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MDEV-20370 Crash after OPTIMIZE TABLE on TEMPORARY TABLE

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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.
This commit is contained in:
Marko Mäkelä
2020-03-17 16:28:16 +02:00
parent e61b99073f
commit ab0034a789
3 changed files with 32 additions and 21 deletions
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31
mysql-test/suite/innodb/t/innodb_defrag_concurrent.test
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@ -2,17 +2,13 @@
--source include/big_test.inc
--source include/not_valgrind.inc
--source include/not_embedded.inc
--source include/have_sequence.inc
--disable_warnings
DROP TABLE if exists t1;
--enable_warnings
SET @n_pages= @@GLOBAL.innodb_defragment_n_pages;
SET @accuracy= @@GLOBAL.innodb_defragment_stats_accuracy;
SET @sp= @@GLOBAL.innodb_stats_persistent;
--disable_query_log
let $innodb_defragment_n_pages_orig=`select @@innodb_defragment_n_pages`;
let $innodb_defragment_stats_accuracy_orig=`select @@innodb_defragment_stats_accuracy`;
--enable_query_log
select @@global.innodb_stats_persistent;
SET GLOBAL innodb_stats_persistent = 0;
set global innodb_defragment_stats_accuracy = 80;
# Create table.
@ -46,6 +42,12 @@ connection default;
SET @@global.innodb_defragment_n_pages = 20;
CREATE TEMPORARY TABLE tt (a INT, KEY(a)) ENGINE=InnoDB ROW_FORMAT=REDUNDANT;
INSERT INTO tt SELECT 0 FROM seq_1_to_180;
INSERT INTO tt SELECT 5 FROM seq_1_to_160;
INSERT INTO tt SELECT 1 FROM seq_1_to_1000;
OPTIMIZE TABLE tt;
let $data_size = 20000;
let $delete_size = 2000;
@ -60,7 +62,7 @@ while ($i)
}
--enable_query_log
select count(*) from t1;
select count(*) from t1;
select count(*) from t1 force index (second);
select count(*) from t1 force index (third);
@ -75,7 +77,7 @@ while ($size)
}
--enable_query_log
select count(*) from t1;
select count(*) from t1;
select count(*) from t1 force index (second);
select count(*) from t1 force index (third);
@ -136,7 +138,6 @@ select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like
drop table t1;
# reset system
--disable_query_log
EVAL SET GLOBAL innodb_defragment_n_pages = $innodb_defragment_n_pages_orig;
EVAL SET GLOBAL innodb_defragment_stats_accuracy = $innodb_defragment_stats_accuracy_orig;
--enable_query_log
SET GLOBAL innodb_defragment_n_pages = @n_pages;
SET GLOBAL innodb_defragment_stats_accuracy = @accuracy;
SET GLOBAL innodb_stats_persistent = @sp;