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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.
103 lines
2.8 KiB
PHP
103 lines
2.8 KiB
PHP
# ==== Purpose ====
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#
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# Shut down replication initialized by include/rpl_init.inc.
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#
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# This syncs all servers, executes STOP SLAVE on all servers, executes
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# CHANGE MASTER on all servers, and disconnects all connections
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# configured by rpl_init.inc.
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#
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# It does not execute RESET MASTER or RESET SLAVE, because that would
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# remove binlogs which are possibly useful debug information in case
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# the test case later fails with a result mismatch. If you need that,
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# source include/rpl_reset.inc before you source this file.
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#
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#
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# ==== Usage ====
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#
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# [--let $rpl_only_running_threads= 1]
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# [--let $rpl_debug= 1]
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# --source include/rpl_end.inc
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#
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# Parameters:
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# $rpl_only_running_threads
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# If one or both of the IO and SQL threads is stopped, sync and
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# stop only the threads that are running. See
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# include/rpl_sync.inc and include/stop_slave.inc for details.
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#
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# $rpl_debug
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# See include/rpl_init.inc
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#
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# Note:
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# This script will fail if Last_SQL_Error or Last_IO_Error is
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# nonempty. If you expect an error in the SQL thread, you should
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# normally call this script as follows:
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#
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# --source include/wait_for_slave_sql_error.inc
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# --source include/stop_slave_io.inc
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# RESET SLAVE;
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# --let $rpl_only_running_threads= 1
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# --source include/rpl_end.inc
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#
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#
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# ==== Side effects ====
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#
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# Changes the current connection to 'default'.
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--let $include_filename= rpl_end.inc
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--source include/begin_include_file.inc
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if (!$rpl_inited)
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{
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--die ERROR IN TEST: rpl_end.inc was sourced when replication was not configured. Most likely, rpl_end.inc was sourced twice or rpl_init.inc has not been sourced.
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}
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if ($rpl_debug)
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{
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--echo ---- Check that no slave thread has an error ----
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}
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--let $_rpl_server= $rpl_server_count
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while ($_rpl_server)
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{
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--let $rpl_connection_name= server_$_rpl_server
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--source include/rpl_connection.inc
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# Only check slave threads for error on hosts that were at some
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# point configured as slave.
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--let $_tmp= query_get_value(SHOW SLAVE STATUS, Master_Host, 1)
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if (`SELECT '$_tmp' != 'No such row'`)
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{
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--source include/check_slave_no_error.inc
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}
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--dec $_rpl_server
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}
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--source include/rpl_sync.inc
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--source include/rpl_stop_slaves.inc
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# mtr configures server 2 to be a slave before it runs the test. We
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# have to restore that state now, so we change topology to 1->2.
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--let $rpl_topology= 1->2
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--source include/rpl_change_topology.inc
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--connection default
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--let $_rpl_server= $rpl_server_count
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--let $_rpl_one= _1
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while ($_rpl_server)
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{
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--disconnect server_$_rpl_server
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--disconnect server_$_rpl_server$_rpl_one
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--dec $_rpl_server
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}
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--let $rpl_inited= 0
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# Do not restore connection, because we have disconnected it.
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--let $skip_restore_connection= 1
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--let $include_filename= rpl_end.inc
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--source include/end_include_file.inc
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