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0697ee265f
Keep track of how many pending XIDs (transactions that are prepared in storage engine and written into binlog, but not yet durably committed on disk in the engine) there are in each binlog. When the count of one binlog drops to zero, write a new binlog checkpoint event, telling which is the oldest binlog with pending XIDs. When doing XA recovery after a crash, check the last binlog checkpoint event, and scan all binlog files from that point onwards for XIDs that must be committed if found in prepared state inside engine. Remove the code in binlog rotation that waits for all prepared XIDs to be committed before writing a new binlog file (this is no longer necessary when recovery can scan multiple binlog files).
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 3,1;
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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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