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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.
178 lines
8.4 KiB
Plaintext
178 lines
8.4 KiB
Plaintext
# ==== Purpose ====
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#
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# Check replication protocol packet size handling
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#
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# ==== Related bugs ====
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# Bug#19402 SQL close to the size of the max_allowed_packet fails on slave
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# BUG#23755: Replicated event larger that max_allowed_packet infinitely re-transmits
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# BUG#42914: No LAST_IO_ERROR for max_allowed_packet errors
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# BUG#55322: SHOW BINLOG EVENTS increases @@SESSION.MAX_ALLOWED_PACKET
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# max-out size db name
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source include/master-slave.inc;
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source include/have_binlog_format_row.inc;
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call mtr.add_suppression("Slave I/O: Got a packet bigger than 'max_allowed_packet' bytes, Error_code: 1153");
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call mtr.add_suppression("Slave I/O: Got fatal error 1236 from master when reading data from binary log:");
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let $db= DB_NAME_OF_MAX_LENGTH_AKA_NAME_LEN_64_BYTES_____________________;
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disable_warnings;
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eval drop database if exists $db;
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enable_warnings;
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eval create database $db;
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connection master;
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let $old_max_allowed_packet= `SELECT @@global.max_allowed_packet`;
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let $old_net_buffer_length= `SELECT @@global.net_buffer_length`;
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SET @@global.max_allowed_packet=1024;
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SET @@global.net_buffer_length=1024;
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# Restart slave for setting to take effect
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connection slave;
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source include/stop_slave.inc;
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source include/start_slave.inc;
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# Reconnect to master for new setting to take effect
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disconnect master;
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# alas, can't use eval here; if db name changed apply the change here
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connect (master,localhost,root,,DB_NAME_OF_MAX_LENGTH_AKA_NAME_LEN_64_BYTES_____________________);
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connection master;
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select @@net_buffer_length, @@max_allowed_packet;
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create table `t1` (`f1` LONGTEXT) ENGINE=MyISAM;
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INSERT INTO `t1`(`f1`) VALUES ('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa1023');
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sync_slave_with_master;
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eval select count(*) from `$db`.`t1` /* must be 1 */;
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SHOW STATUS LIKE 'Slave_running';
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select * from information_schema.session_status where variable_name= 'SLAVE_RUNNING';
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connection master;
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eval drop database $db;
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sync_slave_with_master;
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#
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# Bug #23755: Replicated event larger that max_allowed_packet infinitely re-transmits
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#
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# Check that a situation when the size of event on the master is greater than
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# max_allowed_packet on the slave does not lead to infinite re-transmits.
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connection master;
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# Change the max packet size on master
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SET @@global.max_allowed_packet=4096;
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SET @@global.net_buffer_length=4096;
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# Restart slave for new setting to take effect
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connection slave;
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source include/stop_slave.inc;
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source include/start_slave.inc;
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# Reconnect to master for new setting to take effect
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disconnect master;
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connect (master, localhost, root);
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connection master;
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CREATE TABLE `t1` (`f1` LONGTEXT) ENGINE=MyISAM;
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sync_slave_with_master;
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connection master;
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INSERT INTO `t1`(`f1`) VALUES ('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa2048');
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#
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# Bug#42914: The slave I/O thread must stop after trying to read the above
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# event, However there is no Last_IO_Error report.
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#
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# The slave I/O thread must stop after trying to read the above event
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connection slave;
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# 1153 = ER_NET_PACKET_TOO_LARGE
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--let $slave_io_errno= 1153
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--let $show_slave_io_error= 1
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--source include/wait_for_slave_io_error.inc
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# TODO: this is needed because of BUG#55790. Remove once that is fixed.
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--source include/stop_slave_sql.inc
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#
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# Bug#42914: On the master, if a binary log event is larger than
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# max_allowed_packet, the error message ER_MASTER_FATAL_ERROR_READING_BINLOG
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# is sent to a slave when it requests a dump from the master, thus leading the
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# I/O thread to stop. However, there is no Last_IO_Error reported.
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#
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--let $rpl_only_running_threads= 1
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--source include/rpl_reset.inc
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--connection master
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DROP TABLE t1;
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--sync_slave_with_master
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connection master;
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CREATE TABLE t1 (f1 int PRIMARY KEY, f2 LONGTEXT, f3 LONGTEXT) ENGINE=MyISAM;
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sync_slave_with_master;
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connection master;
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INSERT INTO t1(f1, f2, f3) VALUES(1, REPEAT('a', @@global.max_allowed_packet), REPEAT('b', @@global.max_allowed_packet));
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connection slave;
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# The slave I/O thread must stop after receiving
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# 1236=ER_MASTER_FATAL_ERROR_READING_BINLOG error message from master.
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--let $slave_io_errno= 1236
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--let $show_slave_io_error= 1
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--source include/wait_for_slave_io_error.inc
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# Remove the bad binlog and clear error status on slave.
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STOP SLAVE;
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RESET SLAVE;
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--connection master
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RESET MASTER;
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#
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# BUG#55322: SHOW BINLOG EVENTS increases @@SESSION.MAX_ALLOWED_PACKET
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#
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# In BUG#55322, @@session.max_allowed_packet increased each time SHOW
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# BINLOG EVENTS was issued. To verify that this bug is fixed, we
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# execute SHOW BINLOG EVENTS twice and check that max_allowed_packet
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# never changes. We turn off the result log because we don't care
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# about the contents of the binlog.
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--disable_result_log
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SET @max_allowed_packet_0= @@session.max_allowed_packet;
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SHOW BINLOG EVENTS;
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SET @max_allowed_packet_1= @@session.max_allowed_packet;
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SHOW BINLOG EVENTS;
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SET @max_allowed_packet_2= @@session.max_allowed_packet;
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--enable_result_log
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if (`SELECT NOT(@max_allowed_packet_0 = @max_allowed_packet_1 AND @max_allowed_packet_1 = @max_allowed_packet_2)`)
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{
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--echo ERROR: max_allowed_packet changed after executing SHOW BINLOG EVENTS
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--source include/show_rpl_debug_info.inc
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SELECT @max_allowed_packet_0, @max_allowed_packet_1, @max_allowed_packet_2;
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--die @max_allowed_packet changed after executing SHOW BINLOG EVENTS
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}
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--echo ==== clean up ====
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connection master;
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DROP TABLE t1;
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eval SET @@global.max_allowed_packet= $old_max_allowed_packet;
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eval SET @@global.net_buffer_length= $old_net_buffer_length;
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# slave is stopped
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connection slave;
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DROP TABLE t1;
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# Clear Last_IO_Error
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RESET SLAVE;
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--source include/rpl_end.inc
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# End of tests
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