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Diffstat (limited to 'mysql-test/t/merge_recover.test')
| -rw-r--r-- | mysql-test/t/merge_recover.test | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/mysql-test/t/merge_recover.test b/mysql-test/t/merge_recover.test new file mode 100644 index 00000000000..f2cb204eeb6 --- /dev/null +++ b/mysql-test/t/merge_recover.test @@ -0,0 +1,113 @@ +--echo # +--echo # Test of MyISAM MRG tables with corrupted children. +--echo # Run with --myisam-recover=force option. +--echo # +--echo # Preparation: we need to make sure that the merge parent +--echo # is never left in the table cache when closed, since this may +--echo # have effect on merge children. +--echo # For that, we set the table cache to minimal size and populate it +--echo # in a concurrent connection. +connect(con1,localhost,root,,test,,); +--echo # +--echo # Switching to connection con1 +--echo # +connection con1; +--echo # +--echo # Minimal values. +--echo # + +call mtr.add_suppression("Got an error from thread_id=.*ha_myisam.cc:"); +call mtr.add_suppression("MySQL thread id .*, query id .* localhost.*root Checking table"); +call mtr.add_suppression(" '\..test.t1'"); + +set global table_open_cache=256; +set global table_definition_cache=400; +--disable_warnings +drop procedure if exists p_create; +--enable_warnings +delimiter |; +create procedure p_create() +begin + declare i int default 1; + set @lock_table_stmt="lock table "; + set @drop_table_stmt="drop table "; + while i < @@global.table_definition_cache + 1 do + set @table_name=concat("t_", i); + set @opt_comma=if(i=1, "", ", "); + set @lock_table_stmt=concat(@lock_table_stmt, @opt_comma, + @table_name, " read"); + set @drop_table_stmt=concat(@drop_table_stmt, @opt_comma, @table_name); + set @create_table_stmt=concat("create table if not exists ", + @table_name, " (a int)"); + prepare stmt from @create_table_stmt; + execute stmt; + deallocate prepare stmt; + set i= i+1; + end while; +end| +delimiter ;| +call p_create(); +drop procedure p_create; +--disable_query_log +let $lock=`select @lock_table_stmt`; +eval $lock; +--enable_query_log +--echo # +--echo # Switching to connection 'default' +--echo # +connection default; +--echo # +--echo # We have to disable the ps-protocol, to avoid +--echo # "Prepared statement needs to be re-prepared" errors +--echo # -- table def versions change all the time with full table cache. +--echo # +--disable_ps_protocol +--disable_warnings +drop table if exists t1, t1_mrg, t1_copy; +--enable_warnings +let $MYSQLD_DATADIR=`select @@datadir`; +--echo # +--echo # Prepare a MERGE engine table, that refers to a corrupted +--echo # child. +--echo # +create table t1 (a int, key(a)) engine=myisam; +create table t1_mrg (a int) union (t1) engine=merge; +--echo # +--echo # Create a table with a corrupted index file: +--echo # save an old index file, insert more rows, +--echo # overwrite the new index file with the old one. +--echo # +insert into t1 (a) values (1), (2), (3); +flush table t1; +--copy_file $MYSQLD_DATADIR/test/t1.MYI $MYSQLD_DATADIR/test/t1_copy.MYI +insert into t1 (a) values (4), (5), (6); +flush table t1; +--remove_file $MYSQLD_DATADIR/test/t1.MYI +--copy_file $MYSQLD_DATADIR/test/t1_copy.MYI $MYSQLD_DATADIR/test/t1.MYI +--remove_file $MYSQLD_DATADIR/test/t1_copy.MYI +--echo # check table is needed to mark the table as crashed. +check table t1; +--echo # +--echo # At this point we have a merge table t1_mrg pointing to t1, +--echo # and t1 is corrupted, and will be auto-repaired at open. +--echo # Check that this doesn't lead to memory corruption. +--echo # +--replace_regex /'.*[\/\\]/'/ +select * from t1_mrg; +--echo # +--echo # Cleanup +--echo # +drop table t1, t1_mrg; +--echo # +--echo # Switching to connection con1 +--echo # +connection con1; +unlock tables; +prepare stmt from @drop_table_stmt; +execute stmt; +deallocate prepare stmt; +set @@global.table_definition_cache=default; +set @@global.table_open_cache=default; +disconnect con1; +connection default; +--enable_ps_protocol |