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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.
106 lines
2.7 KiB
PHP
106 lines
2.7 KiB
PHP
# ==== Purpose ====
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#
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# Print status information for replication, typically used to debug
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# test failures.
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#
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# The following is printed on the current connection:
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#
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# SELECT NOW()
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# SHOW SLAVE STATUS
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# SHOW MASTER STATUS
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# SHOW PROCESSLIST
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# SHOW BINLOG EVENTS IN <binlog_name>
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#
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# Where <binlog_name> is the currently active binlog.
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#
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# Then, the same is printed from all connections configured by
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# rpl_init.inc - i.e., on connection server_N, where
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# 1 <= N <= $rpl_server_count
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#
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#
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# ==== Usage ====
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#
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# [--let $rpl_only_current_connection= 1]
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# --source include/show_rpl_debug_info.inc
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#
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# Parameters:
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# $rpl_only_current_connection
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# By default, debug info is printed from all connections, starting
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# with the current connection. If this variable is set, debug
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# info is printed only for the current connection.
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#
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#
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# ==== Side effects ====
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#
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# Turns on enable_query_log, enable_result_log, enable_warnings,
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# horizontal_results, and enable_abort_on_error.
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#
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# Prints non-deterministic output to the query log. This file should
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# never be called in a test that does not fail.
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--enable_query_log
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--enable_result_log
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--enable_warnings
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--disable_abort_on_error
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--horizontal_results
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--let $_rpl_old_con= $CURRENT_CONNECTION
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--let $_rpl_is_first_server= 1
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--let $_rpl_server= $rpl_server_count
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--inc $_rpl_server
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while ($_rpl_server)
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{
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if (!$_rpl_is_first_server)
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{
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--connection server_$_rpl_server
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}
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--echo
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--echo ############################## $CURRENT_CONNECTION ##############################
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--echo
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--echo **** SHOW WARNINGS on $CURRENT_CONNECTION ****
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SHOW WARNINGS;
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--echo
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--echo **** SELECT replication-related variables on $CURRENT_CONNECTION ****
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SELECT NOW(), @@SERVER_ID;
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--echo
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--echo **** SHOW SLAVE STATUS on $CURRENT_CONNECTION ****
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query_vertical SHOW SLAVE STATUS;
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--echo
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--echo **** SHOW MASTER STATUS on $CURRENT_CONNECTION ****
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query_vertical SHOW MASTER STATUS;
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--echo
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--echo **** SHOW SLAVE HOSTS on $CURRENT_CONNECTION ****
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query_vertical SHOW SLAVE HOSTS;
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--echo
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--echo **** SHOW PROCESSLIST on $CURRENT_CONNECTION ****
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SHOW PROCESSLIST;
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--echo
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--echo **** SHOW BINARY LOGS on $CURRENT_CONNECTION ****
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SHOW BINARY LOGS;
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--echo
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--echo **** SHOW BINLOG EVENTS on $CURRENT_CONNECTION ****
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let $binlog_name= query_get_value("SHOW MASTER STATUS", File, 1);
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--echo binlog_name = '$binlog_name'
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eval SHOW BINLOG EVENTS IN '$binlog_name';
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--let $_rpl_is_first_server= 0
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--dec $_rpl_server
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# Don't use same connection twice.
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if (`SELECT 'server_$_rpl_server' = '$_rpl_old_con'`)
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{
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--dec $_rpl_server
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if ($rpl_only_current_connection)
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{
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--let $_rpl_server= 0
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}
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}
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}
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--connection $_rpl_old_con
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--enable_abort_on_error
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