From ca0c96fc8925d36ea0c5121520bf7d8f12ad90a5 Mon Sep 17 00:00:00 2001 From: Monty Date: Thu, 22 Mar 2018 20:03:54 +0200 Subject: Adjust table_open_cache to avoid getting error 24 (too many open files) MDEV--15609 engines/funcs.crash_manytables_number crashes with error 24 (too many open files) MDEV-10286 Adjustment of table_open_cache according to system limits does not work when open-files-limit option is provided Fixed by adjusting tc_size downwards if there is not enough file descriptors to use. Other changes: - Ensure that there is 30 (was 10) extra file descriptors for other usage - Decrease TABLE_OPEN_CACHE_MIN to 200 as it's better to have a smaller table cache than getting error 24 - Increase minimum of max_connections and table_open_cache from 1 to 10 as 1 is not usable for any real application, only for testing. --- sql/sql_const.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sql/sql_const.h') diff --git a/sql/sql_const.h b/sql/sql_const.h index 946cf13e2ae..0cd214d8bc7 100644 --- a/sql/sql_const.h +++ b/sql/sql_const.h @@ -124,7 +124,7 @@ #define MAX_ACCEPT_RETRY 10 // Test accept this many times #define MAX_FIELDS_BEFORE_HASH 32 #define USER_VARS_HASH_SIZE 16 -#define TABLE_OPEN_CACHE_MIN 400 +#define TABLE_OPEN_CACHE_MIN 200 #define TABLE_OPEN_CACHE_DEFAULT 2000 #define TABLE_DEF_CACHE_DEFAULT 400 /** -- cgit v1.2.1