Current File : //usr/share/mysql-test/suite/binlog/t/binlog_rotate_bgc_sync.test
# ==== Purpose ====
#
# This test will try to rotate the binary log of the server while binary log
# group commit sync stage tries to sync the recently flushed binary log group.
#
# As binary log group commit releases the binary log's LOCK_log right after
# finishing the flush stage and entering the sync stage, the rotate procedure
# (executed by MYSQL_BIN_LOG::new_file_impl) will be able take LOCK_log, but
# it will delay the binary log rotation until the amount of prepared
# transactions not yet committed be zero or the binary log group commit sync
# stage has finished.
#
# ==== Related Bugs and Worklogs ====
#
# BUG#22245619 SERVER ABORT AFTER SYNC STAGE OF THE COMMIT FAILS
#
# This test case is binary log format agnostic
--source include/have_binlog_format_row.inc
--source include/have_debug_sync.inc
# Set the options to hit the issue
SET @saved_binlog_error_action= @@GLOBAL.binlog_error_action;
SET GLOBAL binlog_error_action= ABORT_SERVER;
SET @saved_sync_binlog= @@GLOBAL.sync_binlog;
SET GLOBAL sync_binlog= 2;
# Create two additional connections
# conn1 will do the binary log group commit
# conn2 will rotate the binary log
# the default connection will coordinate the test case activity
--connect(conn1,localhost,root,,test)
--connect(conn2,localhost,root,,test)
--let $engine= MyISAM
while ($engine)
{
--let $rpl_connection_name= conn1
--source include/rpl_connection.inc
# Create a new table
--eval CREATE TABLE t1 (c1 INT) ENGINE=$engine
# Make the server to hold before syncing the binary log group
SET DEBUG_SYNC= 'before_sync_binlog_file SIGNAL holding_before_bgc_sync_binlog_file WAIT_FOR continue_bgc_sync_binlog_file';
--send INSERT INTO t1 VALUES (1)
--let $rpl_connection_name= conn2
--source include/rpl_connection.inc
# Wait until it reached the sync binary log group
SET DEBUG_SYNC= 'NOW WAIT_FOR holding_before_bgc_sync_binlog_file';
# Make the server to hold while rotating the binary log
# It can hold in two places:
# a) waiting before all flushed transactions with Xid to be committed;
# b) after closing the old and before opening the new binary log file;
#
# The debug sync will happen at (a) if there are transactions for a
# transactional storage engine or at (b) if there are no transactions
# for a transactional storage engine in the group to be committed.
SET DEBUG_SYNC= 'before_rotate_binlog_file SIGNAL holding_before_rotate_binlog_file WAIT_FOR continue_rotate_binlog_file';
# Rotate the binary log
--send FLUSH LOGS
# Wait until the server reaches the debug sync point while rotating the
# binary log
--let $rpl_connection_name= default
--source include/rpl_connection.inc
SET DEBUG_SYNC= 'now WAIT_FOR holding_before_rotate_binlog_file';
# Let the binary log group commit to sync and continue
SET DEBUG_SYNC= 'now SIGNAL continue_bgc_sync_binlog_file';
# Clear the binary log rotate debug sync point to avoid it to stop twice
SET DEBUG_SYNC= 'before_rotate_binlog_file CLEAR';
# Let the binary log rotate to continue
SET DEBUG_SYNC = 'now SIGNAL continue_rotate_binlog_file';
--let $rpl_connection_name= conn1
--source include/rpl_connection.inc
--reap
--let $rpl_connection_name= conn2
--source include/rpl_connection.inc
--reap
--let $rpl_connection_name= default
--source include/rpl_connection.inc
# Cleanup
DROP TABLE t1;
SET DEBUG_SYNC= 'RESET';
if ($engine == InnoDB)
{
--let $engine=
}
if ($engine == MyISAM)
{
--let $engine= InnoDB
}
}
# Disconnect the additional connections
--disconnect conn1
--disconnect conn2
SET GLOBAL binlog_error_action= @saved_binlog_error_action;
SET GLOBAL sync_binlog= @saved_sync_binlog;
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