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# === Purpose ===
# Check FLUSH BINARY LOGS operation is mutually exclusive with BACKUP lock.
#
# === Requirements ===
# R1. FLUSH BINARY LOGS must skip purge operation when executed
# with LOCK INSTANCE FOR BACKUP statement
#
# === Implementation ===
# 1. Initialize
# 2. Lock instance for backup
# 3. Flush binary logs so replay log is purged
# 4. Check that relay logs have not been purged
# 5. Unlock instance
# 6. Generate log purge
# 7. Check relay logs have been purged
#
# === References ===
# Bug#35342521 Binary log purge should hold IX backup lock
#
--source include/have_debug.inc
--source include/have_debug_sync.inc
--source include/have_binlog_format_row.inc
--echo #
--echo # Initialize
--echo #
--let $MYSQLD_DATADIR = `SELECT @@datadir`
--let $binlog_expire_logs_seconds_saved = `SELECT @@global.binlog_expire_logs_seconds`
SET @@global.binlog_expire_logs_seconds = 1;
RESET MASTER;
FLUSH BINARY LOGS;
FLUSH BINARY LOGS;
--echo #
--echo # Lock instance for backup
--echo #
--connect (con1, localhost, root,,)
--let $rpl_connection_name = con1
--source include/rpl_connection.inc
LOCK INSTANCE FOR BACKUP;
--echo #
--echo # Flush binary logs so binary logs are purged
--echo #
--let $rpl_connection_name = default
--source include/rpl_connection.inc
--source include/save_error_log_position.inc
--let $before_flush = query_get_value(SHOW BINARY LOGS, Log_name, 1)
# wait longer than binlog_expire_logs_seconds
--sleep 2
FLUSH BINARY LOGS;
--let $after_flush = query_get_value(SHOW BINARY LOGS, Log_name, 1)
--echo #
--echo # Check that binary logs have not been purged
--echo #
--assert($before_flush == $after_flush)
--let $error_pattern = Could not purge binary logs since another session is executing LOCK INSTANCE FOR BACKUP. Wait for that session to release the lock.
--source include/assert_error_log.inc
--echo #
--echo # Unlock instance
--echo #
--let $rpl_connection_name = con1
--source include/rpl_connection.inc
UNLOCK INSTANCE;
--echo #
--echo # Generate log purge
--echo #
--let $rpl_connection_name = default
--source include/rpl_connection.inc
--source include/save_error_log_position.inc
--let $before_flush = query_get_value(SHOW BINARY LOGS, Log_name, 1)
FLUSH BINARY LOGS;
--let $after_flush = query_get_value(SHOW BINARY LOGS, Log_name, 1)
--echo #
--echo # Check relay logs have been purged
--echo #
--assert($before_flush != $after_flush)
--let $error_pattern = NONE
--source include/assert_error_log.inc
--echo #
--echo # Cleanup
--echo #
--replace_result $binlog_expire_logs_seconds_saved BINLOG_EXPIRE_LOGS_SECONDS_SAVED
--eval SET @@global.binlog_expire_logs_seconds = $binlog_expire_logs_seconds_saved
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