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https://github.com/MariaDB/server.git
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541 lines
18 KiB
Plaintext
541 lines
18 KiB
Plaintext
#
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# Test of multiple key caches, simple and segmented
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#
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--disable_warnings
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drop table if exists t1, t2, t3;
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--enable_warnings
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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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SET @save_key_cache_file_hash_size=@@key_cache_file_hash_size;
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SELECT @@key_buffer_size, @@small.key_buffer_size;
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# Change default key cache size
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SET @@global.key_buffer_size=16*1024*1024;
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SET @@global.default.key_buffer_size=16*1024*1024;
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SET @@global.default.key_buffer_size=16*1024*1024;
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SET @@global.small.key_buffer_size=1*1024*1024;
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SET @@global.medium.key_buffer_size=4*1024*1024;
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# Drop buffer
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SET @@global.medium.key_buffer_size=0;
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# Test double drop
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SET @@global.medium.key_buffer_size=0;
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# Print key buffer with different syntaxes
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SHOW VARIABLES like "key_buffer_size";
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SELECT @@key_buffer_size;
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SELECT @@global.key_buffer_size;
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SELECT @@global.default.key_buffer_size;
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SELECT @@global.default.`key_buffer_size`;
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SELECT @@global.`default`.`key_buffer_size`;
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SELECT @@`default`.key_buffer_size;
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SELECT @@small.key_buffer_size;
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SELECT @@medium.key_buffer_size;
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SET @@global.key_buffer_size=@save_key_buffer_size;
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#
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# Errors
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#
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--error 1064
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SELECT @@default.key_buffer_size;
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--error 1272
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SELECT @@skr.storage_engine="test";
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select @@keycache1.key_cache_block_size;
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select @@keycache1.key_buffer_size;
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set global keycache1.key_cache_block_size=2048;
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select @@keycache1.key_buffer_size;
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select @@keycache1.key_cache_block_size;
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set global keycache1.key_buffer_size=1*1024*1024;
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select @@keycache1.key_buffer_size;
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select @@keycache1.key_cache_block_size;
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set global keycache2.key_buffer_size=4*1024*1024;
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select @@keycache2.key_buffer_size;
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select @@keycache2.key_cache_block_size;
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set global keycache1.key_buffer_size=0;
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select @@keycache1.key_buffer_size;
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select @@keycache1.key_cache_block_size;
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select @@key_buffer_size;
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select @@key_cache_block_size;
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select @@key_cache_file_hash_size;
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set global keycache1.key_buffer_size=1024*1024;
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let org_key_blocks_unused=`select unused_blocks as unused from information_schema.key_caches where key_cache_name="default"`;
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--disable_query_log
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eval set @org_key_blocks_unused=$org_key_blocks_unused;
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--enable_query_log
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create table t1 (p int primary key, a char(10)) delay_key_write=1;
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create table t2 (p int primary key, i int, a char(10), key k1(i), key k2(a));
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select @org_key_blocks_unused-unused_blocks as key_blocks_unused, used_blocks as key_blocks_used from information_schema.key_caches where key_cache_name="default";
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insert into t1 values (1, 'qqqq'), (11, '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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select * from t2;
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update t1 set p=2 where p=1;
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update t2 set i=2 where i=1;
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select @org_key_blocks_unused-unused_blocks as key_blocks_unused, used_blocks as key_blocks_used from information_schema.key_caches where key_cache_name="default";
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cache index t1 key (`primary`) in keycache1;
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explain select p from t1;
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select p from t1;
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explain select i from t2;
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select i from t2;
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explain select count(*) from t1, t2 where t1.p = t2.i;
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select count(*) from t1, t2 where t1.p = t2.i;
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cache index t2 in keycache1;
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update t2 set p=p+1000, i=2 where a='qqqq';
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cache index t2 in keycache2;
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insert into t2 values (2000, 3, 'yyyy');
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cache index t2 in keycache1;
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update t2 set p=3000 where a='zzzz';
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select * from t2;
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explain select p from t2;
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select p from t2;
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explain select i from t2;
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select i from t2;
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explain select a from t2;
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select a from t2;
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# Test some error conditions
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--error 1284
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cache index t1 in unknown_key_cache;
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cache index t1 key (unknown_key) in keycache1;
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select @@keycache2.key_buffer_size;
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select @@keycache2.key_cache_block_size;
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set global keycache2.key_buffer_size=0;
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select @@keycache2.key_buffer_size;
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select @@keycache2.key_cache_block_size;
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set global keycache2.key_buffer_size=1024*1024;
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select @@keycache2.key_buffer_size;
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update t2 set p=4000 where a='zzzz';
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update t1 set p=p+1;
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set global keycache1.key_buffer_size=0;
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select * from t2;
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select p from t2;
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explain select i from t2;
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select i from t2;
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explain select a from t2;
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select a from t2;
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select * from t1;
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select p from t1;
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# Use the 'small' key cache
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create table t3 (like t1);
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cache index t3 in small;
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insert into t3 select * from t1;
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cache index t3 in keycache2;
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cache index t1,t2 in default;
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drop table t1,t2,t3;
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select @org_key_blocks_unused-unused_blocks as key_blocks_unused, used_blocks as key_blocks_used from information_schema.key_caches where key_cache_name="default";
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create table t1 (a int primary key);
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cache index t1 in keycache2;
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insert t1 values (1),(2),(3),(4),(5),(6),(7),(8);
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# delete keycache2, t1 is reassigned to default
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set global keycache2.key_buffer_size=0;
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select * from t1;
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drop table t1;
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# Test to set up a too small size for a key cache (bug #2064)
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set global keycache3.key_buffer_size=100;
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set global keycache3.key_buffer_size=0;
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# Test case for bug 6447
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create table t1 (mytext text, FULLTEXT (mytext));
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insert t1 values ('aaabbb');
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check table t1;
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set @my_key_cache_block_size= @@global.key_cache_block_size;
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set GLOBAL key_cache_block_size=2048;
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check table t1;
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drop table t1;
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# Restore the changed variable value
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set global key_cache_block_size= @my_key_cache_block_size;
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#
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# Bug #19079: corrupted index when key_cache_block_size is not multiple of
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# myisam_block_size
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CREATE TABLE t1(a int NOT NULL AUTO_INCREMENT PRIMARY KEY);
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SET @my_key_cache_block_size= @@global.key_cache_block_size;
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SET GLOBAL key_cache_block_size=1536;
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INSERT INTO t1 VALUES (1);
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SELECT @@key_cache_block_size;
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CHECK TABLE t1;
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DROP TABLE t1;
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CREATE TABLE t1(a int NOT NULL AUTO_INCREMENT PRIMARY KEY, b int);
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CREATE TABLE t2(a int NOT NULL AUTO_INCREMENT PRIMARY KEY, b int);
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SET GLOBAL key_cache_block_size=1536;
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INSERT INTO t1 VALUES (1,0);
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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INSERT INTO t2(b) SELECT b FROM t1;
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INSERT INTO t1(b) SELECT b FROM t2;
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SELECT COUNT(*) FROM t1;
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SELECT @@key_cache_block_size;
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CHECK TABLE t1;
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DROP TABLE t1,t2;
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# Restore changed variables
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set global key_cache_block_size= @my_key_cache_block_size;
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#
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# Bug#10473 - Can't set 'key_buffer_size' system variable to ZERO
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# (One cannot drop the default key cache.)
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#
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--error ER_WARN_CANT_DROP_DEFAULT_KEYCACHE
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set @@global.key_buffer_size=0;
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select @@global.key_buffer_size;
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#
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# Bug#28478 - Improper key_cache_block_size corrupts MyISAM tables
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#
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SET @bug28478_key_cache_block_size= @@global.key_cache_block_size;
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SET GLOBAL key_cache_block_size= 1536;
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CREATE TABLE t1 (
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id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
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c1 CHAR(150),
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c2 CHAR(150),
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c3 CHAR(150),
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KEY(c1, c2, c3)
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) ENGINE= MyISAM;
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INSERT INTO t1 (c1, c2, c3) VALUES
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('a', 'b', 'c'), ('b', 'c', 'd'), ('c', 'd', 'e'), ('d', 'e', 'f'),
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('e', 'f', 'g'), ('f', 'g', 'h'), ('g', 'h', 'i'), ('h', 'i', 'j'),
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('i', 'j', 'k'), ('j', 'k', 'l'), ('k', 'l', 'm'), ('l', 'm', 'n'),
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('m', 'n', 'o'), ('n', 'o', 'p'), ('o', 'p', 'q'), ('p', 'q', 'r'),
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('q', 'r', 's'), ('r', 's', 't'), ('s', 't', 'u'), ('t', 'u', 'v'),
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('u', 'v', 'w'), ('v', 'w', 'x'), ('w', 'x', 'y'), ('x', 'y', 'z');
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INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
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INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
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INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
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CHECK TABLE t1;
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SHOW VARIABLES LIKE 'key_cache_block_size';
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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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# End of 4.1 tests
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--echo #
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--echo # Bug#12361113: crash when load index into cache
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--echo #
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--echo # Note that this creates an empty disabled key cache!
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SET GLOBAL key_cache_none.key_cache_block_size = 1024;
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CREATE TABLE t1 (a INT, b INTEGER NOT NULL, KEY (b) ) ENGINE = MYISAM;
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INSERT INTO t1 VALUES (1, 1);
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--error ER_UNKNOWN_KEY_CACHE
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CACHE INDEX t1 in key_cache_none;
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--echo # The bug crashed the server at LOAD INDEX below. Now it will succeed
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--echo # since the default cache is used due to CACHE INDEX failed for
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--echo # key_cache_none.
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LOAD INDEX INTO CACHE t1;
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DROP TABLE t1;
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# End of 5.1 tests
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#
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# Test cases for segmented key caches
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#
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# Test usage of the KEY_CACHE table from information schema
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# for a simple key cache
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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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select @@key_cache_block_size;
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select @@key_cache_segments;
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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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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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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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select * from t2;
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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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select * from information_schema.session_status where variable_name like 'key_%' and variable_name != 'Key_blocks_unused';
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select variable_value into @key_blocks_unused from information_schema.session_status where variable_name = 'Key_blocks_unused';
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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delete from t2 where a='zzzz';
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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delete from t1;
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delete from t2;
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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# For the key cache with 2 segments execute the same sequence of
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# statements as for the simple cache above.
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# The statistical information on the number of i/o requests and
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# the number of is expected to be the same.
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set global key_cache_segments=2;
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select @@key_cache_segments;
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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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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select * from t2;
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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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select * from information_schema.session_status where variable_name like 'key_%' and variable_name != 'Key_blocks_unused';
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select variable_value < @key_blocks_unused from information_schema.session_status where variable_name = 'Key_blocks_unused';
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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delete from t1;
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delete from t2;
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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# Check that we can work with one segment with the same results
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set global key_cache_segments=1;
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select @@key_cache_segments;
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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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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select * from t2;
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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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select * from information_schema.session_status where variable_name like 'key_%' and variable_name != 'Key_blocks_unused';
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select variable_value = @key_blocks_unused from information_schema.session_status where variable_name = 'Key_blocks_unused';
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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delete from t1;
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delete from t2;
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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flush tables; flush status;
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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# Switch back to 2 segments
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set global key_buffer_size=32*1024;
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set global key_cache_file_hash_size=128;
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select @@key_buffer_size;
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set global key_cache_segments=2;
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select @@key_cache_segments;
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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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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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select * from t2;
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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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--replace_column 7 #
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select * from information_schema.key_caches where segment_number is null;
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# Add more rows to tables t1 and t2
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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;
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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;
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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 t2(i,a) select i,a from t2;
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insert into t2(i,a) select i,a from t2;
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insert into t2(i,a) select i,a from t2;
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insert into t2(i,a) select i,a from t2;
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insert into t2(i,a) select i,a from t2;
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insert into t2(i,a) select i,a from t2;
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insert into t2(i,a) select i,a from t2;
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insert into t2(i,a) select i,a from t2;
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--replace_column 6 # 7 # 10 #
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select * from information_schema.key_caches where segment_number is null;
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select * from t1 where p between 1010 and 1020 ;
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select * from t2 where p between 1010 and 1020 ;
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--replace_column 6 # 7 # 10 #
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select * from information_schema.key_caches where segment_number is null;
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flush tables; flush status;
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update t1 set a='zzzz' where a='qqqq';
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update t2 set i=1 where i=2;
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--replace_column 6 # 7 #
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select * from information_schema.key_caches where segment_number is null;
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# Now test how we can work with 7 segments
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set global keycache1.key_buffer_size=256*1024;
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select @@keycache1.key_buffer_size;
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set global keycache1.key_cache_segments=7;
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select @@keycache1.key_cache_segments;
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--replace_column 6 # 7 #
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select * from information_schema.key_caches where segment_number is null;
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--replace_column 7 #
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select * from information_schema.key_caches where key_cache_name like "key%"
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and segment_number is null;
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|
|
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cache index t1 key (`primary`) in keycache1;
|
|
|
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explain select p from t1 where p between 1010 and 1020;
|
|
select p from t1 where p between 1010 and 1020;
|
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explain select i from t2 where p between 1010 and 1020;
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select i from t2 where p between 1010 and 1020;
|
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explain select count(*) from t1, t2 where t1.p = t2.i;
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select count(*) from t1, t2 where t1.p = t2.i;
|
|
|
|
--replace_column 6 # 7 #
|
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select * from information_schema.key_caches where segment_number is null;
|
|
--replace_column 7 #
|
|
select * from information_schema.key_caches where key_cache_name like "key%"
|
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and segment_number is null;
|
|
|
|
cache index t2 in keycache1;
|
|
update t2 set p=p+3000, i=2 where a='qqqq';
|
|
--replace_column 7 #
|
|
select * from information_schema.key_caches where key_cache_name like "key%"
|
|
and segment_number is null;
|
|
|
|
set global keycache2.key_buffer_size=1024*1024;
|
|
cache index t2 in keycache2;
|
|
insert into t2 values (2000, 3, 'yyyy');
|
|
--replace_column 7 #
|
|
select * from information_schema.key_caches where key_cache_name like "keycache2"
|
|
and segment_number is null;
|
|
--replace_column 7 #
|
|
select * from information_schema.key_caches where key_cache_name like "key%"
|
|
and segment_number is null;
|
|
|
|
cache index t2 in keycache1;
|
|
update t2 set p=p+5000 where a='zzzz';
|
|
select * from t2 where p between 1010 and 1020;
|
|
explain select p from t2 where p between 1010 and 1020;
|
|
select p from t2 where p between 1010 and 1020;
|
|
explain select i from t2 where a='yyyy' and i=3;
|
|
select i from t2 where a='yyyy' and i=3;
|
|
explain select a from t2 where a='yyyy' and i=3;
|
|
select a from t2 where a='yyyy' and i=3 ;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_cache_block_size=2*1024;
|
|
insert into t2 values (7000, 3, 'yyyy');
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_cache_block_size=8*1024;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
insert into t2 values (8000, 3, 'yyyy');
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_buffer_size=64*1024;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_cache_block_size=2*1024;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_cache_block_size=8*1024;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_buffer_size=0;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_cache_block_size=8*1024;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_buffer_size=0;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_buffer_size=128*1024;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
set global keycache1.key_cache_block_size=1024;
|
|
--replace_column 6 # 7 #
|
|
select * from information_schema.key_caches where segment_number is null;
|
|
|
|
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;
|
|
set global key_cache_file_hash_size=@save_key_cache_file_hash_size;
|
|
|
|
# End of 5.2 tests
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