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Temporary tables are typically short-lived, and temporary tables are assumed to be accessed only by the thread that is handling the owning connection. Hence, they must not be subject to defragmenting. ha_innobase::optimize(): Do not add temporary tables to the defragment_table() queue.
143 lines
4 KiB
Text
143 lines
4 KiB
Text
--source include/have_innodb.inc
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--source include/big_test.inc
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--source include/not_valgrind.inc
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--source include/not_embedded.inc
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--source include/have_sequence.inc
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SET @n_pages= @@GLOBAL.innodb_defragment_n_pages;
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SET @accuracy= @@GLOBAL.innodb_defragment_stats_accuracy;
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SET @sp= @@GLOBAL.innodb_stats_persistent;
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SET GLOBAL innodb_stats_persistent = 0;
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set global innodb_defragment_stats_accuracy = 80;
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# Create table.
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#
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# TODO: Currently we do not defragment spatial indexes,
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# because doing it properly would require
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# appropriate logic around the SSN (split
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# sequence number).
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#
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# Also do not defragment auxiliary tables related to FULLTEXT INDEX.
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#
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# Both types added to this test to make sure they do not cause
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# problems.
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#
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CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
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b VARCHAR(256),
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c INT,
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g GEOMETRY NOT NULL,
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t VARCHAR(256),
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KEY second(a, b),
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KEY third(c),
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SPATIAL gk(g),
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FULLTEXT INDEX fti(t)) ENGINE=INNODB;
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connect (con1,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
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connect (con2,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
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connect (con3,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
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connect (con4,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
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connection default;
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SET @@global.innodb_defragment_n_pages = 20;
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CREATE TEMPORARY TABLE tt (a INT, KEY(a)) ENGINE=InnoDB ROW_FORMAT=REDUNDANT;
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INSERT INTO tt SELECT 0 FROM seq_1_to_180;
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INSERT INTO tt SELECT 5 FROM seq_1_to_160;
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INSERT INTO tt SELECT 1 FROM seq_1_to_1000;
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OPTIMIZE TABLE tt;
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let $data_size = 20000;
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let $delete_size = 2000;
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# Populate table.
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let $i = $data_size;
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--disable_query_log
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while ($i)
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{
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eval
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INSERT INTO t1 VALUES ($data_size + 1 - $i, REPEAT('A', 256), $i, Point($i,$i), 'This is a test message.');
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dec $i;
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}
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--enable_query_log
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select count(*) from t1;
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select count(*) from t1 force index (second);
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select count(*) from t1 force index (third);
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# Delete some data
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--disable_query_log
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let $size = $delete_size;
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while ($size)
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{
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let $j = 100 * $size;
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eval delete from t1 where a between $j - 20 and $j;
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dec $size;
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}
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--enable_query_log
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select count(*) from t1;
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select count(*) from t1 force index (second);
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select count(*) from t1 force index (third);
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# Above delete will free some pages and insert causes page split and these could cause defrag
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_pages_freed');
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_page_split');
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_leaf_pages_defrag');
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connection con1;
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--send optimize table t1;
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connection default;
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--send INSERT INTO t1 VALUES (400000, REPEAT('A', 256),300000, Point(1,1),'More like a test but different.');
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connection con2;
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--send INSERT INTO t1 VALUES (500000, REPEAT('A', 256),400000, Point(1,1),'Totally different text book.');
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connection con3;
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--send DELETE FROM t1 where a between 1 and 100;
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connection con4;
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--send UPDATE t1 SET c = c + 1 where c between 2000 and 8000;
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connection con1;
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--disable_result_log
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--reap
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--enable_result_log
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connection con2;
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--reap
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connection con3;
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--reap
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connection con4;
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--reap
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connection default;
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--reap
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disconnect con1;
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disconnect con2;
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disconnect con3;
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disconnect con4;
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optimize table t1;
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check table t1 extended;
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select count(*) from t1;
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select count(*) from t1 force index (second);
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select count(*) from t1 force index (third);
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# Now pages are freed
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_pages_freed');
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_page_split');
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_leaf_pages_defrag');
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drop table t1;
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# reset system
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SET GLOBAL innodb_defragment_n_pages = @n_pages;
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SET GLOBAL innodb_defragment_stats_accuracy = @accuracy;
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SET GLOBAL innodb_stats_persistent = @sp;
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