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09c80e12c5
Major replication test framework cleanup. This does the following:
- Ensure that all tests clean up the replication state when they
finish, by making check-testcase check the output of SHOW SLAVE STATUS.
This implies:
- Slave must not be running after test finished. This is good
because it removes the risk for sporadic errors in subsequent
tests when a test forgets to sync correctly.
- Slave SQL and IO errors must be cleared when test ends. This is
good because we will notice if a test gets an unexpected error in
the slave threads near the end.
- We no longer have to clean up before a test starts.
- Ensure that all tests that wait for an error in one of the slave
threads waits for a specific error. It is no longer possible to
source wait_for_slave_[sql|io]_to_stop.inc when there is an error
in one of the slave threads. This is good because:
- If a test expects an error but there is a bug that causes
another error to happen, or if it stops the slave thread without
an error, then we will notice.
- When developing tests, wait_for_*_to_[start|stop].inc will fail
immediately if there is an error in the relevant slave thread.
Before this patch, we had to wait for the timeout.
- Remove duplicated and repeated code for setting up unusual replication
topologies. Now, there is a single file that is capable of setting
up arbitrary topologies (include/rpl_init.inc, but
include/master-slave.inc is still available for the most common
topology). Tests can now end with include/rpl_end.inc, which will clean
up correctly no matter what topology is used. The topology can be
changed with include/rpl_change_topology.inc.
- Improved debug information when tests fail. This includes:
- debug info is printed on all servers configured by include/rpl_init.inc
- User can set $rpl_debug=1, which makes auxiliary replication files
print relevant debug info.
- Improved documentation for all auxiliary replication files. Now they
describe purpose, usage, parameters, and side effects.
- Many small code cleanups:
- Made have_innodb.inc output a sensible error message.
- Moved contents of rpl000017-slave.sh into rpl000017.test
- Added mysqltest variables that expose the current state of
disable_warnings/enable_warnings and friends.
- Too many to list here: see per-file comments for details.
116 lines
3.8 KiB
Plaintext
116 lines
3.8 KiB
Plaintext
#############################################################################
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# Original Author: JBM #
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# Original Date: Aug/18/2005 #
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#############################################################################
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# TEST: To test the LOAD_FILE() in rbr #
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#############################################################################
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# Change Author: JBM
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# Change Date: 2006-01-16
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# Change: Added Order by for NDB
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##########
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# Includes
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-- source include/master-slave.inc
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-- source include/have_binlog_format_mixed_or_row.inc
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-- source extra/rpl_tests/rpl_loadfile.test
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# BUG#39701: Mixed binlog format does not switch to row mode on LOAD_FILE
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#
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# DESCRIPTION
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#
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# Problem: when using load_file string function and mixed binlogging format
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# there was no switch to row based binlogging format. This leads
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# to scenarios on which the slave replicates the statement and it
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# will try to load the file from local file system, which in most
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# likely it will not exist.
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#
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# Solution:
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# Marking this function as unsafe for statement format, makes the
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# statement using it to be logged in row based format. As such, data
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# replicated from the master, becomes the content of the loaded file.
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# Consequently, the slave receives the necessary data to complete
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# the load_file instruction correctly.
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#
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# IMPLEMENTATION
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#
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# The test is implemented as follows:
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#
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# On Master,
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# i) write to file the desired content.
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# ii) create table and stored procedure with load_file
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# iii) stop slave
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# iii) execute load_file
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# iv) remove file
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#
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# On Slave,
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# v) start slave
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# vi) sync it with master so that it gets the updates from binlog (which
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# should have bin logged in row format).
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#
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# If the the binlog format does not change to row, then the assertion
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# done in the following step fails. This happens because tables differ
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# since the file does not exist anymore, meaning that when slave
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# attempts to execute LOAD_FILE statement it inserts NULL on table
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# instead of the same contents that the master loaded when it executed
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# the procedure (which was executed when file existed).
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#
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# vii) assert that the contents of master and slave
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# table are the same
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--source include/rpl_reset.inc
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connection master;
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let $file= $MYSQLTEST_VARDIR/tmp/bug_39701.data;
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--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
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--eval SELECT repeat('x',20) INTO OUTFILE '$file'
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disable_warnings;
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DROP TABLE IF EXISTS t1;
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enable_warnings;
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CREATE TABLE t1 (t text);
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DELIMITER |;
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CREATE PROCEDURE p(file varchar(4096))
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BEGIN
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INSERT INTO t1 VALUES (LOAD_FILE(file));
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END|
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DELIMITER ;|
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# stop slave before issuing the load_file on master
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connection slave;
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source include/stop_slave.inc;
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connection master;
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# test: check that logging falls back to rbr.
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--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
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--eval CALL p('$file')
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# test: remove the file from the filesystem and assert that slave still
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# gets the loaded file
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remove_file $file;
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# now that the file is removed it is safe (regarding what we want to test)
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# to start slave
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connection slave;
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source include/start_slave.inc;
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connection master;
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sync_slave_with_master;
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# assertion: assert that the slave got the updates even
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# if the file was removed before the slave started,
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# meaning that contents were indeed transfered
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# through binlog (in row format)
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let $diff_tables= master:t1, slave:t1;
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source include/diff_tables.inc;
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# CLEAN UP
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--connection master
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DROP TABLE t1;
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DROP PROCEDURE p;
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--source include/rpl_end.inc
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