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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.
87 lines
2.4 KiB
PHP
87 lines
2.4 KiB
PHP
# ==== Purpose ====
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#
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# Auxiliary file used by suite/rpl/t/rpl_test_framework.test
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#
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# The purpose is to check that the sync chain generated in
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# rpl_change_topology.inc (invoked from rpl_init.inc) is correct. This
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# is done in two ways:
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# (1) Print the sync chain.
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# (2) Execute a statement and verify that it replicates to all slaves.
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#
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#
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# ==== Implementation ====
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#
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# Does this:
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# (1) Set up a given replication topology (rpl_init.inc)
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# (2) Print $rpl_sync_chain
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# (3) Execute "DELETE FROM t1" and then "INSERT INTO t1" on the master
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# (4) Sync and compare all servers.
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# (5) Clean up the replication topology (rpl_end.inc)
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#
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# (Technical detail: Since DELETE FROM t1 is not executed at the end,
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# some servers may have rows left in t1 from a previous invocation of
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# rpl_test_framework.inc. Therefore, this file will only work in
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# statement mode where "DELETE FROM t1" removes rows that exist on
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# slave but not on master.)
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#
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#
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# ==== Usage ====
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#
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# --let $rpl_server_count= <number>
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# --let $rpl_topology= <topology specification>
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# --let $masters= <list of masters>
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# [--let $rpl_diff_servers= <list of servers>]
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# --source extra/rpl_tests/rpl_test_framework.inc
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#
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# Parameters:
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# $next_number
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# The INSERT statement will insert $next_number into t1, and
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# $next_number will increase by 1.
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#
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# $rpl_server_count, $rpl_topology:
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# See include/rpl_init.inc
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#
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# $masters
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# This should be a list of numbers, each identifying a server.
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# The DELETE and INSERT statements will be executed on all servers
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# in the list.
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#
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# $rpl_diff_servers
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# See include/rpl_diff.inc
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--source include/rpl_init.inc
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--source include/rpl_generate_sync_chain.inc
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--echo rpl_sync_chain= '$rpl_sync_chain'
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--inc $next_number
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# Iterate over masters
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while ($masters)
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{
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--let $master_i= `SELECT SUBSTRING_INDEX('$masters', ',', 1)`
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--let $masters= `SELECT SUBSTRING('$masters', LENGTH('$master_i') + 2)`
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# Connect to master and execute statement
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--let $rpl_connection_name= server_$master_i
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--source include/rpl_connection.inc
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DELETE FROM t1;
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--eval INSERT INTO t1 VALUES ($next_number)
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}
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--source include/rpl_sync.inc
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# Compare all servers.
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--let $diff_tables= server_$rpl_server_count:t1
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--let $server_i= $rpl_server_count
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--dec $server_i
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while ($server_i)
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{
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--let $diff_tables= server_$server_i:t1,$diff_tables
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--dec $server_i
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}
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--source include/diff_tables.inc
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--let $diff_servers=
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--let $masters=
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--source include/rpl_end.inc
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