5.5.48-37.8

storage/xtradb/buf/buf0flu.c

 /*****************************************************************************
 
-Copyright (c) 1995, 2011, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -2217,7 +2217,10 @@ buf_flush_stat_update(void)
 	ib_uint64_t		lsn;
 	ulint			n_flushed;
 
-	lsn = log_get_lsn();
+	if (!log_peek_lsn(&lsn)) {
+		return;
+	}
+
 	if (buf_flush_stat_cur.redo == 0) {
 		/* First time around. Just update the current LSN
 		and return. */

storage/xtradb/handler/ha_innodb.cc

@@ -4498,7 +4498,7 @@ building based on the assumption that there is no concurrent
 index creation/drop and DMLs that requires index lookup. All table
 handle will be closed before the index creation/drop.
 @return TRUE if index translation table built successfully */
-static
+UNIV_INTERN
 ibool
 innobase_build_index_translation(
 /*=============================*/

storage/xtradb/handler/ha_innodb.h

@@ -347,3 +347,26 @@ innobase_index_name_is_reserved(
 	ulint		num_of_keys);	/*!< in: Number of indexes to
 					be created. */
 
+/*******************************************************************//**
+This function builds a translation table in INNOBASE_SHARE
+structure for fast index location with mysql array number from its
+table->key_info structure. This also provides the necessary translation
+between the key order in mysql key_info and Innodb ib_table->indexes if
+they are not fully matched with each other.
+Note we do not have any mutex protecting the translation table
+building based on the assumption that there is no concurrent
+index creation/drop and DMLs that requires index lookup. All table
+handle will be closed before the index creation/drop.
+@return TRUE if index translation table built successfully */
+UNIV_INTERN
+ibool
+innobase_build_index_translation(
+/*=============================*/
+	const TABLE*		table,	  /*!< in: table in MySQL data
+					  dictionary */
+	dict_table_t*		ib_table, /*!< in: table in Innodb data
+					  dictionary */
+	INNOBASE_SHARE*		share);	  /*!< in/out: share structure
+					  where index translation table
+					  will be constructed in. */
+

storage/xtradb/handler/handler0alter.cc

@@ -1082,6 +1082,22 @@ ha_innobase::final_add_index(
 
 	trx_free_for_mysql(trx);
 
+	/* Rebuild index translation table now for temporary tables if we are
+	restoring secondary keys, as ha_innobase::open will not be called for
+	the next access. */
+	if (add->indexed_table == prebuilt->table
+	    && dict_table_is_temporary(prebuilt->table))
+	{
+		if (!innobase_build_index_translation(add_arg->table,
+						      prebuilt->table, share))
+		{
+			/* We don't know whether index translation build failed
+			because of DD mismatch or OOM, return non-specific
+			error code. */
+			err = -1;
+		}
+	}
+
 	/* There might be work for utility threads.*/
 	srv_active_wake_master_thread();
 

storage/xtradb/include/univ.i

@@ -64,7 +64,7 @@ component, i.e. we show M.N.P as M.N */
 	(INNODB_VERSION_MAJOR << 8 | INNODB_VERSION_MINOR)
 
 #ifndef PERCONA_INNODB_VERSION
-#define PERCONA_INNODB_VERSION 37.7
+#define PERCONA_INNODB_VERSION 37.8
 #endif
 
 #define INNODB_VERSION_STR	MYSQL_SERVER_VERSION

storage/xtradb/srv/srv0srv.c

 /*****************************************************************************
 
-Copyright (c) 1995, 2013, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2008, 2009 Google Inc.
 Copyright (c) 2009, Percona Inc.
 
@@ -2880,6 +2880,8 @@ srv_lock_timeout_thread(
 /*********************************************************************//**
 A thread which prints warnings about semaphore waits which have lasted
 too long. These can be used to track bugs which cause hangs.
+Note: In order to make sync_arr_wake_threads_if_sema_free work as expected,
+we should avoid waiting any mutexes in this function!
 @return	a dummy parameter */
 UNIV_INTERN
 os_thread_ret_t
@@ -2917,9 +2919,7 @@ srv_error_monitor_thread(
 
 	/* Try to track a strange bug reported by Harald Fuchs and others,
 	where the lsn seems to decrease at times */
-
-	new_lsn = log_get_lsn();
-
+	if (log_peek_lsn(&new_lsn)) {
 		if (new_lsn < old_lsn) {
 			ut_print_timestamp(stderr);
 			fprintf(stderr,
@@ -2933,6 +2933,7 @@ srv_error_monitor_thread(
 		}
 
 		old_lsn = new_lsn;
+	}
 
 	if (difftime(time(NULL), srv_last_monitor_time) > 60) {
 		/* We referesh InnoDB Monitor values so that averages are