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MW-265 Add support for wsrep_max_ws_rows

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Variable wsrep_max_ws_rows limits the number of rows that a transaction
can insert/update/delete.
This commit is contained in:
Daniele Sciascia
2016-05-03 16:22:01 +02:00
committed by Nirbhay Choubey
parent 10880d67b9
commit 3db92ee433
6 changed files with 252 additions and 3 deletions
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33
sql/handler.cc
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@@ -6098,6 +6098,17 @@ int handler::ha_write_row(uchar *buf)
rows_changed++;
if (unlikely(error= binlog_log_row(table, 0, buf, log_func)))
DBUG_RETURN(error); /* purecov: inspected */
#ifdef WITH_WSREP
current_thd->wsrep_affected_rows++;
if (wsrep_max_ws_rows &&
current_thd->wsrep_exec_mode != REPL_RECV &&
current_thd->wsrep_affected_rows > wsrep_max_ws_rows)
{
current_thd->transaction_rollback_request= TRUE;
my_message(ER_ERROR_DURING_COMMIT, "wsrep_max_ws_rows exceeded", MYF(0));
DBUG_RETURN(ER_ERROR_DURING_COMMIT);
}
#endif /* WITH_WSREP */
DEBUG_SYNC_C("ha_write_row_end");
DBUG_RETURN(0);
@@ -6131,6 +6142,17 @@ int handler::ha_update_row(const uchar *old_data, uchar *new_data)
rows_changed++;
if (unlikely(error= binlog_log_row(table, old_data, new_data, log_func)))
return error;
#ifdef WITH_WSREP
current_thd->wsrep_affected_rows++;
if (wsrep_max_ws_rows &&
current_thd->wsrep_exec_mode != REPL_RECV &&
current_thd->wsrep_affected_rows > wsrep_max_ws_rows)
{
current_thd->transaction_rollback_request= TRUE;
my_message(ER_ERROR_DURING_COMMIT, "wsrep_max_ws_rows exceeded", MYF(0));
return ER_ERROR_DURING_COMMIT;
}
#endif /* WITH_WSREP */
return 0;
}
@@ -6158,6 +6180,17 @@ int handler::ha_delete_row(const uchar *buf)
rows_changed++;
if (unlikely(error= binlog_log_row(table, buf, 0, log_func)))
return error;
#ifdef WITH_WSREP
current_thd->wsrep_affected_rows++;
if (wsrep_max_ws_rows &&
current_thd->wsrep_exec_mode != REPL_RECV &&
current_thd->wsrep_affected_rows > wsrep_max_ws_rows)
{
current_thd->transaction_rollback_request= TRUE;
my_message(ER_ERROR_DURING_COMMIT, "wsrep_max_ws_rows exceeded", MYF(0));
return ER_ERROR_DURING_COMMIT;
}
#endif /* WITH_WSREP */
return 0;
}