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3c92050d1c
There are separate flags DBUG_OFF for disabling the DBUG facility and ENABLED_DEBUG_SYNC for enabling the DEBUG_SYNC facility. Let us allow debug builds without DEBUG_SYNC. Note: For CMAKE_BUILD_TYPE=Debug, CMakeLists.txt will continue to define ENABLED_DEBUG_SYNC.
53 lines
1.5 KiB
Plaintext
53 lines
1.5 KiB
Plaintext
#
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# Whenever the mysql_binlog_send method (dump thread) reaches the
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# end of file when reading events from the binlog, before checking
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# if it should wait for more events, there was a test to check if
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# the file being read was still active, i.e, it was the last known
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# binlog. However, it was possible that something was written to
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# the binary log and then a rotation would happen, after EOF was
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# detected and before the check for active was performed. In this
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# case, the end of the binary log would not be read by the dump
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# thread, and this would cause the slave to lose updates.
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#
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# This test verifies that the problem has been fixed. It waits
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# during this window while forcing a rotation in the binlog.
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#
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--source include/have_debug.inc
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--source include/have_debug_sync.inc
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--source include/master-slave.inc
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--connection master
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SET @debug_saved= @@GLOBAL.DEBUG_DBUG;
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CREATE TABLE t (i INT);
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# When reaching the EOF the dump thread will wait before deciding if
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# it should move to a new binlong file.
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SET GLOBAL DEBUG_DBUG= "d,wait_after_binlog_EOF";
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INSERT INTO t VALUES (1);
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--sleep 1
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# A insert and a rotate happens before the decision
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INSERT INTO t VALUES (2);
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FLUSH LOGS;
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SET DEBUG_SYNC= 'now SIGNAL signal.rotate_finished';
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--sync_slave_with_master
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# All the rows should be sent to the slave.
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--let $diff_tables=master:t,slave:t
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--source include/diff_tables.inc
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##Clean up
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--connection master
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SET @@GLOBAL.DEBUG_DBUG= @debug_saved;
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SET DEBUG_SYNC= 'RESET';
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DROP TABLE t;
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--source include/rpl_end.inc
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