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-rw-r--r--sql/mysqld.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index b145c5ace10..7bb357827c8 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -5651,6 +5651,7 @@ enum options_mysqld
OPT_MYISAM_BLOCK_SIZE, OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
OPT_MYISAM_MAX_SORT_FILE_SIZE, OPT_MYISAM_SORT_BUFFER_SIZE,
OPT_MYISAM_USE_MMAP, OPT_MYISAM_REPAIR_THREADS,
+ OPT_MYISAM_MMAP_SIZE,
OPT_MYISAM_STATS_METHOD,
OPT_NET_BUFFER_LENGTH, OPT_NET_RETRY_COUNT,
OPT_NET_READ_TIMEOUT, OPT_NET_WRITE_TIMEOUT,
@@ -6802,6 +6803,10 @@ The minimum value for this variable is 4096.",
(uchar**) &max_system_variables.myisam_max_sort_file_size, 0,
GET_ULL, REQUIRED_ARG, (longlong) LONG_MAX, 0, (ulonglong) MAX_FILE_SIZE,
0, 1024*1024, 0},
+ {"myisam_mmap_size", OPT_MYISAM_MMAP_SIZE,
+ "Can be used to restrict the total memory used for memory mmaping of myisam files",
+ (uchar**) &myisam_mmap_size, (uchar**) &myisam_mmap_size, 0,
+ GET_ULL, REQUIRED_ARG, SIZE_T_MAX, MEMMAP_EXTRA_MARGIN, SIZE_T_MAX, 0, 1, 0},
{"myisam_repair_threads", OPT_MYISAM_REPAIR_THREADS,
"Number of threads to use when repairing MyISAM tables. The value of 1 disables parallel repair.",
(uchar**) &global_system_variables.myisam_repair_threads,