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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.
81 lines
2 KiB
PHP
81 lines
2 KiB
PHP
# ==== Purpose ====
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#
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# Reset all replication servers to a clean state:
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#
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# - sync all slaves,
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# - stop all slaves (STOP SLAVE),
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# - remove all binlogs and relay logs (RESET MASTER and RESET SLAVE),
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# - start all slaves again (START SLAVE).
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#
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# It does not execute CHANGE MASTER, so the replication topology is
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# kept intact.
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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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# [--let $slave_timeout= NUMBER]
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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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# $slave_timeout
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# Set the timeout when waiting for slave threads to stop and
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# start, respectively. See include/wait_for_slave_param.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 do this before you source include/rpl_reset.inc:
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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 $include_filename= rpl_reset.inc
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--source include/begin_include_file.inc
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if (!$rpl_debug)
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{
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--disable_query_log
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}
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--source include/rpl_sync.inc
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if ($rpl_debug)
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{
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--echo ---- Stop and reset all servers ----
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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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# Check if this server is configured to have a master
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if (`SELECT SUBSTRING('$rpl_master_list', 1 + ($_rpl_server - 1) * $rpl_server_count_length, $rpl_server_count_length) != ''`)
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{
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--source include/stop_slave.inc
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RESET SLAVE;
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}
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RESET MASTER;
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--dec $_rpl_server
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}
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--source include/rpl_start_slaves.inc
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--let $include_filename= rpl_reset.inc
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--source include/end_include_file.inc
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