted_result
+SELECT name, n_fields
+from INFORMATION_SCHEMA.INNODB_SYS_INDEXES
+WHERE table_id In (SELECT table_id from
+	INFORMATION_SCHEMA.INNODB_SYS_TABLES
+	WHERE name LIKE "%child%");
+
+--sorted_result
+SELECT name, pos, mtype, len
+from INFORMATION_SCHEMA.INNODB_SYS_COLUMNS
+WHERE table_id In (SELECT table_id from
+	INFORMATION_SCHEMA.INNODB_SYS_TABLES
+	WHERE name LIKE "%child%");
+
+DROP TABLE child;
+
+DROP TABLE parent;
+
+# Create table with 2 columns in the foreign key constraint
+CREATE TABLE parent (id INT NOT NULL, newid INT NOT NULL,
+                     PRIMARY KEY (id, newid)) ENGINE=INNODB;
+
+CREATE TABLE child (id INT, parent_id INT,
+                    INDEX par_ind (parent_id),
+		    CONSTRAINT constraint_test
+                    FOREIGN KEY (id, parent_id) REFERENCES parent(id, newid)
+                      ON DELETE CASCADE) ENGINE=INNODB;
+
+--sorted_result
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN;
+
+--sorted_result
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS;
+
+INSERT INTO parent VALUES(1, 9);
+
+# Nested query will open the table handle twice
+--sorted_result
+SELECT * FROM parent WHERE id IN (SELECT id FROM parent);
+
+--sorted_result
+SELECT name, num_rows, ref_count
+FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
+WHERE name LIKE "%parent";
+
+DROP TABLE child;
+
+DROP TABLE parent;
diff --git a/mysql-test/suite/innodb/t/innodb-wl5980-debug.test b/mysql-test/suite/innodb/t/innodb-wl5980-debug.test
new file mode 100644
index 00000000000..2c5e2b48870
--- /dev/null
+++ b/mysql-test/suite/innodb/t/innodb-wl5980-debug.test
@@ -0,0 +1,51 @@
+#
+# This testcase is to check the various debug injection points
+# to make sure error conditions react corectly and acheive
+# better code coverage.
+#
+
+# Not supported in embedded
+--source include/not_embedded.inc
+--source include/have_debug.inc
+--source include/have_innodb.inc
+
+# These messages are expected in the log
+call mtr.add_suppression("Cannot find space id [0-9]+ in the tablespace memory cache");
+call mtr.add_suppression("Cannot rename table 'test/t1' to 'test/t2' since the dictionary cache already contains 'test/t2'.");
+
+# Set up some variables
+LET $MYSQL_DATA_DIR = `select @@datadir`;
+LET $data_directory_clause = DATA DIRECTORY='$MYSQL_TMP_DIR/alt_dir';
+--enable_query_log
+
+--echo #
+--echo # WL5980 Remote tablespace debug error injection tests.
+--echo #
+
+--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
+eval CREATE TABLE t1 (a int KEY, b text) ENGINE=Innodb $data_directory_clause ;
+INSERT INTO t1 VALUES (1, 'tablespace');
+SELECT * FROM t1;
+
+--echo #
+--echo # Test the second injection point in fil_rename_tablespace().
+--echo # Make sure the table is useable after this failure.
+--echo #
+SET @save_dbug=@@debug_dbug;
+SET debug_dbug="+d,fil_rename_tablespace_failure_2";
+--disable_result_log
+--error ER_ERROR_ON_RENAME
+RENAME TABLE t1 TO t2;
+--enable_result_log
+SET debug_dbug=@save_dbug;
+INSERT INTO t1 VALUES (2, 'tablespace');
+SELECT * FROM t1;
+
+--echo #
+--echo # Cleanup
+--echo #
+
+DROP TABLE t1;
+
+--rmdir $MYSQL_TMP_DIR/alt_dir/test
+--rmdir $MYSQL_TMP_DIR/alt_dir
diff --git a/mysql-test/suite/innodb/t/trx_id_future.test b/mysql-test/suite/innodb/t/trx_id_future.test
new file mode 100644
index 00000000000..deba753caca
--- /dev/null
+++ b/mysql-test/suite/innodb/t/trx_id_future.test
@@ -0,0 +1,58 @@
+--echo #
+--echo # Bug #20445525	ADD A CONSISTENCY CHECK AGAINST DB_TRX_ID BEING
+--echo #		IN THE FUTURE
+--echo #
+
+--source include/not_debug.inc
+--source include/have_innodb.inc
+--source include/not_embedded.inc
+
+let PAGE_SIZE=`select @@innodb_page_size`;
+
+CREATE TABLE t1(a INT) row_format=redundant engine=innoDB;
+INSERT INTO t1 VALUES(1);
+
+let MYSQLD_DATADIR=`select @@datadir`;
+
+--source include/shutdown_mysqld.inc
+
+perl;
+do "$ENV{MTR_SUITE_DIR}/include/crc32.pl";
+my $file = "$ENV{MYSQLD_DATADIR}/test/t1.ibd";
+open(FILE, "+<", $file) || die "Unable to open $file";
+binmode FILE;
+
+#Seek the the infimum record and get the offset to next record
+#Infimum record exist at offset 101 for redundant format
+#And offset to the next record is present 2 bytes prior to
+#infimum record
+
+my $ps= $ENV{PAGE_SIZE};
+my $page;
+sysseek(FILE, 3*$ps, 0) || die "Unable to seek $file\n";
+die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
+#In this case the first record should be at offset 135
+die unless unpack("n", substr($page, 99, 2)) == 135;
+
+substr($page,135+6,6) = "\xff" x 6;
+
+my $polynomial = 0x82f63b78; # CRC-32C
+my $ck= pack("N",mycrc32(substr($page, 4, 22), 0, $polynomial) ^
+		 mycrc32(substr($page, 38, $ps - 38 - 8), 0, $polynomial));
+substr($page,0,4)=$ck;
+substr($page,$ps-8,4)=$ck;
+sysseek(FILE, 3*$ps, 0) || die "Unable to rewind $file\n";
+syswrite(FILE, $page, $ps)==$ps || die "Unable to write $file\n";
+close(FILE) || die "Unable to close $file";
+EOF
+
+--source include/start_mysqld.inc
+
+let SEARCH_FILE= $MYSQLTEST_VARDIR/log/mysqld.1.err;
+let SEARCH_PATTERN= \[Warning\] InnoDB: A transaction id in a record of table `test`\.`t1` is newer than the system-wide maximum;
+--source include/search_pattern_in_file.inc
+
+call mtr.add_suppression("\\[Warning\\] InnoDB: A transaction id in a record of table `test`\\.`t1` is newer than the system-wide maximum");
+
+SELECT * FROM t1;
+DROP TABLE t1;
diff --git a/mysql-test/suite/rpl/r/mdev_17588.result b/mysql-test/suite/rpl/r/mdev_17588.result
new file mode 100644
index 00000000000..f6b4728bd88
--- /dev/null
+++ b/mysql-test/suite/rpl/r/mdev_17588.result
@@ -0,0 +1,36 @@
+include/master-slave.inc
+[connection master]
+connection master;
+create table t1 (a int) engine=innodb;
+create table t2 (a int);
+create table t3 (a int) engine=innodb;
+include/save_master_gtid.inc
+connection slave;
+include/wait_for_slave_sql_error.inc [errno=1286]
+Last_Error = 'Error 'Unknown storage engine 'innodb'' on query. Default database: 'test'. Query: 'create table t1 (a int) engine=innodb''
+STOP SLAVE IO_THREAD;
+include/wait_for_slave_to_stop.inc
+SET GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
+include/start_slave.inc
+include/sync_with_master_gtid.inc
+show tables;
+Tables_in_test
+t2
+show create table t2;
+Table	Create Table
+t2	CREATE TABLE `t2` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+show create table t1;
+ERROR 42S02: Table 'test.t1' doesn't exist
+show create table t3;
+ERROR 42S02: Table 'test.t3' doesn't exist
+connection master;
+drop table if exists t1;
+drop table if exists t2;
+drop table if exists t3;
+include/save_master_gtid.inc
+connection slave;
+include/sync_with_master_gtid.inc
+CALL mtr.add_suppression('Slave: Unknown storage engine .* Error_code: 1286');
+include/rpl_end.inc
diff --git a/mysql-test/suite/rpl/t/mdev_17588-slave.opt b/mysql-test/suite/rpl/t/mdev_17588-slave.opt
new file mode 100644
index 00000000000..d73dbeca51a
--- /dev/null
+++ b/mysql-test/suite/rpl/t/mdev_17588-slave.opt
@@ -0,0 +1 @@
+--loose-disable-innodb --replicate-ignore-table=test.t3
diff --git a/mysql-test/suite/rpl/t/mdev_17588.test b/mysql-test/suite/rpl/t/mdev_17588.test
new file mode 100644
index 00000000000..e9a340cbd25
--- /dev/null
+++ b/mysql-test/suite/rpl/t/mdev_17588.test
@@ -0,0 +1,39 @@
+--source include/master-slave.inc
+--source include/have_innodb.inc
+
+--connection master
+create table t1 (a int) engine=innodb;
+create table t2 (a int);
+create table t3 (a int) engine=innodb;
+--source include/save_master_gtid.inc
+
+--connection slave
+# Using ER_UNKNOWN_STORAGE_ENGINE wont work
+let $slave_sql_errno= 1286;
+--source include/wait_for_slave_sql_error.inc
+--let $status_items= Last_Error
+--source include/show_slave_status.inc
+STOP SLAVE IO_THREAD;
+source include/wait_for_slave_to_stop.inc;
+SET GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
+--source include/start_slave.inc
+--source include/sync_with_master_gtid.inc
+show tables;
+show create table t2;
+--error ER_NO_SUCH_TABLE
+show create table t1;
+--error ER_NO_SUCH_TABLE
+show create table t3;
+
+--connection master
+drop table if exists t1;
+drop table if exists t2;
+drop table if exists t3;
+--source include/save_master_gtid.inc
+
+--connection slave
+--source include/sync_with_master_gtid.inc
+
+
+CALL mtr.add_suppression('Slave: Unknown storage engine .* Error_code: 1286');
+--source include/rpl_end.inc
diff --git a/sql/log_event.cc b/sql/log_event.cc
index a4acb9e5701..ce4d57329c7 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -298,7 +298,7 @@ class Write_on_release_cache
 public:
   enum flag
   {
-    FLUSH_F
+    FLUSH_F= 1
   };
 
   typedef unsigned short flag_set;
diff --git a/sql/table.cc b/sql/table.cc
index b58bcf45405..4084b9c06d1 100644
--- a/sql/table.cc
+++ b/sql/table.cc
@@ -567,14 +567,14 @@ inline bool is_system_table_name(const char *name, size_t length)
   
   SYNOPSIS
   open_table_def()
-  thd		Thread handler
+  thd		  Thread handler
   share		Fill this with table definition
-  db_flags	Bit mask of the following flags: OPEN_VIEW
+  flags	  Bit mask of the following flags: OPEN_VIEW
 
   NOTES
     This function is called when the table definition is not cached in
     table definition cache
-    The data is returned in 'share', which is alloced by
+    The data is returned in 'share', which is allocated by
     alloc_table_share().. The code assumes that share is initialized.
 */
 
diff --git a/storage/connect/CMakeLists.txt b/storage/connect/CMakeLists.txt
index 4d0f57d0ef6..19fb8a12288 100644
--- a/storage/connect/CMakeLists.txt
+++ b/storage/connect/CMakeLists.txt
@@ -118,7 +118,6 @@ IF(CONNECT_WITH_LIBXML2)
   FIND_PACKAGE(LibXml2)
   IF (LIBXML2_FOUND)
     INCLUDE_DIRECTORIES(${LIBXML2_INCLUDE_DIR})
-    SET(ZLIB_LIBRARY "z") # see ZLIB_INCLUDE_DIR below
     SET(XML_LIBRARY  ${LIBXML2_LIBRARIES})
     SET(CONNECT_SOURCES ${CONNECT_SOURCES} libdoc.cpp libdoc.h)
     add_definitions(-DLIBXML2_SUPPORT)
@@ -337,14 +336,6 @@ IF(NOT TARGET connect)
   RETURN()
 ENDIF()
 
-# Don't link with bundled zlib and systel libxml2 at the same time.
-# System libxml2 uses system zlib, might conflict with the bundled one.
-IF (XML_LIBRARY AND BUILD_BUNDLED_ZLIB)
-  GET_PROPERTY(INCS TARGET connect PROPERTY INCLUDE_DIRECTORIES)
-  LIST(REMOVE_ITEM INCS ${ZLIB_INCLUDE_DIR})
-  SET_PROPERTY(TARGET connect PROPERTY INCLUDE_DIRECTORIES ${INCS})
-ENDIF()
-
 IF(WIN32)
   IF (libmongoc-1.0_FOUND)
 	  SET_TARGET_PROPERTIES(connect PROPERTIES LINK_FLAGS
diff --git a/storage/innobase/buf/buf0buf.cc b/storage/innobase/buf/buf0buf.cc
index 3a2ebed4878..293f32bcab0 100644
--- a/storage/innobase/buf/buf0buf.cc
+++ b/storage/innobase/buf/buf0buf.cc
@@ -1109,26 +1109,26 @@ buf_page_is_corrupted(
 	the first page of each file of the system tablespace.
 	Ignore it for the system tablespace. */
 	if (!checksum_field1 && !checksum_field2) {
-		ulint i = 0;
-		do {
-			if (read_buf[i]) {
-				return true;
-			}
-		} while (++i < FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION);
-
+		/* Checksum fields can have valid value as zero.
+		If the page is not empty then do the checksum
+		calculation for the page. */
+		bool all_zeroes = true;
+		for (size_t i = 0; i < srv_page_size; i++) {
 #ifndef UNIV_INNOCHECKSUM
-		if (!space || !space->id) {
-			/* Skip FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION
-			in the system tablespace. */
-			i += 8;
-		}
-#endif
-		do {
-			if (read_buf[i]) {
-				return true;
+			if (i == FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION
+			    && (!space || !space->id)) {
+				i += 8;
 			}
-		} while (++i < srv_page_size);
-		return false;
+#endif
+			if (read_buf[i]) {
+				all_zeroes = false;
+				break;
+			}
+		}
+
+		if (all_zeroes) {
+			return false;
+		}
 	}
 
 	switch (curr_algo) {
diff --git a/storage/innobase/fil/fil0fil.cc b/storage/innobase/fil/fil0fil.cc
index 16ca2cb17cc..d796d2a7f2a 100644
--- a/storage/innobase/fil/fil0fil.cc
+++ b/storage/innobase/fil/fil0fil.cc
@@ -2923,9 +2923,15 @@ fil_rename_tablespace(
 	space->n_pending_ops--;
 	ut_ad(space->name == old_space_name);
 	ut_ad(node->name == old_file_name);
-
-	bool	success = os_file_rename(
-		innodb_data_file_key, old_file_name, new_file_name);
+	bool success;
+	DBUG_EXECUTE_IF("fil_rename_tablespace_failure_2",
+			goto skip_second_rename; );
+	success = os_file_rename(innodb_data_file_key,
+				 old_file_name,
+				 new_file_name);
+	DBUG_EXECUTE_IF("fil_rename_tablespace_failure_2",
+skip_second_rename:
+                       success = false; );
 
 	ut_ad(node->name == old_file_name);
 
diff --git a/storage/innobase/row/row0merge.cc b/storage/innobase/row/row0merge.cc
index 73d4a836d98..3e7fe26db6e 100644
--- a/storage/innobase/row/row0merge.cc
+++ b/storage/innobase/row/row0merge.cc
@@ -2559,6 +2559,7 @@ write_buffers:
 							BTR_SEARCH_LEAF, &pcur,
 							&mtr);
 						buf = row_merge_buf_empty(buf);
+						merge_buf[i] = buf;
 						/* Restart the outer loop on the
 						record. We did not insert it
 						into any index yet. */
@@ -2684,6 +2685,7 @@ write_buffers:
 				}
 			}
 			merge_buf[i] = row_merge_buf_empty(buf);
+			buf = merge_buf[i];
 
 			if (UNIV_LIKELY(row != NULL)) {
 				/* Try writing the record again, now
diff --git a/storage/maria/ha_maria.cc b/storage/maria/ha_maria.cc
index 7e71b361d6e..025477366a5 100644
--- a/storage/maria/ha_maria.cc
+++ b/storage/maria/ha_maria.cc
@@ -355,10 +355,12 @@ static PSI_file_info all_aria_files[]=
   { &key_file_control, "control", PSI_FLAG_GLOBAL}
 };
 
+# ifdef HAVE_PSI_STAGE_INTERFACE
 static PSI_stage_info *all_aria_stages[]=
 {
   & stage_waiting_for_a_resource
 };
+# endif /* HAVE_PSI_STAGE_INTERFACE */
 
 static void init_aria_psi_keys(void)
 {
@@ -379,9 +381,10 @@ static void init_aria_psi_keys(void)
 
   count= array_elements(all_aria_files);
   mysql_file_register(category, all_aria_files, count);
-
+# ifdef HAVE_PSI_STAGE_INTERFACE
   count= array_elements(all_aria_stages);
   mysql_stage_register(category, all_aria_stages, count);
+# endif /* HAVE_PSI_STAGE_INTERFACE */
 }
 #else
 #define init_aria_psi_keys() /* no-op */
diff --git a/storage/rocksdb/mysql-test/rocksdb/r/unique_check.result b/storage/rocksdb/mysql-test/rocksdb/r/unique_check.result
index 8de94e0297e..db9b119043a 100644
--- a/storage/rocksdb/mysql-test/rocksdb/r/unique_check.result
+++ b/storage/rocksdb/mysql-test/rocksdb/r/unique_check.result
@@ -66,13 +66,14 @@ id	id2	value
 2	1	2
 truncate table t2;
 connection con1;
-set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked1 WAIT_FOR go1';
+set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked1 WAIT_FOR go';
 insert into t1 values (1,1);
-connection con2;
-set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked2 WAIT_FOR go2';
-insert into t2 values (1,1,1);
 connection default;
 set debug_sync='now WAIT_FOR parked1';
+connection con2;
+set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked2 WAIT_FOR go';
+insert into t2 values (1,1,1);
+connection default;
 set debug_sync='now WAIT_FOR parked2';
 connection con3;
 set session rocksdb_lock_wait_timeout=1;
@@ -81,8 +82,7 @@ ERROR HY000: Lock wait timeout exceeded; try restarting transaction
 insert into t2 values (2,1,2);
 ERROR HY000: Lock wait timeout exceeded; try restarting transaction
 connection default;
-set debug_sync='now SIGNAL go1';
-set debug_sync='now SIGNAL go2';
+set debug_sync='now SIGNAL go';
 connection con1;
 connection con2;
 connection default;
diff --git a/storage/rocksdb/mysql-test/rocksdb/t/disabled.def b/storage/rocksdb/mysql-test/rocksdb/t/disabled.def
index 04e73a53d43..8b863cff570 100644
--- a/storage/rocksdb/mysql-test/rocksdb/t/disabled.def
+++ b/storage/rocksdb/mysql-test/rocksdb/t/disabled.def
@@ -38,7 +38,7 @@ rocksdb_read_free_rpl_stress :  Read-Free replication is not supported
 blind_delete_rr : Read-Free replication is not supported
 blind_delete_rc : Read-Free replication is not supported
 
-shutdown: requires support for SHUTDOWN statement which calls exit().
+force_shutdown: requires support for SHUTDOWN statement which calls exit().
 
 ##
 ##  Tests that do not fit MariaDB's test environment. Upstream seems to test
@@ -70,6 +70,8 @@ gap_lock_raise_error: MDEV-11735: MyRocks: Gap Lock detector support
 show_engine : MariaRocks: MariaDB doesnt support SHOW ENGINE rocksdb TRANSACTION STATUS
 issue243_transactionStatus: MariaDB doesnt support SHOW ENGINE rocksdb TRANSACTION STATUS
 rpl_row_not_found : MariaDB doesnt support slave_exec_mode='SEMI_STRICT'
+rpl_row_not_found_rc : MariaDB doesnt support slave_exec_mode='SEMI_STRICT'
+
 ddl_high_priority: Needs fractional @@lock_wait_timeout
 deadlock_tracking : Needs SHOW ENGINE ROCKSDB TRANSACTION STATUS
 bytes_written: Needs I_S.TABLE_STATISTICS.IO_WRITE_BYTES
diff --git a/storage/rocksdb/mysql-test/rocksdb/t/tbl_opt_data_index_dir.test b/storage/rocksdb/mysql-test/rocksdb/t/tbl_opt_data_index_dir.test
index 9f70dbe40ec..6fcfd491af1 100644
--- a/storage/rocksdb/mysql-test/rocksdb/t/tbl_opt_data_index_dir.test
+++ b/storage/rocksdb/mysql-test/rocksdb/t/tbl_opt_data_index_dir.test
@@ -20,11 +20,13 @@ DROP TABLE IF EXISTS t1;
 --replace_result error: error
 --error ER_CANT_CREATE_TABLE
 CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(8)) ENGINE=rocksdb DATA DIRECTORY = '/foo/bar/data';
+--replace_result error: error
 show warnings;
 
 --replace_result error: error
 --error ER_CANT_CREATE_TABLE
 CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(8)) ENGINE=rocksdb INDEX DIRECTORY = '/foo/bar/index';
+--replace_result error: error
 show warnings;
 
 #
@@ -41,6 +43,7 @@ CREATE TABLE t1 (id INT NOT NULL PRIMARY KEY) ENGINE=rocksdb PARTITION BY RANGE
         DATA DIRECTORY =  '/foo/bar/data/',
     PARTITION P2 VALUES LESS THAN (MAXVALUE)
 );
+--replace_result error: error
 show warnings;
 
 --replace_result error: error
@@ -53,4 +56,5 @@ CREATE TABLE t1 (id int not null primary key) ENGINE=rocksdb PARTITION BY RANGE
        INDEX DIRECTORY =  '/foo/bar/data/',
    PARTITION P2 VALUES LESS THAN (MAXVALUE)
 );
+--replace_result error: error
 show warnings;
diff --git a/storage/rocksdb/mysql-test/rocksdb/t/unique_check.test b/storage/rocksdb/mysql-test/rocksdb/t/unique_check.test
index 26f34f86f73..e2520388ea7 100644
--- a/storage/rocksdb/mysql-test/rocksdb/t/unique_check.test
+++ b/storage/rocksdb/mysql-test/rocksdb/t/unique_check.test
@@ -102,15 +102,17 @@ truncate table t2;
 
 # 4) simulating T1 GetForUpdate() -> T2 GetForUpdate(). T2 should fail with lock wait timeout. 
 connection con1;
-set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked1 WAIT_FOR go1';
+set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked1 WAIT_FOR go';
 send insert into t1 values (1,1);
 
-connection con2;
-set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked2 WAIT_FOR go2';
-send insert into t2 values (1,1,1);
-
 connection default;
 set debug_sync='now WAIT_FOR parked1';
+
+connection con2;
+set debug_sync='rocksdb.update_write_row_after_unique_check SIGNAL parked2 WAIT_FOR go';
+send insert into t2 values (1,1,1);
+
+connection default;
 set debug_sync='now WAIT_FOR parked2';
 
 connection con3;
@@ -121,8 +123,7 @@ insert into t1 values (1,2);
 insert into t2 values (2,1,2);
 
 connection default;
-set debug_sync='now SIGNAL go1';
-set debug_sync='now SIGNAL go2';
+set debug_sync='now SIGNAL go';
 
 connection con1;
 reap;
diff --git a/storage/rocksdb/mysql-test/rocksdb_rpl/t/disabled.def b/storage/rocksdb/mysql-test/rocksdb_rpl/t/disabled.def
index b0fc68b84b2..2147e3e086d 100644
--- a/storage/rocksdb/mysql-test/rocksdb_rpl/t/disabled.def
+++ b/storage/rocksdb/mysql-test/rocksdb_rpl/t/disabled.def
@@ -11,6 +11,8 @@ rpl_gtid_rocksdb_sys_header : MariaDB doesn't support printing "RocksDB: Last My
 singledelete_idempotent_recovery: MariaDB doesn't support --slave-use-idempotent-for-recovery
 rpl_mts_dependency_unique_key_conflicts: MariaDB doesn't support --slave-use-idempotent-for-recovery
 rpl_missing_columns_sk_update : Uses log_column_names=ON feature which is only present in FB/MySQL
+optimize_myrocks_replace_into: requires @@enable_blind_replace support.
+rpl_gtid_crash_safe_optimized: requires slave_gtid_info=optimized
 
 ##
 ##  Tests that do not fit MariaDB's test environment (Functional tests only,
diff --git a/support-files/rpm/server-postin.sh b/support-files/rpm/server-postin.sh
index 0a5bac73f0b..deb27c98ac1 100644
--- a/support-files/rpm/server-postin.sh
+++ b/support-files/rpm/server-postin.sh
@@ -50,7 +50,7 @@ if [ $1 = 1 ] ; then
 
   # Change permissions so that the user that will run the MySQL daemon
   # owns all database files.
-  chown -R %{mysqld_user}:%{mysqld_group} $datadir
+  chown -R -f %{mysqld_user}:%{mysqld_group} $datadir
 
   if [ ! -e $datadir/mysql ]; then
     # Create data directory
diff --git a/zlib/CMakeLists.txt b/zlib/CMakeLists.txt
index 5d58f9a42b6..f654f98bfc4 100644
--- a/zlib/CMakeLists.txt
+++ b/zlib/CMakeLists.txt
@@ -124,6 +124,8 @@ string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
 
 ADD_CONVENIENCE_LIBRARY(zlib STATIC
   ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+RESTRICT_SYMBOL_EXPORTS(zlib)
+
 
 if(NOT CYGWIN)
     # This property causes shared libraries on Linux to have the full version
@@ -142,7 +144,4 @@ if(CMAKE_SYSTEM_NAME MATCHES "SunOS")
 elseif(UNIX)
     # On unix-like platforms the library is almost always called libz
    set_target_properties(zlib PROPERTIES OUTPUT_NAME z)
-   if(NOT APPLE)
-     set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
-   endif()
 endif()