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ce3ffefc45
Simplify the tests that are present in MySQL 5.7. Make the table smaller while generating enough undo log. Do not unnecessarily drop tables. trx_purge_initiate_truncate(): Remove two crash injection points (before and after normal redo log checkpoint), because they are not adding any value. Clarify some messages. trx_sys_create_rsegs(): Display the number of active undo tablespaces. srv_undo_tablespaces_init(): When initializing the data files, do not leave srv_undo_tablespaces_active at 0. Do not display that number; let trx_sys_create_rsegs() display it once the final number is known. innodb_params_adjust(): Adjust parameters after startup. innobase_init(): Do not allow innodb_max_undo_size to be less than SRV_UNDO_TABLESPACE_SIZE_IN_PAGES. This avoids unnecessary repeated truncation of undo tablespaces when using innodb_page_size=32k or innodb_page_size=64k.
72 lines
1.9 KiB
Text
72 lines
1.9 KiB
Text
#
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# WL#6965: Truncate UNDO logs.
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#
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--source include/have_innodb.inc
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--source include/have_innodb_max_16k.inc
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--source include/have_undo_tablespaces.inc
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# The test is restarting the server to force undo truncation.
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--source include/not_embedded.inc
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SET GLOBAL innodb_fast_shutdown=0;
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--let $restart_parameters=--innodb_undo_tablespaces=2 --innodb_undo_logs=4
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--source include/restart_mysqld.inc
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let MYSQLD_DATADIR = `select @@datadir`;
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#-----------------------------------------------------------------------------
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#
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# 1. Perform enough DML action so that undo tablespace size grows beyond
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# set threshold and then wait and see if it is being truncated.
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#
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create table t1(keyc int primary key, c1 char(100)) engine = innodb;
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begin;
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--disable_query_log
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let $i=30000;
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while ($i) {
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eval insert into t1 values(30000-$i, '');
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dec $i;
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}
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--enable_query_log
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update t1 set c1 = 'mysql';
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update t1 set c1 = 'oracle';
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delete from t1;
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commit;
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drop table t1;
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let CHECKFILE = $MYSQL_TMP_DIR/check.txt;
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perl;
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($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size1)
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= stat("$ENV{MYSQLD_DATADIR}/undo001");
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($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size2)
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= stat("$ENV{MYSQLD_DATADIR}/undo002");
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open(OUT, ">$ENV{CHECKFILE}") || die;
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print OUT "let \$size1='$size1,$size2';\n";
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close(OUT);
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EOF
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SET GLOBAL innodb_fast_shutdown=0;
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SET GLOBAL innodb_undo_log_truncate=1;
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SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
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--source include/shutdown_mysqld.inc
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--source $CHECKFILE
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perl;
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($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size1)
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= stat("$ENV{MYSQLD_DATADIR}/undo001");
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($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size2)
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= stat("$ENV{MYSQLD_DATADIR}/undo002");
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open(OUT, ">$ENV{CHECKFILE}") || die;
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print OUT "let \$size2='$size1,$size2';\n";
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close(OUT);
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EOF
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--source $CHECKFILE
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--remove_file $CHECKFILE
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if ($size1 == $size2)
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{
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echo Truncation did not happen: $size1 == $size2;
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}
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--let $restart_parameters=
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--source include/start_mysqld.inc
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