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a9d00db155
contains a bad and a good copy Clean up the InnoDB doublewrite buffer code. buf_dblwr_init_or_load_pages(): Do not add empty pages to the buffer. buf_dblwr_process(): Do consider changes to pages that are all zero. Do not abort when finding a corrupted copy of a page in the doublewrite buffer, because there could be multiple copies in the doublewrite buffer, and only one of them needs to be good.
83 lines
2.1 KiB
Plaintext
83 lines
2.1 KiB
Plaintext
--source include/have_innodb.inc
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# Testing group commit by crashing a few times.
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# Test adapted from the Facebook patch: lp:mysqlatfacebook
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--source include/not_embedded.inc
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# Don't test this under valgrind, memory leaks will occur
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--source include/not_valgrind.inc
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# Binary must be compiled with debug for crash to occur
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--source include/have_debug.inc
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--source include/have_log_bin.inc
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let $file_format_max=`SELECT @@innodb_file_format_max`;
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CREATE TABLE t1(a CHAR(255),
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b CHAR(255),
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c CHAR(255),
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d CHAR(255),
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id INT,
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PRIMARY KEY(id)) ENGINE=InnoDB;
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create table t2 like t1;
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delimiter //;
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create procedure setcrash(IN i INT)
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begin
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CASE i
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WHEN 1 THEN SET SESSION debug_dbug="d,crash_commit_after_prepare";
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WHEN 2 THEN SET SESSION debug_dbug="d,crash_commit_after_log";
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WHEN 3 THEN SET SESSION debug_dbug="d,crash_commit_before_unlog";
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WHEN 4 THEN SET SESSION debug_dbug="d,crash_commit_after";
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WHEN 5 THEN SET SESSION debug_dbug="d,crash_commit_before";
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ELSE BEGIN END;
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END CASE;
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end //
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delimiter ;//
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# Avoid getting a crashed mysql.proc table.
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FLUSH TABLES;
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let $numtests = 5;
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let $numinserts = 10;
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while ($numinserts)
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{
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dec $numinserts;
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eval INSERT INTO t2(a, b, c, d, id) VALUES ('a', 'b', 'c', 'd', $numinserts+1);
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}
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--enable_reconnect
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while ($numtests)
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{
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SET binlog_format= mixed;
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RESET MASTER;
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START TRANSACTION;
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insert into t1 select * from t2;
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# Write file to make mysql-test-run.pl expect crash
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--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
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eval call setcrash($numtests);
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# Run the crashing query
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--error 2006,2013
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COMMIT;
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# Poll the server waiting for it to be back online again.
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--source include/wait_until_connected_again.inc
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# table and binlog should be in sync.
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SELECT * FROM t1 ORDER BY id;
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--replace_column 2 # 5 #
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SHOW BINLOG EVENTS LIMIT 4,1;
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delete from t1;
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dec $numtests;
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}
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# final cleanup
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DROP TABLE t1;
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DROP TABLE t2;
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DROP PROCEDURE setcrash;
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--disable_query_log
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eval SET GLOBAL innodb_file_format_max=$file_format_max;
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--enable_query_log
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