Description:
I started 32-bit version of mysqld and specified a 4095M key_buffer_size, which is too large for a 32-bit process to allocate.
E:\mysql-5.1.24-rc-win32\bin>mysqld --console --skip-grant-tables --skip-name-resolve --key_buffer_size=4095M --log-warn=2
080426 10:34:35 InnoDB: Started; log sequence number 0 46409
080426 10:34:35 [Note] mysqld: ready for connections.
Version: '5.1.24-rc-community' socket: '' port: 3306 MySQL Community Server (GPL)
Why is there no error or warning?
mysql> show global status like '%key%';
+------------------------+-----------+
| Variable_name | Value |
+------------------------+-----------+
| Com_assign_to_keycache | 4805 |
| Com_preload_keys | 5 |
| Com_show_keys | 1 |
| Handler_read_key | 9005232 |
| Key_blocks_not_flushed | 35306 |
| Key_blocks_unused | 268918 |
| Key_blocks_used | 897278 |
| Key_read_requests | 418183673 |
| Key_reads | 1420543 |
| Key_write_requests | 103367402 |
| Key_writes | 57003844 |
+------------------------+-----------+
11 rows in set (0.01 sec)
mysql> select @@global.key_buffer_size;
+--------------------------+
| @@global.key_buffer_size |
+--------------------------+
| 4293918720 |
+--------------------------+
1 row in set (0.05 sec)
Task manager showed 1.3G of memory used up.
How to repeat:
mysqld --console --skip-grant-tables --skip-name-resolve --key_buffer_size=4095M --log-warn=2
