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|
# ==== Purpose ====
#
# Test that thread stages set while the replica receiver is
# reconnecting, are translated according to
# terminology_use_previous.
#
# ==== Requirements ====
#
# R1. When the receiver is reconnecting, the stages use terminology
# according to @@session.terminology_use_previous.
#
# ==== Implementation ====
#
# For each value of terminology_use_previous,
# and each of three possible conditions that cause a reconnect,
# and each of two stages that the server passes while reconnecting,
# do the following:
# - Set two debug sync points: one that makes the receiver simulate
# the condition that leads to the reconnect, and one that makes
# the receiver sleep during the given stage.
# - Start the receiver and let it reach the point where it sleeps.
# - Show the thread stage in the test result log.
# - Kill the receiver.
#
# ==== References ====
#
# This was implemented as a post-push fix to the following worklogs:
# WL#14194: Replace old terms in replication system variables, options, and strings
# - Updated stages to use new terminology
# WL#14628: Compatibility option to enable old replication terminology in P_S instrumentation
# - Introduced the compatibility option
# Test is binlog_format-agnostic.
--source include/have_binlog_format_row.inc
# Test uses SET debug to ensure replica pauses in specific stages.
--source include/have_debug.inc
--let $rpl_skip_start_slave = 1
--source include/master-slave.inc
--echo #### Initialize ####
--connection slave
let $messages =
Source command COM_REGISTER_REPLICA failed: failed
Source command COM_BINLOG_DUMP failed: failed
Failed on request_dump.. for channel
;
--source include/suppress_messages.inc
let $reconnect_conditions = [
"failed_registration",
"failed_binlog_dump",
"failed_event_read"
];
let $reconnect_stages = [
"replica_waiting_to_reconnect",
"replica_reconnecting"
];
--let $json_label = condition
--source include/create_json_iterator.inc
--let $json_label = stage
--source include/create_json_iterator.inc
--let $terminology_use_previous = 0
while ($terminology_use_previous < 2) {
--echo
--echo #### Testing terminology_use_previous = $terminology_use_previous ####
eval SET @@session.terminology_use_previous = $terminology_use_previous;
--let $json_array = $reconnect_conditions
--source $json_condition_start
while (!$json_condition_done) {
--let $json_array = $reconnect_stages
--source $json_stage_start
while (!$json_stage_done) {
--echo
--echo ---- $json_stage_value after $json_condition_value ----
# Tell receiver thread to simulate error and cause reconnect
--let $debug_point = simulate_reconnect_after_$json_condition_value
--source include/add_debug_point.inc
# Tell receiver thread to hang at a given stage during reconnect
--let $debug_point = hang_in_stage_$json_stage_value
--source include/add_debug_point.inc
# Make dump thread reach the stage
START REPLICA IO_THREAD;
--let $wait_condition = SELECT COUNT(*) > 0 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE LIKE '%connect%after a failed%'
--source include/wait_condition.inc
# Show the result
SELECT STATE FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE LIKE '%connect%after a failed%';
SELECT STATE FROM performance_schema.processlist WHERE STATE LIKE '%connect%after a failed%';
SELECT PROCESSLIST_STATE FROM performance_schema.threads WHERE PROCESSLIST_STATE LIKE '%connect%after a failed%';
--let $status_items = Slave_IO_State
--source include/show_slave_status.inc
# Remove the debug points, allowing receiver to succeed reconnecting
--let $debug_point = simulate_reconnect_after_$json_condition_value
--source include/remove_debug_point.inc
--let $debug_point = hang_in_stage_$json_stage_value
--source include/remove_debug_point.inc
# Kill receiver thread
--let $thread_id = `SELECT ID FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE LIKE '%connect%after a failed%'`
--replace_result $thread_id THREAD_ID_OF_RECEIVER
eval KILL $thread_id;
--source include/wait_for_slave_io_to_stop.inc
--source $json_stage_next
}
--source $json_condition_next
}
--inc $terminology_use_previous
}
--echo
--echo #### Clean up ####
SET @@session.terminology_use_previous = NONE;
--source include/start_slave.inc
--source include/destroy_json_functions.inc
--source include/rpl_end.inc
|
