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Bug #32709: Assertion failed: trx_data->empty(), file log.cc

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The assertion indicates that some data was left in the transaction
cache when the server was shut down, which means that a previous
statement did not commit or rollback correctly.

What happened was that a bug in the rollback of a transactional
table caused the transaction cache to be emptied, but not reset.
The error can be triggered by having a failing UPDATE or INSERT,
on a transactional table, causing an implicit rollback.

Fixed by always flushing the pending event to reset the state
properly.
This commit is contained in:
Mats Kindahl
2008-09-03 22:04:07 +02:00
parent 83ce448cfe
commit 9755f07279
7 changed files with 77 additions and 0 deletions
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15
sql/sql_class.cc
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@@ -3502,6 +3502,21 @@ int THD::binlog_delete_row(TABLE* table, bool is_trans,
}
int THD::binlog_remove_pending_rows_event(bool clear_maps)
{
DBUG_ENTER(__FUNCTION__);
if (!mysql_bin_log.is_open())
DBUG_RETURN(0);
mysql_bin_log.remove_pending_rows_event(this);
if (clear_maps)
binlog_table_maps= 0;
DBUG_RETURN(0);
}
int THD::binlog_flush_pending_rows_event(bool stmt_end)
{
DBUG_ENTER("THD::binlog_flush_pending_rows_event");