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Current File : //home/usr.opt/mysql57/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 --source include/have_myisam.inc --source include/have_innodb.inc # 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