Merge r328:340 from branches/5.0:

r340: Fix http://bugs.mysql.com/bug.php?id=18283 in ha_innodb.cc and
http://bugs.mysql.com/bug.php?id=18238 in InnoDB

r339: Remove disk space leak on update of BLOB columns (Bug #18252).

btr_cur_pessimistic_update(): Invoke rec_get_offsets() after
rec_set_field_extern_bits().

btr_store_big_rec_extern_fields(): Note that offsets will no longer be
valid after calling this function.

r338: Fix bug 18238 : check in pessimistic insert and update if the buffer
pool is exhausted by locks

btr/btr0cur.c

@@ -1915,13 +1915,13 @@ btr_cur_pessimistic_update(
 	ut_a(rec || optim_err != DB_UNDERFLOW);
 
 	if (rec) {
-		offsets = rec_get_offsets(rec, index, offsets,
-					ULINT_UNDEFINED, &heap);
-
 		lock_rec_restore_from_page_infimum(rec, page);
 		rec_set_field_extern_bits(rec, index,
 						ext_vect, n_ext_vect, mtr);
 
+		offsets = rec_get_offsets(rec, index, offsets,
+					ULINT_UNDEFINED, &heap);
+
 		if (!rec_get_deleted_flag(rec, rec_offs_comp(offsets))) {
 			/* The new inserted record owns its possible externally
 			stored fields */
@@ -3328,7 +3328,10 @@ btr_store_big_rec_extern_fields(
 	dict_index_t*	index,		/* in: index of rec; the index tree
 					MUST be X-latched */
 	rec_t*		rec,		/* in: record */
-	const ulint*	offsets,	/* in: rec_get_offsets(rec, index) */
+	const ulint*	offsets,	/* in: rec_get_offsets(rec, index);
+					the "external storage" flags in offsets
+					will not correspond to rec when
+					this function returns */
 	big_rec_t*	big_rec_vec,	/* in: vector containing fields
 					to be stored externally */
 	mtr_t*		local_mtr __attribute__((unused))) /* in: mtr

buf/buf0lru.c

@@ -294,14 +294,14 @@ buf_LRU_try_free_flushed_blocks(void)
 }
 
 /**********************************************************************
-Returns TRUE if less than 15 % of the buffer pool is available. This can be
+Returns TRUE if less than 25 % of the buffer pool is available. This can be
 used in heuristics to prevent huge transactions eating up the whole buffer
 pool for their locks. */
 
 ibool
 buf_LRU_buf_pool_running_out(void)
 /*==============================*/
-				/* out: TRUE if less than 15 % of buffer pool
+				/* out: TRUE if less than 25 % of buffer pool
 				left */
 {
 	ibool	ret	= FALSE;
@@ -309,7 +309,7 @@ buf_LRU_buf_pool_running_out(void)
 	mutex_enter(&(buf_pool->mutex));
 
 	if (!recv_recovery_on && UT_LIST_GET_LEN(buf_pool->free)
-	   + UT_LIST_GET_LEN(buf_pool->LRU) < buf_pool->max_size / 7) {
+	   + UT_LIST_GET_LEN(buf_pool->LRU) < buf_pool->max_size / 4) {
 
 		ret = TRUE;
 	}
@@ -340,11 +340,11 @@ buf_LRU_get_free_block(void)
 	mutex_enter(&(buf_pool->mutex));
 
 	if (!recv_recovery_on && UT_LIST_GET_LEN(buf_pool->free)
-	   + UT_LIST_GET_LEN(buf_pool->LRU) < buf_pool->max_size / 10) {
+	   + UT_LIST_GET_LEN(buf_pool->LRU) < buf_pool->max_size / 20) {
 		ut_print_timestamp(stderr);
 
 		fprintf(stderr,
-"  InnoDB: ERROR: over 9 / 10 of the buffer pool is occupied by\n"
+"  InnoDB: ERROR: over 95 percent of the buffer pool is occupied by\n"
 "InnoDB: lock heaps or the adaptive hash index! Check that your\n"
 "InnoDB: transactions do not set too many row locks.\n"
 "InnoDB: Your buffer pool size is %lu MB. Maybe you should make\n"
@@ -356,17 +356,17 @@ buf_LRU_get_free_block(void)
 		ut_error;
 
 	} else if (!recv_recovery_on && UT_LIST_GET_LEN(buf_pool->free)
-	   + UT_LIST_GET_LEN(buf_pool->LRU) < buf_pool->max_size / 5) {
+	   + UT_LIST_GET_LEN(buf_pool->LRU) < buf_pool->max_size / 3) {
 
 		if (!buf_lru_switched_on_innodb_mon) {
 
-			/* Over 80 % of the buffer pool is occupied by lock
+	   		/* Over 67 % of the buffer pool is occupied by lock
 			heaps or the adaptive hash index. This may be a memory
 			leak! */
 
 			ut_print_timestamp(stderr);
 			fprintf(stderr,
-"  InnoDB: WARNING: over 4 / 5 of the buffer pool is occupied by\n"
+"  InnoDB: WARNING: over 67 percent of the buffer pool is occupied by\n"
 "InnoDB: lock heaps or the adaptive hash index! Check that your\n"
 "InnoDB: transactions do not set too many row locks.\n"
 "InnoDB: Your buffer pool size is %lu MB. Maybe you should make\n"

handler/ha_innodb.cc

@@ -539,11 +539,18 @@ convert_error_code_to_mysql(
 
 		return(HA_ERR_NO_SAVEPOINT);
 	} else if (error == (int) DB_LOCK_TABLE_FULL) {
-
-		return(HA_ERR_LOCK_TABLE_FULL);
-	} else {
-		return(-1);			// Unknown error
-	}
+ 		/* Since we rolled back the whole transaction, we must
+ 		tell it also to MySQL so that MySQL knows to empty the
+ 		cached binlog for this transaction */
+
+ 		if (thd) {
+ 			ha_rollback(thd);
+ 		}
+
+    		return(HA_ERR_LOCK_TABLE_FULL);
+    	} else {
+    		return(-1);			// Unknown error
+    	}
 }
 
 /*****************************************************************

include/btr0cur.h

@@ -459,7 +459,10 @@ btr_store_big_rec_extern_fields(
 	dict_index_t*	index,		/* in: index of rec; the index tree
 					MUST be X-latched */
 	rec_t*		rec,		/* in: record */
-	const ulint*	offsets,	/* in: rec_get_offsets(rec, index) */
+	const ulint*	offsets,	/* in: rec_get_offsets(rec, index);
+					the "external storage" flags in offsets
+					will not correspond to rec when
+					this function returns */
 	big_rec_t*	big_rec_vec,	/* in: vector containing fields
 					to be stored externally */
 	mtr_t*		local_mtr);	/* in: mtr containing the latch to

include/buf0lru.h

@@ -26,14 +26,14 @@ void
 buf_LRU_try_free_flushed_blocks(void);
 /*==================================*/
 /**********************************************************************
-Returns TRUE if less than 15 % of the buffer pool is available. This can be
+Returns TRUE if less than 25 % of the buffer pool is available. This can be
 used in heuristics to prevent huge transactions eating up the whole buffer
 pool for their locks. */
 
 ibool
 buf_LRU_buf_pool_running_out(void);
 /*==============================*/
-				/* out: TRUE if less than 15 % of buffer pool
+				/* out: TRUE if less than 25 % of buffer pool
 				left */
 
 /*#######################################################################

row/row0ins.c

@@ -28,6 +28,7 @@ Created 4/20/1996 Heikki Tuuri
 #include "eval0eval.h"
 #include "data0data.h"
 #include "usr0sess.h"
+#include "buf0lru.h"
 
 #define	ROW_INS_PREV	1
 #define	ROW_INS_NEXT	2
@@ -279,10 +280,17 @@ row_ins_sec_index_entry_by_modify(
 		}
 	} else {
 		ut_a(mode == BTR_MODIFY_TREE);
+		if (buf_LRU_buf_pool_running_out()) {
+
+			err = DB_LOCK_TABLE_FULL;
+
+			goto func_exit;
+		}
+
 		err = btr_cur_pessimistic_update(BTR_KEEP_SYS_FLAG, cursor,
 					&dummy_big_rec, update, 0, thr, mtr);
 	}
-
+func_exit:
 	mem_heap_free(heap);
 
 	return(err);
@@ -344,10 +352,16 @@ row_ins_clust_index_entry_by_modify(
 		}
 	} else {
 		ut_a(mode == BTR_MODIFY_TREE);
+		if (buf_LRU_buf_pool_running_out()) {
+
+			err = DB_LOCK_TABLE_FULL;
+
+			goto func_exit;
+		}
 		err = btr_cur_pessimistic_update(0, cursor, big_rec, update,
 								0, thr, mtr);
 	}
-
+func_exit:
 	mem_heap_free(heap);
 
 	return(err);
@@ -2091,6 +2105,12 @@ row_ins_index_entry_low(
 					&insert_rec, &big_rec, thr, &mtr);
 		} else {
 			ut_a(mode == BTR_MODIFY_TREE);
+			if (buf_LRU_buf_pool_running_out()) {
+
+				err = DB_LOCK_TABLE_FULL;
+
+				goto function_exit;
+			}
 			err = btr_cur_pessimistic_insert(0, &cursor, entry,
 					&insert_rec, &big_rec, thr, &mtr);
 		}

row/row0upd.c

@@ -28,6 +28,7 @@ Created 12/27/1996 Heikki Tuuri
 #include "log0log.h"
 #include "pars0sym.h"
 #include "eval0eval.h"
+#include "buf0lru.h"
 
 
 /* What kind of latch and lock can we assume when the control comes to
@@ -1541,6 +1542,10 @@ row_upd_clust_rec(
 		return(err);
 	}
 
+	if (buf_LRU_buf_pool_running_out()) {
+
+		return(DB_LOCK_TABLE_FULL);
+	}
 	/* We may have to modify the tree structure: do a pessimistic descent
 	down the index tree */