mirror of
https://github.com/MariaDB/server.git
synced 2025-08-01 03:47:19 +03:00
MariaDB 5.2 -> MariaDB 5.3 merge
This commit is contained in:
Sergey Petrunya
@ -1,5 +1,7 @@
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drop table if exists t1, t2, t3;
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SET @save_key_buffer=@@key_buffer_size;
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SET @save_key_buffer_size=@@key_buffer_size;
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SET @save_key_cache_block_size=@@key_cache_block_size;
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SET @save_key_cache_segments=@@key_cache_segments;
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SELECT @@key_buffer_size, @@small.key_buffer_size;
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@@key_buffer_size @@small.key_buffer_size
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2097152 131072
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@ -37,7 +39,7 @@ SELECT @@small.key_buffer_size;
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SELECT @@medium.key_buffer_size;
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@@medium.key_buffer_size
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0
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SET @@global.key_buffer_size=@save_key_buffer;
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SET @@global.key_buffer_size=@save_key_buffer_size;
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SELECT @@default.key_buffer_size;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'default.key_buffer_size' at line 1
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SELECT @@skr.storage_engine="test";
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@ -366,3 +368,432 @@ Variable_name Value
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key_cache_block_size 1536
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SET GLOBAL key_cache_block_size= @bug28478_key_cache_block_size;
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DROP TABLE t1;
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set global key_buffer_size=@save_key_buffer_size;
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set global key_cache_block_size=@save_key_cache_block_size;
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select @@key_buffer_size;
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@@key_buffer_size
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2097152
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select @@key_cache_block_size;
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@@key_cache_block_size
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1024
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select @@key_cache_segments;
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@@key_cache_segments
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0
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create table t1 (
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p int not null auto_increment primary key,
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a char(10));
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create table t2 (
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p int not null auto_increment primary key,
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i int, a char(10), key k1(i), key k2(a));
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select @@key_cache_segments;
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@@key_cache_segments
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0
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default NULL NULL 2097152 1024 0 # 0 0 0 0 0
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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insert into t1 values (1, 'qqqq'), (2, 'yyyy');
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insert into t2 values (1, 1, 'qqqq'), (2, 1, 'pppp'),
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(3, 1, 'yyyy'), (4, 3, 'zzzz');
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select * from t1;
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p a
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1 qqqq
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2 yyyy
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select * from t2;
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p i a
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1 1 qqqq
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2 1 pppp
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3 1 yyyy
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4 3 zzzz
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update t1 set p=3 where p=1;
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update t2 set i=2 where i=1;
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show status like 'key_%';
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Variable_name Value
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Key_blocks_not_flushed 0
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Key_blocks_unused KEY_BLOCKS_UNUSED
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Key_blocks_used 4
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Key_read_requests 22
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Key_reads 0
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Key_write_requests 26
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Key_writes 6
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default NULL NULL 2097152 1024 4 # 0 22 0 26 6
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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delete from t2 where a='zzzz';
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default NULL NULL 2097152 1024 4 # 0 29 0 32 9
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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delete from t1;
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delete from t2;
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default NULL NULL 2097152 1024 4 # 0 29 0 32 9
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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set global key_cache_segments=2;
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select @@key_cache_segments;
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@@key_cache_segments
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2
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default 2 NULL 2097152 1024 0 # 0 0 0 0 0
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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insert into t1 values (1, 'qqqq'), (2, 'yyyy');
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insert into t2 values (1, 1, 'qqqq'), (2, 1, 'pppp'),
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(3, 1, 'yyyy'), (4, 3, 'zzzz');
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select * from t1;
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p a
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1 qqqq
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2 yyyy
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select * from t2;
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p i a
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1 1 qqqq
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2 1 pppp
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3 1 yyyy
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4 3 zzzz
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update t1 set p=3 where p=1;
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update t2 set i=2 where i=1;
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show status like 'key_%';
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Variable_name Value
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Key_blocks_not_flushed 0
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Key_blocks_unused KEY_BLOCKS_UNUSED
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Key_blocks_used 4
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Key_read_requests 22
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Key_reads 0
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Key_write_requests 26
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Key_writes 6
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default 2 NULL 2097152 1024 4 # 0 22 0 26 6
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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delete from t1;
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delete from t2;
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default 2 NULL 2097152 1024 4 # 0 22 0 26 6
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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set global key_cache_segments=1;
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select @@key_cache_segments;
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@@key_cache_segments
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1
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default 1 NULL 2097152 1024 0 # 0 0 0 0 0
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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insert into t1 values (1, 'qqqq'), (2, 'yyyy');
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insert into t2 values (1, 1, 'qqqq'), (2, 1, 'pppp'),
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(3, 1, 'yyyy'), (4, 3, 'zzzz');
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select * from t1;
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p a
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1 qqqq
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2 yyyy
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select * from t2;
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p i a
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1 1 qqqq
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2 1 pppp
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3 1 yyyy
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4 3 zzzz
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update t1 set p=3 where p=1;
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update t2 set i=2 where i=1;
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show status like 'key_%';
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Variable_name Value
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Key_blocks_not_flushed 0
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Key_blocks_unused KEY_BLOCKS_UNUSED
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Key_blocks_used 4
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Key_read_requests 22
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Key_reads 0
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Key_write_requests 26
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Key_writes 6
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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||||
default 1 NULL 2097152 1024 4 # 0 22 0 26 6
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small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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delete from t1;
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delete from t2;
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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||||
default 1 NULL 2097152 1024 4 # 0 22 0 26 6
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||||
small NULL NULL 1048576 1024 1 # 0 1 0 2 1
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flush tables;
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flush status;
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select * from information_schema.key_caches where segment_number is null;
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KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
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default 1 NULL 2097152 1024 4 # 0 0 0 0 0
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small NULL NULL 1048576 1024 1 # 0 0 0 0 0
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set global key_buffer_size=32*1024;
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select @@key_buffer_size;
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@@key_buffer_size
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32768
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set global key_cache_segments=2;
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select @@key_cache_segments;
|
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@@key_cache_segments
|
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2
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select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 0 # 0 0 0 0 0
|
||||
small NULL NULL 1048576 1024 1 # 0 0 0 0 0
|
||||
insert into t1 values (1, 'qqqq'), (2, 'yyyy');
|
||||
insert into t2 values (1, 1, 'qqqq'), (2, 1, 'pppp'),
|
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(3, 1, 'yyyy'), (4, 3, 'zzzz');
|
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select * from t1;
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p a
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1 qqqq
|
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2 yyyy
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select * from t2;
|
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p i a
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1 1 qqqq
|
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2 1 pppp
|
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3 1 yyyy
|
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4 3 zzzz
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update t1 set p=3 where p=1;
|
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update t2 set i=2 where i=1;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 4 # 0 22 0 26 6
|
||||
small NULL NULL 1048576 1024 1 # 0 0 0 0 0
|
||||
insert into t1(a) select a from t1;
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||||
insert into t1(a) select a from t1;
|
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insert into t1(a) select a from t1;
|
||||
insert into t1(a) select a from t1;
|
||||
insert into t1(a) select a from t1;
|
||||
insert into t1(a) select a from t1;
|
||||
insert into t1(a) select a from t1;
|
||||
insert into t1(a) select a from t1;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
insert into t2(i,a) select i,a from t2;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 6733 # 3684 103
|
||||
small NULL NULL 1048576 1024 # # 0 0 # 0 0
|
||||
select * from t1 where p between 1010 and 1020 ;
|
||||
p a
|
||||
select * from t2 where p between 1010 and 1020 ;
|
||||
p i a
|
||||
1010 2 pppp
|
||||
1011 2 yyyy
|
||||
1012 3 zzzz
|
||||
1013 2 qqqq
|
||||
1014 2 pppp
|
||||
1015 2 yyyy
|
||||
1016 3 zzzz
|
||||
1017 2 qqqq
|
||||
1018 2 pppp
|
||||
1019 2 yyyy
|
||||
1020 3 zzzz
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 6750 # 3684 103
|
||||
small NULL NULL 1048576 1024 # # 0 0 # 0 0
|
||||
flush tables;
|
||||
flush status;
|
||||
update t1 set a='zzzz' where a='qqqq';
|
||||
update t2 set i=1 where i=2;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3076 18 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
set global keycache1.key_buffer_size=256*1024;
|
||||
select @@keycache1.key_buffer_size;
|
||||
@@keycache1.key_buffer_size
|
||||
262144
|
||||
set global keycache1.key_cache_segments=7;
|
||||
select @@keycache1.key_cache_segments;
|
||||
@@keycache1.key_cache_segments
|
||||
7
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3076 18 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 7 NULL 262143 2048 # # 0 0 0 0 0
|
||||
select * from information_schema.key_caches where key_cache_name like "key%"
|
||||
and segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
keycache1 7 NULL 262143 2048 0 # 0 0 0 0 0
|
||||
cache index t1 key (`primary`) in keycache1;
|
||||
Table Op Msg_type Msg_text
|
||||
test.t1 assign_to_keycache status OK
|
||||
explain select p from t1 where p between 1010 and 1020;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 1 Using where; Using index
|
||||
select p from t1 where p between 1010 and 1020;
|
||||
p
|
||||
explain select i from t2 where p between 1010 and 1020;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range PRIMARY PRIMARY 4 NULL 28 Using index condition; Using MRR
|
||||
select i from t2 where p between 1010 and 1020;
|
||||
i
|
||||
1
|
||||
1
|
||||
3
|
||||
1
|
||||
1
|
||||
1
|
||||
3
|
||||
1
|
||||
1
|
||||
1
|
||||
3
|
||||
explain select count(*) from t1, t2 where t1.p = t2.i;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 index k1 k1 5 NULL 1024 Using index
|
||||
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.i 1 Using index
|
||||
select count(*) from t1, t2 where t1.p = t2.i;
|
||||
count(*)
|
||||
256
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 7 NULL 262143 2048 # # 0 14 3 0 0
|
||||
select * from information_schema.key_caches where key_cache_name like "key%"
|
||||
and segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
keycache1 7 NULL 262143 2048 3 # 0 14 3 0 0
|
||||
cache index t2 in keycache1;
|
||||
Table Op Msg_type Msg_text
|
||||
test.t2 assign_to_keycache status OK
|
||||
update t2 set p=p+3000, i=2 where a='qqqq';
|
||||
select * from information_schema.key_caches where key_cache_name like "key%"
|
||||
and segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
keycache1 7 NULL 262143 2048 25 # 0 2082 25 1071 19
|
||||
set global keycache2.key_buffer_size=1024*1024;
|
||||
cache index t2 in keycache2;
|
||||
Table Op Msg_type Msg_text
|
||||
test.t2 assign_to_keycache status OK
|
||||
insert into t2 values (2000, 3, 'yyyy');
|
||||
select * from information_schema.key_caches where key_cache_name like "keycache2"
|
||||
and segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
keycache2 NULL NULL 1048576 1024 6 # 0 6 6 3 3
|
||||
select * from information_schema.key_caches where key_cache_name like "key%"
|
||||
and segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
keycache1 7 NULL 262143 2048 25 # 0 2082 25 1071 19
|
||||
keycache2 NULL NULL 1048576 1024 6 # 0 6 6 3 3
|
||||
cache index t2 in keycache1;
|
||||
Table Op Msg_type Msg_text
|
||||
test.t2 assign_to_keycache status OK
|
||||
update t2 set p=p+5000 where a='zzzz';
|
||||
select * from t2 where p between 1010 and 1020;
|
||||
p i a
|
||||
1010 1 pppp
|
||||
1011 1 yyyy
|
||||
1014 1 pppp
|
||||
1015 1 yyyy
|
||||
1018 1 pppp
|
||||
1019 1 yyyy
|
||||
explain select p from t2 where p between 1010 and 1020;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range PRIMARY PRIMARY 4 NULL 7 Using where; Using index
|
||||
select p from t2 where p between 1010 and 1020;
|
||||
p
|
||||
1010
|
||||
1011
|
||||
1014
|
||||
1015
|
||||
1018
|
||||
1019
|
||||
explain select i from t2 where a='yyyy' and i=3;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 ref k1,k2 k1 5 const 188 Using where
|
||||
select i from t2 where a='yyyy' and i=3;
|
||||
i
|
||||
3
|
||||
explain select a from t2 where a='yyyy' and i=3;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 ref k1,k2 k1 5 const 188 Using where
|
||||
select a from t2 where a='yyyy' and i=3 ;
|
||||
a
|
||||
yyyy
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 7 NULL 262143 2048 # # 0 3201 43 1594 30
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_cache_block_size=2*1024;
|
||||
insert into t2 values (7000, 3, 'yyyy');
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 7 NULL 262143 2048 # # 0 6 6 3 3
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_cache_block_size=8*1024;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 3 NULL 262143 8192 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
insert into t2 values (8000, 3, 'yyyy');
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 3 NULL 262143 8192 # # 0 6 5 3 3
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_buffer_size=64*1024;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_cache_block_size=2*1024;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 3 NULL 65535 2048 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_cache_block_size=8*1024;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_buffer_size=0;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_cache_block_size=8*1024;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_buffer_size=0;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_buffer_size=128*1024;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 1 NULL 131072 8192 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
set global keycache1.key_cache_block_size=1024;
|
||||
select * from information_schema.key_caches where segment_number is null;
|
||||
KEY_CACHE_NAME SEGMENTS SEGMENT_NUMBER FULL_SIZE BLOCK_SIZE USED_BLOCKS UNUSED_BLOCKS DIRTY_BLOCKS READ_REQUESTS READS WRITE_REQUESTS WRITES
|
||||
default 2 NULL 32768 1024 # # 0 3172 24 1552 18
|
||||
small NULL NULL 1048576 1024 # # 0 0 0 0 0
|
||||
keycache1 7 NULL 131068 1024 # # 0 0 0 0 0
|
||||
keycache2 NULL NULL 1048576 1024 # # 0 6 6 3 3
|
||||
drop table t1,t2;
|
||||
set global keycache1.key_buffer_size=0;
|
||||
set global keycache2.key_buffer_size=0;
|
||||
set global key_buffer_size=@save_key_buffer_size;
|
||||
set global key_cache_segments=@save_key_cache_segments;
|
||||
|
||||
Reference in New Issue
Block a user